MaraBrand of oil immersed transformerWhat is the role of description

The capacity and working voltage are different. The dry-type transformer is generally suitable for distribution equipment. The capacity is generally below 2000kVA and the working voltage is below 35KV which also ensures the rated voltage of 110kV; Oil immersed transformers are generally suitable for distribution equipment.

Fault judgment of power transformer

Mara.At rated power, the ratio of output power to input power of transformer is called the efficiency of transformer,MaraTransformer capacity of distribution room, i.e. & ETA; Is the efficiency of the transformer; P1 is the input power and P2 is the output power.

When the new oil filled by the power transformer and the oil sample that has just been considered are used, the oil sample can be used only after sufficient standing.

.High voltage fuse of transformer breaks one phase;

35kV and above & plusmn; No load of rated voltage; Part of the circuit breaker of the tap power switch is installed in the phenolic resin insulating paper cylinder,MaraDifference between power transformer and dry-type transformer, and the insulating paper cylinder is installed on the wooden frame. The actual operation rocker is connected with the dynamic circuit breaker of the tap power switch according to the wooden insulating rod. The on load tap off power switch is insulated from the ground by the insulating paper cylinder of the power switch itself and the insulating limit.

Turn off the gate valve (butterfly valve) of the left and right tablet computers of the heat pipe radiator to isolate the oil in the heat pipe radiator from the oil in the tank, so as to reduce the working pressure and leakage. After the leakage location is determined, appropriate surface treatment shall be carried out, and then Fushi blue raw materials shall be selected for sealing treatment.

The flange surface is uneven, the tightening bolts are loose, and the installation and processing process is wrong,MaraImpedance standard for dry type transformer, resulting in oil leakage.

How to maintain dry-type transformer?

Use fiber materials to seal the bolts to achieve the goal of controlling leakage. The other is to screw out the bolt (nut), wipe the Fushi blue film remover on the surface, and then tighten it after wiping the raw materials on the surface. After drying, the treatment goal can be achieved.

Discount.It will also produce many faults effectively deal with various faults of oil immersed transformer, make full use of the performance indicators and advantages of oil immersed transformer, and continuously improve the safety factor of oil immersed transformer. Ignition is a common fault of oil immersed transformer. The key fault of oil immersed transformer is short-circuit fault, and short-circuit fault is more general.

Oil immersed transformer

Dry type transformer company

When sampling in bulk gasoline barrels, samples shall be selected according to 5% of the number of gasoline barrels, but not less than 2 barrels. When sampling in batches of small and medium-sized pails or bottles, samples shall be taken according to 2% of the total number of barrels (bottles).

technical service.The oil in the machinery and equipment of the oil storage tank shall generally stand for more than 8h before sampling; it is not necessary to stand when sampling on the running power transformer.

The insulation between silicon steel sheets is damaged, resulting in overheating and melting of the iron core;

Oil leakage at looper flange

Mara.Oil immersed transformer operation

The no-load impulse closing working voltage shall not exceed 5% of the working voltage marked on the gear of the transformer, the closing frequency shall be 5 times, and the time interval of each closing shall not be less than 5min.

Oil leakage of heat pipe radiator