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Indoor/outdoor current transformer ELK CT0

Current transformer type ELK without primary conductor is designed for installation in SF6 gas insulated switchgear (GIS) indoor or outdoor systems up to 145 kV.

Transformers ELK CT0 are designed as low-voltage current transformers 0.72/3kV, without built in primary conductor with possibility of reconnection on the secondary side.
Depending on the protection concept they can be arranged in front or behind of the circuit breaker’s interrupting unit. The primary sided insulation is provided by SF6-gas.
Current transformers can be manufactured according to any accuracy class defined by international standards:
IEC 61869-1, IEC 61869-2, IEC 60044-6 Protective types for transient performance, ANSI/IEEE C57.13.
Additional standards and regulations on request.

Product scope

Highest voltage for equipment............    0.72 kV
Primary current...................................   100 A - 4000 A

Key benefits  

  • One phase or three phase solution
  • Suitable for indoor or outdoor high voltage GIS systems
  • Ready to use design for ELK switchgears
  • For measuring and protection purpose

Key features

  • Possibility of 5 secondary windings
  • Tested according to the latest standards IEC 61869-1, IEC 61869-2
  • 8 variants available
  • Epoxy resin free

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