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Indoor voltage sensors KEVA C

Electronic instrument transformers (Sensors) offer the voltage measurements for the protection and monitoring of medium voltage power systems up to 24 kV.

Sensors based on alternative principles have been introduced as successors to conventional instrument transformers in order to significantly reduce size, increase safety, and to provide greater rating standardization and a wider functionality range.

The voltage sensor is based on a resistive divider. This sensor is non-saturable and linear over the whole measuring range. The output signal is a voltage, which is proportional to the primary voltage.

The voltage sensors KEVA C have been designed as easy replacement of originally used insulating plugs in the cable T-connectors. Due to their compact size and optimized design sensors can be used for retrofit purposes as well as in new installations.  
 
Product scope
One sensor suitable for all applications up to 24 kV
Combined voltage accuracy class 0.5/3P
Secondary cable with connector type, shielded RJ-45 Cat. 6, or with ferrules for a screw connection

Application
Primary or Secondary distribution Gas-insulated Switchgear up to 24 kV where accurate voltage measurement is needed for advanced protection, fault detection and grid monitoring. Voltage measurement compatible with ABB Relion® family and with various Intelligent electronic devices from 3rd party vendors, suitable for new installation same as for retrofitting.

Key benefits

  • Easy and fast installation 
  • Small dimensions, light weight
  • Fast and easy design process
  • High flexibility
  • Minimize cost during operation
  • Increase safety and reliability

Key features

  • Up to 24 kV
  • High accuracy up to 0.5
  • IEC 61869 standard available
  • High linearity
  • Large dynamic range
  • No ferroresonance

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