emerson's power solution to aai 19-dec-11

Session on Power Solution for AAISession on Power Solution Session on Power Solution for AAIfor AAI

Vikas Mishra

Date: 19-Dec-2011

We welcome AAI Officials to the Session

PreviewPreview� About Emerson

� Power Solution requirements

� SLD of Ideal Power Solutions

� Emerson’s Product Portfolio

� ATS

� TVSS

� UPS Systems

� Precision Air Conditioner

� Remote Monitoring

� Battery Chargers & DC Systems

Emerson: Creating Technology & Solutions For A World In ActionEmerson: Creating Technology & Solutions For A World In Action

� FY2011 Sales of $21 B

� We are one of The Fortune 500 Companies

� Founded in 1890

� Record of consistent long-term performance

� Global product/market leadership

� Recognized outstanding management process

� Strong global presence

� Solid financial position

� Over 108,000 employees and 245 worldwide plants

Emerson Network Power IndiaEmerson Network Power India

� Established in 1993 and formerly known as Tata-Liebert till 2001

� H.O. and R&D Center at Thane, Maharashtra

� ISO14001 and ISO-9001:2000 certified company

� Dedicated Team for tailored “Business-Critical Continuity” Solutions in:

� Infrastructure Vertical

� IT/ITES Vertical

� Telecom Vertical

� BFSI Vertical

� Government Vertical

Emerson India : ReachEmerson India : Reach

MUMBAI

PUNE

BANGALORE CHENNAI

COCHIN

SECUNDERABAD

BHUBANESHWARNAGPUR

INDOREBARODA

AHMEDABAD

JAMSHEDPUR

KOLKATA

GUWAHATI

LUCKNOW

NEW DELHI

CHANDIGARH

COIMBATORE

VIZAG

� 29 Branch Offices for sales & service divided in 4 zones

� 55 Business Partners across the country

� More than 1500 VARs / SIs across the country

� National Distributor –INGRAM MICRO

� Offices in Sri Lanka & Bangladesh

Power Solution requirementsPower Solution requirements� Higher Reliability

� Higher Availability

� Avoid potential failures

� Automatic recovery from critical failures

� Faster repair time

� Easy Manageability

� UPS management over the network (Remote UPS monitoring)

Power Solution with PRS Architecture for Critical Load, Option -1

Rectifier cum

ChargerInverter

Static

Switches

(Battery

Bank -1

1+1 // Card

Static Bypass

Maintenance Bypass

Rectifier cum

ChargerInverter Static

Switches

Static Bypass

Maintenance Bypass

Output ACDB

UPS- 2

1+1 // Card

SCVS

BCB-1

ATS

Input

TransformerPanel

UPS- 1

Spare

TVSS

TVSS

Battery

Bank -2

(BCB -2

TVSS

TVSS

3 Phase, 415 Vac,

4 Wire Paralleled

Output from

UPS-1 & 2

Power Solution with Dual Bus Architecture for Critical Load, Option- 2

Rectifier cum

ChargerInverter

Static

Switches

(Battery

Bank -1

LBS Card

Static Bypass

Maintenance Bypass

Rectifier cum

ChargerInverter Static

Switches

Static Bypass

Maintenance Bypass

Output ACDB

UPS- 2

LBS Card

SCVS

BCB-1

ATS

Input

TransformerPanel

UPS- 1

Spare

Output ACDB

Static Switch

Load

TVSS

TVSS

Battery

Bank -2

(BCB -2

Emerson’s Product PortfolioEmerson’s Product Portfolio� Automatic Transfer Switches (ATS)- ATS transfers the critical load to emergency sources reliably in the event of failure of utility power;

Features include neutral overlapping, repeatedly fast transfer operation, Microprocessor based control panel, Serial communication capability etc; Range: 30 - 4000A

� TVSS (Transient Voltage Surge Suppressior) - Offers Power Sure Panel Low & Medium exposure surge suppression systems; Features include compact; Repeatable surge current capability; monitors the status of all protection modes, including neutral to ground; easy, safe & maintenance free operation; Response time less than 0.5 ns; Available in 25kA, 50kA, 100kA & 160kA surge current capacities;

� UPS Systems (UPS) - Range: 600VA to 4800 KVA; State of the art Technology UPS Systems protecting the critical equipments from blackouts and brownouts.

� Precision Air Conditioners (PAC) - A complete line of high capacity precision air conditioning systems, from 6 to 60 tons, protects areas housing critical equipment with precise, reliable control of temperature, humidity and airflow. Floor mounted, Wall/Ceiling mounted, Rack mounted, Extreme density systems, Heat rejection & air conditioners for equipment rooms are available

� DC Power Systems - A complete line of DC power systems have been designed for modularity and easy servicing for the needs of DC dependent Telecommunication equipment (Network Access equipment, Transmission equipment, BTS, MSC, BSC, Microwave Communication equipment, Surface station of Satellite Communication); Range: (5A - 6600A) @ 48V . Also 110 V DC Power systems for Industrial applications.

� Static Transfer Switches (STS) - The STS is a solid-state, three-pole, dual-position transfer switch designed to automatically and manually switch between two synchronized three-phase AC power sources without an interruption of power to the load; Sensing and transfer time 4-6 ms; Types include Static Switch (6 kVA); Static Transfer Switch - 3-ph, (100-1000A);

� Power Distribution Units (PDU) - PDUs are designed to efficiently deliver conditioned power from UPS to Critical loads. Features include monitoring, grounding, expansion capabilities & custom distribution; Types include Precision Power Center (Available with Isolation Transformer, in 3-ph, 15 -225 kVA systems, upto 4 Panels each 42 poles); Remote Distribution Center (3-ph, 4-wire-plus-ground, 225A, 168 poles); Free standing rack distribution unit (3-ph, 4-wire-plus-ground, 225A, 168 Poles); Power Distribution units are also available with Static Transfer Switches

