Frequency Drive for 3 Phase 0.4kw AC Variable

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Product Description:

 ac variable frequency drive for 3 phase water pump and blower with best quality and price


Introduction of SVF-G7 Series High-performance Vector General-purpose Frequency Inverter



1. Voltage class: 380V


2. Range of power: 0.4KW~450KW


3. Stable and reliable Control Mode


(1) VF control: Multiple curve could been chosen, Linear V/F curve, 2.0 times power drop torque V/F curve, custom V/F percentage(can realize manual energy saving control), multipoint VF curve. This apply to the situation that one frequency inverter drives multiple motors, such as fan, water pump, engraving machine, injection molding machine etc.


(2) Open-loop vector control: Steady speed with high precision, wide range of speed governing, as the speed ratio is 1:200 and 180% rated torque could be output in 0.5Hz. Good dynamic performance.


Open-loop vector is suitable for high-Performance universal occasions such as machine tools, centrifuges, cranes and handling equipment, rolling mill and other loads.


(3) Torque control: Fast torque response,<20ms, precision torque: <5%, applied to winding, drawing and other occasions.



Technical Parameter


VFD Capacity

Input Voltage (V)

Power Capacity (KVA)

Input Current (A)

Output Current (A)

Adapter Motor(KW)


3 Phase 380V Range:-15%~20%






















Model Size


VFD Model






Installation Aperture  

Weight (Kg)















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Unless otherwise stated in the offer, the prices include packing in accordance with CHINSC’S customary standard of packing.


Frequency Drive for 3 Phase  0.4kw AC Variable

Frequency Drive for 3 Phase  0.4kw AC Variable

Frequency Drive for 3 Phase  0.4kw AC Variable


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Q:There is no inverter comes with simple PLC programming function
The PLC is programmed to handle digital and analog, the core of the entire control system. It can output the digital to the inverter, so that the inverter is reversing, you can output the analog to the inverter set speed, but also through the communication, direct control inverter
Q:What is the working principle of high voltage electrodes and frequency converters?
High-voltage inverter is the input power supply voltage above 3KV high-power inverter, the main voltage levels are 3000V, 3300V, 6000V, 6600V, 10000V and other voltage levels of high-voltage high-power inverter High voltage inverter from high - low - high; low - high; high - high points.
Q:380V motor addition to the inverter, but also how to change its speed?
Use the star connection to reduce the speed by changing the torque
Q:Three sets of batteries (540V) DC power supply U / f inverter.
It is estimated that the battery should be string - and - series connection method, and then rectifier part of the converter (which may also be caused by the switch) is actually a series of diodes in series, positive and negative after the reverse is actually the battery is Negative shorts, resulting in burning, as to burn only one of the group of a few cells, it should be string - and - string and that group, because the parallel to bear it double voltage.
Q:Laptop power adapter (no power supply, but indicator light)
With a multimeter to measure the power adapter output interface voltage, no voltage is the adapter problem; a voltage is a notebook problem, and then decide how to do it. The adapter interface is less likely to be bad, but it does not exclude motherboard interface or power control chip problems. The former 50 yuan can get, the latter need a few hundred dollars.
Q:Laptop power adapter repair how much money
Dell laptop warranty 36 months of hardware include: CPU, memory. Warranty 24 months of hardware include: motherboard, graphics card, LCD screen, hard drive, power adapter, keyboard, mouse module. Warranty 12 months of hardware include: LCD accessories, CD-ROM, DVD, CDR / W, floppy drive, Modem card, network card, camera and other functional modules and components. Battery warranty for 3 months. Random disc, random gift of micro-computer products such as warranty 3 months. The
Q:What is the difference between variable frequency motor and variable speed motor?
The variable frequency motor requirements are high, are special motor, so the general motor can not use the inverter to speed. According to the above formula, it can be seen that increasing the frequency, the motor speed will be faster, reduce the frequency of the motor speed is slow, variable frequency motor core is also a special material, because the ferromagnetic material There is a saturation period, to the saturation period, regardless of whether the motor current increases, the motor will not continue to increase the intensity of the magnetic field,
Q:The inverter flat rate transferred to 29, on the submersible pump to burn the coil ?!
1. submersible pumps are generally the problem, far away from the reflection voltage, the pump insulation breakdown, in particular, to better pump. 2. Distance away, the inverter and pump connection thicker. 3. Then on the output filter.
Q:90KW inverter start 90KW, 4-pole motor and 6-pole motor j What is the difference? The inverter can be used for it?
Three-phase AC induction motor, 4-pole speed is generally 1480 rpm, 6-pole speed was 980 rpm
Q:Can the four motors be tuned to 2900 rpm?
Can be used, there are problems you can consult Zhoukou City bearing mechanical and electrical companies, contact the online search Zhoukou City bearing mechanical and electrical companies can search to!

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