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Gas density monitoring device

A technology of gas density and monitoring device, applied in the field of electric power, can solve the problems of unstable contact of gas density relay

Pending Publication Date: 2020-05-08
ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the embodiment of the present invention is to provide a gas density monitoring device, which can avoid the problem of unstable contacts of the gas density relay when electrical equipment vibrates

Method used

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Embodiment Construction

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0035] to combine figure 1 and figure 2 As shown, a gas density monitoring device in a preferred embodiment of the present invention includes a gas density relay 1, and the gas density relay 1 includes a sealed compensation gas chamber 1002, a bellows 1001, a signal adjustment mechanism 1004, a bracket 1007, at least one signal a generator 1003 and at least one magnet 1006;

[0036] The bellows 1001, the signal adjustment mechanism 1004, the bracket 1007, the ma...

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Abstract

The invention relates to the technical field of electric power, and discloses a gas density monitoring device. When air pressure outside a sealing compensation air chamber is reduced to cause elasticdeformation of a diaphragm capsule, the diaphragm capsule drives an actuating rod of a signal adjusting mechanism to move downwards so that a trigger piece of the signal adjusting mechanism moves downwards simultaneously, and a signal operating arm of a signal generator is driven to trigger a switch to be closed; when the air pressure outside the sealing compensation air chamber rises to cause elastic deformation of the diaphragm capsule, the diaphragm capsule drives the actuating rod of the signal adjusting mechanism to move upwards, and the trigger piece of the signal adjusting mechanism moves upwards simultaneously along with the actuating rod so as to loosen the signal operating arm so that a magnet can attract the signal operating arm and the switch is disconnected. The magnet can attract the signal operating arm to prevent the signal operating arm from swinging at will, and anti-vibration performance of the gas density relay is improved. The device further comprises a control module, a control valve, a pressure adjusting mechanism, a pressure sensor and a temperature sensor, contact signal action values of the gas density relay can be detected, and maintenance is avoided.

Description

technical field [0001] The invention relates to the field of electric power technology, in particular to a gas density monitoring device. Background technique [0002] At present, switchgear is an electrical device that has been widely used in the power system, and its reliable operation has become one of the important guarantees for the stable power supply of the power system. The gas density relay is an important device installed on the switchgear and used to monitor the change of gas density to ensure the insulation performance of the switchgear. If the gas density drops to the corresponding threshold value, an alarm or lockout will be generated to prevent vicious explosion accidents during the operation of the switchgear. Therefore, the quality of the gas density relay is directly related to whether the switchgear can operate normally. However, when the closing and opening operation of the switchgear generates vibration, it is easy to make the contact of the gas densit...

Claims

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Application Information

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IPC IPC(8): H01H35/34H01H35/26
CPCH01H35/34H01H35/26
Inventor 黄若栋高超杨芸周福升熊佳明陈喆歆王国利曾伟黄小泵
Owner ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD
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