Intelligent real-time on-line displaying and controlling leakage protector and control method thereof

Abstract

The invention relates to an intelligent real-time on-line displaying and controlling leakage protector which comprises a control panel, wherein a wire inlet interface and a wire outlet interface are arranged at the end part of the control panel; a zero sequence transducer, a shunt releaser, an operating mechanism and a controller are arranged in the control panel; a leakage current display screen is arranged on the control panel; a tripping mode and a tripping mode selecting unit are arranged in the controller; the tripping mode comprises a forcing non-tripping mode, a delayed tripping mode and a normal tripping mode; the tripping mode selecting unit is used for selecting the tripping mode according to the size of a leakage current detected by the zero sequence transducer and switching among the modes according to the change of the detected leakage current. The invention provides an intelligent real-time on-line displaying and controlling leakage protector which is used for solving the technical problems of a breaker in the prior art that an instantly increased leakage current is subjected to tripping, service life of equipment is influenced, working efficiency is reduced and treatment cannot be performed according to specific working conditions.

Description

technical field

[0001] The invention relates to a circuit breaker protection device, in particular to a real-time online display and control leakage intelligent protector. Background technique

[0002] Open circuit protection device refers to the switching device that can close, carry and break the current under normal circuit conditions, and can close, carry and break the current under abnormal circuit conditions (including short circuit conditions) within a specified time. In a common circuit, there is generally a leakage current, which is formed by the surrounding medium or insulating surface between electrically insulated metal parts, or between a live part and a grounded part, in the absence of a fault applied voltage. The current is called leakage current, also known as leakage current. Excessive leakage current not only reduces the efficiency of electric energy, but also causes danger to the external environment and easily leads to electric shock accidents, so the mo...

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