� Site Scan ,Web - Site Monitoring Solutions : Web- Based Site monitoring, Alarm Management and Trending/Analysis for critical sites; Shows exactly where is the problem, monitors virtually any piece of critical equipment located in next room/in a facility on other side of the country; oversees multiple facilities located thousand miles apart; Ability to interface with Building Management System/other facility supervisory equipment; Can be tailored to the specific requirements of critical support infrastructure; Applications: Computer rooms, Telecommunication centers, Industrial process control facilities, locations housing sensitive electronic equipment

� Battery Monitoring Solutions - Battery Monitoring solutions help in preventing battery failure, extending battery life, reducing maintenance cost & increasing safety; Features - checks the health status of each cell by proactive DC resistance test, scans pertinent battery parameters for every 4 sec; Trend Analysis; Remote notification; Types include BDS - 40(Designed for 12V sealed batteries; monitors upto 32 cells); BDS -256(Supports 2V, 4V, 6V, 8V & 12V modules; NiCd cells; Monitors 256Cells);

� Racks & Enclosure systems - Product range: Network racks, Server Racks, 19"racks/enclosures, Outdoor cabinets, Street cabinets, Wall case - wall mounted enclosures, 10"/19" wall mounted enclosures; Water cooled server racks up to 35kW; MaxLoad seisimic racks & Heavy load racks; ETS racks; Applications: IT & Telecommunications

� Data Center Solution - Emerson provides total turnkey Data Center solution for the passive infrastructure with Adaptive architecture which provides modularity, scalability and optimum total cost of ownership .

� Avocent solution - For Data Center Infrastructure management- This covers servers, networking applications, telecom gears from a single console including power management at individual asset level.

� Active Harmonic Filters

� Power Quality Audits

Overview of Emerson Products for You Overview of Emerson Products for You

AutomaticTransferSwitch

Generator

InboundPower

UtilityAC

DC Power Systems

TVSSDC Power System DC Power Interface

AC Power Systems

TVSSUPS PPC / PDU

OEM Embedded

Services- Maintenance

- Power Quality Audits

Racks

Precision Air

Conditioning SystemsTVSS

RACKS

Comprehensive Site Monitoring

ACTIVE FILTERSSTS

Commonly Used Transfer Switching MethodsCommonly Used Transfer Switching Methods

� Interlocking of Magnetic Contactors

(IEC 60947-4)

� Interlocking of Circuit Breakers

(IEC 60947-2)

� Switch Disconnectors or Changeovers

(IEC 60947-3)

Their Technical LimitationsTheir Technical Limitations

� Electrically Interlocked Magnetic Contactors

AC hum

Limited to approximately 600 amps

Continuous power consumption

� Interlocked Circuit Breakers

No AC hum

Not designed for repetitive switching

Contacts designed to open under overcurrents

Contacts not easily serviced

Automatic Transfer Switch (ATS)Automatic Transfer Switch (ATS)Automatic Transfer Switch (ATS)

� UL-1008 : 1.4 : “a transfer switch as covered by these requirements is a device that automatically transfers a common load from a Normal Supply to an Alternate Supply in the event of failure of the the normal supply and automatically returns the load to the normal supply when the normal supply is restored.”

� IEEE, NEMA ICS : “An automatic transfer switch is self acting equipment for transferring one or more load conductor connections from one power source to another.”

Automatic Transfer Switch (ATS)Automatic Transfer Switch (ATS)Automatic Transfer Switch (ATS)

A device which transfers electrical loads between two sources of power by using automatic controls.

Seven Functions of ATSSeven Functions of ATS

� Carries current continuously

� Withstands fault currents

� Detects power failures

� Initiates alternate source

� Transfers load

� Senses restoration of Normal

� Re-transfers load

ATS - Design CriteriaATS - Design Criteria

Single Solenoid Operator

� Simple and reliable

� True double-throw design

� Inherently interlocked

� Speed of operation

Single-Solenoid Operator – Normal PositionSingle-Solenoid Operator – Normal Position

Single-Solenoid Operator – Transferring Single-Solenoid Operator – Transferring

Single-Solenoid Operator – Emergency Supply Single-Solenoid Operator – Emergency Supply

Transfer Switch - FeaturesTransfer Switch - Features

� No Overheating

� True double-throw operation

� Wide Arc gaps

� Protection of main contacts

� Handle currents dependably beyond listed rating.

� Fastest operation

� Operates continuously on Either source

� Operator powered by the live source

� Neutral switching with overlapping contacts

� Inphase monitor for transfer of motor loads

Transfer Switch – available RATINGSTransfer Switch – available RATINGS

� Must be capable of carrying its rated current.

� 24 hrs. a day and 7 days a week

� No overheating

30 / 70 / 100

150 / 200

260 / 400

600 / 800

1000 / 1200

1600 / 2000

3000

4000

Automatic Transfer SwitchAutomatic Transfer Switch

� Complies with IEC-947-6-1

� CE Marked

� UL 1008 listed for total system loads

� Meets National Electric Code requirement

� Kema Keur Marked



Generator

InboundPower

UtilityAC

DC Power Systems


AC Power Systems

TVSSUPS PPC / PDU

OEM Embedded



Racks

Precision Air


RACKS


ACTIVE FILTERSSTS

BLACKOUTS

BLACKOUTS

HA

RM

ON

ICS

HA

RM

ON

ICS

SU

RG

ES

SU

RG

ES

LIGHTNING

LIGHTNING

EARTHINGEARTHING

SYSTEMSSYSTEMS

LINELINE

NOISENOISE

WIRINGWIRING

METHODSMETHODS

EMI

EMIR

FIR

FI

TE

LC

O

TE

LC

O

LIN

ES

LIN

ES

NE

TW

OR

KS

NE

TW

OR

KS

POPO

WE

R

WE

R Q

UA

LIT

Y

QU

AL

ITY

TH

ET

HE

BIG

BIG

PU

ZZ

LE

PU

ZZ

LE

Power Quality ProblemsPower Quality Problems

Voltage

Voltage

Fluctuations

Fluctuations

TRANSIENTSTRANSIENTS

Transients are (typically a few milliseconds duration)

