Method for detecting mechanical characteristics of circuit breaker operating mechanism and circuit breaker operating mechanism
A technology of operating mechanism and detection method, which is applied in the direction of circuit breaker testing, protective switch operation/release mechanism, etc., can solve the problems of complicated steps and high cost of testing mechanical characteristics of circuit breakers, and achieve the effect of saving testing costs
Active Publication Date: 2015-09-23
RENMIN ELECTRIC APPLIANCES GROUP
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Problems solved by technology
[0007] The problem to be solved by the present invention is the existing technical problem of high cost and complicated steps for detecting the mechanical characteristics of the circuit breaker, so as to provide a method that can detect the operating state of the operating mechanism through the handle operation of the operating mechanism, so as to determine whether the circuit breaker can Detection method of mechanical characteristics of circuit breaker operating mechanism with reliable closing
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[0028] The method for detecting the mechanical characteristics of the circuit breaker operating mechanism provided by the specific embodiment of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0029] In the detection method of the mechanical characteristics of the circuit breaker operating mechanism of the present invention, such as Figure 1-3 As shown, the operating mechanism includes a handle 11, an energy storage lever 19, a link mechanism, an energy storage spring 5, and an opening and closing actuator 1, wherein the handle 11 and the energy storage lever 19 are set in linkage with each other, and the link mechanism can be Driven by the energy storage lever 19, the energy storage spring 5 can be compressed by the connecting rod mechanism to drive the energy storage lever 19, and the opening and closing actuator 1 can realize the opening and closing under the drive of the connecting rod mechanism. The detection metho...
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A method for detecting mechanical characteristics of a circuit breaker operating mechanism comprises the steps of energy storage, switching-on and detection, wherein an energy storage lever acts to drive a connecting rod mechanism to act, so that an energy storage spring is in a compressed state to finish the energy storage; the energy storage spring drives the energy storage lever to act, the energy storage lever drives the connecting rod mechanism to act, the connecting rod mechanism drives a switching on and off execution part to act, so that a movable contact of a circuit breaker is in a switching-on state; an operating handle drives the energy storage lever to act so as to detect whether the connecting rod mechanism drives the switching on and off execution part to act or not, judge whether parts of the circuit breaker are assembled and installed in place or not and conveniently detect whether the circuit breaker is qualified or not. Accordingly, the detection cost is saved.
Description
technical field [0001] The invention relates to the technical field of circuit breaker detection, in particular to a method for detecting the mechanical characteristics of a circuit breaker operating mechanism by detecting the operating state of the operating mechanism by operating a handle of the operating mechanism so as to determine whether the circuit breaker can be reliably closed. Background technique [0002] The circuit breaker is one of the key equipment of the power system, and its operating status has a great influence on the reliability of the power system. In actual operation, the most serious mechanical failures of circuit breakers are refusal to operate and malfunction. Refusal to operate means that the circuit breaker does not act after the pull switch sends a trip or close signal when the relay protection and safety automatic device operates or in the operation process; When the closing signal is received, the circuit breaker automatically trips or closes. ...
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IPC IPC(8): H01H71/10G01R31/327
Inventor 朱家逵李贺明陈凯徐进包志舟付光
Owner RENMIN ELECTRIC APPLIANCES GROUP