220V ac variable inverter
1. 220V ac variable inverter.
This series high-performance vector control inverter is based on the companys many years of design, production, sales experience, high-performance vector control inverter is based on the company's many years of design, production, sales experience, suitable for all kinds of industrial machinery, fan& water pump drive control and heavy industry such as medium frequency grinding.
2. Basic Parameters of 220V ac variable inverter.
3. Main features and application of the 220V ac variable inverter.
Products in duct design, hardware configuration, software functions, installation design has greatly improved the customer ease of use and environmental adaptability, function optimization, application is more flexible, more stable performance, greatly improve the product reliability.
4. Main parameters of 220V ac variable inverter.
5. Details of 220V ac variable inverter
6. Corner of Factory
7. OUR SERVICE:
the machine has broken down, please contact our company, the service engineer will instruct you how to judge the machine failure or solve the fault
Q1: Why is the three-phase four-wire leakage circuit breaker used in inverter frequently tripping?
A1: In the inverter control system, there are many occasions or extended before installing frequency converter using three phase four wire system leakage circuit breaker, the frequency converter operation, a frequency converter in the case of frequent tripping during normal use.Reason is because of the general inverter runtime contained in the output voltage harmonic component, so that the motor winding and shell, and the wire to the ground between parasitic capacitance, the parasitic capacitance through wires and earth, the earth and chassis, constitute the leakage current, when the leakage current is greater than the current value of residual current circuit breaker, leakage circuit breaker will move in the trip.Therefore, in the control system of using frequency converter, in case the above situation, need to replace the original residual current circuit breaker or setting up the current value of the residual
Q2. Why can't the "land" of the converter connect to the zero line?
A2: TT system (three phase four wire system) of the zero line access circuit, contains more harmonic and various clutter, sometimes there will be a few volts or even hundreds of volts, once the "to" connected to the zero line of frequency converter, could the harmonic and various clutter is introduced into the converter internal interference formation, affect the normal work frequency converter.Therefore, the general frequency converter should be independently grounded.
10. 220V ac variable inverterWirings diagram