Substation remote transmission SF6 density relay (WINFOSS-D6X) application

韦弗斯解决方案

应用案例

SF6安全保障专家

专注于SF6气体检测的专业化

135 85763546

Application of remote transmission SF6 density rel

SF6 circuit breaker is an important protection and control component in the power system, if the circuit breaker fails, it will cause great economic losses, to ensure the reliability of the circuit breaker operation, it is necessary to regularly monitor the indicators of the circuit breaker, especially the SF6 gas, must reach the relevant standards, so that the SF6 circuit breaker to maintain a good working condition for a long time. Therefore, a sulfur hexafluoride gas pressure density meter must be set for monitoring.

The verification of SF6 circuit breaker density table or density relay is to use the instrument to automatically convert the SF6 gas pressure value at 20 ° C, showing the density value under various temperatures and pressures, and compare it with the various pressures simulated by the instrument to observe the contact situation of the electrical contact, whether it can signal or lock the circuit breaker within the specified value of the low voltage. To judge the SF6 circuit breaker density meter or density relay is good or bad.

This time, the GIS equipment of Ya 'an Hanbi 220KV Substation adopts the remote transmission SF6 density relay produced by a company in Xi 'an. During the verification process of SF6 circuit breaker density table and density relay after running for a long time, it is found that the SF6 density relay of several circuit breakers is unqualified and the remote transmission data is unstable, which seriously threatens the safe operation of the equipment and even the system safety. Weavers recommends replacing the density relay with a density meter to improve operational reliability.