The TIEPCO Medium Voltage Metalclad & Metalenclosed Switchgear conforms to the latest standard and is designed and manufactured utilizing the in house expertise and state of the art technology, fully taking into account the present and future power system requirement.

Characteristics

  • Metal-clad, air-insulated switchgear.
  • Suitable for medium voltage distribution.
  • Guaranteed arc-proof units.
  • Factory-tested for indoor installations.
  • Tested in accordance with the main international Standards.
  • Wide range of functional units available for all installation solutions.
  • Compartments segregated by metallic partitions.
  • Modular structure, easily built-up.
  • Highly effective use of space.
  • Start-up, maintenance and service operations can be carried out from the front.
  • Apparatus handling with the door closed.
  • Units can be installed against the wall.
  • Complete with mechanical safety interlocks.
  • Earthing switch with full making capacity.
  • Maximum service continuity guaranteed.
  • Main Busbar rating up to 4000A
  • Up to 40KA, indoor or outdoor installation,
  • High reliability as designed to the excessive temperature of the region.
  • Easy handling as control switches and monitoring equipment are installed at a height appropriate for user.
  • Flexibility of design, as cable entry can be from bottom.

Feature Details:

Rated voltage Ur (max) kV 7.2 17.5
Rated insulation voltage kV 7.2 17.5
Rated power frequency withstand voltage kV / 1min 20 38
Rated lightning impulse withstand voltage kV 60 95
Rated frequency Hz 60 60
Rated short-time withstand current Ik 1s, 2s, 3s kA

20

25

31.5

40

20

25

31.5

40
Peak current Ipk kA 100 100
Internal arc withstand current kA 1s 40 40
Main busbar rated current Ir (max) A 4000 4000
Feeder rated current Ir (max) A

630

1250

1600

2000

2500

3150

630

1250

1600

2000

2500

3150
Feeder rated current with forced ventilation A

3600

4000

3600

4000

Other important features:

Primary Electrical Parameters
Insulated Busbar YES
Loss of service continuity LSC 2B
Internal arc classified IAC A FLR
Partition class PM
Mechanical Parameters
Protection degree outer cover (IEC 60529) IP4X
Protection degree inner partitions (IEC 60529) IP20
Ambient temperature (IEC 60694) -5 °C to +40 °C
Painting color RAL 7035 / RAL 7038