Socket type earth fault line breaker

Abstract

The invention relates to a socket ground fault line circuit breaker, in particular to a GFCI with fault indicating function, which comprises a shell, a reset key, a test key, a ground assembly, a power inputting connection assembly and a loaded connection assembly, a leakage signal detecting circuit, an alarming circuit and an electromagnetic tripping mechanism. The circuit breaker is equipped with an independent electromagnetic tripping coil, a reset coil and an electromagnetic reset mechanism, the circuit breaker is also equipped with a reset self-locking mechanism gangly controlled and relieved by the reset coil. The reset coil is in series connection with an electronic switch and a resistance-capacitance parallel circuit and is connected to the two ends of the commutated direct current source to form a reset control circuit to control the electromagnetic reset mechanism, and the circuit breaker is also equipped with a reset self-locking mechanism gangly controlled and relieved by a tripping iron core. By remote line-controlling or wireless remote controlling the open of the electronic switch, the socket ground fault line circuit breaker of the invention can communicate the power of the reset coil to actuate the electromagnetic reset mechanism, and the reset self-locking mechanism self-locks and stops the reset frame to finish reset process.

Description

technical field [0001] The invention relates to a socket-type ground fault circuit breaker (referred to as GFCI for short), especially a GFCI with a fault indication function. Background technique [0002] The existing common GFCI usually includes a base, an upper cover with a jack, a leakage signal detection circuit and an electromagnetic tripping mechanism controlled by the leakage signal detection circuit, a contact assembly, a grounding assembly, and a power input connection. components, load connection components, etc. Not only can the load be supplied with power through the socket on the upper cover, but also the load connected to it can be supplied with power through the load connection component. With the development of technology and the deepening of the people-oriented concept, the requirements for the safety of electrical appliances are getting higher and higher, and the product safety standards of various countries are also becoming stricter...

AI Technical Summary

Problems solved by technology

However, the current ground fault circuit breakers still have some deficiencies, such as: when reset, they all rely on manual external force to reset, which is not suitable for long-distance operation and cannot be remotely controlled; The contact resistance of small contacts is usually increased by increasing the pressure between the dynamic and static contacts, which in turn will require a larger tripping force to complete the tripping, resulting in insufficient tripping capability

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