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The complete application guide to specifying a Smart-Gear® power distribution solution (PDS)E50001-F710-A123-V1-4A00

About this guide

The purpose of this application guide is to help the reader configure a Smart-Gear® PDS switchgear lineup. Each section contains information important in selecting equipment to meet requirements for today’s modern medium-voltage switchgear.

To make it easy to configure a Smart-Gear® PDS switchgear lineup, the various selections in this application guide are presented as building blocks, called application modules. These application modules are described in detail using tables and one-line diagrams.

Each section contains information to help the reader determine the power distribution system configuration that best meets their application, protection, operation and overall functionality needs.

Please note the information contained in this application guide is a general description of the technical options available for Smart-Gear® PDS. Certain features or configurations may not be applicable or appropriate for your specific needs.

Nothing contained in this application guide will constitute a warranty or guarantee by Siemens that the Smart-Gear® PDS or the configurations described in this guide are fit for your intended purposes. Your local Siemens representative will be happy to assist you with configuring a solution to meet your specific needs.

Smart-Gear® power distribution solution (PDS)

Siemens, a world leader in innovative technologies, has taken another step forward by creating the total solution in medium-voltage, metal-clad switchgear.

In response to our customers' need for standard switchgear that is programmable and self-monitoring, Siemens has combined its advanced switchgear, protective relay products and its engineering experience to deliver a total package to customers: Smart-Gear® power distribution solution (PDS).

With Smart-Gear® PDS, users are provided the following features and benefits:

Reduced control wiring for increased reliability ‒ digital and fiber-optic circuits instead of hard-wired circuits

Self-monitoring ‒ feature-rich increased operational reliability

Programmable ‒ easy to implement complex schemes with flexibility for future changes

IEC 61850 communication protocol providing integrated control, monitoring and protection

Usage-based preventive maintenance notification

Faster commissioning and start up.

Smart-Gear® PDS is equipped with standard self-monitoring features, designed specifically to enhance the performance and reliability of the switchgear. With Smart-Gear® PDS, the user is notified in advance of potential problems such as those in trip circuit and space heater circuits. Also, based on the usage of the equipment, the user will be notified when periodic recommended preventive maintenance is needed.

Using IEC 61850 communication protocol, all control, monitoring and protection functions are accomplished through a redundant fiber-optic connection between protective relays and bay controllers. This communications capability reduces the need for much of the control wiring necessary to implement and change complex schemes, resulting in reduced field testing and commissioning time.

Figure 1: Siemens type GM-SG medium-voltage, metal-clad Smart-Gear® PDS switchgear lineup

2

Overview 4-5

Smart features 6-8

Application modules 9

System application modules 10-12

Auxiliary application modules 13

Circuit breaker application modules 14-17

Remote control application modules 18

Special application modules 19

Protection functions and metering 20-22

Communications and controls 23-25

Service and support modules 26-28

Instructions for specifying Smart-Gear® PDS 29-34

Definitions and terminology 35

Smart-Gear® power distribution solution specification form 36-39

Table of contents

4-5

6-8

9

10-12

13

14-17

18

19

20-22

23-25

26-28

29-34

35

36-39

Application-based approach: A new way of specifying switchgear

An application-based approach to configuring switchgear offers a new way of thinking. For example, with an application-based approach, all switchgear functions including automatic transfer schemes, circuit breaker types, protection schemes and other special switchgear functions are described in terms of application modules. When combined, these application modules define the operation and configuration of a Smart-Gear® PDS solution.

All software programs and digital and hard-wired circuits used to perform specific operations or protective functions are referred to as "apps," which are protective relay hardware and software programming (continuous function chart (CFC) programming) designed specifically for application modules.

3

Overview

Smart-Gear® PDS is a programmable and self-monitoring power distribution solution that combines Siemens medium-voltage, air-insulated, metal-clad switchgear and Siemens SIPROTEC® protective relay technology to offer one of the most advanced standardized switchgear solutions in the industry. With its standard self-monitoring features and programmable capabilities, Smart-Gear® PDS redefines how switchgear is specified, engineered, operated, installed and maintained.

Feature rich

Smart-Gear® PDS is rich in standard features, specifically designed to monitor critical functions such as trip circuit integrity, space heater operation, vacuum interrupter wear, circuit breaker status, operations and more.

In traditional switchgear, many of these functions and features have to be specified and engineered specifically to the order, but with Smart-Gear® PDS these self-monitoring features are standard. For a list and description of these features and more, refer to the smart features section beginning on page 6.

4

Overview

Protective relays and metering

Smart-Gear® PDS is supplied with the most advanced protective relays in the industry, Siemens SIPROTEC® protective relays. These protective relays are fully equipped with the advanced protection functions and Ethernet-based IEC 61850 communications protocol over a redundant fiber-optic cable for high-speed data transmission. Refer to protection functions and metering section beginning on page 20 for a detailed description of the protective relay functions provided with Smart-Gear® PDS. For additional details on Siemens SIPROTEC® relays, refer to SIPROTEC® Numerical Protective Relays Catalog SIP 2008 E50001 K4400-A101-A5-7600 or contact your local Siemens representative.

The difference

Smart-Gear® PDS is equipped with more features and benefits than traditional switchgear. All applicable self-monitoring features, described in the smart features section beginning on page 6, are provided with the standard package. These self-monitoring features enhance the reliable performance of the equipment. With Smart-Gear® PDS, less control wiring is required to implement simple or highly complex control schemes. Communication capability enables interface between protective relays for each circuit breaker, interface with other Smart-Gear® PDS switchgear lineups, remote control capability and interface with many SCADA systems deployed with current communication protocols.

Simplification from design and specification, to commissioning and operation, is at the heart of Smart-Gear® PDS, the intelligent choice in your selection of medium-voltage switchgear.

5

Smart features - self-monitoring

Smart-Gear® PDS is provided with standard features designed to monitor the critical functions and controls of the type GM-SG, type GM-SG-AR or type GM38 medium-voltage switchgear. Options can be selected to increase functionality. The information in this section describes the features in detail.

Smart-Gear® PDS is available in two types: SG-64 and SG-80. The specific functionality of the self-monitoring features are dependent on the Smart-Gear® PDS type selected.

Smart features

Table 1: Self-monitoring features3, 4, 5

Features available via protective relay devices Type SG-641 Type SG-802

Circuit breaker operating cycles monitoring Standard Standard

Circuit breaker trip-circuit monitoring Standard Standard

Circuit breaker close-circuit monitoring Standard Not available6

Vacuum interrupter wear monitoring Standard Standard

Integrated controls Standard Standard

Circuit breaker racking position indication Standard Not available6

Integrated power monitoring Standard Standard

Programmable circuit breaker control interlocking Optional Optional

Programmable main-tie-main transfer scheme Optional Optional

Fan cooling monitoring for 4,000 A circuit breaker7 Standard Not available6

Voltage transformer monitoring Standard Standard

Current transformer monitoring Standard Standard

Bus protection (device 50B) Standard Standard

Space heater operation monitoring Standard Standard

Large protective relay display screen Standard Not available6

IEC 61850 communication protocol (only) Standard Standard

Arc-flash detection Optional Optional

Footnotes:1. Type SG-64 Smart-

Gear® PDS equipped with type 7SJ6415 protective relays on feeder, main and tie circuit breakers.

