Not active product since 2009
The motor protection relay SPAC 320 C is designed to be used as a cubicle-oriented protection and local/remote control interface unit for one motor feeder. In addition to the protection, control and measurement functions, the relay is equipped with data communication properties needed for control of the switching devices of a motor feeder cubicle. Communication with higher-level substation control systems is carried out via a fibre-optic serial bus.
Scope
- Multifunction relay for the protection of circuit-breaker or contactor controlled a.c. motors
Product benefits
- Multi-functional protection functions
Product features
- Versatile multifunction relay for the protection of circuit-breaker or contactor controlled a.c. motors
- The relay can also be used for the protection of feeders and transformers
- Three-phase thermal overload protection
- High-set overcurrent protection with instantaneous or definite time operation
- Phase unbalance and single-phasing protection with inverse time characteristic
- Fast operating incorrect phase sequence protection
- Sensitive earth-fault protection with definite time characteristic
- Undercurrent protection with definite time characteristic
- Continuous self-supervision for maximum system reliability and availability
- Several selectable motor start-up supervision methods
- Configurable feeder level interlocking system for preventing unpermitted switching operations
- Continuous self-supervision for maximum system reliability and availability
- Member of the SPACOM product family and ABB’s Distribution Automation system