1, pressure filtration: insulating oil for a power transformer having insulation properties and thermal conductivity (national standard) at the installation site, the commonly used pressure filtration method of insulating oil (dry moisture removal) and purification (remove dirt) method.
2, open the valve 8 and 11, and then start the oil pump, and then open the valve 6 and 7. When stopping the oil, turn off 6 and 7, then stop the oil pump, then close the valves 8 and 11.
⑵正常工作时，压力表3*10 ~4*10 Pa的压力下是正常工作，如果杂质和油纸堵塞，压力增高，当压力达到6*10 Pa时，必须停止，更换滤纸。
The normal work, the pressure gauge 3*10 ~4*10 Pa under the pressure of work is normal, if the impurities and oil clogging, increased pressure, when the pressure reaches 6*10 Pa, must stop, replace the filter paper.
The filter before use in 80-90 DEG C oven dry for 24 hours, placed in a clean container.
The filter, cleaned once every 10~15 hours, 3-5 minutes at the start of the oil filter, an oil hole through the valve 10 to the waste oil re filtration, accumulation of oil filter oil within the oil system, back through the valve 9, again filtration. The above filter oil should be dried and dried for many times.
3 、 transformer oil filter:
When the voltage is higher than 10V, should not be charged by the oil filter. Because more bubbles are produced during the filtration process, the bubbles will lead to ionization at higher voltage, which will deteriorate the insulation performance of the oil and lead to internal discharge. When the oil is filtered, the gas released from the oil is periodically removed from the gas relay.
The charged oil filter, oil and oil filter should be grounded, to protect the personal safety of the staff, the staff should be professional, human care, wear with insulation products.
The operation: 4 and 5 diagonal valve interface, connect the pressure type oil filter button, the valve 4 extracted oil, 5 from the valve at the back to the tank, through a multi cycle filtration, until it meets the standard.