Precautions for on-site filtration of transformer oil,transformer oil dehydrator plant
At the transformer installation site, some tips for transformer oil dehydrator process:
1).Fences and warning signs should be set up in the transformer installation and construction area.
2).Fireworks are strictly prohibited in the transformer construction area, and sodium carbonate dry powder fire extinguishers are provided on-site.
3).Before filtering oil, it is necessary to check that all equipment and components are reliably connected to the ground wire.
4).Detailed technical handover and safe handover should be done before construction. Operators should be familiar with equipment operation and construction procedures.
5).When the oil pipeline is connected, it must be tied firmly to prevent oil leakage and oil running.
6).During the filtration of transformer oil, the on-duty personnel should inspect the equipment status and oil system status, and make records. 7. When receiving the incoming oil, calculate the total amount of incoming oil, allocate the flushing oil and installation oil, try to avoid wasting oil, and ensure that the transformer is filled with oil at one time.
7).When receiving the incoming oil, calculate the total amount of incoming oil, allocate the flushing oil and installation oil, try to avoid wasting oil, and ensure that the transformer is filled with oil at one time.
8).Oil inspection is an important task. Since there is no better on-site inspection method at present, it can only rely on the experience of the on-site personnel to judge its visual inspection and smell. This work should be carried out by experienced workers.
9).In the process of transformer oil dehydrator plant, the inlet door of the oil storage tank should be sealed with a plastic sheet. The bottom of the installed moisture absorber should be filled with enough oil according to the scale line.
10).The oil temperature at the outlet of the oil filter should be at least 50°C, and the highest should not exceed 70°C.
11).Pay attention to the oil quality of the vacuum pump, and replace the vacuum pump oil in time.
12).Pay attention to observe the oil level of the oil accumulation window of the oil purifier machine, and stop the transformer oil dehydrator machine in time.
13).Pay attention to the pressure gauge on the top of the filter elements, and replace the filter in time.
14).When the oil pipe is not in use, it should be tightly sealed with plastic cloth immediately to prevent moisture and impurities from entering the pipe.
15).After filtering the oil in the oil storage tank, seal the outlets of the oil tank tightly with plastic cloth in time.
16).Before turn off the oil purification machine, first turn off the heater. In order to prevent the heater from burning empty and damage.
Analysis of Transformer Oil Filtration Procedure
Preparation
1.Connect hoses between the inlet valve of the oil filtration machine to the outlet port (usually at bottom) of the oil tank, the outlet valve of the purifier machine to the inlet port (usually at top) of the oil tank.
2.Open the drain valve of condenser, close the drain valve until the liquid in the condenser is drained.
3.Connect the power (3p, three-wire 380V/50Hz power supply and ground wire to the terminal block), and open circuit breakers. You will see the green power indicator light.
4.Turn on the vacuum pump, and check if the oil level of vacuum pump and roots pump is within the allowable range.
5.Set the operating parameters(heating temperature @65℃, running vacuum value @-0.08Mpa, etc)
Transformer Oil Filtration Procedure-Operation
1.Open the inlet valve, circulation valve.
2.Turn on the vacuum pump.
3.Pay attention to the foam level in the degassing chamber when the purifier is in operation early. When the foam level is higher than the center of the sight glass, the air valve should be partially opened until the foam level is below the sight glass. But with our current DVTP transformer oil filtration process machine with automatic de-foaming function, you don’t need to do this step.
4.Turn on the heaters as needed.
5.When the machine starts to cycle, the running part of the operation has already been completed. If the machine detects an abnormality, it will display an error message on the screen, and troubleshoot and solve the problem according to the information.
6.When filling oil from the oil tank, connect the oil pipe first, then use the high vacuum transformer oil filtration device to circulate the oil temperature, and clean the oil purifier itself. Next, flush the oil lines with hot oil. Finally, clean the inside of the tank. It is worth noting that the oil used for flushing should be stored separately and marked. Avoid confusion with transformer oil.
Stop the machine
1.Close the heater
2.Close the vacuum pump
3.Open the discharge pump for draining
4.Observe that the pointer of the vacuum gauge returns to 0Mpa, and close the air valve and the oil outlet valve.
5.Power off the device.
The above are the steps of the transformer oil filtration procedure. If you have any requirements, please feel free to contact us.
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