Promotional Buchholz relay, QJ series relay Shu transformer accessories factory direct

QJ-50 Buchholz relay relay manufacturers 丨 丨 丨 gas relay QJ series relay Buchholz relay (also known as gas relay) is a protective device used transformer within the transformer mounted between the oil conservator and tank pipes, the use of transformer internal fault leaving the oil or gas caused by the decomposition of surging oil flow, so that the relay contact is gas, turn on the specified control loop, and promptly issued a warning signal (light gas) or start the automatic removal of the transformer protection elements (heavy gas). Buchholz relay (also known as gas relay) is a protective device used transformer within the transformer mounted between the oil conservator and tank pipes, the use of transformer internal fault leaving the oil or gas caused by the decomposition of oil flow surge, the make gas relay contact action, turned specified control loops, and timely warning signals (light gas) or start the automatic removal of the transformer protection elements (heavy gas). Light reflected at the gas main or minor faults run up from the decomposition of gas oil Ruwa Si relay, pressure that the oil level drops, the relay open cup with falling oil, light gas Reed contacts connected to signal when the light gas within When excess gas, can relay the gas nozzle gas gas release. , Gas protection signal action, immediately inspect the transformer to identify action causes it because of the accumulation of air, oil lower, the secondary circuit of the transformer internal fault or cause of the Confederacy. If there is gas in the gas relay, it should record the amount of gas, observe the color and test whether the combustible gas, and oil and gas samples taken doing chromatographic analysis, off procedures and guidelines can be judged based on the nature of the failure of the transformer. Chromatography refers to gas collected qualitative and quantitative analysis by chromatography of its contained hydrogen, oxygen, carbon monoxide, carbon dioxide, methane, ethane, ethylene, acetylene and other gases, according to the component contained the names and contents accurately determine the confederation nature, trends, and severity. If the gas is a colorless gas in the relay, odorless noncombustible, chromatographic analysis to determine the air, the transformer can continue to run, and promptly eliminate intake defects. If a combustible gas within the gas relay and the oil dissolved gas chromatography analysis result is abnormal, it should determine whether the transformer outage comprehensive judgment. Operation of the transformer to do, down load ready, turn overhaul. 2, gas relay tripping, the fault can not identify the reasons for the elimination of the former transformer in operation. To identify the cause should consider the following factors, to make comprehensive judgments. (1) whether the shortness of breath or exhaust deficiencies; (2) protection and DC and other secondary circuit is normal; (3) whether the appearance of the transformer fault clearly reflected the nature of the anomaly; accumulate (4) Gas Gas relay Are flammable; chromatographic analysis (5) Gas Gas in Relay and oil dissolved gases; (6) the necessary electrical test results; action case (7) transformer other relay device.