tyreInsulation heat resistance grade of oil immersed transformerWhat part of the indicator

announcer:hp122HP117294921 release time:2024-07-05 16:59:11

seal the flange

After tightening the loose bolts, and solve the bolts that are likely to leak, so as to achieve the goal of complete treatment. Tighten the loose bolts strictly according to the actual operation and processing technology.

Wiring mode of dry-type transformer:

tyre.First of all, although dry-type transformer has strong moisture resistance, it is generally open structure or very susceptible to moisture, especially the insulation level of dry-type transformer manufactured in China is low (lower flame retardant grade) Therefore, the dry-type transformer can obtain high stability only when the air humidity is below 70%. The dry-type transformer shall also be prevented from stopping operation for a long time to prevent serious damp. When the grounding resistance value is less than 1000 / V (operating voltage), and the trial operation shall be terminated.

With the rapid development of society and the continuous development trend of computers, the calculation of data in the whole process of oil immersed transformer wave has long had results. Only effective selection of calculation entity models and methods is needed, the accuracy of calculation conclusions can meet the needs of architectural design, and scientific and reasonable data method is selected, Not only can the current distribution of the oil immersed transformer be clearly defined in the development stage, but also the winding and other structures of the oil immersed transformer can be effectively arranged and distributed in a certain scope, which greatly facilitates the design scheme of the oil immersed transformer and ensures the stability of operation.

.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, the rated capacity of the transformer should be selected according to the power consumption, which is not suitable for too large or too small.

Power transformer factory

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


tyreInsulation heat resistance grade of oil immersed transformerWhat part of the indicator



Careless maintenance and insulation damage

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

Operation of oil immersed transformer

Inspection items.In relay protection dry-type transformer, the disconnection of the fault point is related to each other. In a word,tyreTransformer power capacitance, if there is any problem at a certain point, it will affect the whole power circuit

The insulation distance between the winding and the iron yoke of power transformer is much larger than that between the windings, because the electric field between the winding and the iron yoke is far away and not as symmetrical as that between the windings. In the electric field in the middle of the winding, most of the cables are in phase with the insulating cylinder (plate) in the middle of the winding, that is, the disconnection component of the electric field is small.

Difference between dry-type transformer and oil immersed transformer:


tyreInsulation heat resistance grade of oil immersed transformerWhat part of the indicator



In relay protection dry-type transformer, the disconnection of the fault point is related to each other. In a word, if there is any problem at a certain point, it will affect the whole power circuit

Quality recommendation.The raw materials of Fushi blue can be used for bonding, the metal shell can also be bonded at the same time to achieve the purpose of leakage treatment.

The common dry-type transformer is an important electrical equipment, and the voltage is constantly regulated. However, because of certain necessity, the dry-type transformer will also boost voltage,tyreWorking principle of power transformer, and the whole process of boosting voltage is very complex, and there are many principles.

What is the reason for the shutdown of power transformer?

tyre.Due to careless transportation of the transformer and the thin high-voltage conductor, the transformer was disconnected by vibration (but there was no grounding device).

Connection group structure of dry-type transformer

What is the wiring mode of dry-type transformer?