2020-06-04

The density of SF6 gas is indirectly expressed by the pressure value of SF6 gas after temperature compensation. SF6 density relay works under the rated pressure, when the ambient temperature changes, the pressure of SF6 gas also changes, and the temperature compensation device inside the density relay automatically compensates its changed pressure, so that its pressure does not change with the temperature change.

2019-12-11

With the rapid development of China's power industry, SF6 technology has been applied more and more widely. SF6 gas is an ideal insulating and arc extinguishing medium because of its inherent characteristics. However, its micro-water content will have a direct impact on the operation of equipment, the safety of personnel and the reliability of the power grid. Therefore, the micro-water content monitoring of SF6 electrical equipment has always been an important part of equipment monitoring in rel

2019-12-11

Purpose and scope of application The purpose of this operation instruction is to test whether the performance of the circuit breaker SF6 gas quantitative leak detector meets the standard requirements 2. Reference standards "Electric Power Equipment handover and preventive experimental Procedures" State Grid Company DL/T596 GB 50150-2006 DL/T 846.6-2004 "High voltage test equipment general technical conditions Part 6: sulfur hexafluoride gas leak detector" JJG 914-1996 "Sulfur hexa

2019-09-27

The SF6 gas leak monitoring and alarm system of the 220KV switch room of Shanghai SECCO Petrochemical Co., Ltd. was reformed and installed in place by Wevers Inspection in September 2019. SF6 gas leak monitoring and alarm system achieves the following functions:

2019-09-27

The SF6 gas density value indicated by the pointer on the SF6 density relay dial is expressed by the pressure of SF6 gas after temperature compensation, that is, the standard pressure value at 20 ° C. SF6 density relay works under the rated pressure. When the ambient temperature changes, the pressure of SF6 gas also changes. The temperature compensation unit inside the density relay corrects the changed pressure so that its pressure indication value remains unchanged. When SF6 gas leaks, the pre

2019-07-13

SF6 gas at room temperature, atmospheric pressure is a colorless, odorless, non-toxic and non-combustible gas, its chemical properties are very stable, at 20 ° C and 101325Pa density of 6.08 g/L, about 5 times the density of air, SF6 gas critical temperature of 45.6 ° C, compressed and liquefied, usually liquid into the cylinder transport.