VPS Vacuum Pump Unit is widely used in various types of large-scale transformer
installation and maintenance for high-efficiency vacuum drying and
vacuum oiling. Quick air pumping, energy consumption, LCD display,
mobile and flexible features. The leakage rate of the unit is less
than 1%, the vacuum system is equipped with anti-oil-back device
and phase sequence automatic commutation system to prevent the
vacuum pump from reversing.
VPS Vacuum Pump Unit adopts air-cooled German Leybold rotary vane
vacuum pump and roots pump, working vacuum is 50Pa and max working
vacuum up to 10 Pa in the running, the ultimate vacuum is 1-3Pa. It
has features of quick start, high pumping speed, stable
performance, easy to operate.
1. Applying for vacuum drying and vacuum measurement of
transformers, tap changers, auxiliary switches and other electrical
2. Cooling type: natural air-cooled. The vacuum pump exhaust port
is provided with device for condensing and collecting moisture.
3. The control system has the perfect protection and alarm
functions with phase sequence, phase, overvoltage, undervoltage,
leakage detection and protection of all faults are the
corresponding warning light prompt.
4. VPS Vacuum Pump Unit uses automatic control function, the roots
pump automatically starts.
5. System settings Oil level detection devices: oil and gas
separators, oil storage tanks and photoelectric switches on the
transformer and vacuum pump protection, to prevent the oil pumped
out by the vacuum pump. When the photoelectric switch detects the
oil is pumped to the oil-gas separator, the system forced shutdown,
suggesting that oil, troubleshooting, the system returned to
5. Vacuum pump with self-check valve, vacuum pump interlock, in the
power outage or vacuum pump stop automatically closed when the
check valve, in addition to insurance in the exhaust port is also
equipped with a vacuum solenoid valve, the vacuum or vacuum pump
stop solenoid valve closed , To prevent any situation when the
reverse vacuum pump oil into the GIS chamber, theoretically put an
end to a major accident.
6. Electronic vacuum gauge and McGregor vacuum gauge are installed
in the back of the total valve to facilitate the detection of the
vacuum transformer, McNair vacuum gauge with the corresponding
valve, do not have to shut.
7. Axial fan: rotary vane pump and Roots pump separation of water
vapor and light oil for cooling, collection and emissions, to
protect the vacuum pump oil from pollution, enhance the pumping
capacity of the vacuum pump to improve the working vacuum. No
increase in the pumping capacity of the case, whether it is oil or
vacuum unit vacuum machine work greatly improved.