Due to the different parts of baoding dry-type transformer, the nature of gas in gas relay, the amount of gas accumulation and the degree of speed are the gas produced by fault transformer. Different forms of overheating. Therefore, it is very important to judge the nature and severity of transformer faults. Transformer gas protection action is a kind of internal accident precursor, or itself is an internal accident. Therefore, special attention should be paid to the strong transmission, trial transmission and supervision of the operation of this type of transformer.
1. Treatment after light gas protection action: after the gas action sends out a signal, the sound signal shall be stopped first, and the amount of gas in the gas relay of baoding dry transformer shall be checked to determine the reason:
A. non-transformer fault causes. For example: air into the baoding dry transformer (after oil filtration); The oil level is lowered below the gas relay (float type gas relay) or sharply lower than the oil level (baffle type gas relay); Gas protection secondary circuit fault (such as gas relay junction box water, terminal row or secondary cable short circuit, etc.). If the action is determined to be caused by external reasons, the transformer can continue to operate after the signal is recovered;
B. Main transformer fault reasons. If it is not certain that the gas signal action of the plate rewinding machine is caused by external reasons, and no other abnormalities are found, the gas protection should be put into the trip circuit, while strengthening the monitoring of the transformer, and carefully observe its development and change.
2. Treatment after heavy gas protection action: in case of gas protection action tripping of baoding dry type transformer in operation or simultaneous action of gas signal and gas tripping, the possibility of internal fault of dry type transformer shall be considered first. Care should be taken with this transformer.
A. If the gas is combustible, it is likely to be caused by internal transformer faults. Such transformers shall not be allowed to be put into operation until they are checked and tested to be qualified.
B. If the gas is colorless, odorless and incombustible, the gas action is caused by the air separated from the oil. At this time, the plate rewinding machine can be judged as a non-transformer fault, and the transformer can continue to operate.
Baoding zhongyi electric material manufacturing co., ltd. is a professional transformer manufacturer in baoding transformer factory, with professional production equipment, lifting, tooling and testing equipment, established a perfect quality management system, product performance indicators have reached the standard.
The company's main products: baoding dry transformer, baoding box transformer, baoding oil-immersed transformer, baoding high and low voltage complete sets of equipment. I companies to follow "detail decides success or failure, honesty molded the future" of the enterprise purpose, adhere to "quality measuring market, seek development by innovation, to management for efficiency" business philosophy, to make my company's products are widely used in power plant, chemical, construction, mining, metallurgy, rail transportation and other industries, to meet the needs of various users, my company rely on superior product quality, thoughtful service, won the trust of our customers.
