For monitoring and controlling the density of the protective gas SF6 in high voltage power equipment
Application:
1. Gas Insulated Switchgear (GIS)
2. Gas Insulated Lines (GIL)
3. SF6 circuit breakers
4. Gas insulated busbar systems
Features of hexafluoride SF6 gas density monitor
Automatic temperature compensation equipment
Precise calibration bimetal temperature compensation system, Qin Song solve the temperature problem, without considering the change of ambient temperature, directly from the density meter reading can determine whether the density of SF6 gas in the container is within the specified range
Double alarm and double lockout
Once the SF6 gas leakage occurs in the system, as the density of SF6 gas decreases, an alarm signal will be issued when the contact on the pointer (dynamic contact) contacts the contact on the set switch point PS1 (fixed contact); as the density continues to decrease, a blocking signal will be issued when the contact on the pointer contacts the contact on the set point PS2, automatically closing the circuit breaker switch so that it cannot work to prevent accidents from occurring.
Remote data reading
The product is applied to high-voltage electrical equipment (such as high-voltage circuit breaker, transformer, GIS, etc.) The instrument can realize on-site monitoring and remote control of SF6 gas density in high-voltage electrical equipment by outputting switch signal, 4~20mA standard current signal (or directly giving RS485 standard interface).
Technical parameter
Scale range:0-2.5bar
Accuracy : 1.5 grade (20℃) 2.5 grade (-40℃-60℃)
Joint thread:M24*1.5/M27*1.5 (Available on request)
Operating conditions: -40℃-60℃
relative humidity ≤95%RH
Degree of protection:IP67
Impact resistance: 300m/S²
Vibration resistance:20m/S²
Insulation strength:AC2000V/min 50/60Hz
Insulation resistance:≥100MΩ
Annual leakage rate:≤1X10-9bar.m3/s
Contact capacity:AC/DC250V 50VA/30W
Maximum working voltage: AC 380V