Indoor combined sensors KEVCD
Electronic instrument transformers (Sensors) offer the current and voltage measurements for the protection and monitoring of medium voltage power systems up to 24 kV, 3200 A.
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 current sensor is based on the principle of the Rogowski-coil. The sensor consists of an air-core winding, immune of any risk of saturation as it has no ferromagnetic core. It is linear over the whole measuring range.
The voltage sensor is based on a resistive devider. Also this sensor is non-saturable and linear over the whole measuring range. In the combi sensors a coupling electrode is integrated in the same compact cast resin part.
Product scope
KEVCD A 80 - 1250 A, 6 - 24 kV
KEVCD B 1250 - 3200 A, 6 - 24 kV
Application
Primary and secondary air insulated switchgear (AIS),
Original Equipment Manufacturer (OEM)
Key benefits
- Design according to DIN standard
- Light weight
- Fast and easy design process
- High flexibility
- Minimize cost during operation
- Increase safety and reliability
Key features
- Up to 3200 A and 24 kV
- High accuracy up to 0.5
- Delivered with secondary cable and RJ45 connector
- High linearity
- Large dynamic range
- No ferroresonance