2HP/1.5kW VFD, Cheap price drives

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Product
2HP/1.5kW VFD, Cheap price drives
Posting date : Jul 25, 2016
Membership
Free Member Scince Jul 25, 2016
FOB Price
3000
Min. Order Quantity
5
Supply Abillity
500000
Port
Shenzhen
Payment Terms
T/T
Package
600*400*800
Keyword :
Category
Contact
kimmy Lee
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Product Detail
Company Info
 
Quick Detail
Place of Origin
China [CN]
Brand Name
VFDS
HS-CODE
8501-31
Package & Delivery Lead Time
Package
600*400*800
Delivery Lead Time
15 days
Detailed Description
Single phase VFD drive normally is used in 200V AC to 240V AC in low power applications, like small pumps. The AC motor's input need to be three phase as all of the drives are three phase output. In our factory, the 1 phase AC drives, from 0.4kW to 2.2kW.
 
1.5kw 2hp vfd 7a 220v single phase variable speed drive vsd drive inverter ac drive inverter with rs-485 communication interface 1.5kw 2hp 7a 220vac single phase variable frequency driver vsd vfd inverter New hy 2.2kw 220v 3hp variable frequency drive vfd inverter output 3 phase 400hz 10a Hot vfd single phase 220v in three phase out at2 frequency converter 750w 0.75kw 5a three phase moto speed controller inverter Vfd007b21a delta vfd-b inverter vfd ac driver 1 phase 220v 750w 1hp 5a 400hz new in box Hy inverter 3kw 220v 13a variable frequency drive vfd inverter 4hp output 3 phase Vfd single phase 1.5kw 220v variable frequency drive inverter output 1 phase vfd.
 
A VFD drive supplied from a 3 phase system will have a bank of rectifiers at the input feeding a capacitor bank. The capacitor bank serves two purposes --- to filter some of the input ripple from the rectifiers, and to absorb some energy during deceleration. Rectifier-capacitor input filters produce non-sinusoidal pulses of current in the input lines. This means the RMS input current is higher than if the same energy was transferred from a DC source. If you take a VFD drive designed for a 3 phase input and use it on a single phase system, then the diodes and the filter bank may be under sized. This is why you may need a 3 times larger VFD. It is not because of the DC to AC conversion electronics, but because of the input diodes and capacitors.
 
The major source of problems in the real world is conducted emissions and these are typically in the region of 20kHz to 10MHz. The source of the emissions is the output of the VFD which comprises 6 solid state switches that switch each output between the DC bus rails. These switches are typically high speed IGBTs which can switch in less than 100nS.The output waveform is a PWM waveform designed to create a sinusoidal current flow into the motor.

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