Hi all
I have attached the meager test result of a 315 kva step-down transformer (15kv/400v) transformer (the test is carried out without the oil ).I didn't want to lose the oil I just want to be sure that the transformer is ok before I put the oil in . Please tell me whether the transformer is good or bad to use. Please tell me what the expected values are for each test.
|
15kv side with ground(WITH THE BODY OF THE TRANSFORMER)) |
Meager result in (Mega OHMS) with 500v meager |
Meager result in (Mega OHMS) with 1000v meager |
|
U-g |
2.5 |
1 |
|
v-g |
2.5 |
1 |
|
w-g |
2.5 |
1 |
|
400V side with ground(WITH THE BODY OF THE TRANSFORMER) |
Meager result in (Mega OHMS) with 500v meager |
Meager result in (Mega OHMS) with 1000v meager |
|
U-g |
1.5 |
0.6 |
|
V-G |
1.5 |
0.6 |
|
W-g |
1.5 |
0.6 |
|
Phase to phase test(15kv side with the 400v side) |
Meager result in (Mega OHMS) with 500v meager |
Meager result in (Mega OHMS) with 1000v meager |
|
U-u |
2 |
0.9 |
|
V-v |
2 |
0.9 |
|
W-w |
2 |
0.9 |
With best regards
Transformer Test Results and the Expected Values
