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2020-04-27

Is flameproof needle transformer necessarily safe? It is very dangerous to do these two points well.

We know that pin transformers, usually called safety transformers, are mainly used to isolate electrical equipment from the grid. Usually, they are used in safety occasions, but is it safe to use pin transformers? Not necessarily, you must pay attention to the following two points, otherwise there is still a risk of electric shock. Therefore, the idea that "pin transformers must be safe" is wrong. It is said that the safety of pin transformers is only relative to other transformers, and there is no absolute safety. When using a pin transformer, everyone must pay attention to the above two points and do not relax their vigilance.

Is flameproof needle transformer necessarily safe? It is very dangerous to do these two points well.

2020-04-25

How to effectively avoid the interference of the pin transformer and make the audio amplifier obtain excellent sound effects?

The pin transformer will interfere with the amplifier through magnetic field, electromagnetic induction and circuit, and is a large source of interference for audio power amplifiers. Common interferences include magnetic flux leakage interference, mechanical noise interference and thermal noise interference. So, how to effectively avoid these interference, so that the audio amplifier to obtain excellent sound? Xiaobian will give you a detailed answer. Jingwei Electronics has many years of experience in manufacturing high-frequency and low-frequency transformers and current transformers for small household appliances, lamps, equipment, instruments, personal products and digital products, and has a group of excellent employees, and actively invests in the industry New technology, new technology research and development, production

How to effectively avoid the interference of the pin transformer and make the audio amplifier obtain excellent sound effects?

2020-04-23

Determination of Minimum Allowable Insulation Distance in Rice Cooker Transformer

Insulation price is an important part of transformer price. In 110 and 220kV high-voltage transformers, the price of insulation can reach 18-25% of the price of the entire transformer. If the insulation gap, the material and size of the insulation structure are not selected properly, these gaps are set too small, which may damage the transformer. If the gap is set larger, insulating materials and other materials will be greatly wasted, and the entire product will be improved. Price. In order to correctly select the structure, material, size and manufacturing technology of the insulation, and correctly determine the length of the effective insulation gap, it is necessary to understand the insulation of the rice cooker transformer during operation.

Determination of Minimum Allowable Insulation Distance in Rice Cooker Transformer

2020-04-21

The role of the birth of the rice cooker transformer in the development of production

In recent years, with the development of urban construction, power transformers installed in buildings, low-rise railways, airports and other places with high fire protection requirements require the use of oil-free equipment. In order to meet the fire requirements, non-oil-filled transformers came into being. Early working parts, such as windings and iron cores, were exposed to air. In order to solve the problem that the fiber insulation material of the transformer winding reduces the insulation level due to moisture absorption, the transformer winding should be immersed in novolac and dried. In order to further improve the insulation level of the rice cooker transformer and solve the heat dissipation problem in its work, the winding form needs to increase the distance between each layer and the number of winding turns as the air duct

The role of the birth of the rice cooker transformer in the development of production

2020-04-17

Electric rice cooker transformer | transformer high voltage winding mode analysis

The main body of the pulse voltage generator adopts the method of multi-stage parallel connection and series connection. Use different grounding methods or a series of resistors less than 500Ω in the non-test phase, and then ground; connect an inductor resistor in series in the test circuit. In the lightning impulse withstand voltage test of the rectifier rice cooker transformer produced by our company, in order to obtain a more ideal test waveform, the above method is used for debugging. Take the high voltage phase A test as an example. During the test, the four-stage series output of the main body of the pulse voltage generator is connected, and the main capacitance is 0.67 μF; the measured voltage divider ratio of the four-stage voltage divider is 1375. Phase A of the measured rice cooker transformer

Electric rice cooker transformer | transformer high voltage winding mode analysis

2020-04-15

Rice cooker transformer | has played a positive role in solving the summer peak electricity consumption

Rice cooker transformers are the main consumers of electricity. How to make a fuss about this is hopeful. According to statistics, the power consumed by the rice cooker transformer accounts for 10% of the entire power grid, which is a considerable number. We can imagine that if the country's annual power supply is 3.5 trillion kWh, the power consumed by the rice cooker transformer will reach 350 billion kWh. This is a remarkable number. If it is used in real life, it is equivalent to the electricity consumption of a prosperous big city for a year.

Rice cooker transformer | has played a positive role in solving the summer peak electricity consumption

2020-03-30

What are the advantages of pressure cooker transformer

A transformer is a device that uses the principle of electromagnetic induction to change the AC voltage. The main components are the primary coil, the secondary coil and the iron core (magnetic core). The main functions are: voltage conversion, current conversion, impedance conversion, isolation, voltage stabilization (magnetic saturation transformer), etc. It can be divided into: power transformers and special transformers (electric furnace transformers, rectifier transformers, power frequency test transformers, voltage regulators, mining transformers, audio transformers, intermediate frequency transformers, high frequency transformers, impact transformers, instrument transformers and electronic transformers), reactors, transformers, etc.). Let's talk about the pressure cooker transformer

What are the advantages of pressure cooker transformer

2020-03-27

How to prevent pressure cooker transformer explosion accident

Pressure cooker transformer explosion accidents occur frequently, because the transformer explosion process is a relatively slow development process, once the explosion, will cause casualties and huge economic losses. It can be said to be terrifying. Since the transformer is easier to operate during the explosion, it is a more important place. In order to prevent the explosion of the pressure cooker transformer, we must start with "prevention.

How to prevent pressure cooker transformer explosion accident

2020-03-16

Safety isolation transformer

The primary function of the safety isolation transformer is to completely insulate the primary side and the secondary side, and also isolate the circuit. Other companies use the high-frequency loss of their iron cores, and then suppress the high-frequency clutter into the control circuit.

Safety isolation transformer

2020-03-13

Matters needing attention in the installation of commercial electrical transformers?

Matters needing attention in the installation of commercial electrical transformers?
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Foshan Shunde District Jingwei Electronic Appliance Co., Ltd.

+86-0757-28888742

+86-0757-26623793

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