What is a frequency converter?
The inverter is a converter that converts the communication electricity with fixed voltage and frequency into the communication electricity with variable voltage and frequency, which is called the inverter. It is mainly used in the local demand for speed regulation, and its output not only changes the voltage but also changes the frequency together; The soft engine is actually a voltage regulator, which is used when the motor is started, and the output only changes the voltage, but does not change the frequency. Inverter manufacturers emphasize that inverters have all the functions of soft starters, but their prices are more expensive than soft starters, and the structure is more messy.
What is a soft starter?
The soft starter is connected in series between the power supply and the controlled motor, and the thyristor inside it is controlled by the microcomputer to trigger the conduction angle to complete the communication voltage regulation, so that the input voltage of the motor gradually rises from zero to the preset function until the start is completed, and the motor is given full voltage, that is, soft start, in the soft start process, the starting torque of the motor is gradually added, and the speed is gradually increased until the thyristor is fully conducted, and the motor works on the mechanical characteristics of the additional voltage, completes the smooth start, and decreases the starting current. Avoid initiating overcurrent tripping. When the motor reaches the extra revolution, the starting process is completed, providing additional voltage for the normal operation of the motor.
So, what is the main difference between an inverter and a soft engine?
The inverter is used in the local area where the demand is regulated, and the output of the inverter not only changes the voltage but also changes the frequency together.
The soft motor is actually a voltage regulator, which plays a maintenance role for the motor, and is used for the output of the soft motor when the motor is bucked and the output only changes the voltage but not the frequency.
The inverter has all the functions of a soft starter, but its structure is messy and the price is much more expensive than the soft starter.
The inverter is to control the electrical equipment through the frequency conditioning, and can regulate the speed and start, such as the inverter pump used in industry. The basic principle of soft engine is to change the resistance connected in series in the circuit to make the current from small to large, which is used to start the high-power motor, which is used to reduce the direct start of the high-power motor to the power grid to form a wave, or form some unimportant load unloading troubles.
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Repair and maintenance of Sunland inverter
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