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Moment measuring device for circuit breaker body

A circuit breaker body and circuit breaker technology, applied in measuring devices, instruments, force/torque/power measuring instruments, etc., can solve problems such as long cycle time, complicated and difficult circuit breaker debugging

Active Publication Date: 2012-08-29
PINGGAO GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The long-term stable operation of the circuit breaker is very important, but the debugging of the characteristics of the circuit breaker body has been a complicated and difficult task for a long time. The assembly performance after debugging can only be verified by a series of tests, which takes a long time

Method used

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  • Moment measuring device for circuit breaker body
  • Moment measuring device for circuit breaker body
  • Moment measuring device for circuit breaker body

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Embodiment Construction

[0010] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0011] LW55-800 tank-type sulfur hexafluoride circuit breaker and ZF27-800(L) gas-insulated metal-enclosed switchgear are outdoor three-phase AC 50Hz ultra-high voltage power transmission equipment, which are used in power systems with a rated voltage of 750kV. Line control, measurement, protection and switching.

[0012] Such as figure 1 The moment measuring device of the 800kV circuit breaker body shown includes a screw 1, one end of the screw 1 is fixedly connected with a load cell 4, and a nut 2 is screwed on the screw 1 (the position of the nut 2 can be adjusted according to needs), and the nut 2 is coaxially connected with a The tubular main crank arm 10 is provided with a pivot pin 9, and the pivot pin 9 is hinged with the outer crank arm 3 of the circuit breaker. The load cell 4 is connected to a display device 14 through a conversion circuit output...

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Abstract

The invention relates to a moment measuring device for a circuit breaker body. The moment measuring device comprises a force transducer and a driving mechanism of which one end is used for being connected with an outer crank arm of a circuit breaker, wherein the other end of the driving mechanism is fixedly connected with the input end of the force transducer. The moment during the process of two limit positions of brake separating and closing of the qualified circuit breaker verified by tests is selected as a research object and relevant mechanical principles are combined to measure the moment of a main crank arm of the circuit breaker in the motion process and a standard characteristic curve is drawn for guiding subsequently-operated debugging work of a 800kV circuit breaker body and judging whether the assembly characteristics of the circuit breaker meet the work requirements or not, and thus the debugging time is shortened, the assembly and detection level of the circuit breaker are improved and the characteristics of the circuit breaker are improved.

Description

technical field [0001] The invention relates to a high-voltage switchgear, in particular to an 800kV GIS circuit breaker and a tank-type circuit breaker main body torque measuring device used in the high-voltage switchgear. Background technique [0002] The long-term stable operation of the circuit breaker is very important, but the debugging of the characteristics of the circuit breaker body has been a complicated and difficult task for a long time. The assembly performance after debugging can only be verified by a series of tests, which takes a long period. Therefore, there is now a need for an indirect way to measure the torque characteristics of the circuit breaker body. For the circuit breakers that have been verified by the test, measure the torque characteristics, and draw the circuit breaker opening and closing characteristic curves to compare the characteristics of the newly assembled circuit breaker. Preliminary Judging whether the assembly characteristics of the c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L5/00
Inventor 孟祥喜李俊辉董长利
Owner PINGGAO GRP
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