2. Type SG-80 Smart-Gear® PDS is equipped with type 7SJ8041 protective relays on feeder circuit breakers and type 7SJ6415 protective relays on main and tie circuit breakers.

3. MOC and TOC not required for remote control and monitoring using communications when HMI is provided.

4. Circuit breaker operation provided through protective relays. Control switches are not provided.

5. All functions are available via Intelligent Electronic Device (IED) Siemens protective relay.

6. Standard for type 7SJ6415 protective relays furnished on main circuit breakers.

Smart-Gear® PDS types

Table 1 lists the smart features available for a Smart-Gear® PDS switchgear lineup.

All of the smart features are available for Smart-Gear® PDS type SG-64, while type SG-80 offers slightly fewer choices.

7. 4,000 A for types GM-SG and GM-SG-AR switchgear up to 15 kV; 3,000 A for type GM38 switchgear up to 38 kV.

6

Smart features

Standard features

Circuit breaker operating cycles monitoring

This smart feature alerts the user when the drawout circuit breaker is approaching its pre-set threshold of operating cycles for scheduled maintenance. The threshold is pre-set at the factory to provide advance notification at 80 percent usage (20 percent of the remaining operations) of the recommended operations cycle.

Trip-circuit monitoring

In the event of a fault, the user needs confidence that the circuit breaker trip circuit will open the circuit breaker. This feature monitors the integrity of the trip circuit and provides the user notification of non-functionality of the trip circuit resulting from failed trip coil or blown trip-circuit fuse.

Close-circuit monitoring (type SG-64 only)

Monitoring the status of the close circuit is critical in cases where transferring and redirecting power is required, such as with a main-tie-main automatic transfer scheme. This feature monitors the integrity of the close circuit and provides the user notification of non-functionality of the close circuit resulting from a failed close coil or blown close-circuit fuse.

Vacuum interrupter wear monitoring

This smart feature monitors the remaining expected life of the vacuum interrupters by calculating the accumulated load, no-load and short-circuit interruption data. Based on the calculation, the user is given notification of vacuum interrupter contact wear. Means for visual verification of the vacuum interrupter during circuit breaker inspection is standard.

Circuit breaker racking position indication (type SG-64 only)

The position status of the circuit breaker is connected to binary inputs on the protective relay, and is thus available for local and remote monitoring and control logic. The circuit breaker positions include connected, disconnected and test.

Integrated controls

Two things visibly different about Smart- Gear® PDS compared to traditional switchgear are fewer control devices and significantly less control wiring. With Smart-Gear® PDS, the circuit breaker control switch function (CS) and lockout protective relay function (86) are an integral part of the protective relay. Having these control functions in the protective relay enables the user to change control logic electronically without having to change the hard-wired circuitry.

Integrated power monitoring

Main, feeder and tie circuit breakers are equipped with integrated power metering (one percent accuracy) including current, voltage and power measurement functions. Current measurements include Ia, Ib, Ic, min/max and min/max current demand. Voltage measurements include phase voltages and min/max. Power measurements include peak demand kW, peak demand kVAr and peak demand kVA, min/max power factor, min/max frequency, set-points and pulse counter. Min/max data also includes date and time.

Programmable circuit breaker control interlocking (optional)

Continuous function chart (CFC) programming software makes digital circuit breaker interlocking available for a Smart-Gear® PDS. This technology enables interlocking of multiple circuit breakers in the lineup, enabling user modification without complicated and timely wiring changes and retesting. All interunit connectivity between circuit breakers is through IEC 61850 communication protocol over redundant fiber-optic connections.

Figure 2: Siemens type GM38 medium-voltage, metal-clad Smart-Gear® PDS switchgear lineup

7

Smart features

Voltage transformer monitoring

Three-phase, wye-connected (required) voltage transformers are monitored for proper operation including blown fuse and voltage transformer failure. As with other event data, this information is retained in the protective relay ready for local and remote monitoring.

Current transformer monitoring

Current transformers are monitored for proper phase and current summation. Information is retained in the protective relay ready for local and remote monitoring.

Bus protection (device 50B)

Reverse-zone interlocking is used to distinguish a bus fault from a through-fault and uses IEC 61850 generic object oriented substation event (GOOSE) messaging.

Space heater operation monitoring

Space heater functionality is important for long-term operation and reliability of switchgear, particularly under conditions of high humidity or in outdoor applications. Many switchgear failures result from improper use of space heaters including instances in which the space heaters were not energized or were never wired to the power source. With Smart-Gear® PDS, the operation of the space heaters is under constant monitoring to improve the long-term reliability of the power distribution system.

Large display (type SG-64 only)

A large display screen is provided with the Siemens SIPROTEC® type 7SJ6415 protective relay solution and is provided for all main circuit breakers.

IEC 61850 enabled

Each protective relay is equipped with IEC 61850 communication protocol. More information on IEC 61850 is included in the communications and controls section beginning on page 23.

Programmable main-tie-main transfer scheme (optional)

CFC programming software makes digital implementation of automatic transfer schemes available for Smart-Gear® PDS. Like the programmable circuit breaker interlocking feature, this feature enables the user to modify the scheme without complicated and time-consuming wiring changes and retesting. All interunit connectivity between circuit breakers is with redundant fiber-optic connections.

Fan cooling monitoring for fan-cooled circuit breakers (type SG-64 only)

This feature monitors the cooling fan for a 4,000 A circuit breaker (in types GM-SG and GM-SG-AR switchgear up to 15 kV) or 3,000 A circuit breaker (in type GM38 switchgear up to 38 kV). The cooling fan air-flow switch provides the input signal to the protective relay for local and remote monitoring.

Arc-flash detection (optional)

Arc-flash detection is available with Smart-Gear® PDS.

8

Application modules

System application modules

System application modules are used to define the operation and protection of the entire switchgear lineup. All automatic transfer and circuit breaker interlock application modules are implemented with CFC programmed protective relays, IEC 61850 communications over fiber-optic cable. Tables 2, 3 and 4 on pages 10-12 describe these system application modules in detail.

Automatic transfer application modules

With Smart-Gear® PDS, four types of automatic transfer application modules are offered. These digital automatic transfer schemes are configurable for automatic or manual restore, open- or closed-transition and preferred or non-preferred sources. Refer to the definitions and terminology section on page 31 for detailed descriptions of these terms. The available automatic transfer application modules are described in Table 2 on page 10. All time delays and timing will be determined at the engineering stage.

Application modules

This guide uses an application-based approach described on page 3 to configuring Smart-Gear® PDS. All automatic transfer schemes, interlock schemes, circuit breaker types, protection schemes, remote control solutions and interfaces, paralleling solutions and other special applications are described in Smart-Gear® PDS as application modules.

