The systems are used for thermal vacuum dehydration and degasification of electrical insulating and lubricating oils in order to withdraw free and soluble water, gas as well as for removal of particulates. They are applied while installation, repair and operation of oil-filled high-voltage equipment.
What it consists of
- system is mounted in a metallic frame 1;
- vacuum vessel 2;
- gear type pump 3;... View full description
The systems are used for thermal vacuum dehydration and degasification of electrical insulating and lubricating oils in order to withdraw free and soluble water, gas as well as for removal of particulates. They are applied while installation, repair and operation of oil-filled high-voltage equipment.
What it consists of
- system is mounted in a metallic frame 1;
- vacuum vessel 2;
- gear type pump 3;
- vacuum pump 4;
- unitized controller 5;
- pipeline;
- primary cartridge filter 6;
- fine cartridge filter 7.
The vacuum vessel is a cylindrical chamber which is placed in a casing. There are also electrical heaters to heat oil under processing in the casing. The vessel is heat-insulated outside. In the upper part of the chamber there an oil sparger is set. The vacuum vessel is connected with atmosphere through the moisture separating filter and throttle. Rate of exhaustion in the chamber is regulated by the throttle.
The gear type pumps are equipped with a bypass line which has taps and safety valves on it. The drive mechanism of each pump is an asynchronous three-phase motor with a squirrel cage rotor (2.2 KW and 1440 rpm).
The vacuum pump is intended for exhaustion in the chamber.
The vacuum pipeline is equipped with a siphon compensator, back-pressure valve, moisture separator, non-return valves and vacuum reduction valves.
Heater drive circuit is interlocked with pump drive circuit. In the control cabinet is located magnetic starter, heat regulator supporting set range temperature, indicator lamp.
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