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What is Air Circuit Breaker?
An Air Circuit Breaker (also known as an Air Blast Circuit Breaker or ACB) is an automatically operated electrical switch that uses air to protect an electrical circuit from damage caused by excess current from an overload or short circuit. Its primary function is to interrupt current flow after a fault is detected. When this happens, an arc will appear between the contacts that have broken the circuit. Air circuit breakers use compressed air to blow out the arc, or alternatively, the contacts are rapidly swung into a small sealed chamber, the escaping of the displaced air, thus blowing out the arc.
Trouble Shooting Guide For Air Circuit Breakers
👉BREAKER IS NOT CLOSING
👉BREAKER IS NOT TRIPPING WITH UNDERVOLTAGE OR SHUNT RELEASE
👉BREAKER IS NOT TRIPPING BY MANUAL TRIP PUSH BUTTON.
👉ACB IS NOT TRIPPING IN CASE OF OVERLOAD OR SHORT CIRCUIT FAULT
👉MAIN CONTACTS OF ONE OF THE POLE OF ACB NOT CLOSING
👉PITTING ON MAIN CONTACTS
👉EROSION ON ARCING CONTACTS
👉BREAKER IS NOT RACKING IN THE CRADLE FREELY
👉OVERHEATING
👉BREAKER IS NOT CHARGING WITH MOTOR
👉BREAKER IS NOT CLOSING REMOTELY
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electrical4tam...
5 окт 2024
