Trujillo10kV oil immersed distribution transformerCategory application analysis-World information network

What is the reason for the shutdown of power transformer?

The input and output three-phase power lines shall be connected to phase a, phase B and phase C respectively according to the color of yellow, green and red bus duct of transformer terminal board. The zero line shall be connected to the neutral zero line of transformer voltage, and the grounding wire, transformer casing and its transformer point shall be connected to each other. At ordinary times, the ground wire and zero wire are led out by the neutral wire of the transformer. (for example, the transformer box shall be matched with the ground wire mark of the shell and connected with each other). Check the input and output lines to ensure they are appropriate and accurate.

Trujillo.If the input of dry-type transformer is an alternating switching power supply, its output voltage is directly proportional to the coil turn ratio of the output input solenoid coil. If a rechargeable battery is used, because it is DC add a circuit in the input power supply circuit to change it into a continuously changing voltage. In that way, the alternating DC current can be obtained at the output end.

The flange surface is uneven, and the installation and processing process is wrong, so that the bolts are not tightened well, resulting in oil leakage.

.Caused by sand holes and cracks. For crack leakage,TrujilloS11 type oil immersed transformer, drilling stop hole is a good way to remove in-situ stress and prevent widening.

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).

Before and after sampling, clean the periphery of the sampling port with clean or hairless linen.

Trujillo10kV oil immersed distribution transformerCategory application analysis

The scientific research of power transformer oil is generally carried out according to the way of sampling. What are the common sampling methods and processes?

When the operating oil is mixed with different types of new oil or used for oil,TrujilloPrice of dry-type transformer 2500, in addition to the accurate measurement of the cold filter point of the mixed oil it is also necessary to carry out high and low temperature test and sludge test, and observe the sludge accumulation. The accumulation cannot be accessed. The results of the operation of the mixing template are not that the original oil is very poor, so it can be managed and used in a mixed manner.

Dry type transformer factory

supply.Outdoor sampling shall be carried out in sunny days or dry weather with low environmental humidity. During sampling,Trujillo200 KVA oil immersed transformer, it is necessary to resolutely prevent the invasion of dirt such as rain, snow, wind and sand.

The tail end of the high-voltage winding head and the middle tap are made of copper inserts and embedded parts, with good strength and stiffness, causing short circuit obstruction. If not handled properly, it will cause great damage.

How to make up oil for oil immersed transformer?

Trujillo.If the volume of power transformer is too small, the transformer will be overloaded for a long time and it is easy to destroy machinery and equipment. Therefore, which is not suitable for too large or too small.

Different diversion methods, dry-type transformers mostly use silica gel waterproof casing, while oil transformers mostly use porcelain waterproof casing;

The conductor insulation of power transformer is the main part of internal insulation. Some conductors should pass through the middle of electromagnetic coil, or between electromagnetic coil, iron yoke clamp and automobile oil tank wall. Therefore, it is necessary to ensure that this kind of conductor has sufficient insulation compressive strength, i.e. insulation spacing.