SiC for Relay Protection
The relevant HVR non-linear resistor depends on the setting voltage of the relay and the maximum secondary internal fault current.
In applications of high impedance relays an HVR non-linear resistor may be required to limit the current transformer secondary voltage to a safe level during a maximum internal fault condition.
The relevant HVR non-linear resistor depends on the setting voltage of the relay and the maximum secondary internal fault current.
Key features
- High performance
- Extended temperature range up to 200°C
- Higher energy rating than comparable SiC ceramics
- Higher continuous power rating
- Modular system
- Large variations of different mounting arrangements
- Highest flexibility
- Dimensions and electrical values can be modified to customer requirements
- Design service
- Design service including technical drawing to international standards
Applications
- Protection of the secondary fault over-current
- Restricted earth fault protection
Standard range
Table 1 Selection of HVR non linear Resistor for Relays on 1A Cts.
Table 2 Selection of HVR non linear Resistor for Relays on 1A Cts.
Other dimensions and electrical values are available on request.
Dimensions
