Bringing enhanced reliability and simplicity to MV networks

MCset up to 24 kV air-insulated MV switchgearSF6 withdrawable circuit breakers

Energy & Infrastructure

Industry

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Reliability

Simplicity

Safety

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MCset switchgear are made up of several interconnected functional units:

MCset switchgear: Designed for quality, reliability, and ease-of-use

This section contains the medium voltage protection devices, including: • SF6 breaking devices (circuit

breakers, fuse-contactors),• lever-type propulsion mechanism

for racking in-out, and• interlocks to anchor the

withdrawable part.

Switchgear compartment

This compartment, located in the lower part of the cubicle, includes: • the earthing switch, • the current sensors (LV type CTs, magnetic

or non-magnetic transformers) and voltage transformers.

Cable compartment

This section includes: • the Sepam or MiCOM protection

relay and control unit,• the low voltage components, and• the thermal diagnosis module.

Low voltage cabinet

This section connects the switchgear cubicles via busbars.

Busbar compartment

> The power connections are made between the functional units within a switchboard via a single busbar.

> The electrical continuity of all the metal frames is provided by the connection of each functional unit’s earthing busbar to the switchgear’s main earthing circuit.

> Low voltage wiring trays are provided in the switchboard above the low voltage control cabinets.

> Low voltage cables can enter the switchboard through the top or bottom of each functional unit.

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Why should you choose MCset air-insulated MV switchgear?

MCset provides exceptional performance and outstanding reliability, helping to ensure service continuity for your networks with proven technology that’s both easy to use and to maintain.

And, with an industry reputation for both quality and reliability, MCset brings added peace of mind to the operator of any installation.

> The design, manufacturing, and testing are carried out according to ISO 9001 and 9002 standards

> Design is ensured by advanced computer modeling techniques

> Compliant with main IEC standards as 62271-200 as well as standards specific to individual countries and applications

> Type testing is also carried out in accordance with main IEC standards

Reliability

Simplicity> A clear user interface which is easily understood

> Interlocks and padlocks preventing operator errors

> Easy on-site control & monitoring

> Limited and simple maintenance for years

> Easy installation thanks to compactness

> Sepam or MiCOM protection units enabling on-site information retrieval without any additional devices

> Operations and indications are concentrated on the front of the switchgear

> Racking in and out is only possible with the door closed

> The earthing switch has making capacity

> Internal arc withstand developed for most of the functional units

> Designed with environmental protection in mind

> LSC 2B (Loss of Service Continuity category) cubicle. Metal barriers: class PM

Safety

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Exceptional performance, outstanding reliability

ISO 9001 and 9002 certified qualityEach Schneider Electric site has a functional department whose main mission is to check quality and ensure compliance with the standards.This system gives you the guarantee achieved by the system is recognised by a large number of customers and officially approved organisations.The strict, measured implementation of the system has been acknowledged by an independant organisation:

Certified quality under ISO 9001 and ISO 9002

Performance through systematic testing

> the AFAQ (French Quality Assurance Association) certification.

> The MCset switchgear’s quality system for design and manufacturing is certified according to the requirements of the ISO quality assurance standards.

During manufacturing, each cubicle undergoes systematic routine testing aimed at checking quality and conformity:

> testing of circuit breaker and contactor tightness,

> measurement of closing and opening speeds,

> measurement of operating torque,

> dielectric testing,

> testing of safety systems and interlocks,

> testing of low voltage components,

> conformity of drawing and diagrams

The results are recorded and initialed by the quality control departmenton the test certificate for each device.

A COMMITMENT TO HIGH STANDARDS> Type testing is carried out for each performance level

> Design is ensured by advanced computer modeling techniques

> Environmental management system of industrial sites, in compliance with the requirements of ISO 14001 standard

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Experience you can depend on

Our referencesWith its strong reputation, MCset has become the switchgear trusted by those who supply the most critical installations and need to ensure uninterrupted service:

As the result of our extensive worldwide experience, MCset also provides you with a high level of reliability, simplicity, and safety. It is particularly suitable for

infrastructure and large industrial sites, and is intended for use in MV sections of HV/MV substations and high-power MV/MV substations.

Sonelgaz Algeria

Moranbah Generation Facility Australia

China Nuclear Power programmes China

CEA Cadarache France

Enertherm France

Wind Turbines France

La Termica Italy

Al Fanar Electrical System Saudi Arabia

Skagerak Nett AS Norway

EVN thermal power station Vietnam

Power generation

Jan De Nul Belgium

Zhenhua Port Machinery China

FREMM France

Conti Reederei Germany

MSC Italy

M.O.L. Japan

STX Shipyard Korea

CPOC Malaysia

Sovcomflot Russia

TMT Taiwan

British Gas United Kingdom

Norwegian Cruise Line USA

Marine

Girassol Mpg-Elf Angola

ONAL Gabon

Alya Co Kazakhstan

Tengizchevroil Kazakhstan

Occidental Mukhaizna LLC Oman

Qatar Petroleum Qatar

Repsol, Santander Spain

Syrian Gas Company Syria

Turkmengaz Turkmenistan

Abu Dhabi Oil Refining Company United Arab Emirates

Yemen LNG Company Yemen

Yemgas – Technip Yemen

Oil & Gas

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MCset is an indoor switchgear assembly that provides maximum user safety. It is intended to meet all electrical distribution needs from 1 to 24 kV and incorporates a set of innovative solutions designed using proven techniques:

> high-performance breaking devices (SF6),

> digital protection and control system,

> a range of cubicles designed and tested for internal arc resistance.

The dielectric rigidity and the remarkable cut-off characteristics of this gas have made SF6 devices valuable worldwide since the middle of the 1950s. Since then, design refinements in terms of waterproofing and SF6 end-of-life processing have further reinforced their credibility.