Application modules are the building blocks used for configuring a Smart-Gear® PDS switchgear lineup. These modules are pre-configured applications designed to perform specific functions.

There are five classes of application modules:

1. System application modules

Automatic transfer

Circuit breaker interlocking

Protection

2. Auxiliary application modules

Voltage transformer

Control power transformer

3. Circuit breaker application modules

Main circuit breaker

Tie circuit breaker

Feeder circuit breaker

4. Remote control application modules

SIPROTEC® CBII controller

Local human machine interface (HMI)

SICAM station unit/PAS

Remote electric racking

5. Special application modules

Partial discharge

Arc-flash detection

Transformer assets.

9


Table 2: Automatic transfer application modules

Selective automatic transfer

application modulesApps

Automatic transfer

No preferred

source

Preferred source

Automatic restore

Manually restore

Open transition

Closed transition

Main-tie-main AT1-1 Available Available ----1 ----1 Available ----1 Available

AT1-2 Available Available ----1 ----1 Available Available ----1

AT1-3 Available Available ----1 Available ----1 Available ----1

AT1-4 Available Available ----1 Available ----1 ----1 Available

AT1-5 Available ----1 Available Available ----1 Available ----1

AT1-6 Available ----1 Available Available ----1 ----1 Available

Main-main AT3-1 Available Available ----1 ----1 Available ----1 Available

AT3-2 Available Available ----1 ----1 Available Available ----1

AT3-3 Available Available ----1 Available ----1 Available ----1

AT3-4 Available Available ----1 Available ----1 ----1 Available

AT3-5 Available ----1 Available Available ----1 Available ----1

AT3-6 Available ----1 Available Available ----1 ----1 Available

M ATS M

T

Footnote:1. ----1 means this offering is not available.

M

ATS

M

Automatic transfer system application modues

Other configurations are available. Please consult factory.

10


Circuit breaker interlocking application modules

Circuit breaker interlocking is easily accomplished with CFC programmed protective relays. Digital circuit breaker interlocking schemes are categorized in Table 3 as sequential or selective circuit breaker interlocking. All time delays and timing will be determined at the engineering stage.

Table 3: Circuit breaker interlock application modules

Selective circuit breaker interlock

application modulesApps Name Application description

Circuit breaker-circuit breaker interlocking

BI1

Circuit breaker transfer-

trip interlock

This interlock scheme is programmed to transfer the tripping event between two circuit breakers. Circuit breakers are digitally interlocked using CFC programming so a tripping event of either circuit breaker will trigger the tripping event of the other interlocked circuit breaker. Note: Interlocked circuit breakers will maintain the trip state (unless manually actuated) until normal conditions are restored. Options for this application include time delay and multiple circuit breaker interlocking.

BI2Circuit breaker

interlock

This interlock scheme is programmed to initiate the closing event between two circuit breakers. Circuit breakers are digitally interlocked using CFC programming so a closing event of either circuit breaker will initiate the closing event of the other interlocked circuit breaker. Note: Interlocked circuit breakers will maintain the same trip or closed states (unless manually actuated) under normal and abnormal conditions. Options for this application include time delay and multiple circuit breaker interlocking.

BI3

Circuit breaker

trip-close interlock

This interlock scheme is programmed so the tripping event of a circuit breaker will initiate the closing event of the other interlocked circuit breaker. Circuit breakers are digitally interlocked via CFC programming so a tripping event of either circuit breaker triggers the closing event of the other interlocked circuit breaker. Note: Interlocked circuit breakers will maintain opposite states (unless manually actuated). Options for this application include time delay and multiple circuit breaker interlocking.

Circuit breaker-remote circuit breaker interlocking

RBI1

Remote circuit

breaker transfer-

trip interlock

This interlock scheme is programmed to transfer the tripping event between two circuit breakers. Circuit breakers are digitally interlocked using CFC programming so a tripping event of either circuit breaker will trigger the tripping event of the other interlocked circuit breaker. Note: Interlocked circuit breakers will maintain the trip state (unless manually actuated) until normal conditions are restored. Options for this application include time delay and multiple circuit breaker interlocking.

RBI2

Remote circuit

breaker interlock

This interlock scheme is programmed to initiate the closing event between two circuit breakers. Circuit breakers are digitally interlocked using CFC programming so a closing event of either circuit breaker will initiate the closing event of the other interlocked circuit breaker. Note: Interlocked circuit breakers will maintain the same trip or closed states (unless manually actuated) under normal and abnormal conditions. Options for this application include time delay and multiple circuit breaker interlocking.

RBI3

Remote circuit

breaker trip-close interlock

This interlock scheme is programmed so the tripping event of a circuit breaker will initiate the closing event of the other remote interlocked circuit breaker. Circuit breakers are digitally interlocked via CFC programming so a tripping event of either circuit breaker triggers the closing event of the other interlocked circuit breaker. Note: Interlocked circuit breakers will maintain opposite states (unless manually actuated). Options for this application include time delay and multiple circuit breaker interlocking.

F I R

F I F

11

Protection application modules

Apps Name Application description

Zone selective interlock

ZSIZone

selective interlock

This application module is a cost-effective alternative to the 87B App. Zone selective interlocking, provides high-speed bus protection and involves selective blocking of the high-speed overcurrent protection on the incoming main if any of the feeder overcurrent relays are in pickup. If a fault is not present on any of the load feeders, the incoming main high-speed overcurrent protection is not blocked, providing high-speed and selective protection for bus faults.

Bus differential protection (traditional)

87B

Bus differential protection

(traditional)

This bus differential protection scheme is performed using a Siemens protective relay. Each circuit breaker application module will be equipped with bus differential current transformers.

Transformer differential protection

87T-2W

Two-winding

transformer differential protection

This transformer differential protection application for a two-winding transformer includes an 87T protective relay using Siemens type 7UT612. The application module is used for an incoming transformer circuit breaker or for a transformer distribution feeder circuit breaker.

87T-3W

Three-winding

transformer differential protection

This transformer differential protection application for a three-winding transformer includes an 87T protective relay using Siemens type 7UT613 relay. The application module is used for an incoming transformer circuit breaker or a transformer distribution feeder circuit breaker.

Protection application modules

Three protection application modules have been defined in this section for Smart-Gear® PDS. These application modules are described in Table 4.

Table 4: Protection application modules

OC M

F F

IEC 61850 GOOSE

87BM

F F

87T

52

52


12

Auxiliary application modules

Table 5: Auxiliary application modules


Apps Components list Application description

Line connected voltage transformer

LVT

Three voltage transformers (VTs)

Three primary current limiting fuses (CLF)

Drawout tray

Three secondary fuses

The line connected VTs are connected in a wye-wye configuration. The 120 Vac secondary voltage signal is used for protective relays and metering.

Main bus connected voltage transformer

BVT

Three VTs

Three primary CLF

Drawout tray

Three secondary fuses

The main bus connected VTs are connected in a wye-wye configuration. The 120 Vac secondary voltage signal is used for protective relays and metering.

