The scale of differential maintenance is the primary equipment of the differential current transformer on both sides of the transformer. The primary reaction is the phase to phase short circuit of the internal winding of the transformer, the...

The dry-type transformer can directly see the iron core and coil, while the oil immersed transformer can only see the transformer shell. The oil immersed transformer is insulated by insulating oil. The heat generated by the coil is brought t...

The insulation grade of transformer is not the concept of insulation strength, but the standard of allowable temperature rise, that is, the insulation grade refers to the heat-resistant grade of the insulating material used, which is divided...

500 KVA on column transformer is mainly composed of power transformer, outdoor high-voltage AC vacuum circuit breaker, outdoor high-voltage drop fuse, outdoor high-voltage zinc oxide arrester, low-voltage integrated distribution box (JP), ca...

1. Winding copper loss boring method: through the transformer winding, the power generation itself generates heat, heats the winding insulation, has small operation volume, fast temperature rise and saves time. The defect is that the workloa...

Check regularly to ensure that the transformer's explosion-proof membrane and safety relief valve are intact and prevent direct contact with air, which will increase the moisture in the transformer oil and deteriorate the insulation performa...

The automatic control of forced oil circulating air cooling oil immersed transformer is designed according to the following principles. When the load of the container drops to the specified value, the auxiliary cooler will cut off automatica...

The voltage of French medium voltage power grid is 20kV. Low voltage: 220V / 50Hz. Hengfengyou electric complies with ISO, Kema NF and en transformer standards and has provided customized services for oil immersed transformer cores and trans...