Medium Voltage SwitchgearThe Simoprime Logo

SIMOPRIME

Up to 17,k kV, Air Insulated

MCA is an official partner of SIEMENS (AG) MEDIUM VOLTAGE DIVISION for the local design, manufacture and assembly of SIMOPRIME Type Tested Assembly in accordance with IEC 62271-200. This agreement, in conjunction with our existing partnership licence for the manufacture of SIVACON LOW VOLTAGE Assembly, Type Tested to SANS-IEC 61439-2, provides MCA with the unique advantage to provide turn-key solutions for most applications. Our engineers have been trained by SIEMENS qualified personnel at their overseas facilities to ensure the highest level of technical competence for the local design and manufacture of these products. Our investment in the machinery and tooling provides the latest technology, accuracy and repeatability to meet the strict requirements needed to meet the latest IEC standards.

The circuit-breaker switch gear type SIMOPRIME is a factory-assembled type tested switch gear for indoor installation according to IEC 62271-200 and VDE 0671-200 Loss of service continuity Category LSC 28 Partition class PM Internal arc Classification IAC A FLR,/sc w 40 kA Arc duration 1 or 0,1 s Short time withstand current lk Up to 40 kA for 3s.

Simoprime-Cabinet

Medium Voltage Applications

We Supply:

  • Medium Voltage Assembly
  • Low Voltage Assembly
  • PLC / Scada
  • Power Factor Correction
  • UPS And Alternative Energy Solutions
  • Sheet Metal Fabrication
  • Plant Automation
  • Medium Voltage Drives and Motors
  • Low Voltage Drives And Motors

Design Features:

* All switching operations including emergency manual operations with high-voltage door closed

* Interlocking between high-voltage door and switching devices

* Rack-in, rack-out operations of the circuit-breaker truck with high-voltage door closed

* Metallic earth shutters and partitions, partition class: PM (metallic partition)

* Internal arc tested design up to 40 kA, 1 s, according to IEC 62271-200, VDE 0671-200

* Use of vacuum circuit-breakers

* Factory-assembled, type-tested switch gear according to IEC 62271-200

 * Type testing of the circuit-breaker inside the pane* Use of standard, world-wide available components

* Use of maintenance-free vacuum circuit-breakers

* Quality management according to DIN EN ISO 9001

* Design based on global best practice sharing and experience

* More than 300 000 air-insulated switch gear panels from Siemens in operation world-wide

* Use of metallic, earth shutters and partitions between the compartments ensures highest loss of service continuity of the switch gear (LSC2B according to IEC 622761-200) during maintenance

* Use of maintenance-free vacuum circuit-breakers

Benefits:

* Saves lives

* Peace of mind

* Increases Productivity

* Saves money

Design

LEGEND for panel design:

  1. Door of low-voltage compartment
  2. Opening for locking or unlocking the low-voltage compartment door
  3. Option: Capacitive voltage detecting system for feeder and busbar
  4. High-voltage door
  5. Inspection window for checking the switching-device truck
  6. Opening for locking or unlocking the high-voltage door
  7. Opening for mechanical charging of circuit-breaker closing spring
  8. Openings for manual operation (ON/OFF) of the circuit-breaker
  9. Inspection window for reading the indicators
  10. Door handle
  11. Openings for switching-device truck operation
  12. Opening for earthing-switch operation
  13. Pressure relief duct
  14. Busbars
  15. Bushings
  16. Post insulators
  17. Block-type current transformer
  18. Option: Make-proof earthing switch
  19. Cable sealing ends
  20. Option: Voltage transformer
  21. Earthing busbar
  22. Low-voltage plug connector
  23. Vacuum interrupters
  24. Switching-device truck

A.   Switching device compartment
B.   Busbar compartment
C.   Connection compartment
D.   Vacuum circuit-breaker truck
E.   Low-voltage compartment