SURGE

SURGENOISE

SURGE- LARGE AMPLITUDE VOLTAGE / CURRENT PROBLEM > 2x nominal Vp

EFFECT- HARDWARE DAMAGESOLUTION- TVSS WITH FILTERING ( LIFE INSURANCE)

NOISE - SMALL AMPLITUDE FAST RISE VOLTAGE PROBLEM < 2 x nominal VpEFFECT- SOFTWARE / HARDWARE ERRORS, SYSTEM LOCK-UP SOLUTION- FILTERING SYSTEMS OF CAPACITORS ARE GOOD

CAPACITORS & INDUCTORS ARE BETTER ( HEALTH INSURANCE )

TRANSIENT SOURCESTRANSIENT SOURCESêê Lightning StrikesLightning Strikes

êê Utility Line Work / System FaultsUtility Line Work / System Faults

êê MotorsMotors

êê Arc WeldersArc Welders

êê SwitchesSwitches

êê Power Factor Correction Power Factor Correction Capacitors ICapacitors Isurgesurge

E = I x R + L di/dt E = I x R + L di/dt

switch time switch time

STATISTICS ON POWER PROBLEMSSTATISTICS ON POWER PROBLEMS

IEEE Report “Impact of Utility Distribution Systems on Power Line Disturbance” 1976 GW-Allen and Seagall.

According to prominent IEEE report, 88.5% of all external

and internal power disturbances are Transients, Spikes and Noise.

Transient Voltageand noise

48.5%

Voltages Spikes40%

Under voltage, Under voltage,

Over voltage, Over voltage,

outages and others 21.5%outages and others 21.5%

IEEE STD 1100IEEE STD 1100-- EMERALD BOOKEMERALD BOOK

SECTION 8.4.2.5 SURGE PROTECTIVE DEVICES

Recommended practice is that surge protective devices (TVSS)

be applied to service entrance electrical switchboards and panelboards,

and panelboards on the secondary of separately derived systems

that support information technology equipment (ITE),

telephone, telecommunications,signaling,television

and other forms of electronic load equipment.

IEEE STD 1100IEEE STD 1100--1992 EMERALD BOOK1992 EMERALD BOOK

SECTION 9.11.3 UPS Surge Protection“Lightning and other transient voltage producing phenomena are

harmful to most UPS equipment and to sensitive electronic load

equipment (e.g., via an unprotected static-switch bypass path

around a UPS). Therefore, it is recommended practice that both

the rectifier-charger input circuit to the UPS and the associated

UPS bypass circuits ( including the manual maintenance bypass

circuit ) be equipped with effective Category “B” TVSS protection

as specified in IEEE Std. C62.41-1991.

The required protection should be attached in both the line-to-line

and line-to-ground modes. Low - inductance connections should

be employed for this protection. TVSS devices should be connected

to the available equipment grounding conductors, not to isolated

grounding conductors.”

IEEE Recommended TVSS Selection and all Mode ProtectionIEEE Recommended TVSS Selection and all Mode ProtectionIEEE

Std 1100-1999 CHAPTER 8

8.6.1 Selection

The selection of surge protective devices typically depends on the location of the device. The

surge protective devices are recommended to be sized per IEEE Std C62.41-1991 and IEEE

Std C62.45-1992 requirements to achieve proper coordination. Surge protective devices

should be listed to UL 1449-1996. Surge protective devices used for three-phase, four-wire

circuits are generally recommended to be connected in all combinations of line-to-line, line

to-neutral, line-to-ground, and neutral-to-ground. Surge protective devices for three-phase,

three-wire circuits are recommended to be attached in both the line-to-line and line-to-ground

modes. Surge protective devices may also be specified with high-frequency filtering

characteristics.

REQUIREMENTS OF SUPPRESSION REQUIREMENTS OF SUPPRESSION

EVALUATIONEVALUATION

uu VOLTAGE PROTECTION LEVEL <1000VpVOLTAGE PROTECTION LEVEL <1000Vp

uu LISTED WITH UL 1449LISTED WITH UL 1449--3 / CE / CUL 3 / CE / CUL

uu ALL MODE PROTECTION (LALL MODE PROTECTION (L--L/LL/L--N/LN/L--G/NG/N--G)G)

uu TESTING & MONITORING (LED / DRY Contacts)TESTING & MONITORING (LED / DRY Contacts)

uu RESPONSE TIME < 0.5nSRESPONSE TIME < 0.5nS

uu NOISE FILTERING NOISE FILTERING –– EMI/RFI EMI/RFI –– 40dB40dB

uu SAFE COORDINATED FUSINGSAFE COORDINATED FUSING

uu SERVICE AND SUPPORT SERVICE AND SUPPORT

uu VERIFIED SURGE CURRENT PROTECTIONVERIFIED SURGE CURRENT PROTECTION

ONE TIME / MULTIPLE TIMESONE TIME / MULTIPLE TIMES

Interceptor II LM Series

PowerSure AccuGuide

Accuvar

Liebert – TVSS ProductsLiebert – TVSS Products

DRS-SPD

Liebert PowerSureLiebert PowerSureLiebert PowerSure

• Ideal for Distribution & Sub Dist Board

• Surge Rating Capacity:

25kA, 50kA, 100KA per phase

• Fault Current Rating: 22 kAIC

• MCOV: 320VAC

• Response Time: < 0.5 nanoseconds

• EMI/RFI Attenuation: 40dB

• Standard Indication: LED, form C contacts

• Certifications: UL 1449-3, CUL

• Standard enclosure: ABS Plastic

• Standard LEDS indication, form C contacts

• Coordinated Silver Link Fusing with

individual MOV

Powersure - Low Exposure - LPL

Powersure - Medium Exposure - LPM

• Ideal protection for Distribution Boards

• Surge Rating Capacity:

