|
Infrastructure ::
Testing - For the Perfection... |
|
Quality Assurance
Department is well equipped with
the required infrastructure to
carryout the routine tests of
transformers of various ratings
ranging from 5 kVA to 10000 kVA
in the class up to 66 KV. The
tests include.
Factory tests includes,
but are not limited to, the
following :
-
Resistance measurement of
all windings.
-
Ratio, polarity and phase
sequence.
-
Polarity and phase relation
test
-
Test to determine no-load
losses at rated voltage and
frequency
-
Excitation current at rated
voltage and frequency
-
Impedance voltage and load
loss measurement
-
Induced potential tests of
insulating oil
-
No Load current and losses
at service voltage and
formal frequency
-
Load losses at rated current
and normal frequency
-
Insulation resistance
-
Induced over voltage
withstand test.
-
Separate source voltage
withstand test.
-
Unbalanced current
measurement
|
 |
Type Tests : |
1.
Short Circuit Test
2. Impulse Voltage Withstand
Test
3. Temperature Rise Test
4. Tan Delta Test
5.
Noise Level Measurement |
|
Standards Followed:
Oil
Cooled Transformer - IS 2026,
IEC 60076, ANSI C 57
Dry Type
Transformer - IS 11171, IEC 726,
ANSI C 12 01 |
|
|
|
|
|
|