News & Blog

• 07

  09
  2023
  Introduction of SF6 Density Relay Calibration Cycle and Operation

  In 35kV and higher voltage substations, SF6 gas density relays are installed on various substation equipment such as circuit breakers, combination devices, high-voltage switchgear, current transformer...
• 05

  09
  2023
  Zero Position Issue of Density Relay in Non-Operational State?

  SF6 Relay Zero Position Problem in Non-Operating State?When the density relay is installed and operating in equipment filled with SF6 gas, it is in an isochoric operating state. At this time, the dens...
• 01

  09
  2023
  The Necessity and Basic Principles of SF6 Density Relay Calibration

  The necessity of SF6 density relay calibrationSF6 switch is a widely used high-voltage electrical appliance in power systems.SF6 switch's reliable operation has become one of the most concerning i...
• 26

  08
  2023
  SF6 Gas Density Online Monitoring and Alarm System

  Most devices containing SF6 gas are installed in rooms, where the indoor ventilation rate is relatively slow. Once SF6 gas leaks, it will accumulate in the room and is not easily released. SF6 gas its...
• 23

  08
  2023
  SF6 Relay Calibration Instrument: Environmental and Functional Requirements

  SF6 relay environmental requirements for calibratorOperating temperature:-20℃～＋45℃Operating humidity:5%～95% relative humidityStorage temperature:-25℃～＋50℃Altitude:≤4000mSF6 relay functional requirements for calibrat...
• 21

  08
  2023
  Telecoms Sf6 Relay: Guardian of the Smart Grid's Security

  Under the promotion of the National Smart Grid Construction Plan, remote transmission SF6 relay has emerged as a guardian of the smart grid, serving as its security protector. This remote transmission...
• 17

  08
  2023
  A Discussion on the On-site Calibration Issues of SF6 Relays

  In order to ensure the safe and reliable operation of SF6 electrical equipment, it is necessary to monitor the density of SF6 gas in the SF6 gas equipment. The monitoring of SF6 gas density is achieve...