Line connected control power transformer

LCPT

15 kVA control power transformer (CPT), single phase, 120/240 Vac secondary

Two primary CLF

Drawout tray

Secondary molded-case circuit breaker

The line connected CPT is used for powering auxiliary loads, such as switchgear space heaters, battery chargers, lighting and other auxiliary devices.

Bus connected CPT

BCPT

15 kVA control power transformer (CPT), single phase, 120/240 Vac secondary

Two primary CLF

Drawout tray

Secondary molded-case circuit breaker

The line connected CPT is used for powering auxiliary loads, such as switchgear space heaters, battery chargers, lighting and other auxiliary devices.


Auxiliary application modules are defined by the type of auxiliary device in the compartment and their configuration. There are four basic auxiliary application modules. These application modules cover typical voltage transformers and control power transformers usage.

Table 5 provides a list of the auxiliary application modules available for configuring a Smart-Gear® PDS switchgear lineup.

MB

Fuse CPT

MB

Fuse Three VTs

Three VTs

MB

Fuse

MB

Fuse CPT

Figure 3: 38 kV primary current limiting fuses accessible when fuse truck in disconnect position with access door open

13

Circuit breaker application modules

Figure 4: Siemens circuit breakers

Type 38-3AH3 38 KV circuit breaker for use in type GM38 switchgear

Type GMSG 5 kV-15 KV circuit breaker for use in types GM-SG or GM-SG-AR switchgear


Circuit breaker application modules are defined by the functional requirement (or load type) of a circuit breaker. For Smart-Gear® PDS, there are eight basic circuit breaker application modules. These application modules include main, tie, motor feeder, transformer feeder, distribution feeder and capacitor feeder applications and equipped space or future cell modules.

Each circuit breaker application module (except future cell) is fully equipped with the relay protection necessary to meet the protection requirements of the specific application and functions of the circuit breaker (refer to protection functions and metering section starting on page 20 for additional details on the protective functions of each circuit breaker application module).

Note: For Smart-Gear® PDS type SG-64, all main, tie and feeder circuit breakers are equipped with the Siemens type 7SJ6415 protective relays. For the Smart-Gear® PDS type SG-80, all feeder circuit breakers are equipped with the Siemens type 7SJ80 (or type 7SK80 for motor applications) protective relays, while all main and tie circuit breakers are equipped with Siemens type 7SJ6415 protective relays.

Table 6 on pages 15-17 provides a complete list of the circuit breaker application modules available for configuring a Smart-Gear® PDS switchgear lineup.

14


Apps Components list

Main circuit breaker

MB1

One Siemens type GMSG vacuum circuit breaker 1,200 A, 2,000 A, 3,000 A or 4,000 A@ 4.76 kV, 8.25 kV or 15.0 kV, up to 63 kA for type GM-SG or up to 50 kA for GM-SG-AR switchgear

or

One Siemens type 38-3AH3 vacuum circuit breaker 1,200 A, 2,000 A or 3,000 [email protected] kV up to 40 kA for type GM38 switchgear

plus

One Siemens type 7SJ6415 protective relay

Three standard accuracy CTs type MD for types GM-SG or GM-SG-AR switchgear or type MD38 for type GM38 switchgear

Three line-connected voltage transformers (LVTs)

Fiber-optic cable

One "smart features" package (refer to smart features on page 6)

Optionally availble for this module is a line-connected or bus-connected CPT (refer to auxiliary application modules on page 13 for details).

Tie circuit breaker

TB1


or


plus

One Siemens type 7SJ6415 protective relay


Fiber-optic cable

One "smart features" package (refer to smart features on page 6).

Distribution feeder

DFB1


or


plus

One Siemens type 7SJ6415 protective relay for Smart-Gear® PDS type SG-64 or one Siemens type 7SJ8041 protective relay for Smart-Gear® PDS type SG-80


Fiber-optic cable



MB

Table 6: Circuit breaker application modules (continued)

DB

L L L

TB

15





Motor feeder

MFB1


or


plus

One Siemens type 7SJ6415 protective relay for Smart-Gear® PDS type SG-64 or one Siemens type 7SJ80 protective relay for Smart-Gear® PDS type SG-80

Two Siemens SIPROTEC® RTU boxes (12 RTDs standard)

Three standard accuracy CTs type MD for types GM-SG or GM-SG-AR switchgear or type MD38 for type GM38 switchgears

Fiber-optic cable


Transformer feeder

TFB1


or


plus

One Siemens type 7UT61 protective relay for transformer differential protection

One Siemens type 7SJ6415 protective relay for Smart-Gear® PDS type SG-64 or one Siemens type 7SJ8041 for Smart-Gear® PDS type SG-80

Six standard accuracy CTs type MD for types GM-SG or GM-SG-AR switchgear or type MD38 for type GM38 switchgear

Fiber-optic cable


Capacitor switching

CB1


or


plus

One Siemens type 7SJ6415 protective relay for Smart-Gear® PDS type SG-64 or one Siemens type 7SJ80 for Smart-Gear® PDS type SG-80


Fiber-optic cable


TB

CB

MB

M

16



Equipped space

EQP

One Siemens protective relay selected based on the circuit breaker application module


Fiber-optic cable


Future cell

FUT

One set of primary stabs for 1,200 A, 2,000 A, 3,000 A or 4,000 A (Note: 4,000 A rating available for types GM-SG and GM-SG-AR switchgear only)

One circuit breaker racking mechanism, secondary disconnects, interlocks, etc., ready for future installation of a circuit breaker.

RLY



Figure 5: Siemens type GM-SG-AR medium-voltage, metal-clad Smart-Gear® PDS switchgear lineup

17

Remote control application modules


CBII controller CBII Siemens SIPROTEC® CBII controller

The Siemens SIPROTEC® CBII controller is a cost-effective solution that enables remote

operation of the circuit breakers. This eliminates the need for the user to operate the switchgear while standing in front each circuit breaker. Normal operations, including

opening, closing and obtaining metering data, can be performed without having to stand directly in front of the switchgear.

Local HMI HMI

Siemens type MP370 15" touch screen panel PC

Siemens SICAM PAS CC

Local HMI visualization system is scalable for low and high functionalities. Available with

an XGA resolution (1,024 x 768 pixels) touch screen with 256 colors for pixels and 16

colors for text. With local HMI, the user can operate the circuit breakers via the protective relays, can display status and real time values of all protective relays/circuit breakers and can

view a single-line diagram with dynamic graphics showing status of the power system and the circuit breakers. This module reduces

incident energy exposure by moving the operator away from the front of a circuit

breaker.

SICAM station unit/PAS PAS Siemens SICAM PAS station unit

Siemens PAS CC

Siemens SICAM station unit/PAS provides low hardware and software costs, scalability and flexibility, in an easy-to-use communications

platform with powerful real-time data distribution capability. Siemens SICAM PAS CC

is a scalable processor visualization system. Siemens SICAM PAS station unit supports a

large number of established protocols enabling interoperability.


