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Baoding Zhongyi Electrical Material Manufacturing Co., Ltd.

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What are the requirements for the operation and shutdown of dry transformers?

AddTime:2018-08-21 15:17:33   Views:     【 Big Mid Small 】   Print   Close

 (1) the newly installed baoding dry-type transformer must be subjected to impact test for 5 times at rated voltage and impact test for 3 times after overhaul.

 
(2) when baoding dry transformer is put into the cooler for operation, the cooler will run for a period (about 15min), and stop after the oil temperature is no longer rising. Stop the baoding dry type transformer when the operation stops.
 
(3) in the directly grounded neutral system at 110kV and above, when the baoding dry transformer is put into operation and shut down, the neutral point must be grounded before operation. After operation, the disconnection shall be determined according to regulations and requirements. The arc suppression coil connected to the neutral point of baoding dry type transformer should be withdrawn first and then put in. The neutral point of two baoding dry type transformers shall not be connected to a neutral bus of arc suppression coil at the same time.
 
(4) when the power is off, stop the load side switch first, and then the power side switch (when the power is on multiple sides, stop from low to high); First pull baoding dry - type transformer side brake, then pull bus side brake. Power supply operation is opposite.
 
(5) when the spare baoding dry type transformer is put into operation, the load shall be determined according to the actual position of the equipment and the indicator of the meter, so that the operation of baoding dry type transformer can be cut off. The dry type transformer on the diagonal and 3/2 connection, although the dry type transformer is out of power, the heavy gas and differential protection action of the dry type transformer in baoding still can cause the switch on the closed ring side to trip. The gas protection should be changed to the signal position or degassed according to the actual situation and field regulations.
 
(6) the baoding dry type transformer used in the station shall not be long-term parallel. The low-voltage side circulation can be cut by low-voltage blade, and the baoding dry transformer for no-load station can be cut by high-voltage blade.
 
 
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.

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