100kA & 160kA per phase

• Fault Current Rating: 65 kAIC

• MCOV: 320VAC

• Response Time: < 0.5 nanoseconds

• EMI/RFI Attenuation: 40dB

• All Mode Protection: (L-L, L-N, L-G, N-G)

• Certifications: UL 1449-3, CUL

• Standard Enclosure: NEMA 12

• Standard indication:

LEDS, form C contacts & Audible Alarm

• Coordinated Silver Link Fusing with

individual MOV

� Ideal protection at Service Entrances (MDB)

� Surge Current Capacity:

160 kA to 1000 kA per phase

� Fault Current Rating: 200KAIC

� MCOV: 320VAC

� Response Time: < 0.5 nanoseconds

� EMI/RFI Attenuation: 60dB

� All Mode Protection: (L-L, L-N, L-G, N-G)

� Listed with UL 1449-3, UL 1283

� Complete NEMA LS 1 testing

� Standard Enclosure: NEMA 4

� Standard LEDS indication, form C contacts and Audible Alarm

� Coordinated Silver Link Fusing

� Optional: Rotary Disconnect, Surge Counters

� Built-In Testing- By pressing a push button to monitor each MOV/fuse link status

Interceptor IIInterceptor II-- High ExposureHigh Exposure

IEEE EMERALD BOOKIEEE EMERALD BOOK

Section 9.11.4

“Data (e.g.,control,data I/O cables,and other communication or signaling) that are metallic (not fiber optic) should also be equipped with suitable

surge protector devices.”

“Surge protectors should be placed on both ends of data cables for optimum effect.”

Main Dist.

Board3-Phase 415 VAC

Distribution Board

Sub Dist. Board

415VAC/ 230VAC

230VAC

LM,250kA/Phase Accuvar,160kA/Phase LPL,100kA/Phase

TV

SS

TV

SS

TV

SS

TVSS Installation at Electrical Panels(Standard Protection Solution)TVSS Installation at Electrical Panels(Standard Protection Solution)



Generator

InboundPower

UtilityAC

DC Power Systems


AC Power Systems

TVSSUPS PPC / PDU

OEM Embedded



Racks

Precision Air


RACKS


ACTIVE FILTERSSTS

Uninterruptible Power Supply (UPS)Uninterruptible Power Supply (UPS)

• Micro UPS (0~3kVA) for desktops, servers, telecom closets

• Small UPS (3~20kVA) with completely redundant system controls, power modules, battery modules and monitoring options

• Medium UPS (30~100kVA) with smaller footprint, higher efficiency and superior performance

� Large UPS (>100kVA) with continuous availability

–Dual-UPS Systems in Parallel

• Micro UPS (0~3kVA) for desktops, servers, telecom closets

• Small UPS (3~20kVA) with completely redundant system controls, power modules, battery modules and monitoring options

• Medium UPS (30~100kVA) with smaller footprint, higher efficiency and superior performance

� Large UPS (>100kVA) with continuous availability

–Dual-UPS Systems in Parallel

Medium UPS

Micro UPS Small UPS

Large UPS

Micro & Small UPS Product BasketMicro & Small UPS Product Basket

Range : 600VA to 20KVA

1KVA to 6KVA

10 & 20 KVA

6KVA

10KVA/20KVA

GXT – MT + and Adapt SeriesGXT – MT + and Adapt SeriesProduct Range

� GXT – MT + Series -1KVA / 2KVA / 3KVA

� Adapt Series – 6 KVA / 10 KVA / 20 KVA

� True ONLINE double Conversion Technology.

� Option of Using as Rack mountable Cum Tower Mountable

Key FeaturesKey Features

� Online VFI technology with Sinewave Output.

� Power Factor Corrected Input >0.9

� Cold Start on Batteries

� Internal Static and Mannual Bypass

� Handles all Potential Power Problems i.e Spikes, Transient, EMI/RFI, Harmonics etc

� Wide Input Voltage Window

119V to 280V up to 3KVA

176V to 276V for 6KVA

� Wide Input Frequency Range

40Hz to 70Hz ( Auto Sensing )

Other Features / Options Other Features / Options

� Remote monitoring through SNMP.

� Advanced Early Warning Shutdown through Multilink Software

� USB Port

� User configurable Settings ,Voltage & Frequency.

� Automatic Battery Test Feature Enable/Disable

� Flexibility of operation ( UPS or CVCF)

FEATURES OF S400DFEATURES OF S400D

Input Unity Power Factor Rectifier.

IGBT Based Rectifier and Inverter.

Input current distortion < 5%.

Parallel Redundant UPS.

Wide Input Voltage Variation of +15%, -25%.

Wide Input Frequency Variation of +/-10%.

Each UPS can support a Battery Backup of 1 Hours duration without the Need of Additional Charger.

Black start facility at full load as standard.

Battery test facility.

Black start disable facility if battery in fully discharged condition.

Inverter output short circuit protected.

Rectifier output short circuit protected.

Reverse Phase sequence operation.

Auto retransfer facility.

Adjustable synchronisation band from

+/-1 Hz to +/- 3 Hz in the steps of 1Hz.

FEATURES OF S400DFEATURES OF S400D (Contd.)

Liebert SX Liebert SX Powering real time businessPowering real time business

Salient featuresSalient featuresSalient features-High efficiency up to 94% in dual conversion mode-up to 98% in DIM mode

THDi<3%Clean grid

I/p PF >.99

No De-ration through entire load PF range

Automatic power adjustment on operating temperature

Maximum power availabilitykVA=kW

Full galvanic isolation as built in option

Rating available(kVA) : 66,88,110,132,176,220

Full compatibility with all type of load Full compatibility with all type of load Full compatibility with all type of load

Full compatibility with all types of loads

with PF up to 1 without de-rating

Fully compliant with leading power

factor loads

UPS do not require de-rating for

leading power factors and can be

connected to any load within the

nominal kVA and kW rating of the UPS

regardless of power factor.

