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

2019-12-05

Wevers Xi 'an Metro Operation Branch 2019 SF6 gas detection alarm device maintenance project in main substation of Line 1, 2 and 3

2019-11-13

1, sulfur hexafluoride can only remain gaseous when the temperature is above 45 ° C, and it has the possibility of liquefaction under normal conditions of use, so sulfur hexafluoride can not be used at too low temperature and too low pressure. The actual pressure of circuit breaker decreases after sulfur hexafluoride liquefaction, and the switch cannot work normally due to insufficient insulation distance.

2019-10-03

SF6 infrared sensor WFS-S1-SYD sulfur hexafluoride sensor is an infrared gas sensor based on single light source double beam non-dispersive infrared measurement technology (NDIR), which is specially designed for SF6 leak detection.

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