Machine-translated by Google. Questions are authored in English.
Top

Discussion

With the pressure coil connected on the supply side of the current coil, the wattmeter includes in its reading

  • A.the loss in the current coil
  • B.the iron loss of the current coil former as well as the copper loss in its winding
  • C.neither loss
  • D.the loss in the pressure coil circuit

Answer: D

Here the pressure coil is across the supply and its current passes through the current coil, so the power it consumes is added. This connection is the better one when the load current is small and the voltage high, where the pressure coil loss is relatively less.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.