Driving the development of the power industry, some common sense about inverter transformers

Many people must know about transformers, so do you know what an inverter transformer is? 1. The coil is wound in a multi-pie style with F-class or C-class paint, arranged tightly and evenly, with no insulation layer on the outside, and is aesthetically pleasing and has a good heat dissipation performance.

2. The seams of the core are welded by sub-arc welding. After the coil and core are assembled into one, they undergo pre-baking → vacuum impregnation → thermal baking and curing. This process makes the coil and core of the transformer firmly combined, which not only greatly reduces the It makes less noise during operation and has an extremely high heat resistance level.

3. The exposed parts are all treated with anti-corrosion treatment, and the lead-out terminals are wire terminals or copper bar terminals.

Definition & Composition:

The inverter converts DC power (battery, storage battery) into AC power (generally 220V, 50Hz sine wave). It consists of inverter bridge, control logic and filter circuit.

application:

Inverter transformers are widely used in air conditioners, computers, televisions, washing machines, range hoods, refrigerators, video recorders, massagers, fans, home theaters, electric grinding wheels, power tools, sewing machines, DVDs, VCDs, lighting, etc.

Precautions for use

1. DC voltage must be consistent

Each inverter transformer has an input DC voltage value, such as 12V, 24V, etc. It is required that the selected battery voltage must be consistent with the DC input voltage of the inverter transformer. For example, a 12V battery must be selected for the 12V inverter transformer.

2. The output power of the inverter transformer must be greater than the power used by the electrical appliance. Especially for electrical appliances with high power at startup, such as refrigerators and air conditioners, a larger margin must be left.

3. The positive and negative poles must be connected correctly. The DC voltage connected to the inverter transformer is marked with positive and negative poles. Red is the positive pole (+), black is the negative pole (—). The battery is also marked with positive and negative poles, red is the positive pole (+), and black is the negative pole (—). When connecting, the positive pole must be connected to the positive pole (red to red), and the negative pole to the negative pole. Connect negative (black connects black). The diameter of the connecting wire must be thick enough, and the length of the connecting wire must be reduced as much as possible.

4. It should be placed in a ventilated and dry place, be careful of rain, keep a distance of more than 20cm from surrounding objects, and stay away from flammable and explosive materials. Do not place or cover other items on the machine. The ambient temperature of use should not exceed 40℃. .

5. Charging and inverting cannot be performed at the same time. That is, the charging plug cannot be inserted into the electrical circuit of the inverter output during inversion.

6. The interval between two starts should be no less than 5 seconds (cut off the input power).

7. Please wipe with a dry cloth or anti-static cloth to keep the machine clean.

8. Before connecting the input and output of the machine, please first ground the shell of the machine correctly.

9. To avoid accidents, users are strictly prohibited from opening the chassis for operation and use.

10. When you suspect that the machine is faulty, please do not continue to operate and use it. You should cut off the input and output in time and have it inspected and repaired by qualified maintenance personnel or the company's special maintenance unit.

11. When connecting the battery, please make sure there are no other metal objects on your hands to avoid battery short circuit and burns to the human body. The above is the common knowledge about inverter transformers, I hope it can help you.