Table 7: Remote control application modules

Figure 6: Siemens SICAM PAS CC


Remote control application modules are optional upgrade modules available for a Smart-Gear® PDS switchgear lineup and are designed to optimize the operational safety by providing various remote control solutions.

Table 7 describes the remote control options available for a Smart-Gear® PDS switchgear lineup.

18

Special application modules



Partial discharge PD1 Partial discharge system installed and factory

tested

The partial discharge system solution monitors partial discharge activity thereby increasing the reliability of the switchgear. The partial discharge system provides signal input to Smart-Gear® PDS self-monitoring network1 for local or remote monitoring.

Arc-flash detection AF1 Arc-flash detection system installed and factory

tested

Arc-flash detection uses protective relays to sense the occurrence of an arcing event inside the switchgear, and initiates tripping of all circuit breakers connected to the affected section of the switchgear. The system can also initiate tripping of remote power sources. The arc-flash detection system provides a signal input to Smart-Gear® PDS self-monitoring network for local or remote monitoring.

Table 8: Special application modules

Footnote:1. Self-monitoring network - all inputs into the

protective relays or optional HMI system for monitoring.


Special application modules are available as optional upgrades for Smart-Gear® PDS. These special application modules are designed to enhance the operability and improve the reliability and performance of the switchgear.

Table 8 describes the special application modules available with your Smart-Gear® PDS selection.

19

Protection functions and metering

Table 9: Protection functions and metering

ANSI Functions

Application

Main Tie Feeder

Main Tie Motor Distribution Transformer Capacitor

14 Locked rotor ----1 ----1 Standard ----1 ----1 ----1

21Distance

protection phase----1 ----1 ----1 ----1 ----1 ----1

21FL Fault locator Standard Standard ----1 Standard Standard Standard

24Overfluxing (V/Hz protection)

----1 ----1 ----1 ----1 ----1 ----1

25Synchronizing, synchronism

checkOptional2 Optional2 ----1 ----1 ----1 ----1

27 Undervoltage Standard Optional Standard Standard Standard Standard

32Directional

powerStandard Optional Standard Standard Standard Standard

32F Forward power Standard Optional Standard Standard Standard Standard

32R Reverse power Standard Optional Standard Standard Standard Standard

37Undercurrent or

underpowerStandard Optional Standard Standard Standard Standard

40 Loss of field ----1 ----1 ----1 ----1 ----1 ----1

46

Load unbalance, negative, phase-

sequence, overcurrent

Standard Optional Standard Standard Standard Standard

47Phase-sequence

voltageStandard Optional Standard Standard Standard Standard

48Motor starting

protection----1 ----1 Standard ----1 ----1 ----1

49 Thermal overload ----1 ----1 Standard ----1 ----1 ----1


With Smart-Gear® PDS, protection and metering functions are pre-defined based on the specific application of the circuit breaker and, because of this, the process of configuring circuit breakers is easy.

All protective relays used for each circuit breaker application module are equipped with the IEC 61850 communication protocol.

Table 9 describes the protection and metering functions that are standard or optional for each circuit breaker application module.

20

Table 9: Protection functions and metering (continued)


ANSI Functions

Application

Main Tie Feeder


49RRotor thermal


49SStator thermal


50Instantaneous

overcurrentStandard Optional Standard Standard Standard Standard

50NInstantaneous

ground overcurrent


50BFCircuit breaker

failureStandard Optional Standard Standard Standard Standard

50GNZero speed and

under speed----1 ----1 ----1 ----1 ----1 ----1

51Overcurrent time, phase


51NOvercurrent time, ground


51MLoad jam


51VOvercurrent time

relay, voltage controlled

----1 ----1 ----1 ----1 ----1 ----1

59Overvoltage protection


59NResidual voltage

ground faultStandard Optional Standard Standard Standard Standard

59GNStator ground

fault protection----1 ----1 ----1 ----1 ----1 ----1

64100% stator ground faul protection

----1 ----1 ----1 ----1 ----1 ----1

64RRotor ground

fault----1 ----1 ----1 ----1 ----1 ----1

67Directional overcurrent

Standard Optional ----2 Standard Standard Standard

67NDirectional

ground overcurrent


67GStator ground

directional overcurrent

----1 ----1 ----1 ----1 ----1 ----1

68Power swing

detectionStandard Optional ----1 ----1 ----1 ----1

74TCTrip circuit monitoring

Standard Optional Standard ----1 ----1 ----1

78Out-of-step protection

----1 ----1 ----1 ----1 ----1 ----1

21

ANSI Functions

Application

Main Tie Feeder


79 Auto-reclosure Standard Standard Standard ----1 ----1 ----1

81IO/UUnder-/over-

frequencyStandard ----1 ----1 ----1 ----1 ---1

81R

Rate-of-frequency-

change protection

Standard Optional Standard ----1 ----1 ---1

86 Lockout Standard Optional Standard ----1 ----1 ----1

87GDifferential protection generator

----1 ----1 ----1 ----1 ----1 ----1

87TDifferential protection

transformerOptional ----1 ----1 ----1 Optional ----1

87BDifferential

protection busOptional ----1 ----1 ----1 ----1 ----1

87MDifferential

protection motor----1 ----1 Optional ----1 ----1 ----1

87NDifferential protection

groundOptional ----1 Optional ----1 Optional Optional

Metering and other functions

Application

Main Tie Feeder


Energy metering values Wp, Wq

Standard Standard Standard Standard Standard Standard

Slave pointer Standard Standard Standard Standard Standard Standard

Eight oscillographic fault records


Service interface for Siemens DIGSI 4 (modem)



Table 9: Protection functions and metering (continued)

Footnotes:1. ----1 means this offering is not available.2. Standard for Smart-Gear® PDS type SG-64 and

not available for Smart-Gear® PDS type SG-80.

22

Communications and controls

Because IEC 61850 is the global standard for substation automation communication protocol, it is the standard communication protocol used for Smart-Gear® PDS. IEC 61850 communicates over TCP/IP networks and/or substation LANs using high-speed switched Ethernet (baud rate is 100 Mbps). It can be mapped to the most well-established protocols, including GOOSE or peer-to-peer messaging and Web services.

Since IEC 61850 is an open protocol that supports communication for monitoring, control and protection functions, it offers significant advantages for interfacing among circuit breakers within a lineup as well as other devices throughout the power distribution system.

All Siemens type SIPROTEC® protective relays used in Smart-Gear® PDS are equipped for IEC 61850 communications. The automatic transfer and circuit breaker interlock schemes described in system application modules beginning on page 10 are achieved through continuous function chart (CFC) programming, and initiated by the protective relays through IEC 61850 GOOSE messaging communication. This digital capability significantly reduces the number of control wires, especially interunit (wiring between sections) control wiring.

There are three communication and control application modules, including local control, remote-local control and remote control application. Each control and monitoring module is a building block for configuring an advanced communications network, in which the local control and monitoring are the foundation for all other control and monitoring modules.

