What are the operation steps for SF6 gas vacuum pumping and filling device with pumping rate ≥45L/s
SF6 gas vacuum pumping and filling device Technical specifications:
1. Vacuum pump 40m3/h (optional: 16 m3/h, 25 m3/h, 63 m3/h, etc.)
2. Digital vacuum indication; ultimate vacuum < 0.1 mbar
3. Leak rate < 1%
4. DILO connection fitting DN8 (for connecting SF6 gas refilling device)
5. Hose DN20/5m
6. Working voltage: 208~240V/380~460V/50Hz AC
7. Dimensions: 800mm * 500mm * 900mm
8. SF6 gas vacuum pumping and filling device pumping rate ≥45L/s weight: 60Kg
SF6 gas vacuum pumping and filling device operation steps:
1. Connect the device to the SF6 electrical equipment using the hose.
2. Press the green vacuum pumping button on the control panel to start the vacuum pumping function.
3. Slowly open the vacuum pump ball valve and the pipeline connection ball valve.
4. Evacuate the SF6 electrical equipment until a stable vacuum is reached.
Note: This device is an optional accessory. For modifying set values, refer to the "Digital Display Resistance Vacuum Gauge Manual".
Initial values: O1H=5000Pa; O1L=30Pa; O2H=200Pa; O2L=200Pa.
Refilling gas into SF6 electrical equipment
1. For SF6 gas vacuum pumping and filling device with pumping rate ≥45L/s, after ensuring the device connection pipeline is vacuumed, close the vacuum pump ball valve and the vacuum gauge valve.
2. Connect the SF6 gas cylinder to the SF6 refilling device.
3. Open the SF6 gas cylinder, adjust the pressure reducing valve to the required filling pressure, open the device connection pipeline valve, and refill the gas. When refilling gas, be sure to close the McLeod vacuum gauge valve for observation.
4. When the required filling pressure is reached, close the SF6 gas cylinder again, close all valves, and complete the refilling operation.
