2018-08-22

SF6 electrical products have been widely used in the power sector, industrial and mining enterprises, to promote the rapid development of the power industry. SF6 gas density relay is one of the key components of SF6 electrical switch. It is used to detect the change of SF6 gas density in SF6 electrical equipment body. Its performance directly affects the reliable and safe operation of SF6 electrical equipment. SF6 gas density relays installed in the field often have inflexibility or poor contact

2018-08-20

The high pressure of SF6 equipment will shorten the mechanical life of the circuit breaker, and may also cause SF6 gas liquefaction. Sulfur hexafluoride (SF6) is a good gas insulator, and its typical application is used as gas insulation in the high-voltage switchgear of the power supply system. Once sulfur hexafluoride gas encounters high heat, high temperature (such as: electric arc), it will produce by-products such as hydrogen fluoride and sulfur dioxide gas, which coexist with undeco

2018-08-20

When the SF6 pressure drops to the first alarm value, the density relay operates and sends out the "SF6 pressure is low" signal, which should be processed as follows: (1) Check the pressure gauge indication, check whether there is gas leakage, determine whether the signal is correct, SF6 gas serious leakage, such as feeling a stimulating smell, self-discomfort, should take measures to prevent poisoning.

2018-08-20

When the SF6 pressure drops to the first alarm value, the density relay operates and sends out the "SF6 pressure is low" signal, which should be processed as follows: (1) Check the pressure gauge indication, check whether there is gas leakage, determine whether the signal is correct, SF6 gas serious leakage, such as feeling a stimulating smell, self-discomfort, should take measures to prevent poisoning.

2018-08-20

The high pressure of SF6 equipment will shorten the mechanical life of the circuit breaker, and may also cause SF6 gas liquefaction. Sulfur hexafluoride (SF6) is a good gas insulator, and its typical application is used as gas insulation in the high-voltage switchgear of the power supply system. Once sulfur hexafluoride gas encounters high heat, high temperature (such as: electric arc), it will produce by-products such as hydrogen fluoride and sulfur dioxide gas, which coexist with undecomposed

2018-08-16

1. Industrial SF6 gas should be filled in a clean and dry cylinder, and it should be vacuumed and cleaned before filling to make it free of oil and water. 2, the volume of the gas cylinder is generally 40L, and the corresponding volume of the gas cylinder can be selected according to the needs of the user. 3. When the design pressure of the cylinder is 8.0MPa, the filling coefficient is not more than 1.17kg/L; When the design pressure of the cylinder is 12.5MPa, the filling coefficient is not