�

�

�

Enhanced power qualityEnhanced power qualityEnhanced power quality

Improvement of short circuit behaviour, as individual phases can be

controlled more quickly

Synchronisation or phase angle precision between UPS output and

bypass supply even in the case of a distorted mains voltage

High flexibility in parallel operation

Advantages

�

�

�

Vector control technology

The performance of the converter is enhanced

A quick and flexible processing of data in DSP

Rapidly generating variable as a result

This allows a real time control of the UPS electronics

�

�

�

�

ABC : Battery Life Maximized up to 50%ABC : Battery Life Maximized up to 50%

1. Temperature compensated battery charger operation

2. Low ripple current

3. Time compensated end of discharge voltage

4. Wide input voltage range

5. Battery temperature monitoring

Cost Saving: Extended Battery LIFECost Saving: Extended Battery LIFE

• The parallel control is integrated in the renewed hardware architecture.

• No tests are required to convert a single unit into a parallel unit.

• A UPS can be paralleled within 10 minutes and only one communication cable is required.

Up to 8 units in parallel

Each UPS includes a bypass line

Modular parallel configurationModular parallel configuration

Parallel ready UPS-Plug and Play solution

Full Galvanic isolation (optional)*Full Galvanic isolation Full Galvanic isolation (optional)*(optional)*

Flexible DC bus Voltage Flexible DC bus Voltage Flexible DC bus Voltage

• Battery Compatibility

VRLA /Wet –acid / Ni-cd

• Flexib;ity in battery blocks

40 -50 12V monoblocks (240 cells to 300 cells )- 2V cells

Connectivity optionsConnectivity optionsConnectivity options



Generator

InboundPower

UtilityAC

DC Power Systems


AC Power Systems

TVSSUPS PPC / PDU

OEM Embedded



Racks

Precision Air


RACKS


ACTIVE FILTERSSTS

What is High Performance Air-conditioningWhat is High Performance Air-conditioning

HPAC systems are primarily designed for

– Cooling electronic / electrical equipment, rather than people.

– These pre-packaged systems offer excellent reliability.

– Typically have a high ratio of sensible-to-total cooling capacity and a high CFM/ton ratio.

2424ooCC

2727ooCC 2222ooCC 2424ooCC

2323ooCC

Office Technology room

2121ooCC

35%

50%

65% 45% 55%

50%

Temperature and RH RequirementsTemperature and RH Requirements

Defining today's Technology RoomDefining today's Technology Room

� Not just merely Computer / Server Rooms

� Encompasses

– Signalling Control Room

– Telicom Equipment Rooms

– Substation Control Rooms

– Server rooms / Data Centers

Server Room

Data Centre

Laboratories

Telecom Equipment room

VFD Room

Clean Room

MRI CAT scan

Signaling & sub station Control Room

Precision A.C

Application areas of Precision A.C.Application areas of Precision A.C.

Item Description HPAC Comfort Split/Window AC’s

Type of Mounting Wall / Floor Wall/Floor

Type of Discharge Room Room

Sensible Heat Ratio 0.9 - 1 0.6 – 065

Air Quantity 600 to 650 Cfm/TR 300-375 Cfm/TR

Duty Cycle Designed for 24X7X365 Hrs. Operation

Designed for 8X7X365 Hrs. Operation

Average Life Min.- 10 Years for 24Hrs. Operation

Max. life- 3 Years for 24Hrs. Operation

Body Construction Rigid (CRCA Powder-Coated Riveted Design

(Rugged Design)

CRCA Powder-Coated Screwed Unit ( 2.5TR) & Plastic Body Type

(1.5TR)

Running Cost (at nominal capacity Conditions)

1.05KW/TR 1.2KW/TR

Clubbing with Fire detection system

Possible No

Designed Ambient Temperature

Up to 43 deg C Designed at 38 deg C but Decrease in cooling at 43degC

HPAC Vs. Comfort Split / Window SolutionHPAC Vs. Comfort Split / Window Solution

HPAC Vs. Comfort Split / Window SolutionHPAC Vs. Comfort Split / Window Solution

Item Description HPAC Comfort Split/Window AC’s

Filtration 80%-85% down to 20 Microns

70% down to 20 Microns

Overload protection for individual components

Yes No

Indoor-Outdoor Copper Piping

Heavy Gauge Copper Soft Copper Piping

Piping Insulation FR Rated Ordinary foam

Cabling work FR LS Normal Type

Capital Investment ( Capex)

high Low

Running Cost (Opex) Low Higher

Indoor Unit Motor Direct Coupled with Blower & IP-44 Protection

Ordinary motor

Summary & Conclusion:- Technology Trend in CoolingSummary & Conclusion:- Technology Trend in Cooling

Tech

no

log

y ��

Window / SplitUnit

Comfort PAC

Chilled water& DX Plant

CW + PAHUCW + Dual Fluid

Industrial AC System

Time ��

Comfort High Performance

Solution for Modern Control Room

PAHU5 TR to 40 TR PeX

5 TR to 30 TR

UCS 24x7

3.5Tr,

6.5Tr,

7.5Tr

I/Split

2Tr,

3Tr,

4Tr



Generator

InboundPower

UtilityAC

DC Power Systems


AC Power Systems

TVSSUPS PPC / PDU

OEM Embedded



Racks

Precision Air


RACKS


ACTIVE FILTERSSTS

Comprehensive Site Monitoring Comprehensive Site Monitoring

SiteScan Web Server

A computer running SiteScan Web Server Software under Windows 2000, XP or other Java compliant OS. The SiteScan Web Server manages the database and servers web pages to the SiteScan Web Clients.SiteScan Web Client

Any PC on the network running Microsoft Internet Explorer 5.5 or higher.

