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Applying Drives to Single-Phase Input Application
Figure-2 Typical Single-Phase Configuration
8.2
Power(HP), Input Current and Output Current
When using a three-phase VFD with single-phase input, derating the drive’s output current
and horsepower will be necessary because of 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 beyond that with a three-phase supply
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. When
using a motor that is selected by the three-phase drive rating criteria when using single-
phase input, it may result in poor performance, premature drive failure. The selected drive
of single-phase current ratings must meet or exceed the motor current rating.
Содержание LSLV-S100 Series
Страница 1: ......
Страница 11: ...Preparing the Installation 2 ...
Страница 13: ...Preparing the Installation 4 5 5 22kW 3 Phase ...
Страница 16: ...Preparing the Installation 7 Front cover removed ...
Страница 45: ...Installing the Inverter 36 IP66 0 4 0 8kW 3 phase 1 5 2 2kW 3 phase ...
Страница 50: ...Installing the Inverter 41 0 4 22kW Standard I O Multiple I O ...
Страница 67: ...Installing the Inverter 58 ...
Страница 69: ...Learning to Perform Basic Operations 60 30 75kW Models ...
Страница 71: ...Learning to Perform Basic Operations 62 3 1 3 2 30 75kW Models Monitor mode display Parameter settings display ...
Страница 193: ...Table of Functions 184 ...
Страница 205: ...196 Troubleshooting ...
Страница 222: ...Technical Specification 213 7 3 External Dimensions 0 4 22kW Models 0 4 kW Single Phase 0 4 0 8 kW 3 Phase ...
Страница 228: ...Technical Specification 219 30 75kW Models 30 kW 3 Phase 37 45 kW 3 Phase ...
Страница 230: ...Technical Specification 221 IP66 Models 0 4 4 0kW NP Non PDS type ...
Страница 231: ...Technical Specification 222 0 4 4 0kW PDS type ...
Страница 233: ...Technical Specification 224 5 5 7 5kW NP Non PDS type ...
Страница 235: ...Technical Specification 226 11 0 22 0kW NP Non PDS type ...
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