Hydraulic Magnetic Circuit Breaker Operation

Circuit breaker and power distribution top questions and answers.

Hydraulic magnetic circuit breaker operation.

Hydraulic magnetic circuit breakers operate on the magnetic force produced by a load current flowing through a series connected solenoid coil that is wound around a hermetically sealed tube containing an iron core a spring and dampening fluid as shown in figure 1. A magnetic breaker trips when the magnetic field within a breaker increases due to increased current flow caused by the overload. Heat plays no part in this operation putting an end to heat induced nuisance tripping. Hydraulic magnetic circuit breakers key advantages for the rail environment the hydraulic magnetic design has a number of key advantages.

Magnetic hydraulic circuit breakers use the principle of magnetic effects of current to operate. Operation in the case of a short circuit is quite different. From 40ºc to 85ºc without re rating. A magnetic circuit breaker is a safety device designed to cut an electrical current in the event of a power surge thus protecting electrical equipment and circuitry from damage.

How circuit breakers combine thermal and magnetic protection. Widespread use of electronic equipment in world war ii such as radio and. The most advanced circuit breakers on the market are now the fastest to install. Here the magnetic flux produced by the coil is enough to attract the armature to the pole face and trip the breaker though the core has.

Ideal for harsh climates hydraulic magnetic circuit breakers offer more precise trips based on current even in extreme temperatures. During the early 1940s heinemann circuit breakers went to war. Overloaded circuits loose or faulty wiring and lightning can cause the circuit breaker to trip. Another cause of nuisance tripping transient.

Armature trip latch frame pole oil spring coil core tube figure 1. Hydraulic magnetic circuit breakers operate on the magnetic force produced by the load current flowing through a series connected solenoid coil which is wound around a hermetically sealed tube containing an iron core a spring and a dampening fluid. Although similar in operation to the standard magnetic circuit breaker the magnetic hydraulic circuit breaker differs as the latter has a hydraulic time delay mechanism. A guide to qo circuit breaker accessories.