0
$\begingroup$

what happens if starting arm of starter does not return to "OFF" position after a temporary supply failure?

$\endgroup$
  • $\begingroup$ It starts when the supply comes back on ... $\endgroup$ – Solar Mike May 23 at 7:38
  • $\begingroup$ @SolarMike are you serious $\endgroup$ – user19926 May 28 at 15:11
  • $\begingroup$ The dc starter adds resistance to armature winding to limit starting current. As Mike says, motor starts with current depending on position of starting arm. $\endgroup$ – StainlessSteelRat May 28 at 20:25
  • $\begingroup$ @StainlessSteelRat that is the point if position of starting arm is stuck to its position after a temporary power supply failure what would happen. Resistance offered by starter would be zero, ... Right? $\endgroup$ – user19926 May 29 at 4:06
  • $\begingroup$ Yes. The purpose of the dc starter is to limit starting current by inserting a resistance. If starter was locked in on position, motor would start as a shunt (compound, etc) motor. $\endgroup$ – StainlessSteelRat May 29 at 11:12

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy