ECOSMART GISMedium Voltage Gas Insulated Switchgear for Secondary Distribution

Modular units are available with different combinations of functionality in order to satisfy the most common electrical configurations of typical substation and distribution circuits. The series brings to the market a versatile switchgear ready to cover a variety of installation requirements and market segments.

ECOSMART GIS

Medium Voltage Gas Insulated Switchgear for Secondary Distribution 1

A Company Attuned To Your Needs

Service continuity, long life performance and personal safety are paramount. The ECOSMART GIS series is fully developed and type tested according to the IEC standards 62271-200.

The health and safety management system complies with the OHSAS 8001standards and is certified by a third party. The internal test laboratory complies with UNI CEI EN ISO/IEC 17025 with tests certified by an independent certification body.

Sustainability and Environment Care

Flexibility

The ECOSMART GIS series development has been driven by environmental sustainability. The materials used for its production allow a low environmental impact during the product life cycle.

The ECOSMART GIS production site and the environmental management system assumed by G&W Electric is in compliance with the standard quality rules of ISO 14001.

After a century of engineering exceptionally long-lasting electrical distribution and transmission solutions, G&W Electric knows power. And more importantly, we know the power of listening. By taking time to understand your application and asking the right questions, we develop solutions tailored to your needs. The answer may be our time-tested switches that keep power running seamlessly in mission-critical applications, or an advanced automa-tion system for next-generation grids. Whatever your challenge, you’ll experience decades of high performance — and your needs will always be heard.

ECOSMART GIS

General Description

The ECOSMART GIS series is composed of gas insulated Ring Main Units (RMUs) developed and manufactured in accordance with the following standards:

• IEC 62271 - 200 High-voltage switchgear and control gear - Part 200: AC metal-enclosed switchgear and control gear for rated voltages above 1kV and up to 52kV

• IEC 62271 - 100 High-voltage switchgear and control gear - Part 100: Alternating-current circuit-breakers

• IEC 62271 - 102 High-voltage switchgear and control gear - Part 102: Alternating current disconnectors and earthing switches

• IEC 62271 - 103 High-voltage switchgear and control gear - Part 103: Switches for rated voltages above 1kV up to 52kV

• IEC 62271 - 105 High-voltage switchgear and control gear - Part 105: Alternating current switch-fuse combinations for rated voltages above 1kV up to 52kV

• IEC 60255 - Measuring relays and protection equipment - Part 1: Common requirements• IEC 60529 - Degrees of protection provided by enclosures (IP Code)

ECOSMART GIS is a range of gas-insulated switchgear for medium voltage power distribution rated 12-24kV. It is available in compact and modular versions, both designed to accommodate many applications including:

• Transformer substations• Hospitals• Residential centers• Buildings• Mines• Data center protection• Industries• Renewable energy plants

The compactness of the Ring Main Units (RMUs) and the small dimensions of the modular range allow the ECOSMART GIS series to be easily installed in prefabricated substations, kiosk substations and wind towers. The gas technology allows the product an extended service life with reduced maintenance, even with severe climatic and altitude up to 1000 meters.

The operating mechanism is optional to install a low voltage box to contain the low voltage circuits as well as protection and measuring devices.

The panel bottom is closed by metal sheets equipped with grommets to enable the entry of medium voltage cables. Holes are provided in the structure’s corners to fix the panel to the floor. Dedicated metallic ducts are located on the side of the cable compartment to contain the auxiliary circuit wires.

All equipment installed inside the panel (switch disconnectors, circuit breakers and fuses) are removable to allow maintenance.

ECOSMART GIS - Single unit with low voltage cabinet

ECOSMART GIS - Multiple units

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Types

ECOSMART GIS

Medium Voltage Gas Insulated Switchgear for Secondary Distribution 3

ECOSMART GIS DESCRIPTION

TYPOLOGIES COMPACT

3S Compact switchgear with 3 switch-disconnectors

4S Compact switchgear with 4 switch-disconnectors

BS Compact switchgear with 1 busbar riser and 1 switch-disconnectors

BFS Compact switchgear with 1 busbar riser and 1 fuse switch-disconnectors

SFS Compact switchgear with 1 switch-disconnector and 1 fuse switch-disconnector

2SFS Compact switchgear with 2 switch-disconnector and 1 fuse switch-disconnector

3SFS Compact switchgear with 3 switch-disconnector and 1 fuse switch-disconnector

4SFS Compact switchgear with 4 switch-disconnector and 1 fuse switch-disconnector

2S2FS Compact switchgear with 2 switch-disconnector and 2 fuse switch-disconnectors

2S3FS Compact switchgear with 2 switch-disconnector and 3 fuse switch-disconnectors

3S2FS Compact switchgear with 3 switch-disconnector and 2 fuse switch-disconnectors

