Not active product since 2007
The feeder protection relay SPAA 342 C is used for the protection of radial isolated neutral networks or resistively and/or resonant earthed networks. The feeder protection relay provides time overcurrent protection, shortcircuit protection, sensitive earth-fault protection and phase discontinuity protection.
Scope
- Comprehensive numerical feeder protection relay consisting of two multi-function protection relay modules and a flexible auto-reclose relay module
Product benefits
- Multi-functional protection functions
Product features:
- Overall scheme comprising time overcurrent protection, short-circuit protection, phase discontinuity protection, sensitive non-directional earth-fault protection, directional earth-fault protection, general earth-fault supervision, auto-reclose facilities, circuit-breaker failure protection and circuit-breaker condition monitoring
- Four heavy-duty relays for CB tripping and five current relays for signalling purposes
- Double-pole or single-pole circuit-breaker control
- Five configurable control inputs for the external control of the protection stages and the auto-reclose module
- Remote control of the circuit breaker via the auto-reclose module
- Local man-machine communication via push buttons and a digital display on the front panels of the protection relay modules
- Serial interface for connecting the relay to higher-level data acquisition systems, local or remote control systems or other host systems
- Local fault indication by LED indicators with memory functions and the digital display
- High immunity to electrical and electromagnetic interference
- Continuous self-supervision of relay hardware and software for enhanced system reliability and availability
- Auto-diagnostic fault indication to facilitate fault location and repair
- Powerful software support for parameterization of the relay, for reading measured and recorded values, events, etc., and for storing readings
- Member of the SPACOM product family, ABB’s Distribution Automation system and ABB’s Panorama concept
- CE marking according to the EC directive for EMC