Electrician Talk banner

1 - 4 of 4 Posts

·
Registered
Joined
·
259 Posts
Discussion Starter #1
Hi guys

If a motor gets connected in WYE and run in the WYE connection with a supply voltage of 380V, can the motor be damaged in any way ?

The motor specs is as following (380V 50HZ WYE - 660V 50HZ DELTA)
 

·
Bilge Rat
motors and controls.........
Joined
·
7,088 Posts
Those motor specs are wrong; you cannot have a higher voltage for the delta connection. Wye is always higher.

If the wye connection is for 660 volts (I strongly suspect it is), then running it on 380 will cause it to produce roughly 1/3 of its rated HP.

If the load is such that the FLA for the wye connection (Higher voltage) is not exceeded, it'll be ok.
 

·
Registered
Joined
·
259 Posts
Discussion Starter #3
Those motor specs are wrong; you cannot have a higher voltage for the delta connection. Wye is always higher.

If the wye connection is for 660 volts (I strongly suspect it is), then running it on 380 will cause it to produce roughly 1/3 of its rated HP.

If the load is such that the FLA for the wye connection (Higher voltage) is not exceeded, it'll be ok.

Sorry my bad I mixed up voltages.

so you mean the voltage is no problem as long as the current does not exceed the rated current
 
1 - 4 of 4 Posts
Top