23


Figure 7: Extended Smart-Gear® PDS network

MB

TB

MB

GOOSE messaging/peer-to-peer

IEC 61850

Redundant fiber-optic connectivity

Input/output connections

Smart-Gear® PDS network: local control and monitoring

Local control and monitoring is accomplished among the Siemens type SIPROTEC® protective relays within the Smart-Gear® PDS switchgear lineup. The protective relays are pre-programmed using Siemens DIGSI 4 software to meet the specific application requirements, including automatic transfer schemes and circuit breaker interlock schemes as described in system application modules on pages 10-12. For Smart-Gear® PDS, local operation and control (closing and opening) of the circuit breakers is accomplished through the protective relay circuit. All automatic transfer, circuit breaker interlocking and lockout functions are accomplished through protective relays within the local digital network.

The interface among circuit breakers is accomplished with CFC programming, IEC 61850, peer-to-peer/GOOSE messaging and fiber-optic connections. The input/ output between a protective relay and a circuit breakers is hard-wired.

Main-tie-main automatic transfer schemes are accomplished with GOOSE messaging and CFC programming, which is a more reliable and flexible approach to system automation.

Extended Smart-Gear® PDS network: local/remote communication and controls

Local/remote communication and controls are accomplished using IEC 61850 over dual fiber-optic connection. This system retains all of the functions and capabilities of the remote control application modules described on page 18 while enabling remote monitoring and control of the Smart-Gear® PDS switchgear lineup. Through the touch screen panel PC (HMI interface) or the type SIPROTEC® CBII controller, the operator has complete control of the lineup to remotely view the status and operate each circuit breaker. The touch screen panel PC or type SIPROTEC® CBII controller can be located remotely or close to the Smart-Gear® PDS switchgear lineup (refer to remote control application modules on page 18 for details on capabilities of the local HMI and type SIPROTEC® CBII controller).

Extended Smart-Gear® PDS network: interface with new and existing power management systems

Remote communication and controls with interface capability to new or existing systems is accomplished using IEC 61850 protocol. This system has all of the functions and capabilities as the local control and monitoring module, described on page 28, as well as the remote enhancement described above. This provides the ability to interface with existing systems, including SCADA and building management systems (BMS). Because the SICAM station unit used in this application supports a large number of established protocols, the self-monitoring data and control functions capability from the Smart-Gear® PDS local network is available to other systems, thus providing a seamless integration into existing networks.

24


Figure 8: Extended Smart-Gear® PDS network with local HMI

Figure 9: Extended Smart-Gear® PDS network with SIPROTEC® type CBII controller

MB

TB

MB


IEC 61850

Redundant fiber-optic connectivity Local remote control upgrade

HMI visualization system scalable for

low/high functionality

MB

TB

MB


Standard local controls

Local remote control upgrade

Type SIPROTEC® CBII controller



IEC 61850


Figure 10: Extended Smart-Gear® PDS network with SIPROTEC® type CBII controller

MB

TB

MB

Local remote control upgrade

SICAM controller interface with

existing system



IEC 61850




25

Service and support modules

Features and functionality Availability

Delivery module Optional

Programming and customization Optional

Dedicated project management Standard

Bench testing IEC 61850 technology lab Standard

Customer witness testing Optional

Training Optional

Field service and commissioning Optional

Table 10: Service and support modules

Delivery module

Apps Description

Standard cycle

SAStandard approval drawings are provided with this order process

(longest delivery cycle).

On-board approval drawings

OBACustomer approval drawings review

process conducted at the Siemens facility (shorter delivery cycle).

Certified cycle

CCustomer approval drawings review

waived. No approval drawings are provided (shortest delivery cycle).

Table 11: Approval drawing cycle modules


Several standard and optional service modules are available with Smart-Gear® PDS. This section provides a list of these service modules. Table 10 describes each service module designed to fit the specific needs and requirements of a project.

Approval drawing cycle modules

This module is structured to meet the specific delivery requirements of a project. Table 11 provides a list of the approval drawing cycle modules.

Programming and customization module

All of the automatic transfer application modules and circuit breaker interlock application modules (refer to page 10-12) are pre-programmed to perform specific functions. While most of the required functions are included for each transfer module, customization of the modules is also available. With Smart-Gear® PDS, the user has the flexibility to customize the protective relay programming to meet almost any special requirement. Any application module can be customized to meet specific needs simply by providing a detailed description of the modification to the automatic transfer and circuit breaker interlock application module.

Dedicated project management

For all Smart-Gear® PDS orders, dedicated project management will be assigned to manage the order from beginning to end. This provides the Smart-Gear® PDS customer a single point of contact for all technical, contract and production questions.

This single point of contact helps ensure that the customers receive fast and comprehensive responses to their questions.

26


Technical training

Siemens offers training to keep customers up-to-date on the latest technologies and changes in the power distribution industry. These training classes are tailored to the unique needs of each customer, and focus on application training for engineering, testing and operations personnel.

Protective relay training is available and is intended for protective relay engineers, designers and technicians from electric utilities and industrial firms wishing to gain a basic knowledge of the planning, commissioning and maintenance of system protection equipment.

Training is also available for Siemens DIGSI software and is intended for protective relay engineers, designers and technicians from electric utilities and industrial firms wishing to gain a basic knowledge of the planning, commissioning, maintenance and operation of Siemens type SIPROTEC® protective relays.

These courses employ a combination of lecture, demonstration and hands-on exercises.

Bench testing: IEC 61850 technology lab

All protective relays installed in a Smart-Gear® PDS switchgear lineup are programmed and bench tested in the Siemens IEC 61850 technology lab per specific test procedures before being shipped to the factory for installation in the switchgear and testing. The IEC 61850 technology lab is located at the Siemens facility in Wendell, North Carolina.

The IEC 61850 technology lab is specifically designed for the purpose of developing, evaluating and testing advanced protective relay and monitoring, control and protection configurations.

With Smart-Gear® PDS, a customer factory acceptance test (FAT) of the protective relay system is optional as part of the project.

Customer witness testing

This service module is specifically designed to give customers the option to witness the testing process of the equipment prior to shipment from the Siemens factory in Querétaro, Mexico. All customers will be accompanied by a Siemens contract administrator or a project engineer throughout the witness testing process. This service is coordinated through the project manager.

27


Field services

Support services are fully coordinated through our Wendell, North Carolina-based service organization. A toll-free customer service number and an after-hours emergency support number are established for prompt emergency help and response. These service lines provide access to resources that may be required to address the service needs or recommended operation and maintenance of the Smart-Gear® PDS switchgear lineup.

Smart-Gear® PDS field services

Installation and commissioning

On-call maintenance agreements

Technical field assistance.

Smart-Gear® PDS protection and control services

Switchgear protective relay testing

Generator system and protective relay testing.

Spare parts

A suggested spare parts list will be provided with the approval drawing package or several weeks after receipt of a purchase order for an Apps C (certified) project.

28

Instructions for specifying Smart-Gear® PDS

Figure 11: Layout of Smart-Gear® PDS specification formStep A: Smart-Gear® PDS switchgear lineup information block

Refer to Smart-Gear® PDS types on page 6, remote control application modules on page 18, special application modules on page 19, communications and controls on page 23 and service and support modules on page 26.

