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Inverters
An inverter is a device that controls the rotational speed of a motor. Controlling the rotational speed of the motor leads to energy saving and CO2 reduction. There are two types of inverter control, V / f control and vector control. V / f control is a control method that keeps the ratio between the voltage output from the inverter and the frequency constant. A single unit can rotate the motors of multiple devices, and is used for fans, air conditioners, etc. with small starting torque and load fluctuation. Vector control is a control method that performs vector calculation of the current direction of the motor, and enables highly accurate operation with few errors. Used in machine tools, cranes, extruders, etc., which have a large starting torque and load fluctuations. Some devices have wire saving and space saving, and some devices have a built-in braking circuit and do not require the selection of a braking unit.
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FAQ Inverters
- Question: What are inverters used for?
- Answer: The inverter is an electrical device. used for changing direct current is alternating current by inverter make different devices that use AC voltage such as motors or fans can also be used by DC voltage. Examples of applications are used as a UPS (Uninterruptible power supply) or Used to control the speed of an AC electric motor, etc.
- Question: Why use an inverter?
- Answer: Due to inverter system can supply electricity for appliances and equipment steadily without ripple voltage. Therefore, it can greatly reduce the amount of electricity consumed. It also increases the stability of the system as well.
- Question: How to choose an inverter that is suitable for usage?
- Answer: 1. The power should be selected to suit a total load of all electrical equipment.
2. Select the type of inverter suitable for usage.
3. Choose inverters from brands that are reliable.
4. Choose a brand with a warranty. - Question: What are the precautions for using inverters?
- Answer: 1. The needs DC voltage of the inverter and the DC power supply should be consistent.
2. The maximum power of the inverter must be greater than the power required by the electrical appliances.
3. The positive and negative terminals must be connected correctly.
4. Should be installed in a ventilated place. It heats well and avoid the water.
5. The interval between two starts is not less than 5 seconds.
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