BCBS Compact switchgear with 1 busbar riser and 1 vacuum circuit breaker

SCBS Compact switchgear with 1 switch-disconnector and 1 vacuum circuit breaker

2SCBS Compact switchgear with 2 switch-disconnector and 1 vacuum circuit breaker

3SCBS Compact switchgear with 3 switch-disconnector and 1 vacuum circuit breaker

2S2CBS Compact switchgear with 2 switch-disconnector and 2 vacuum circuit breaker

MODULAR UNITS 12-24kV

B Modular extensible switchgear with busbar riser

S Modular extensible switchgear with switch-disconnector

FS Modular extensible switchgear with fuse switch-disconnector

CBS Modular extensible switchgear with vacuum circuit breaker

BCS Modular extensible switchgear busbar coupler with switch-disconnectors and busbar riser

BCCBS Modular extensible switchgear busbar coupler with circuit breaker and busbar riser

METERING UNITS 12-24KV

MDDAV Metering unit bottom incoming-outgoing cables

MDDV Metering unit bottom incoming-outgoing cables only for VTs

MLRAV Metering unit incoming-outgoing from sides

MLINK-V Metering unit arranged for VT with connecting points isolated

MLINK-AV Metering unit arranged for CT & VT with connecting points isolated

MLINK-AVB Metering unit arranged for CT & VT with busbar riser and connecting points isolated

ECOSMART GIS ComponentsCompact series, configuration 2SCBS

1. Lifting eyebolts2. Stainless steel tank3. Operating mechanisms4. Vacuum circuit breaker5. Voltage presence indicators 6. Pressure gauge7. Support frame8. Cables compartment9. Cables Compartment Panel10. Low Voltage Cabinet11. Fuse Holders12. Optional Key Locks13. Cable Bushings

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ECOSMART GIS

Features and Benefits

With over 100 years in manufacturing switchgear, the ECOSMART GIS secondary distribution switchgear line offers a comprehensive range of functions. The unit is gas insulated to provide a low maintenance, compact, safe, and easy to install product to meet the most difficult application.

Safety/Reliability:

• Total insulation of the live components ensured by the MIG welded stainless steel tank filled with Gas (sealed pressure system as defined by the IEC 62271-200)

• Complete grounding of the whole switchgear• Complete interlocking system allows safe operating sequences• Anti-reflex function of the operating lever• Switch-disconnector positive position indicator• Earthing switch with making capacity• Pressure relief valves located under the switchgear for overpressure venting in the event of an internal arc• Internal arc fault protection both for the gas tank and cable’s compartment (IAC classification: AFLR up to

20 kA x 1 second as per IEC 62271-200)• Long service life• Pressure monitoring by included pressure gauge and, upon request, a pressure switch with auxiliary

contacts

Versatility:

• Compact and modular versions available• Fuses and vacuum circuit breaker protection functions• Wide range of accessories available • Easy installation• Maintenance free• Reduced footprint

Easy operations:

• Operations are carried out from the switchgear front side• Mimic diagram indicating the switch-disconnector, earth switch and vacuum circuit breaker positions• Clear operation sequences applied on the mimic diagrams• Front cables connection and accessibility• Complete set of interlocks

Easy installation and handling:

• The reduced dimensions of the range gives advantages during the switchgear installation, allowing: - Reduced installation rooms (kiosks, mobile substations, etc.) - Reduced civil works cost - Easy transport and handling

Environmental care:

• Manufacturing energy optimization due to the switch-disconnector and cubicle components material• Reduced use of epoxy resin components• Reduced gas quantity • Use of recyclable material with easy recovery and reuse at the end of the product life

ECOSMART GIS

Medium Voltage Gas Insulated Switchgear for Secondary Distribution 5

Protection Degrees

The ECOSMART GIS protection classes comply with the standard IEC 60529. As a switchgear for indoor installation, it offers the following protection degrees:

Switchgear Protection Degrees according to IEC 60529

Main Circuits (Gas enclosure) IP 67

Fuses Holders * IP 3X

Operating Mechanism IP 3X

Cables Compartments * IP 3X

Upon request available with IP42

Environment and Operational Conditions

The ECOSMART GIS switchgear can operate in environmental conditions as described in the IEC standard 62271-1. Operation and installation conditions that deviate from those specified below are not allowed and must be agreed with G&W Electric.

