Can we run a motor with nominal voltage 230 V, whereas the VFD operated with 400 V incoming?
I have a motor with following ratings-
In Delta 230V, 4KW, 13.9amp, 1454rpm, 50 Hz
In Star 400V, 4KW, 7.9amp, 1453rpm, 50Hz
and Drive is ACS850-04-025A-5+J400, hence incoming supply is 400V.
I want to start the drive in Delta connection is it possible?
And if possible Is there some advantage to run the motor in Star?
For example better control in Star.
In Delta 230V, 4KW, 13.9amp, 1454rpm, 50 Hz
In Star 400V, 4KW, 7.9amp, 1453rpm, 50Hz
and Drive is ACS850-04-025A-5+J400, hence incoming supply is 400V.
I want to start the drive in Delta connection is it possible?
And if possible Is there some advantage to run the motor in Star?
For example better control in Star.
Asked 9 months ago
Voted best answer
4
Hi
the both voltage values of the motor are nominal, depending on the network that you will use.
You can connect the motor in DELTA to obtain the nominal torque of the motor in one most large range of speed, up to 87Hz.
You have to check with the manufacturer of the electric motor that the same is suitable for this type of use, not all motors withstand the connection delta.
Next in ACS850 you need to use scalar mode and write the correct parameter in group 99.
Hope this help you
the both voltage values of the motor are nominal, depending on the network that you will use.
You can connect the motor in DELTA to obtain the nominal torque of the motor in one most large range of speed, up to 87Hz.
You have to check with the manufacturer of the electric motor that the same is suitable for this type of use, not all motors withstand the connection delta.
Next in ACS850 you need to use scalar mode and write the correct parameter in group 99.
Hope this help you
by rup.phogat Rank: 263 on 10/29/2018 10:17:23 PM | Like (0) | Report
Better control in star because of 400 v are motor nominal volt.
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