The types 79M and 79S relays are used to automatically reclose a circuit breaker one or more times after it has been tripped by its protective relay.
This relays are used in schemes to protect lines which are subject to temporary faults such as those caused by lightning, or tree branches which burn free leaving the line clear.
Why ABB?
- Long product life
- Ease of application
- Reliable protection
- High-quality design