Hello,
Can anyone quick explain me this?
Here in attachment there are screens of big motor where double power wires were use from frequency drive to motor terminal , i just want to know why it because bigger amperage needed to flow ? And if this same motor were used for star - delta switch by time relay , the jumper from motor had to be removed if we don´t want blow up fuses . Why actually on this motor it is no problem and you can have jumper here , i see not really big difference as if you have star delta switched motor with jumper , but here you can´t have jumper here on U1,V1,W1 and U2,V2,W2.
Thanks
Can anyone quick explain me this?
Here in attachment there are screens of big motor where double power wires were use from frequency drive to motor terminal , i just want to know why it because bigger amperage needed to flow ? And if this same motor were used for star - delta switch by time relay , the jumper from motor had to be removed if we don´t want blow up fuses . Why actually on this motor it is no problem and you can have jumper here , i see not really big difference as if you have star delta switched motor with jumper , but here you can´t have jumper here on U1,V1,W1 and U2,V2,W2.
Thanks