Type multi-purpose gas-pressure relay
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Type multi-purpose gas-pressure relay

Structure  

     The relay core is shown in Fig 1,While the transformer is working properly, the relay is usually filled  with transformer.  The floater drops as the engine oil, gases from the oil resolution will collect on the upper part if the container thrust pressing the oil level. the floating ball is  reducing  with the oil level and link age the  magnetic switch. If  the oil level descends because of oil leakage.  the  soggy   will be given all the same. If transformer has been seriously damaged,  there will come an oil flow in the  connecting  pipe shocking  the point  G also when the transformer oil`s temperature arrives 85ˇć,  it should set out the tripping operation signal.  The tripping operation circuit  is cut in, and then  all the power supply to the transformer is shut off.