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Device and method for measuring opening and closing speed of vacuum circuit breaker

A technology for vacuum circuit breakers and measuring devices, which is applied in the direction of measuring devices, circuit breaker testing, and measuring electrical variables, etc. It can solve problems such as sliding resistance or grating jitter, inaccurate measurement data, etc., and achieve the effect of highlighting substantive features

Inactive Publication Date: 2018-03-30
SHANDONG TAIKAI HIGH VOLTAGE SWITCH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method needs to be directly connected to the circuit breaker. The opening and closing of the circuit breaker will cause severe vibration due to the instantaneous release of spring energy. This vibration will cause the vibration of the sliding resistance or the grating, which will cause the measured data inaccurate

Method used

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  • Device and method for measuring opening and closing speed of vacuum circuit breaker
  • Device and method for measuring opening and closing speed of vacuum circuit breaker

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Embodiment Construction

[0018] attached figure 1 It is a specific embodiment of the present invention. The invention discloses a measuring device and method for opening and closing speed of a vacuum circuit breaker. bracket7. The sensor 4 is composed of a connecting rod 8, a shaft shoulder 9, a spring 10 and a limit nut 11. One end of the connecting rod 8 is provided with a shaft shoulder 9, and a spring 10 is provided between the shaft shoulder 9 and the support plate 6. , the spring 10 is sleeved on the connecting rod 8 , and the other end of the connecting rod 8 located on the support plate 6 is connected with a stop nut 11 . The vacuum circuit breaker 1 is provided with a movable guide rod 2 connected with its movable contact and linked to it, which is fixed on the arc extinguishing chamber support 7 by bolts. The movable guide rod 2 is connected with a transmission crank arm 3, and is The chamber bracket 7 can slide in a straight line; the transmission arm 3 is fixed on the arc extinguishing ...

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Abstract

The invention relates to a device and method for measuring the opening and closing speed of a vacuum circuit breaker. The device comprises a vacuum arc extinguishing chamber, a moving guide rod, a transmission crank arm, a sensor, a time measurement system, a support plate, an arc extinguishing chamber bracket and the like, wherein the vacuum circuit breaker is connected with the time measurementsystem in series to form a vacuum circuit breaker loop; the sensor is installed on the vacuum circuit breaker, and the sensor is connected with the time measurement system in series to form a sensor loop; and when the circuit breaker performs an opening-closing operation, the accurate opening-closing time of the circuit breaker can be obtained through using the on-off measurement time difference of the two loops. By adopting the technical scheme of the invention, the time spent by opening-closing of the vacuum circuit breaker is measured, the structure is simple, the measurement result is notaffected by vibration generated by opening-closing of the vacuum circuit breaker, and the measurement result is accurate.

Description

technical field [0001] The invention relates to the technical field of measuring the opening and closing speed of a vacuum circuit breaker, in particular to a measuring device and a measuring method for the opening and closing speed of a vacuum circuit breaker. Background technique [0002] Vacuum circuit breaker is a kind of electrical equipment widely used in the medium and high voltage electrical field. The making and breaking capacity is an important criterion for whether the vacuum circuit breaker meets the requirements. Therefore, the opening and closing speed of the vacuum circuit breaker is an important technical parameters. After the vacuum circuit breaker switchgear is installed, testing its speed can directly reflect its mechanical coordination, electrical coordination and performance. Therefore, the opening and closing speed has always been the design point of the vacuum circuit breaker. In order to improve the performance of the vacuum circuit breaker, the desi...

Claims

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Application Information

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IPC IPC(8): G01R31/327
CPCG01R31/3272
Inventor 肖培伟
Owner SHANDONG TAIKAI HIGH VOLTAGE SWITCH
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