Hi, everyone...
I have an issue regarding a DC motor with the following dataplate:
Armature: V = 460 V, I = 130 A
Field; V = 310 V, I = 1.55 A
Power: 54 kW
RPM: 50-2,400
The problem is when I measure the field current I get 1.9 A on one terminal and I get 1.26 A on the other terminal...
1) Shouldn't the current be the same on both terminals since it's a serial circuit?
2) How concerned should I be of the 1.9A measurement on one terminal if the motor is supposed to take 1.55A at most
Thanks in advance!
I have an issue regarding a DC motor with the following dataplate:
Armature: V = 460 V, I = 130 A
Field; V = 310 V, I = 1.55 A
Power: 54 kW
RPM: 50-2,400
The problem is when I measure the field current I get 1.9 A on one terminal and I get 1.26 A on the other terminal...
1) Shouldn't the current be the same on both terminals since it's a serial circuit?
2) How concerned should I be of the 1.9A measurement on one terminal if the motor is supposed to take 1.55A at most
Thanks in advance!