SF6

Algérienne des eaux Algeria

Water treatment, Degremont Argentina

Alcoa Aluminium Australia

Croesus Mining Australia

Rolleston Coal Pty LTD Australia

Garadagh Cement Azerbaijan

Volvo Belgium

Cement Lafarge Equator - Turkey

Cement Lafarge France

Ford Germany

Iraq water treatment Iraq

Arab Union Contracting Company Libya

Arcelor Luxemburg

Opel Russia

Bastas Cement Turkey

Industry

New Islands Project Abu Dhabi

Hamilton Island Australia

Al Bustan Palace Hotel Oman

Buildings

Italian Railways Italy

Alicante airport Spain

Port of Laem Chabang ThailandTransport infrastructure

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MCset main characteristics

1). For functional units equipped with circuit breakers or fuse-contactors, the breaking capacity is equal to the short time withstand current. In all cases, the device peak making capacity is equal to 2.5 times the short time withstand current. 2). With fan. 3). Lightning impulse dielectric withstand voltage = 60 kV peak 4). Limited by fuses (prospective value) 5). With Rollarc contactor 6). Limited to 1 s for in-circuit breaker: 1250 A. 7). For higher performance, consult us. 8). According to IEC 62271-105, combinations do not have a rated short time withstand current. 9). In accordance with IEC 62271-106. Please consult us for more information on technical characteristics.

The values above are given for the normal operating conditions as defined in IEC 62271-200 and 62271-1

Rated voltage

Ur (kV) 7.2 12 17.5 24

Rated insulation levelPower frequency withstand voltage 50 Hz - 1 min

Ud (r ms kV) 20 28 38 50

Lightning impulse withstand voltage 1.2/50 µs

Up (kV peak) 60 75 95 125

Rated normal current and maximum short time withstand current (1)

Functional unit with circuit breaker

Short time withstand current

Ik max. Ik/tk(kA/3 s)

25 25 25 16

31.5 31.5 31.5 25

40 40 40 31.5

50 (6) 50 (6)

Rated current Ir max. busbar Ir (A) 4000 4000 4000 2500 (7)

Rated current Ir CB Ir (A) 1250 1250 1250 630

2500 2500 2500 1250

3150 3150 3150 2500

4000 (2) 4000 (2) 4000 (2)

Functional unit with fuse-contactor (3)

Short time withstand current (prospective value) (9)

Ik max. (kA) 50 (4) 50 (4) (5)

Rated current Ir max. (A) 250 200 (5)

Functional unit with switch-fuse combination (DI cubicle) (8)

Rated current according to the fuses installed, see documentation

Rated current Ir max. y (A) 200 200 200 200

Internal arc classification (maximum value IA and tA)

(kA/1 s) 50 50 50 25

(kA/0.15 s) 31.5

Degree of protection

IP3XIP4X (7)

IPX2

IP3XIP4XIPX1 (7)

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Enhanced safety for your staff and operations

High-level protection of people MCset is designed to protect users through its resistance to faults due to internal arcing. MCset offers several options for switchboard layouts:

> Three-sided internal arc protection: installation of a switchboard against a wall,

> Four-sided internal arc protection: installation of a switchboard requiring rear access in the middle of a room.

Built for ease of servicingEach section is isolated from the others by earthed, metal partitions. This means that servicing can be carried out in one of the compartments while the others are

still energised. The earthing switch has full making capacity and provides total user protection in the event of closing on a dead short-circuit.

Safe operationThe risks of operating errors are rigorously ruled out with MCset. In fact, the range offers an unprecedented level of user protection against risks that might otherwise occur during operation. To summarise, the MCset design prioritizes to four points:

> simple use,

> clear, reliable status information,

> safety interlocking,

> safety systems that prevent all unauthorised operations.

Simplicity of designThe user interface is easy to understand.The user is guided through icon-diagrams on each front panel making it easy to understand

the operating sequence and devices status.Easy installation thanks to compactness.

Reduced maintenance and reduced probability of failure with thermal diagnosis systemSpecially designed for Schneider Electric MV equipment, our thermal diagnosis system continuously monitors the switchgear temperature, using optical fibres and sensors installed at the heart of the sensitive areas.Thermal diagnosis is based on the principle of temperature measurement of energised circuits. By using optical fibres, the system

does not introduce any risks in terms of insulation. It provides:

> permanent monitoring of the temperature rise in power circuits at the connections

> tripping of a pre-alarm, then an alarm by activating dry contact outputs

> indication of the zone and circuit involved

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An adaptable range to meet your needsWith five functions available in 13 functional units*, MCset has a comprehensive range of functions to suit all requirements of a variety of applications.

The tables below can be used to link the requirements to functional units and provide basic information on the general composition of each unit.

Incomer/feeder

Feeder (motor, capacitor)

Bus-sectioning

• switchboard (BS-B)• substation (SS-B)

• line (LI-B, LF-B)• t ransformer

(TI-B, TF-B, TF-S)• generator (GI-B)

• motor (MF-B, MF-C)• capacitor (CB-B, CB-C)

• switchboard (BB-V)

Metering and busbar earthing

* possibility of Transition cubicle for MCC application (Motorpact)

busbarLV cabinet withdrawable fuse-contactorcurrent sensorsearthing switchvoltage transformersMV connections

busbarLV cabinet withdrawable partcurrent sensorsearthing switchvoltage transformersMV connections

busbarLV cabinet withdrawable partcurrent sensorsvoltage transformers

busbarLV cabinet earthing switchvoltage transformers

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Delivering innovative products, services, and solutionsworldwide

Schneider Electric Industries SAS

Head Office35, rue Joseph MonierCS 3032392506 Rueil-Malmaison CedexFrance

www.schneider-electric.com Date: 06/2013

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