To handle electrical stresses, transformer oils are required to
have better dielectric strength. Lower residual water, gas and
contamination content must be maintained to reduce the speed of oil
ageing. All of these operations are performed using the transformer
oil filtration equipment
Power transformer oil filtration, dehydrating and degassing can be
performed individually or simultaneously based on the various
conditions of the mineral oil and customer requirements.
Contact oilpurifier at hotmail.com
Application
Vacuum dehydration, degreasing and solid particle filters are
function of transformer insulating oil equipment. (ZYD)
Performance:
Single pass at low temperature 50/55 degrees C
Moisture level from 50 ppm to < 5ppm by weight
Gas level < 1% by volume
The ZYD plant will generally consist of:
Feed pump ---- Draws transformer oil from either a bulk tank or
transformer, then feeds oil through a heat exchanger and electric
heater.
Vaccum Tank ---- Sprays the oil at high pressure into the vacuum
chamber where moisture and dissolved gases are flashed off.
Discharge pump --- Draws the oil from the vacuum chamber and pumps
it through the heat exchanger then delivers the oil back to the
transformer or storage tank as required.
Outlet oil regulating valve ---- adjusted from 0% to 100%. If the
output is varied a relief valve returns the surplus to the feed
pump suction.
Frame ---- The equipment is all located and packaged within a
quality fabricated frame.
Weatherproof housing and lift up doors ---- to provide weather
protection when operating externally (give operator weather
protection).
Rubber mountedZYD---- to a transport base (minimises vibration)
with provision for container mounts and forklift slots
Bypass heat exchanger (reduces energy consumption by over 30%) and
fast flush outlet pipes ----- with valve fittings
Extra filters ---- with surrounding valves
Moisture meters ----- installation at inlet and outlets
Inlet and outlet hose reels ----- installed only in large frames
Extra long frame (large frame) ----- to fit hose reels
Solenoid valves ---- on inlet and outlet for isolation and batch
control
Fuses, circuit breakers ----- provided for heater, pump and control
circuits.
Motors are protected ----- for thermal overload and loss of a
phase.
Phase rotation indication and selection fitted. PLC
Indication of ---- temperature, pressure, hours, vacuum and
filter dp included
An illuminated viewing window ------ provided on the vacuum
chamber.
High oil and foam level alarms ------ are fitted
Inlet and outlet sampling points ---- all provided
Vacuum tank and piping ---- are all stainless steel.
Indication of ---- temperature, pressure, hours, vacuum and
filter dp included
Relay controls and associated alarms ----- allow for unattended
operation after initial startup.
The control panel ----- located at the end of the unit, which is
illuminated for use at night or in poor lighting conditions.
One man operation ----- Manual overrides are fitted.