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Intelligent on-load gas exhaust device of transformer

A technology of exhaust device and transformer, which is applied in the direction of transformer/inductor circuit, valve device, signal device, etc., can solve the problems of high workload of personnel, potential safety hazards, low degree of automation of gas exhaust operation, etc., and achieve convenience, Solve the problem of starting and stopping and ensure the effect of service life

Active Publication Date: 2021-08-20
XINZHOU POWER SUPPLY COMPANY STATE GRID SHANXI ELECTRIC POWER
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Problems solved by technology

[0009] The present invention provides an intelligent on-load gas exhaust device for transformers in order to solve the technical problems that the automation degree of the current transformer gas exhaust operation is low, resulting in heavy workload and potential safety hazards.

Method used

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  • Intelligent on-load gas exhaust device of transformer
  • Intelligent on-load gas exhaust device of transformer
  • Intelligent on-load gas exhaust device of transformer

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Embodiment Construction

[0031] This device is a supporting device for the gas relay, mainly composed of the gas action module (CPU part), the gas relay deflation module and the light gas protection action module (output circuit area):

[0032] 1) According to the reason of transformer gas action in the past and the structure of the transformer, it can be seen that the probability of gas gas generation in the main transformer body is small, and the operation of the on-load tap-changer is relatively frequent, so the exhaust device should consider the discharge of gas on load as much as possible;

[0033] 2) The exhaust device of the gas relay is connected to the ground with a hard pipeline for exhaust, and the solenoid valve is oil-resistant;

[0034] 3) The loop controls the solenoid valve to start the exhaust, and the reasonable use of the timing of the time relay can ensure that the discharge is not mistaken;

[0035] 4) By setting the intermediate relay ZJ (K1, K2, K3), the light gas alarm of the o...

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Abstract

The invention relates to gas exhaust corollary equipment of a transformer relay, in particular to an intelligent on-load gas exhaust device of a transformer. The technical problems that the automation degree of current transformer gas exhaust operation is low, the workload of workers is large, and potential safety hazards exist are solved. The intelligent on-load gas exhaust device of a transformer comprises a power supply circuit, a CPU (Central Processing Unit), a digital display area, a watchdog circuit, a data storage area, an output circuit area and a signal acquisition circuit. The signal output end of the CPU is respectively connected with the digital display area, the watchdog circuit, the data storage area and the output circuit area; and the signal input end of the CPU is connected with the signal acquisition circuit. According to the invention, the matching problem of a light gas device alarm signal and an exhaust device is effectively solved; an original light gas alarm loop is adopted in design, manual and automatic gas discharging functions are set, and convenience of gas collection and discharging is achieved; and reasonable exhaust time is set and matched with a normally-closed contact of an electromagnetic valve, so that the starting and stopping problems of the electromagnetic valve are solved.

Description

technical field [0001] The invention relates to transformer relay gas exhaust supporting equipment, in particular to an intelligent on-load gas exhaust device for transformers. Background technique [0002] Power transformers, as equipment connected to networks of different voltage levels, are an extremely important part of the power system. The corresponding gas protection that it is equipped with can effectively reflect the internal faults of the transformer, and is the most commonly used method in transformer protection measures. In recent years, with the continuous expansion of the scale of the power system and the improvement of the voltage level, many large-capacity transformers have been added. Most of the gas relays of the transformers are designed to be installed on the upper part of the transformer body, which has brought the following problems to maintenance personnel: [0003] 1.1 Potential safety hazards caused by transformer exhaust operations. After the trans...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08B21/16G08B5/36F16K31/06H01F27/42
CPCG08B21/16G08B5/36F16K31/0675H01F27/42
Inventor 李钧张琰武张树峰刘海军
Owner XINZHOU POWER SUPPLY COMPANY STATE GRID SHANXI ELECTRIC POWER
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