Step B: Ratings and enclosures block

Step C: Operation and functionality block

Refer to system application modules on page 10.

Step D: Sections and compartment requirements block

Each page consists of one vertical sections and two cells are shown.

Refer to, auxiliary application modules on page 13, circuit breaker application modules on page 14 and protection application modules on page 20.

Instructions for specifying a Smart-Gear® PDS switchgear lineup

With Smart-Gear® PDS, specifying medium-voltage, metal-clad switchgear is easy. All of the information preceeding this section has been designed to aid in completing the Smart-Gear® PDS specification beginning on page 32.

Layout of the Smart-Gear® PDS specification form

The following describes the layout of the Smart-Gear® PDS specification form. The form consists of four main data entry blocks that are described in Figure 11: Layout of Smart-Gear® PDS specification form.

Instructions for completing the Smart- Gear® PDS specification form

The step-by-step instructions below are provided to help in completing the Smart-Gear® PDS specification form. Each step refers to a block in Figure 11: Layout of Smart-Gear® PDS specification form.

Step A: Lineup information block

1. Complete the Smart-Gear® PDS switchgear lineup information block for each switchgear lineup, except for the lineup bus that must be completed for each bus in each switchgear lineup.

2. For selecting the Smart-Gear® PDS type, refer to Smart-Gear® PDS types on page 6 to determine the type of Smart-Gear® PDS needed.

3. To select the remote control application module, refer to Table 7: Remote control application modules on page 18 to review the options available and select the appropriate choice.

4. To select the special application module, refer to Table 8: Special application modules on page 19 to review the options available and select the appropriate choice.

5. To select a service module, refer to service and support modules on page 26 to review the options available and select the appropriate choice.

6. If desired, an electrically operated or manually operated Siemens ground and test device is available. Consult your local Siemens representative for more information.

29

Instructions for specifying Smart-Gear® PDS

Figure 12: Type GMSG-EO electrically operated ground and test device

Step B: Ratings and enclosure information block

1. Complete the information in the ratings and enclosure block for each switchgear lineup.


1. Complete the information in the operation and functionality block for the each switchgear lineup.

2. For an automatic transfer application module, refer to Table 2: Automatic transfer modules on page 10 to review the options available and select the appropriate choice.

3. For a protection application module, refer to Table 4: Protection application modules on page 12 to review the options available and select the appropriate choice.

4. Complete the control power data.

5. Complete the space heater entry as required.

Step D: Sections and compartments requirements block for a circuit breaker, auxiliary or blank cell

1. Complete the information in the sections and compartment requirements block for all circuit breaker and auxiliary compartments.

2. Each block represents a cell (compartment) as the upper or lower portion of a vertical section. Cell A represents the upper cell and cell B represents the lower cell in a vertical section.

3. Complete the compartment type.

Note: When selecting "equipped space," also select the applicable circuit breaker application module, which can be referenced in Table 6: Circuit breaker application modules on pages 15-17.

4. For an auxiliary application module, refer to Table 5: Auxiliary application modules on page 13 to review the options available and select the appropriate choice.

5. For the circuit breaker application module, refer to Table 6: Circuit breaker application modules on pages 15-17 to review the options available and select the appropriate choice.

6. For circuit breaker interlock application module, refer to Table 3: Circuit breaker interlock application modules on page 11 to review the options available and select the appropriate choice.

7. Note the location of the desired shipping splits. Do not locate shipping splits adjacent to bus-tie circuit breakers or between an auxiliary cell and a cell with a 3,000 A or 4,000 A circuit breaker compartment.

Smart-Gear® PDS specification form

1. Print the Smart-Gear® PDS specification form starting on page 32 and then complete the required entries.

2. Refer to the directions provided in the instructions for specifying Smart-Gear® PDS on pages 29 and 30.

3. Forward the completed form to your local Siemens representative for a proposal.

30

Definitions and terminology

Apps are software programs designed to be uploaded to the Smart-Gear® PDS switchgear lineup network.

Automatic transfer scheme is the system that enables automatic transfer of electrical power between one circuit breaker to another circuit breaker.

Application modules are the building blocks for configuring a lineup of switchgear.

Continuous function chart (CFC) programming is the diagrammatic language for the specification of mixed protective relays and other discrete continuous embedded systems. CFC permits the conversion of technological specifications into executable automation programs.

Control wiring is the copper wiring between secondary control devices.

DIGSI 4 is a Siemens tool for setting protective relays using MS Windows. DIGSI 4 is the logical innovation for easy-to-use and user-friendly setting, commissioning and operating of all SIPROTEC® protective relays, regardless of version.

Digital circuitry is the communication interface between intelligent electronic devices (IEDs).

Fiber-optic cable is flexible glass material used to transmit data.

GOOSE is the abbreviation for generic object-oriented substation events and is the high-speed data transmission that bypasses normal communication.

Hard-wired circuits are the copper wire interfaces among secondary devices.

IEC 61850 is a global standard for substation automation communication protocol and is open Ethernet-based.

Integrated controls is the combination of multiple functions into fewer devices.

Interlocking, circuit breaker interconnects two or more circuit breakers with control circuits to open or close (or to prevent closing) depending on the application requirements.

Interlocked, digital connects two or more circuit breakers via IEDs to open or close (or to prevent closing) depending on the application requirements.

Interoperability is the ability of equipment to easily interface with other equipment supplied by different manufacturers.

Programmable means equipment can be programmed to function.

Restore, automatic is the automatic return to the preferred power source from the non-preferred source.

Restore, manual is the manual return to the preferred power source from the non-preferred source.

Scalability is the ability of a system to handle additional hardware and functions with little impact on performance.

Self-monitoring is the capability of the equipment to monitor its own functionality and advise (alert) the operator.

Source, non-preferred is secondary or an alternate power source.

Source, preferred is the primary or normal power source.

Transition, closed is the closing of a circuit breaker prior to transferring of power, typically the tie circuit breaker in a main-tie-main breaker configuration.

Transition, open is the opening of a circuit breaker prior to transferring of power, typically the tie circuit breaker in a main-tie-main circuit breaker configuration.

Usage-based maintenance is the advanced notification the equipment provides to the user of recommended maintenance based on time and/or operations.

31

Answers for energy.

