bdn2004
Electrical
- Jan 27, 2007
- 799
We have some large 200Hp motors that are presently started across the line on some fan motors. We're thinking of putting in some soft starters in place of these.
1) Does the size of the load wires affect the soft start? I understand there is impedance there...but does this make any difference to what soft starter we purchase?
2) The existing motors are fed with 1000kcmil AL cable, which we want to re-use. However the soft start we are looking has a maximum wire size of 500 kcmil. I'm guessing there is a way to lug this down, but I'm not familiar how to do it...any suggestions?
3) Any other issues with soft starts? BTW the motors do feed fans that are moving air and don't require lots of starting torque.
1) Does the size of the load wires affect the soft start? I understand there is impedance there...but does this make any difference to what soft starter we purchase?
2) The existing motors are fed with 1000kcmil AL cable, which we want to re-use. However the soft start we are looking has a maximum wire size of 500 kcmil. I'm guessing there is a way to lug this down, but I'm not familiar how to do it...any suggestions?
3) Any other issues with soft starts? BTW the motors do feed fans that are moving air and don't require lots of starting torque.