The nature of gas, the quantity of gas concentration and the degree of velocity in the gas relay in different parts of baoding dry type transformer are the gases produced by the fault transformer. Different forms of overheating. Therefore, it is very important to judge the nature and severity of transformer fault. The action of transformer gas protection is the precursor of an internal accident or an internal accident itself. Therefore, the transformer of this kind of strong, test, supervision operation, should be particularly careful, the cause of the accident has not been identified before the strong.
1. Treatment after light gas protection action: after the gas action sends a signal, stop the sound signal first, and check the amount of gas in the gas relay of dry transformer, and determine the reason:
A. Causes of non-transformer faults. For example, air invades the dry type transformer (after filtering oil); Oil level drops below gas relay (float gas relay) or oil level drops sharply (baffle gas relay); Failure of secondary circuit of gas protection (such as water inflow of junction box of gas relay, terminal row or short circuit of secondary cable, etc.) If the action is determined to be caused by external causes, the transformer can continue to operate after the signal is restored.
B. main transformer fault causes. If it is not certain that the roller is caused by the gas signal action due to external reasons, and no other abnormalities are found at the same time, the gas protection should be put into the tripping loop, and at the same time, the monitoring of the transformer should be strengthened to carefully observe its development and changes.
2. Treatment after the action of heavy gas protection: the possibility of internal fault of the dry type transformer is first considered when the action of gas protection trip occurs in the operating dry type transformer, or the simultaneous action of gas signal and gas trip occurs. The treatment of this kind of transformer should be very careful.
A. The gas is flammable, which may be caused by the internal fault of the transformer. For this kind of transformer, it is not allowed to be put into operation before it is checked and tested.
B. The concentrated gas is five-color, odorless and non-combustible, so the reason for the gas action is caused by the air separated from the oil. At this point, it can be judged that the plate roller is a non-transformer fault cause and the transformer can continue to operate.
Baoding zhongyi electric material manufacturing co., LTD is a professional manufacturer of transformer for baoding transformer factory. It has professional production equipment, hoisting, tooling and testing equipment, and has established a perfect quality management system.
Main products of the company: baoding dry type transformer, baoding box type 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.
