Overcurrent and earth-fault relay VAMP 140
The combined overcurrent and earth fault relay VAMP 140 is a cost effective relay for overcurrent, short circuit and earth fault protection. The possibility to connect arc sensors to the relay adds a new dimension to the protection schemes.
Features
- Added speed and selectivity in the protection scheme is achieved by using the VAMP 140 as a fast busbar protection, using the reverse interlocking function.
- The last fifty events are stored in the memory of the relay. The event information includes time, fault current, pre-fault current, fault type and elapsed delay.
- 15 minutes average and maximum current values are available in the relay.
- Measured and calculated values can be connected to the freely scalable mA output.
Protection
- Three overcurrent stages
- Three earth-fault stages
- Phase unbalance stage
- Thermal overload stage
- Circuit Breaker Failure protection
- Trip circuit supervision
- Arc fault protection (option)
- Disturbance recorder