Frankfurt on mainHow much is a 160 box transformerAnalysis of inspection process

Common problems of tap changer of power transformer

When the power transformer operates at full load, it needs a large reactive load. This reactive load shall be provided by the power supply and distribution system. If the transformer volume is too large, it will not only increase the initial project investment, but also make the transformer operate at full load or load for a long time, expand the proportion of full load loss, reduce power factor and increase Internet loss. Such operation is neither economic development nor scientific.

Frankfurt on main.A kind of power engineering equipment that converts the working voltage and current according to the basic law of magnetic effect of current. In the whole process of power transmission and transformation of power engineering, it is necessary to carry out voltage transformation and blood pressure reduction according to the transformer to reduce the loss of electromagnetic energy in the whole process. Therefore, the power consumption of the processing plant is all connected with 10kV switching power supply, which is converted into bottom voltage electromagnetic energy through transformer.

Operation of oil immersed transformer

.Oil leakage at looper flange

For no-load impulse closing of transformer, pay attention to the following matters:

Connection group structure of dry-type transformer

When oil samples are used,Frankfurt on mainHow much is a 400 KVA box transformer, the safety and fire safety technical specifications on the spot shall be strictly implemented.

Power saving analysis of transformer

Note: in the whole process of safety patrol inspection, the on-site operation and maintenance management staff must use temperature tester or thermal imager to carry out purposeful inspection on the transformer itself, terminal block and other accessories; The sound during the operation of the transformer is a symmetrical current sound. If the sound is found to be abnormal, significantly expanded,Frankfurt on mainWarranty period of oil immersed transformer, or there is local sound, the cause shall be found immediately and certain effective measures shall be taken. If necessary, the load can be reduced or the operation of the transformer can be stopped.

Discount.After the oil is drained, all anchor bolts of the automobile oil tank at the upper end of the detachable oil cover shall be tied with the lifting jack, and the lifting point shall be on the common earrings or bolts. If necessary, prevention and key are & ldquo; Prevention and Manipulation & rdquo; Is dominant.

The whole process of hanging the core of dry-type transformer is more critical, so as to promote the safety of dry-type transformer!

When the new oil filled by the power transformer and the oil sample that has just been considered are used the hanging core of dry-type transformer should be carried out according to the above matters, the oil sample can be used only after sufficient standing.

Good reputation.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 the delay time after power receiving shall not be less than 10min, China's energy-saving distribution transformer market is relatively scattered, coupled with the constraints of factors such as low threshold in the field, uneven companies, lack of evaluation and specifications, and inadequate technical innovation,Frankfurt on main1600KVA price of power transformer, resulting in slow marketing of energy-saving transformers.

Sound in case of phase failure

Frankfurt on main.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.

The time difference between different steps of three-phase power switch of switching power supply shall be less than 10ms, the closing shall be maintained by high-voltage arrester, and the neutral line of transformer shall be reliably grounded (it shall be grounded immediately).

When the transformer is put into operation, if the tap changer is not in time, a great & ldquo; Tweet & rdquo; The high-voltage fuse is broken when the noise is serious; If the tap changer is defective, it will cause mild & ldquo; Squeak & rdquo; Corona discharge sound, once the load increases, it is likely to burn the circuit breaker of the tap changer. In case of such situation, power off immediately for maintenance.