Smart-Gear® power distribution solution specification form

Step A: Smart-Gear® PDS switchgear lineup information block

Smart-Gear® PDS type (refer to page 6)

SG-64 SG-80

Special application modules (refer to page 19)

PD1 AF1

Remote control application modules (refer to page 18)

CB11 HMI PAS None

Surge arresters

Incoming only All main and feeder circuit breakers None

Intermediate class Distribution class Station class

Ground and test devices (refer to page 30)

Electrically operated upper stud Electrically operated lower stud

Manually operated None

Approval drawing cycle module (refer to page 26)

SA OBA C

Customer witness testing (refer to page 27)

Yes No

Field services (refer to page 28)

Installation and commissioning On-call maintenance agreement

Technical field assistance None

Smart-Gear® PDS protection and control services (refer to page 28)

Switchgear protective relay testing None

Generator system and protective relay testing

Technical training (refer to page 27)

Power distribution technology Protective relay None

Smart-Gear® power distribution solution (PDS) specification form

32

Non-arc-resistant, type GM-SG (refer to page 6)

Bus rating

1,200 2,000 3,000 4,000

CT accuracy

Standard accuracy, type MD High accuracy, type MDD

Enclosure

Indoor Outdoor walk-in Outdoor non-walk-in

Ratings

4.76 kV 40 kA 4.76 kV 50 kA 4.76 kV 63 kA 8.25 kV 40 kA 15 kV 25 kA 15 kV 40 kA

15 kV 50 kA 15 kV 63 kA

Arc-resistant, type GM-SG-AR (refer to page 6)

Bus rating

1,200 2,000 3,000 4,000

CT accuracy

Standard accuracy, type MD High accuracy, type MDD

Enclosure

Indoor Outdoor walk-in

Ratings

4.76 kV 40 kA 4.76 kV 50 kA 4.76 kV 63 kA 8.25 kV 40 kA 15 kV 25 kA 15 kV 40 kA

15 kV 50 kA

Non-arc-resistant, type GM38 (refer to page 6)

Bus rating

1,200 2,000 3,000

CT accuracy

Standard accuracy, type MD38 High accuracy, type MDD38

Enclosure

Indoor Outdoor walk-in Outdoor non-walk-in

Ratings

38 kV 31.5 kA 38 kV 40 kA

Step B: Ratings and enclosure information block


33



Automatic transfer application modules - main-tie-main (refer to page 10)

AT1-1 AT1-2 AT1-3 AT1-4 AT1-5 AT1-6

Automatic transfer application modules - main-main (refer to page 10)

AT3-1 AT3-2 AT3-3 AT3-4 AT3-5 AT3-6

Automatic transfer application modules (refer to page 10)

None/manually operated

Protection application modules (refer to page 12)

87B ZSI None

Space heaters

Required None

Control power - circuit breaker power

Supplied by customer

Supplied by switchgear supplier Batteries - lead acid1 Batteries - NiCad1

48 Vdc 125 Vdc

Control power - auxiliary power

Supplied by customer Supplied by switchgear 120 Vac 230 Vac

Footnote:1. Batteries provided for installation separate

from switchgear and not installed in switchgear sections.

34

Step D: Sections and compartment requirements block - Section 1

Compartment A - upper cell

Compartment type (refer to pages 14-17)

Auxiliary CB1 EQP FUT Blank

Auxiliary application modules2 (refer to page 13)

LVT BVT LCPT BCPT

Circuit breaker application modules3 (refer to pages 14-17)

MB1 TB1 DFB1 MFB1 TFB1

CB1

Transformer differential module if TFB1 is chosen (refer to page 16)

87T-2W 87T-3W None

Number of RTDs if MFB1 and TFB1 application modules are chosen

0 5 12

Circuit breaker A

1,200 2,000 3,000 (available for types GM-SG and GM-SG-AR only)

Circuit breaker termination

Cable Bus duct Top exit Bottom exit

Circuit breaker interlock application modules - local (refer to pages 11-12)

BI1 BI2 BI3 LSS LSC

Circuit breaker interlock application modules - remote (refer to pages 11-12)

RBI1 RBI2 RBI3

Compartment B - lower cell




LVT BVT LCPT BCPT


MB1 TB1 DFB1 TFB1 MFB1

CFB1

Transformer differential module TFB1 is chosen (refer to page 16)

87T-2W 87T-3W None


0 6 12

Circuit breaker A5

1,200 2,000 3,000 (maximum rating fan-cooled for type GM38)

4,000 (fan-cooled) for types GM-SG and GM-SG-AR)


Cable Bus duct Top exit Bottom exit None (bus tie)


BI1 BI2 BI3 LSS LSC


RBI1 RBI2 RBI3

Footnotes:1. Circuit breaker.2. Not available if Cell B

is 3,000 A or 4,000 A for types GM-SG and GM-SG-AR. or if Cell B is 3,000 A for type GM38. Maximum two devices per cell for 1,200 A and 2,000 A.

3. Not available if an auxiliary application module is selected.

4. Maximum two devices per cell. If cell A is 3,000 A, maximum one per cell.

5. 3,000 A and 4,000 A are not available A for types GM-SG or GM-SG-AR. and 3,000 A is not available for type GM38 if an auxiliary application module is selected.


Lineup bus

A B

C D

35







LVT BVT LCPT BCPT



CB1


87T-2W 87T-3W None


0 5 12

Circuit breaker A





BI1 BI2 BI3 LSS LSC


RBI1 RBI2 RBI3





LVT BVT LCPT BCPT



CFB1


87T-2W 87T-3W None


0 6 12

Circuit breaker A5






BI1 BI2 BI3 LSS LSC


RBI1 RBI2 RBI3

36



Shipping split between

sections 2 and 3

Yes No





LVT BVT LCPT BCPT



CB1


87T-2W 87T-3W None


0 5 12

Circuit breaker A





BI1 BI2 BI3 LSS LSC


RBI1 RBI2 RBI3





LVT BVT LCPT BCPT



CFB1


87T-2W 87T-3W None


0 6 12

Circuit breaker A5






BI1 BI2 BI3 LSS LSC


RBI1 RBI2 RBI3

37




sections 3 and 4

Yes No





LVT BVT LCPT BCPT



CB1


87T-2W 87T-3W None


0 5 12

Circuit breaker A





BI1 BI2 BI3 LSS LSC


RBI1 RBI2 RBI3





LVT BVT LCPT BCPT



CFB1


87T-2W 87T-3W None


0 6 12

Circuit breaker A5






BI1 BI2 BI3 LSS LSC


RBI1 RBI2 RBI3

38




sections 4 and 5

Yes No





LVT BVT LCPT BCPT



CB1


87T-2W 87T-3W None


0 5 12

Circuit breaker A





BI1 BI2 BI3 LSS LSC


RBI1 RBI2 RBI3





LVT BVT LCPT BCPT



CFB1


87T-2W 87T-3W None


0 6 12

Circuit breaker A5






BI1 BI2 BI3 LSS LSC


RBI1 RBI2 RBI3

39

www.usa.siemens.com/energy

Published by and copyright © 2011:Siemens AGEnergy SectorFreyeslebenstrasse 191058 Erlangen, Germany

Siemens Energy, Inc.7000 Siemens RoadWendell, North Carolina 27591 USA

For more information, contact +1 (800) 347-6659

Order No. E50001-F710-A123-V1-4A00Printed in USA

All rights reserved. Trademarks mentioned in this document are the property of Siemens AG, its affiliates or their respective owners.

Subject to change without prior notice. The information in this document contains general descriptions of the technical options available, which may not apply in all cases. The required technical options should therefore be specified in the contract.

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