250 VDC motor

  • Thread starter EEFinder
  • Start date
  • #1
13
0
A 250 VDC motor drawing 390 VDC!!!!
any one with any explanation?

Thanks.
 

Answers and Replies

  • #2
berkeman
Mentor
62,298
13,053
A 250 VDC motor drawing 390 VDC!!!!
any one with any explanation?

Thanks.

Motors do not "draw" voltage...
 
  • #3
13
0
Thanks for the reminder, I used the wrong word, and it is not current

the Voltage reading instead of being around 250VDC, it was around 390VDC
 
  • #4
Doug Huffman
Gold Member
805
111
Adjust the voltage regulator. Is the speed OK at 390VDC, motor speed at constant load is proportional to voltage.
 
  • #5
13
0
thanks for the replay,

and that's what baffled me, the speed looked unchanged!
 
  • #6
1,187
225
thanks for the replay,

and that's what baffled me, the speed looked unchanged!
What's going on with drawn current?
 
  • #7
jim hardy
Science Advisor
Gold Member
Dearly Missed
9,847
4,891
??? What is nature of supply? Is it capable of 390 volts ?

An analog meter that's set to AC volts scale will report high if connected to DC volts.
 
  • #8
13
0
Jim,
That was actually the case.
By the end of the day on Thursday one of the electrician reported the situation. when I checked it on Friday morning, as well as few other times during the day, it was right on the money. When reviewed the Situation with the electrician, he stated that he was not sure if his meter was sat on DC!!!
 

Related Threads on 250 VDC motor

Replies
5
Views
926
Replies
42
Views
3K
  • Last Post
Replies
3
Views
12K
  • Last Post
Replies
9
Views
4K
  • Last Post
Replies
8
Views
3K
  • Last Post
Replies
2
Views
3K
  • Last Post
Replies
8
Views
9K
  • Last Post
Replies
3
Views
20K
  • Last Post
Replies
2
Views
1K
  • Last Post
Replies
1
Views
2K
Top