Benefits Features
Saves Lives
  • All switching operations including emergency manual operations with high-voltage door closed
  • Interlocking between high-voltage door and switching devices
  • Rack-in, rack-out operations of the circuit-breaker truck with high-voltage door closed
  • Metallic earth shutters and partitions, partition class: PM (metallic partition)
  • Internal arc tested design up to 40 kA, 1 s, according to IEC 62271-200, VDE 0671-200
  • Use of vacuum circuit-breaker
Peace Of Mind
  • Factory-assembled, type-tested switch gear according to IEC 62271-200
  • Type testing of the circuit-breaker inside the panel
  • Use of standard, world-wide available components
  • Use of maintenance-free vacuum circuit-breakers
  • Quality management according to DIN EN ISO 9001
  • Design based on global best practice sharing and experience
  • More than 300 000 air-insulated switch gear panels from Siemens in operation world-wide
Increased Productivity
  • Use of metallic, earth shutters and partitions between the compartments ensures highest loss of service continuity of the switch gear (LSC2B according to IEC 622761-200) during maintenance
Saves Money
  • Use of maintenance-free vacuum circuit-breakers

Compartments, interlocks, operation

Switching-device compartment

  • All switching operations with high-voltage door closed.
  • Pressure relief upwards.
  • Panel powder-coated with epoxy resin. Shutter operating mechanisms separately for – Busbar compartment – Connection compartment.
  • Metallic, earthed shutters and partitions ensure partition class PM.
  • High-voltage door pressure resistant in the event of internal arcs in the panel.
  • Metallic ducts on the side for laying control cables.
  • Interlocking between high-voltage door and circuit-breaker truck ensures interlock-based access.
  • Option: Test sockets for capacitive voltage detecting system.
  • Switching-device compartment to accommodate components for implementing various panel versions with – Vacuum circuit-breaker with or without voltage transformers on the truck – Disconnector truck – Vacuum-contactor truck – Metering truck

Busbar compartment

  • Pressure relief upwards and through rear pressure relief duct.
  • Option: Busbar transverse partition between panels. Busbars made of flat copper, bolted from panel to panel. – For rated normal currents up to 3600 A. Option: Insulated busbars.
  • Bolted rear and top covers provide tool-based access. Option: Coupling electrode for capacitive voltage detecting system. Options: Possibility of installing the following components – Voltage transformers – Busbar earthing switch – Current transformers in the run of busbars

Connection compartment

  • Pressure relief upwards through rear pressure relief duct.
  • Suitable for connection of – Single-core XLPE cables up to max. 6 x 500 mm2 per phase – Three-core XLPE cables up to max.
  • 3 x 300 mm 2 per panel. – Bars made of flat copper with bushings in a floor cover or fully-insulated bars including floor cover Shutters to be opened separately to permit cable testing.
  • Earthing busbar.
  • Connection from front or rear. Option: Pressure- resistant floor cover.
  • Use of block-type current transformers.
  • Bolted rear covers of the connection compartment provide tool-based access for panels with connection from rear.
  • Interlocked high-voltage door and bolted partitions between connection compartment and switching-device compartment provide interlock- based and toolbased access for panels with connection from front.
  • Components at the panel connection (option).
  • Coupling electrode for capacitive voltage detecting System.
  • Voltage transformers – Cast-resin insulated – Max. 3 x 1-pole – Fixed-mounted, without primary fuses Make-proof earthing switches – With manual operating mechanism – In addition to standard interlocking of earthing switch/circuit-breaker truck, optionally lockable or with electromagnetic interlock.
  • Surge arresters or limiters – Surge arresters for protecting the switchgear against external overvoltages. – Surge limiters for protecting consumers against switching overvoltages.

Interlocks

  • Interlocking conditions are satisfied according to IEC 62271-200/VDE 0671-200. Earthing switch can only be operated with circuit-breaker truck in test position. Circuit-breaker truck can only be moved with circuit-breaker in “OPEN” and earthing switch “OPEN”. Mechanical coding on the circuit-breaker truck prevents insertion of similar circuit breaker trucks for lower rated normal currents into panels with higher rated normal currents.
  • Interlocking of high-voltage door against circuit-breaker truck. The high-voltage door can only be opened when the circuit- breaker truck is in test position. Option: Electromagnetic Interlocks.

Low-voltage compartment

  • For accommodation of all protection, control, measuring and metering equipment.
  • Partitioned safe-to-touch from the high-voltage part.
  • Low-voltage compartment can be removed, bus wires and control cables are plugged in. Option: Partition between panels.

Low-voltage cables

  • Control cables of the panel are flexible and have metallic Covers.
  • Connection of switching device truck and panel wiring to low-voltage compartment via 64-pole coded plug connectors.
  • Bus wires are pluggable from panel to panel.