Antiexcitation actuator automatic reset device

Abstract

The device consists of anti-exciting actuator and automatic reset set. The anti-exciting actuator is composed of armature, permanent magnet, magnet yoke, winding and spring. The automatic reset set includes square shaft support, release support, release shaft, lock catch of support, lever and skim rod. Anti-exciting actuator 1 with electric release is moved to electromagnetic breaker and fixed for preventing its moving. Anti-exciting actuator is able to drive electromagnetic release shaft by using the skim rod. Anti-exciting actuator through lever can be reset by using rotating travel and acting force when square shaft support of breaker from on position to off position. The invention solves automatic reset of anti-exciting actuator, providing duplex protection for breaker in use for generator in small type naval vessels.

Description

technical field [0001] The invention relates to an automatic reset device for an anti-excitation actuator, more precisely an automatic reset device for an anti-excitation actuator of a molded case circuit breaker. Background technique [0002] The anti-excitation actuator is the actuator for the tripping action of the marine molded case circuit breaker, also known as the low-energy solenoid shunt release. Its working principle is shown in Figure 1. [0003] Under normal circumstances, the electronic release has no output, and the magnetic flux generated by the permanent magnet 5 of the anti-excitation actuator 1 flows through the yoke 2 and the armature 3, and the suction force generated just overcomes the force generated by the compression spring 4, so that the armature 3 is in the suction position. locked position in the closed state. When overloaded or short-circuited, the electronic release has an output, so that the coil 6 of the anti-excitation actuator 1 has a curre...

AI Technical Summary

Problems solved by technology

[0004] However, the device described in Figure 1 above is used in the plastic case circuit breaker for marine generator protection. Because the circuit breaker is a combination structure of electromagnetic transient and electronic release, the anti-excitation actuator 1 is not a driving electronic type. The tripping mechanism, but drives the electromagnetic type instantaneous tripping shaft 4 through the sliding rod 7 in Figure 2. (See Figure 2 for details) Due to the different structures of the lock and the jumper, it is impossible to use the handle 6 of the molded case circuit breaker for re-buckle operation Reset the de-excitation actuator action

Images