Transformer oil cooler installation

Oil coolers for large-capacity transformers In recent years, with the development of the power industry, the capacity of power transformers has become larger and larger, and power transformers of more than 360 MVA have been produced. Transformer oil coolers are rigorously tested according to the company's professional standards before leaving the factory. After cleaning the two spiral channels, the air pressure test is performed. However, before installing the test on site, still pay attention to the cleaning of the two spiral channels, especially the transformer oil passage can not have impurities and moisture. Then, the oil channel is pressure tested with transformer oil, and the electrical strength of the oil sample is checked. After all the indicators are qualified, the oil cooler can be connected with the transformer body pipeline. The spiral plate heat exchanger http://oil cooler is connected to the transformer in the same way as the tubular heat exchanger: the hot oil is pumped out from the upper part of the transformer, enters the oil cooler, and then flows back to the transformer via the lower part of the mailbox to monitor the transformer oil. The safety circulation flows, a thermometer is installed at the oil passage inlet pipe, and a pressure gauge and a oil flow relay are installed at the oil inlet. According to the user's requirements, the thermometer and pressure gauge can be monitored synchronously on the site and in the control room. The user can make a request to the manufacturer when ordering. The protection device of the transformer oil water cooler, the paper bag machine http:// aims to remove the water that leaks into the oil when the cooler leaks water. The device has two parts: alarm and water removal. The alarm section consists of an oil-filled metal mesh, metal plates and alarms mounted on the bottom of the cooler. The water droplets in the oil are not easily deposited on the bottom through the metal mesh, and the metal mesh is connected to the metal plate, and the alarm is alarmed. The water removal part consists of a centrifugal separator, an oil-filled fence composed of several electrodes, and a ventilator. The water droplets are electrolyzed into a gas when they pass through the fence. Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn

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