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455
Singl
e
Ph
as
e
Using a Single Phase Power Source
<Figure-2 Typical Single-Phase Configuration>
16.2
Power(HP), Input Current and Output Current
When using a three-phase VFD with single-phase input, deratin
g the drive’s output current and
horsepower will be necessary due to the increase in DC bus ripple voltage and current. In
addition, the input current through the remaining two phases on the diode bridge converter
will approximately double, creating another derating consideration for the VFD. Input current
harmonic distortion will increase, making the overall input power factor low.
Input current distortion over 100% is likely under single-phase conditions without a reactor.
Therefore, the reactor is always required for such applications.
Using a motor that is selected by the three-phase drive ratings with single-phase input may
result in poor performance and premature drive failure.
The selected drive of single-phase current ratings must meet or exceed the motor current
ratings as indicated in the following table.
Single-Phase Current Rating (200V/60Hz)*
[kW]
[HP]
Output Amp
Input Amp
HD [A]
ND [A]
HD [A]
ND [A]
0.75kW
1
2.6
4.1
4.3
6.8
1.5kW
2
4.0
6.0
6.9
10.6
2.2kW
3
6.2
8.2
11.2
14.9
3.7kW
5
8.1
12
14.9
21.3
Содержание SV-iS7 Series
Страница 17: ......
Страница 22: ...About the Product 5 1 2 2 Interior and Exterior View IP 54 Model Types Less than 22 kW 200 400 V ...
Страница 114: ...Peripheral Devices 97 Group 2 ...
Страница 115: ...Peripheral Devices 98 Group 3 ...
Страница 116: ...Peripheral Devices 99 Group 4 ...
Страница 153: ...Using the Keypad 136 The Parameter Initialization option is displayed again when the initialization is complete ...
Страница 159: ...Basic Functions 142 Code Description V1 Quantizing ...
Страница 465: ...Safety Funtion STO Safe Torque Off 448 14 2 1 Safety Function Wiring Diagram ...