Switchgear Operation Conditions according to IEC 60271-1

Temperature (for service) -5 °C / +40 °C (-25 °C available upon request)

Temperature (for stocking) -40°C / +70°C

Average temperature over 24h 35°C

Maximum altitude (above sea level) <1000 m

ECOSMART GIS - Internal view

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Technical Characteristics

ECOSMART GIS

Rated voltage Ur (kV) 12 17,5 24Rated Frequency FR (HZ) 50/60 50/60 50/60Power frequency withstands voltage•• Towards ground - between phases •• Across insulating distance

Ud (kV) 2832

3845

5060

Rated lightning impulse withstand voltage•• Towards ground - between phases •• Across insulating distance

Up (kV) 7585

95110

125145

Rated current Ir (A) 630 630 630Rated short time withstand current 1 second1 Ik (kA) 16-20-25 16-20 16-20Internal arc withstand current - 1 S (IAC AFLR) (kA) 20 20 20

Service continuity LSC2A as per IEC 62271-200

Filling pressure / Rated filling pressure at 20°C kPa 140 140 140Minimum functional pressure kPa 130 130 130Service Temperature (IEC 62271-1) °C -5 / +40 2 1) Available upon request at 20kA x 3 sec.2) Available upon request at -25°C

SWITCH DISCONNECTOR

Rated current Ir (A) 630 630 630

Breaking capacity of active circuits (cosƒ 0,7) and ring circuits at 0,3 Vn TDload2-Tdloop 630 630 630

Breaking capacity of no load cables TDcc2 (A) 10 10 16

Short time withstand current 1 second Ik (kA) 16-20-25 16-20 16-20

Closing/opening operation at the rated current N. 100 100 100

Making capacity TDma (kA) 40-50-62,5 40-50 40-50

Making capacity closing operations N. 5-5-2 5-5 5-5

Mechanical operations N. 1000 1000 1000

FUSE SWITCH DISCONNECTOR

Rated current Ir (A) 630 630 630Making capacity Ima (kA) 40-50-62,5 40-50 40-50

VACUUM CIRCUIT BREAKER

Power frequency withstands voltage 50/60 Hz 1 min. Ud (kV) 28 28 50

Rated lighting impulse withstand voltage Up (kV) 75 95 125

Rated current Ir (A) 630 630 630

Rated breaking capacity Isc (kA) 16-20-25 16-20 16-20

Rated short time withstand current 1 sec. Ik (kA) 16-20-25 16-20 16-20

Mechanical Operations N. 10000 10000 10000

ECOSMART GIS

Medium Voltage Gas Insulated Switchgear for Secondary Distribution 7

The sealed stainless steel tank containing gas with a pressure of 0,4 bar at 20°C, ensures a high level of personnel safety, service reliability and reduced maintenance.

All items are front accessible including the operating mechanisms, vacuum circuit breakers, fuse holders and medium voltage cables. Mechanical interlocks are provided between the 3 positions switch-disconnector, the earth position, the vacuum circuit breaker and the cables compartment panels to permit operations only in safe conditions.

The line and earth contacts are driven by a 3 position operating mechanism with two different operating lever slots which are mechanically interlocked. On top of the vacuum circuit breaker function (CBS), a low voltage box can be installed to house the auxiliary circuits, measure instruments and to house the protection relays.

The bottom plates of the cables compartment are equipped with grommets to allow the medium voltage cables entry. Cable clamps are included to situate and maintain the medium voltage cables. Floor fastening holes are included on the bottom of both sides of the switchgear as well as in each corner of the switchgear support frame.

Extension Kits

All units can be ordered in a modular version to allow installation of additional units on both the left and right hand side.

This is accomplished through the use of extension kits positioned on the top or sides of the unit. The modular RMU type must be specified before the units go into production.

The modular version of the ECOSMART GIS product provides unique flexibility allowing a wide range of combinations to meet any application.

Steel Tank

The live parts including switch-disconnectors, earth switches, vacuum circuit breakers and power busbars are housed inside a stainless steel tank welded and insulated with gas. It is possible to combine up to five functions inside a single tank, to meet a wide variety of electrical configurations.

The gas insulated stainless steel tank is positioned on a support frame made of pre-galvanized metal sheets (Fe P02 G Z275 MA UNI EN10142) having 20/10mm of thickness. The operating mechanisms covers, as well as the cable compartment panels, are made of carbon steel metalsheet (P11) powder-painted grey RAL 7035 with degreasing and hot phosphate treatment with embossed finish (orange peel effect).

The ECOSMART GIS switchgear units have been designed to be maintenance free. The active parts of the switchgear are contained and sealed in a stainless steel tank filled with gas which allows compact dimensions compared to other insulation mediums. The gas can be easily recovered at the end of the product life through the filling valve positioned on the switchgear tank. The switchgear has been designed as a sealed pressure system as defined by IEC 62271-1.

Technical Features

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Contact us today+1.708.388.5010 or info@gwelectric.com

Since 1905, G&W Electric has been a leading provider of innovative power grid solutions, including the latest in load and fault interrupting switches, reclosers, system protection equipment, power grid automation and transmission and distribution cable terminations, joints and other cable accessories. G&W is headquartered in Bolingbrook, Illinois, U.S.A., with manufacturing facilities and sales support in more than 100 countries, including China, Mexico, Canada, UAE, India, Singapore, Brazil and Italy. We help our customers meet their challenges and gain a competitive edge through a suite of advanced products and technical services.

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