Inductor coil

  • Thread starter XPTPCREWX
  • Start date
  • #1
101
0
Is it true that when a lower voltage is applied across an inductor it burns up the coil? If so can someone please explain why?
 

Answers and Replies

  • #2
vk6kro
Science Advisor
4,081
40
No that is not true.

What they might mean is that you can burn out a motor if you don't give it enough voltage to turn.

When this happens, the motor start coil can stay activated because there is no rotational force to disconnect it. These coils are only meant to operate for a few seconds, so they can overheat and burn out if left like this for too long.

Also, the motor itself will not develop any back EMF and so it could also draw excessive current even at the reduced voltage.

In some countries this low voltage situation is called a "brown-out" because lights glow brown or dull red due to the lack of voltage.

Refrigerator motors are very likely to get damaged this way.
 

Related Threads on Inductor coil

  • Last Post
Replies
3
Views
3K
  • Last Post
Replies
5
Views
2K
  • Last Post
Replies
3
Views
2K
Replies
35
Views
17K
Replies
11
Views
3K
  • Last Post
Replies
1
Views
4K
Replies
8
Views
4K
  • Last Post
Replies
4
Views
21K
  • Last Post
Replies
21
Views
5K
Top