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sf6 density relay live calibration device

A technology of density relay and calibration device, applied in the direction of measuring device, circuit breaker test, instrument, etc., can solve the problem of heavy workload of density relay, and achieve the effect of reasonable structure, easy portability and convenient use.

Active Publication Date: 2015-11-18
STATE GRID SHANDONG ELECTRIC POWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At the same time due to the check SF 6 The density relay has a large workload, and it is necessary to develop a live calibration SF without disassembly 6 The special device of the density relay can shorten the working time, improve the work efficiency, and find the SF with abnormal fault in time. 6 Density relays are significant

Method used

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  • sf6 density relay live calibration device

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Experimental program
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Effect test

Embodiment Construction

[0014] Embodiments of the present invention are further described below in conjunction with accompanying drawings:

[0015] Such as figure 1 SF shown 6 Density relay electrification verification device, including inlet valve 1, regulating valve 3, standard meter 4 and outlet valve 5, the inlet valve 1, regulating valve 3, standard meter 4 and outlet valve 5 are sequentially connected through the inflation pipeline 2. Intake valve 1, regulating valve 3, standard meter 4 and outlet valve 5 are connected in sequence and arranged in the assembly box, the inlet of inlet valve 1, the outlet of outlet valve 5, the display surface of standard meter 4 and the adjustment of regulating valve 3 The openings are all set on the same plane of the assembly box. A quick self-sealing joint is installed at the inlet of the air inlet valve 1 and the outlet of the air outlet valve 5 . Standard Table 4 is the standard table for 0.25 level accuracy.

[0016] The verification process is as follow...

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Abstract

The invention relates to a live calibration device for an SF6 (sulfur hexafluoride) density relay. The live calibration device for the SF6 density relay comprises a gas inlet valve, an adjusting valve, a standard meter and a gas outlet valve, wherein the gas inlet valve, the adjusting valve, the standard meter and the gas outlet valve are sequentially connected through gas filling pipes. The live calibration device for the SF6 density relay has the advantages that the structure is reasonable, the device is convenient to use and carry and the accuracy of the SF6 density relay can be detected without disassembling the SF6 density relay.

Description

technical field [0001] The present invention relates to a kind of SF 6 Density relay live calibration device. Background technique [0002] SF 6 The gas density relay is to indicate SF 6 It is a detection device for the internal pressure of electrical equipment, and has the protective function of gas pressure inspection alarm and blocking contact action. The accuracy of its measurement and action is directly related to SF 6 The safe operation of electrical equipment must meet the requirements of relevant standards, so that SF 6 Electrical primary equipment maintains good operating conditions for a long time. [0003] SF 6 Density relay calibration work refers to calibration SF 6 The density relay compares the indication value of 0.6Mpa rated pressure, 0.52Mpa alarm pressure and 0.5Mpa blocking pressure with the analog standard pressure value to observe whether the indication value is correct and judge SF 6 The density relay indicates the accuracy and the contact actio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/327G01L27/00
Inventor 吴哲孙鹏崔天宝高鹏王涛王世儒王晔崔汉斌盖恒民马彬徐斌孙宏何慧君姜会玲郑元华
Owner STATE GRID SHANDONG ELECTRIC POWER