Simover C

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Power Transmission and Distribution

PTD H 2 E1/0605_E50105_W0048_U090_Description_SimoverC.doc /12

123 / 145 kV – Air Insulated Substation

Simover CSiemens movable circuit breaker - Compact solution

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HERAUSGEGEBEN VON:

PUBLISHED BY:

SIEMENS AG

POWER TRANSMISSION AND DISTRIBUTION GROUP

HIGH VOLTAGE SUBSTATIONS DIVISIONPTD H 2

D-91050 ERLANGEN

Bei Rückfragen:

TEL.: +49 9131 7 33642

FAX: +49 9131 7 31858

Änderungen vorbehalten.Alle Rechte vorbehalten, insbesondere (auch auszugsweise) die des Nachdrucks, der Wiedergabe durchKopieren oder ähnliche Verfahren.Zuwiderhandlungen verpflichten zum Schadensersatz.Alle Rechte vorbehalten, insbesondere für den Fall der Patenterteilung oder GM-Eintrag.

Subject to change.All rights, including rights of translation, reproduction by printing, copying or similar methods, even of parts arereserved.Offenders are liable to the payment of damages.All rights are reserved in the event of the grant of patent or registration of a utility model or design.

Stand: 06.2006Erstellt: PTD H 2 E1 Lingner

Freigabe: PTD H 2 E Nährig

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1 Table of contents

1 TABLE OF CONTENTS 3 2 DESCRIPTION 4 3 FUNCTION 4 4 THE ADVANTAGES IN ONE VIEW 5 5 TECHNICAL DATA 6 6 SIMOVER C MODULE DESCRIPTION 7 6.1 Circuit breaker 8 6.2 Current transformer 8 6.3 Ruhrtal Contact system 9 6.4 Built-on Earthing switch mounted at instrument transformer (principle arrangement) 9 6.5 Steel structure with driving unit 10 6.6 Local control cubicle 11 6.7 Transportation vehicle 11 7 MAINTENANCE 12

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2 Description

For 123 and 145 kV substations with single busbar system a suitable compact alternative is

the SimoverC arrangement (Siemens movable circuit breaker). In this kind of switchgearbusbar- and outgoing disconnector become inapplicable (switchgear without disconnectors).A common steel frame is the bases for all components necessary for a reliable operation.The movable circuit breaker contains the following mainly type tested standard components:

• Circuit breaker type 3AP1

• Disconnector contact system DBF

• Instrument transformer for protection- and measuring purposes

• Local control system

• Earthing switch (OHL-connection bays)

Within the client receives all components which are needed for the full function of theSimover C from one source, thus extra orders have become inapplicable. As a result thecoordination also takes considerably less time. All systems are pre-assembled as much aspossible. So the movable circuit breaker can be mounted efficient and faultless with the helpof the installation instructions at the construction site.

3 Function

The isolating distance is reached with the moving of the circuit-breaker on the swing-structure, similar to the well-known withdrawable-unit design technique of medium voltageswitchgears. In disconnected position, busbar, circuit-breaker and outgoing circuit areseparated from each other by a good visible isolating distance. A drive unit ensures theuninterrupted constant moving motion to the both end positions. The circuit-breaker can onlybe operated in the ON-position. Mobility with switched-on circuit breaker is impossible. Afaulty moving motion, which would be equal to operating a disconnector under load, isinterlocked. Also with a possible malfunction of the position switch, respectively travelinterruptions between disconnected position and operating position, the operation of thecircuit-breaker is stopped.

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4 The advantages in one view

• Reduction of total costs compared with the conventional switchbay design.

• Due to the fact that the control cubicle is directly mounted onto the supporting frame withlocal operation, interlocking and protection devices, the movable circuit breaker is onprinciple with a auxiliary supply ready for operation.

• Because the control cubicle is located at operation height, a trouble-freeoperation/control of the movable circuit breaker is possible.

• An eventually necessary modernisation of the control room is not really necessarybecause of the integrated control cubicle and can occur at a later point of time.

• The assembling can be done by the user himself at site. No special erector is neededonly the final commissioning and adjustment of the contact system has to be done

according to installation instructions.

• A reduction of required space up to approximately 50% compared with conventionalswitchbays is achieved because of the compact construction of the movable circuitbreaker.

• The application as an indoor switchbay is possible.

• Short installation time needed at the construction site because of the pre-assembling atfactory.

• Short terms of delivery because of standardised design as well as using standard typetested components.

• Because of standard components like circuit breaker 3 AP1 FG / FI no special educationfor the local staff is necessary

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5 Technical data

Rated Voltage: 145 kV

Rated lightning impulse withstand voltage: 650 kV

Rated current: 1600 A

Short circuit current 40 kA, 3 s

Rated peak withstand current: 108 kA

Auxiliary voltage (Heater): 230 V AC, single phase

Control voltage: 110 V DC (others on request)Drive unit: 400/230 V AC

Creepage distance: 25 mm / kV

Max. Altitude < 1000 m

Ambient temperature range: -25°C / + 40°C

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6 Simover C module description

Each module of the movable Circuit breaker “SimoverC” consists of:

Section Quantity Description

6.1 1 pc. 145 kV Circuit Breaker 3AP1FI-145 kV with 1 springoperating mechanism and suitable for single andthree phase autoreclosing

6.2 3 pcs Current transformere.g Trench, IOSK 145 or similar

6.3 1 set Ruhrtal Contactsystem

6.4 1 set Built-on earthing switch, motor or manual operated,manufacturer Ruhrtal

6.5 1 set Motive unit

6.6 1 pc Local control cubicle with all necessary equipment forthe electrical controlling and electrical interlocking.

1 set Position switches (magnetic)

3 pcs Post insulators C6-650

1 set Tubular Busbar conductors and connectors

1 set Steel structures and fixing material

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6.1 Circuit breaker

6.2 Current transformer

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6.3 Ruhrtal Contact system

6.4 Built-on Earthing switch mounted at instrument transformer(principle arrangement)

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6.5 Steel structure with motive unit and high voltage equipment

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6.6 Local control cubicle

6.7 Transportation vehicle

If required a transportation vehicle can beprovided.

The Circuit Breaker can be moved from the closedposition towards the open position and further tospot the CB on the support of the vehicle. After

moving the motive unit back to closed position theCB can be lowered and move away on the vehicle.The shut-down of the busbar is not required.

For moving a plain surfaced access way isdesirable. If there is gravel or another surface atemporary road way system (e.g. perforated steelpanels) can be used.

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7 Maintenance

All equipment is designed and manufactured for highest reliability with low-maintenance anda use under severe operating conditions.

The effort on maintenance depends on the locations of installation. In a clean environmentallows a perfect operation above several years. A high polluted location requires morefrequent maintenance work.

The maintenance schedule for normal environment conditions:

A B Maintenance service Interval

X General visual inspection of all components 2 years

X Functional test 2 years

X Tightening of bolts 2 years

X Greasing of all link joints of the motive unit 2 years1)

X Cleaning and degreasing of all insulators 2 years

X Cleaning and degreasing of main contacts system and newgreasing

2 years1)

X Cleaning and new greasing of spindles 2 year1)

X Draining of gear oil, cleaning acc. to manufacturerdescription and refilling

5 years1)

A – Checks B – Maintenance1) Maintenance intervals 2 years or 2000 operating cycles

For the Circuit breaker please consider the maintenance schedule of the manufacturer.

Simover C

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