Site Gate

Gateway/router module that interfaces the control module network to the BACnet/IP network. Site Link

Interface Module for Liebert Equipment. Also provides Modbus or BACnet to BMS systems.Site I/O

Interface Module for Dry Contact Closures or Analog Sensors

Site TPI-M

Interface Module for Modbus devices.

1

2

3

4

5

6

Ethernet LAN / WAN

Site Gate

Site I/O Temperature

SiteScan Web

Client

Fire / SmokeFire / Smoke

Site TPI-M

Site Link

1

2

3

4

5

6

Ethernet LAN / WAN

SiteScan Web

Server

SiteScan Web

Client

Typical Remote Monitoring Screen



Generator

InboundPower

UtilityAC

DC Power Systems


AC Power Systems

TVSSUPS PPC / PDU

OEM Embedded



Racks

Precision Air


RACKS


ACTIVE FILTERSSTS

TechnologyTechnology

Existing

Phase Controlled Thyristor Based Conventional Technology

Latest

High Frequency Switch Mode Technology


� Battery Charger function


� Ferroresonant Battery Charger

�


� SCR Controlled Battery Charger


Typical Switchmode Power Supply


SMPS Battery Charger


Technology ComparisonCOMPARISON

CRITERIAFERRORESONANT SCR SWITCHMODE

Efficiency Medium at full load

Low at light load

Medium High

Response Very Slow Medium Very Fast

Control Minimal Medium High

Size and Weight

Large / Heavy Large / Heavy

Small / Light

Noise Very Audible Audible Non Audible

Complexity Low Medium High

FeaturesFeatures� Efficiency > 90%

� Power Factor > 0.90

� Low EMI

� DC ripple ≤0.5%, regulation ≤1.0%

� MTBF > 3,00,000 Hours

� Hot swappable Charging Modules

� Intelligent Battery Management

� Online Insulation Monitoring

� Remote Monitoring

� Parallallable for redundancy

� Smaller in size & weight

Advantages

Performance ReasonsEnergy Efficient � Much better efficiency.

� Improved power factor.

High Reliability � Paralleling feature of charging modules.

� Very good MTBF of Charging modules.

� Compatibility to IEC & UL standards.

Increase in Battery Life

� Intelligent battery management.

� Improved DC characteristics.

Online Maintenance � Hot swappable design of charging module.

Suitable For All Type

of Batteries

� Wide DC output voltage range of charging modules.

AdvantagesAdvantages

Performance ReasonsCapacity Expansion � Modular Concept of Charging modules.

Space Saving � Smaller in size & light in weight.

Suitable For Manned & Unmanned Stations

Remote monitoring of parameters through RS485/ RS232 interface for the following.

� System status, performance & alarm functions.

� Status of individual battery cell voltage.

� Earth fault of individual feeders with fault indication.

� Individual feeder On / Off / Trip status.

Thyristor vs SMPS TechnologyThyristor vs SMPS Technology

Parameter Thyristor SMPSPrinciple of operation Phase Angle

Control Of Mains Frequency

High Frequency Pulse Width Control

Voltage Stabilization Tolerance

≥ ± 2% ≤ ± 1.0%

Current Stabilization Tolerance

≥ ± 2% ≤ ± 1.0%

Ripple Coefficient ≥ 2% ≤ 0.5%

Response Time ≥ 800 m. sec ≤ 1 m. sec

Power Factor at 100% Load ≤ 0.7 ≥ 0.9

Efficiency at 100% Load ≤ 80% ≥ 90%

Efficiency at 50% Load ≤ 70% ≥ 80%

MTBF ≤ 1,00,000 Hours ≥ 3,00,000 Hours

Standby Mode ( 1 + 1 ) Off line ( n + 1 ) Modules On line

Remote Control & Monitoring Poor Very Good

ComparisonComparison

Efficiency

� 10% more efficient at full load

� Much more efficient at 50% load ( normal working load )

� Net saving in energy units –

10% ( Minimum )70

75

80

85

90

95

Efficiency ( % )

Thyristor

Switch Mode

74

76

78

80

82

84

86

88

90

Efficiency ( % )

Thyristor

Switch Mode

ComparisonComparison

Power Factor

� Huge improvement in AC input Power factor

� Current drawn from the AC Mains is much lesser

� Reduction in current ratings of AC input cables, circuit breakers, fuses etc.

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

Power Factor

Thyristor

Switch Mode

Rectifier Operating PrincipleRectifier Operating Principle

Input

EMI

3PH

passive

PFC

AC/DC

DC/ACOutput

EMI

AC

inp

ut

de

tec

tion

pro

tec

tion

DC/DC

control and

protection

Ou

tpu

t vo

lt.,

cu

rren

t, an

d

tem

p s

ign

al

PCURS485

High

frequency

transformer

PWM

generator

3PH AC

input

DC

output

Rectifi-

cation

and

filtering

Au

xilia

ry

po

we

r

Charging ModuleCharging Module

� Features :

� Three phase three wire input.

� Wide input voltage range .

� Wide output voltage range.

� Efficiency up to 90% with low EMI.

� Hot swappable design.

� Active current sharing.

� EMC and Safety complies with IEC standard.

� Low output ripple, very good regulation.

� Increased battery life expectancy.

� Remote adjustment of parameters ensures

suitability for unattended installations.

Standard Models

110V DC / 10A

110V DC / 20A110V DC / 40A

220V DC / 05A220V DC / 10A

220V DC / 20A

Rectifier Module : 24V/ 75ARectifier Module : 24V/ 75A

Power Control Unit

� Features ;

� Remote monitoring.

� Control of system performance.

� Monitoring of system status.

� Visual / audio alarm for system failure.

� Event log.

� Can be used with both 110V & 220V Systems.

� Switching between float & boost charging.

� Current limiting charging.

� Temperature compensation.

