mhanson
Member
- Location
- Redwood City, CA
- Occupation
- General Journeyman Electrician
Good Evening All,
How do I determine if my 30kva transformer has gon bad.?
ACME 30kva General Purpouse transformer 480v 3ph primary, 208/120v 3ph secondary (only Two phases are being used).
primary fuses are 60amp fast acting (two of which have blown)
I purchased Two new fuses to match the existing
I turned OFF the secondary fused disconnect to eliminate any possbile problems on the load side.
I installed the two new primary fuses and they blew imediately.
At the transformer I disconnected the three primary conductors and the three secondary conductors.
my Fluke DMM showes no resistance between H1, H2, & H3 I'm not sure what I should be seeing here.
another thought is I may have incorrect fuse type on the primary, FAST ACTING dosn't sound right to me for some reason.:?
any input would be appreciated.
Thank You
Michael Hanson
Journeyman Electrician
Redwood City, CA.
How do I determine if my 30kva transformer has gon bad.?
ACME 30kva General Purpouse transformer 480v 3ph primary, 208/120v 3ph secondary (only Two phases are being used).
primary fuses are 60amp fast acting (two of which have blown)
I purchased Two new fuses to match the existing
I turned OFF the secondary fused disconnect to eliminate any possbile problems on the load side.
I installed the two new primary fuses and they blew imediately.
At the transformer I disconnected the three primary conductors and the three secondary conductors.
my Fluke DMM showes no resistance between H1, H2, & H3 I'm not sure what I should be seeing here.
another thought is I may have incorrect fuse type on the primary, FAST ACTING dosn't sound right to me for some reason.:?
any input would be appreciated.
Thank You
Michael Hanson
Journeyman Electrician
Redwood City, CA.