Air circuit breaker service and repair
An air circuit breaker (ACB) is an electrical device used to provide overcurrent and short circuit protection for electric circuits over 800 amps to 10k amps. It is vital they are serviced to keep them in good repair.
Why do I need to service my air circuit breakers?
Many of these issues can be avoided by devising an appropriate service schedule that suits your needs.
To ensure your equipment operates reliably we recommend an appropriate maintenance plan. Each site and ACB is different. Therefore after a discussion with you we will create a service schedule that suits you and your site. The schedule depends on the environment your ACBs operate in, and how often they operate in. Too little use causes as much need for maintenance as excessive use.
An Equiptest service plan enables us to service your Air Circuit Breaker in situ if fixed, or if with-drawable to remove and work on it at our premises. During the service we disassemble certain elements of the ACB to allow inspection, lubrication, repair and testing. We have a range of specialised secondary injection equipment to enable us to test the operation of the ACBs electronic trip units and their parameters.
We also offer a complimentary service for your distribution and control panels. We recommend that the panels are cleaned inside and out to remove dirt and dust periodically. At the same time the switchgear connections can be checked and tightened and the supply and distribution busbar connections can be re-torqued.
We have seen many instances where dirt on busbars and loose connections can cause noise, excessive heat and ultimately system failure due to lack of maintenance.