RST button

Alarm indicator

Run indicator

Function keys

LCD

Power Control Unit

▪ Monitoring : The following parameters can be monitored on LCD display

.

• AC Voltage

• Load Voltage

• Battery Voltage

• Battery Current

• Load Current

▪ Status : Display the status of the following.

• AC input Circuit breaker

• DC output circuit breaker

• Battery fuse

• Surge Protection Device fault

Power Control Unit

▪ Alarms : The following alarms are provided.

• Input Circuit breaker trip • AC under / over voltage / fail

• Output Circuit breaker trip • DC under/ over voltage

• Battery fuse fail • Battery Cell under / over voltage

• Surge protection device fault • Battery bank temperature

abnormal

• Rectifier module fault • System insulation fail

• Communication interruption

▪ Host Communication : Communicate with the host in RS232 mode.

Insulation MonitorInsulation Monitor� Features ;

� Monitoring of

* On line insulation between DC bus &

earth.

* 2 independent buses simultaneously.

* Maximum 768 nos. of subsidiary branches.

� Suitable for

* Both 110V & 220V DC systems.

* Variable alarm settings to adopt to

different climates.

� EMC and safety meets relevant IEC

standards.

Battery DetectorBattery Detector

� Features :

� Monitoring of

* On line individual battery cell voltage

* Input Voltage range : 80 – 320V DC

* Maximum 24 nos. of battery cell voltages/

detector

* battery cell voltage range : 0.1V – 16.5V

� Isolated voltage measurement ensures stable &

safe operation.

� Capable for variable settings to adapt to

batteries of different makes..

Block Schematic DiagramBlock Schematic Diagram

ACDistribution

Unit

ChargingModule

( 1 )

SwitchingBus

ChargingModule( N+1 )

Distribution Monitoring

Unit

ControlBus

VoltageRegulator

InsulationMonitor

PowerControl

Unit

BatteryBank

Remote Monitoring

Outputs

Outputs

- ve

Output

+ ve

+ ve

AC Input - A

AC Input - B

BatteryMonitor

• Indicates DC Current path incase of AC Input failure

DC Power SystemDC Power System

AC Input DC Output

InsulationMonitor

DCDistribution

BatteryBank

Battery Detector

Power Control Unit(Monitoring Module)

Monitoring Center

DC Output :110.00 Volts

Charging

Modules

DC Power Systems – 220V/ 450ADC Power Systems – 220V/ 450A

Wall Mounted SystemWall Mounted System

Power indicator

Alarm indicator

PCU

Voltage regulator

Rectifier (two)

Bypass switch of

voltage regulatorCable entry hole

Cable entry holeInstallation hole (four)

EDCF-1 Sub rack SystemEDCF-1 Sub rack System

ApplicationsApplications

� Energy & Power : Generation, Transmission &

Distribution

� Petrochemicals, Oil & Gas : On shore, Off Shore

Pipelines

� Transportation : Railways, Airports, Shipping

� Instrumentation & Process Control : Chemicals, Steel,

Cement, Paper

� Other Industrial Facilities of Process Plants

Customer ListCustomer List• Adani Power- 220V/ 450A

• Numalighar Refinery Ltd. : 110V/ 400A

• Nirma - Ahmedabad : 110V/ 80A

• Reliance, Hazira - 220V/ 100A

• Jupiter - Jamshedpur : 110V/ 40A

• NTPC - Barh : 24V/ 400A / 600A / 900A

• Tisco - Jamshedpur: 110V/ 60A

• Essar Power Ltd - Hazira : 24V/ 600A

• Reliance Energy : 48V/ 35A

• Rainbow Papers Ltd – Ahmedabad : 220V/ 30A

• L&T : 110V/ 20A

• Ultratech Cement Ltd : 110V/ 40A

• DMRC : 110V/ 30A

Introduction to Liebert AF3Introduction to Liebert Introduction to Liebert AF3AF3

True Active Harmonic SolutionTrue Active Harmonic Solution

� Increasingly Sensitive Loads

� Increasing use of power electronics in equipments

� Increasing emphasis on power system efficiency and maximum utilisation

Why Power Quality Is Important?Why Power Quality Is Important?Why Power Quality Is Important?

Equipment demands this BUT gets this…..

Spike

Sag

Surge/SwellPower Fails

FrequencyChangeTransients Harmonic Distortion Noise

Types of Power Quality ProblemTypes of Power Quality ProblemTypes of Power Quality Problem

�Most commonly

detected problem

Harmonics Harmonics Harmonics

Harmonics Originators :

Nonlinear Load

� SMPS, DC power supply/chargers

� Uninterruptible Power System (UPS)

� Frequency converters

� AD/DC variable speed driver (VFD, ASD)

� Fluorescent lamps

� Welding machines

� Computers and peripherals

�What are harmonics?

� - Voltage or current waveform that are not at the desired 50 or 60 Hz fundamental

� frequency, but at some multiple frequency.

Effect Of HarmonicsEffect Of HarmonicsEffect Of Harmonics

� Overheating of Generator, motor, transformer.

� Overvoltage conditions on supply system.

� Increased transformer losses (need to over-size)

� Nuisance tripping of circuit breakers

� Improper operation of microprocessor-based equipment

� Overheating and possible resonance with capacitors

� Cause fire in wiring & other distribution system equipment

� Neutral burnout & the list can go on & on.

More than half of the total harmonics distortion is caused

by Third harmonics .

