Acceptance Test DZJ-6 Vacuum Oil Filter - Acceptance Test Device Technical Standard







































































Model



Parameter



Performance

DZJ-6

DZJ-25

DZJ-30

DZJ-50

DZJ-75

DZJ-100

DZJ-125

DZJ-150

DZJ-200

Working Capacity

Flow Rate L/min

6

25

30

50

75

100

125

150

200

Breakdown Voltage Kv

≥50

≥70

Working Vacuum Degree

-0.06—-0.096

Working Pressure (Mpa)

≤0.5

Working Noise (dB)

≤70

≤75

≤80

Water Content mg/L

≤100 (GB/T7600)

Gas Content %

≤0.3 (GB/T423)

Acid Value MgkOH/g

≤0.03 (GB/T264)

Demulsification min

≤60 (GB/T7605)

Mechanical Impurities %

None


Acceptance Test DZJ-6 Vacuum Oil Filter - Acceptance Test Device Main Applications



1. It can be used for on-site oil filtration and oil replenishment of various oil-immersed transformers, oil-immersed current and voltage transformers, and high-voltage low-oil circuit breakers.



2. It can be used for on-site hot oil circulation drying of the above equipment, especially effective for on-site hot oil circulation drying of oil-immersed current and voltage transformers and high-voltage low-oil circuit breakers.



3. It can be used for on-site vacuum oil filling and oil replenishment of sealed oil-immersed equipment, as well as vacuumizing the equipment.



4. It can also be used for regeneration and purification of slightly deteriorated transformer oil, bringing its performance up to the standard of qualified oil.



5. It can also be used in industries such as power plants, power stations, power companies, substation industry, metallurgy, petrochemical, machinery, transportation, and railways.



Operating Method:



Connect the oil inlet and outlet pipes, connect 380V, connect the safety ground wire, check that all circuits are safely connected and all oil circuit valves are open, and only after everything is ready proceed with the operation procedure. First start the cooling water pump, check that the water circuit circulation is normal, then jog the vacuum pump to ensure the oil in the vacuum pump operates normally, and then let the vacuum pump run continuously. When the vacuum gauge reaches the limit, open the oil inlet valve, and when the oil level is visible through the lower sight glass in the vacuum chamber, start the oil discharge pump switch to begin oil discharge and filtration of impurities, with normal oil circuit circulation. Turn on the heater switch to evaporate moisture from the oil. If the oil contains a lot of moisture, the oil foam in the vacuum chamber will rise; at this time, open the air release valve to control the appropriate vacuum degree. After the moisture decreases and the oil foam drops, close the air release valve to achieve the maximum vacuum. At this time, pay attention to the readings of all instruments. If the pressure gauge reading is greater than 0.3MPa, it indicates that the filter paper in the fine filter has absorbed a lot of impurities and needs to be replaced with new filter paper. After the work is completed, refer to the working principle, open the air release valve,