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The manufacturing process of insulation board

ZTELEC GROUP | 20-04-22

Insulation board is a polymer material with resin as the main component. It has fluidity under certain temperature and pressure conditions, and can be molded into a geometric shape of a certain size and keep its vested shape unchanged after forming……

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FR-4 normal thickness and parameter classification

ZTELEC GROUP | 20-04-21

The commonly used copper thickness of FR4 copper clad laminate: 0.5 oz, 1 oz, 2 oz, and other copper thicknesses are also required, please consult the PCB manufacturer to determine. Commonly used thicknesses: 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.8mm, 1.0m……

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Oil-immersed transformer eddy current loss is reduced about 69%

ZTELEC GROUP | 20-04-15

The maximum eddy current density and maximum eddy current loss density of oil-immersed transformer are the highest, while the maximum eddy current density and maximum eddy current loss density of oil-immersed transformer occur at both ends of the w……

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The main function of isolation transformer

ZTELEC GROUP | 20-04-9

The main function of isolation transformer An isolation transformer refers to a transformer with electrical isolation between the input winding and the output winding. The isolation transformer is used to avoid accidentally touching the charged bod……

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How to prevent trouble of transformer

ZTELEC GROUP | 20-04-8

Transformers are extremely important electrical equipment in the power transmission and distribution system. Compared with other electrical equipment, the failure rate is extremely low, but once a failure occurs, it will cause serious losses to ind……

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How to dry treatment for transformers

ZTELEC GROUP | 20-04-7

Transformers are humid, especially in the summer, because the transformer is relatively powerful and the power intensity is often overloaded, so the transformer is constantly experiencing new problems. Moisture will cause the transformer to short-c……

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The differences between dry-type transformers and oil-immersed transformers

ZTELEC GROUP | 20-04-2

They are both power transformers and they all have iron cores for magnetic circuits and windings for circuits. The biggest difference is between dry-type transformers and oil-immersed transformers. That is to say, the cooling media of the two are d……

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How to prevent oil-immersed transformer explosion

ZTELEC GROUP | 20-03-31

Prevent the accident of oil-immersed transformer explosion Accidents of oil-immersed transformer explosions occur repeatedly. Because the explosion process of oil-immersed transformers is a relatively slow development process, once the explosion oc……

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What is the main reason influence transformer noise

ZTELEC GROUP | 20-03-27

I. Factors affecting no-load noise The main reason for the noise generated by the transformer core is that under the action of an alternating magnetic field, the size of the silicon steel sheet will change slightly. Since the change period of the m……

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The composition of three-phase transformer

ZTELEC GROUP | 20-03-26

The main principle of the three-phase dry-type transformer is electromagnetic induction, which uses the mutual induction between electromagnetics to transform voltage, current and impedance. Its main components are primary coils, secondary coils, a……

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How to improve the transformer quality

ZTELEC GROUP | 20-03-25

1. Improve the design requirements for the ability of the transformer to withstand short-circuit currents. The symmetrical short-circuit current (thermally stable current) that the distribution transformer bears should be considered as 1.1 times th……

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The classifications of power transformer

ZTELEC GROUP | 20-03-24

1. By function: Power transformers are divided into two categories: step-up transformers and step-down transformers. Step-down transformers are used in factory substations. The step-down transformer of the terminal substation is also called the dis……

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