� Third (triple-n) harmonics in the phase conductors add in the neutral

- Neutral current can be up to 172% of phase currents

� Third harmonics circulate in the delta winding, causing overheating of the

Transformer

� Neutral conductors must be oversized

� Eddy current losses cause excessive heating in the transformer: De-rating

required

� Breakers Must be oversized

� Standard transformers DO NOT cancel harmonics

3rd Harmonics 3rd Harmonics 3rd Harmonics

�“3rd harmonics is also called triple-n harmonics which has 150Hz frequency “

� ( 3 * fundamental frequency i.e 50 Hz)

�Effects

� Survive

- De-rate Up-stream equipments

� Isolate

- Isolated the harmonic rich load

- Use of Line Reactors or Isolation transformers

� Divert

- Use tuned filters to reduce selected harmonics

�Cancel

- Use phase shifting techniques to cancel load generated harmonics

Harmonic Control TechniquesHarmonic Control TechniquesHarmonic Control Techniques

�Neutralize- Active Harmonic Filter

“Harmonics” one stop solution : Liebert AF3““HarmonicsHarmonics”” one stop solution : one stop solution : Liebert Liebert AF3AF3

What is Liebert AF3?

It is an active harmonic filter which neutralize the effects of harmonics & correct the power factor at the chosen level

Functions:

� Harmonic Compensation

� Reactive Compensation

� Load balancing

� Selectivity

Ratings Available - 30,60,100,150,300 Amps

Modus OperandiModus OperandiModus Operandi

� It is based on source current harmonic sensing.

� Source current is fed to high speed AD Converter of DSP.

� Source current harmonics are extracted by DSP.

� These harmonics are injected to the load by filter.

� This in turn takes only fundamental harmonic current from the mains.

Improves-Reliability of the electrical system -Reduces cable-Transformer losses…..

� Liebert AF3 latest technology to eliminate harmonics injected into the

mains supply by non-linear loads.

�Cancel the loads harmonic current and then obtain a sinusoidal current

in the utility.

Single Line Diagram for AF3Single Line Diagram for Single Line Diagram for AF3AF3

Product Features Product Features Product Features

� Synchronous Rotating Reference Frame principle

� 32 bit, DSP control

� PF compensation, leading as well as lagging

� Load Balancing

� Employees high speed IGBTs in power circuit

� Internal CAN Communication

� Closed loop active filter with source current sensing

�Continued …..

Product FeaturesProduct FeaturesProduct Features

� Required PF can be set from 0.7 to unity

� Selection between PF and harmonic compensation

� Remote monitoring and diagnosis

� Automatic current limit modification with respect to ambient temperature

� Alarm log with date and time stamp for fault diagnosis.

Close Loop Control Close Loop Control Close Loop Control

� Close Loop Control: CT installed at Source side

Close Loop Control is recommended.

External CT

xxxx/1

Close Loop Control

A B C

X2

CTA

X1

X1

X2

X1

CTB

X2

X2

CTC

X1

X2

X1

X2

X1

CTA CTB CTC

Enersine

Control ModuleExternal Terminal Input Terminal

Phase A

Phase B

Phase C

SOURCE

POWER

Phase C

Phase B

Phase A

LOAD

Control & Power Module

3CTs Wiring Schematic Diagram at Source Side for 3 phase 4 wires / 3 wires

� Close Loop Control

Liebert AF3

Close Loop ControlClose Loop ControlClose Loop Control

Case Study :120 kVA UPS with AF3 150 ACase Study :Case Study :120 kVA UPS with AF3 150 A120 kVA UPS with AF3 150 AA. Without Active Filter

Input Current 164 A

THDV 4.80%

PF 0.87

Voltage 217 V

THDI 27.40%

Power 93 KW

�Load Characteristics :

Continued..Continued..Continued..B. With AF3 (Only Harmonic Correction selected)

Input Current 146 A

THDV 3.70%

PF 0.92

AF3 Current 48 A

Voltage 221 V

THDI 4.00%

Power 93 KW


Continued..Continued..Continued..C. With AF3 (Power factor + Harmonic Correction)

Input Current 135 A

THDV 2.20%

PF 1

AF Bridge 95 A

Voltage 223 V

THDI 3.90%

Power 93 KW


Application AreaApplication AreaApplication Area

1. At the Input side of Rectifier, AC Drive, UPS

Harmonic & PF compensation

Continued 2..Continued 2..Continued 2..2.PF Compensation

Continued 3..Continued 3..Continued 3..3.At the source input.

1 AF3 at the Input of multiple UPS system

Liebert AF3 : Sizing calculationLiebert AF3 : Sizing calculationLiebert AF3 : Sizing calculation

� Present load current

� Measured value of THDi

� Power consumed

� Input PF measured

� Phase to Phase Voltage.

For sizing AF3 ,following data must be available;

Intuitive HMIIntuitive HMIIntuitive HMI

1. Status

2. ID

3. Input Voltage

4. Input Voltage Waveform

5. Input Voltage FFT

6. Input Current

7. Input current Waveform

8. Input current FFT

9. Input Power (KW)

10. Input Power (KVA)

11. No. of failures

12. Total Filter ON Time

13. Alarm log

14. Power Factor

15. DC bus Voltage

16. Filter Load %

17. Mains Frequency

18. Heat Sink Temperature

19. Date & Time

Following parameters are displayed

locally as well as remotely ;Front LCD Display on Liebert AF3

HMI Characteristics HMI Characteristics HMI Characteristics

� Harmonic spectrum upto 64 th harmonic of load & line current.

� True measurement of Input/output voltage ,current,Kva,kw,pf.

� Waveform-Showing real time display visual of input current, load current &Input voltage.

� Harmonics & pf configuration.

� All front display parameters including waveform can

be monitored through PC.

� Supports MODBUS protocol.

� Potential free contacts for monitoring the status of filter.

� Inbuilt SNMP & HTTP support*

*optional

OLED based graphic display showing :

Remote monitoring & Diagnosis.

CommunicationCommunication

Communication Application

RS-485/RS-422Ethernet

Remote Monitoring

Center

Monitoring

at site

Service at site

Local Control

Center

USB

RS-232

Connectivity DiagramConnectivity DiagramConnectivity Diagram

SpecificationSpecificationSpecification

We Welcome Your Queries & Views …..We Welcome Your Queries & Views …..

Colossal Thanks for your Valuable Time

emerson's power solution to aai 19-dec-11

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