Description

Key Features:

✧ Low loss and highly efficient.
✧ Cold Rolled Grain Oriented (CRGO) low loss silicon steel with high permeability are used.
✧ Transformer tank is filled with oil under vacuum thus improving the complete penetration of insulating liquid.
✧ Due to copper’s inherent high conductivity, ductility and strength, all Capital Power transformers are manufactured with pure electrolytic copper only.
✧ Frequency 50Hz-IEC standard.
✧ ONAN type natural cooling.
✧ Standard tapping: +2.5%, -2.5%, +5.0%, -5.0%, -7.5% and others on request.
✧ Transformer complies with the IEC-76, BS-171, ANSI C57.12, VDE 0537 standard.

Capital Power Transformer Are:

✧ Friendly to the environment
✧ Moisture resistant
✧ Safe
✧ Reliable
✧ Economical

Testing

✧ Testing is an important activity in the manufacture of any equipment. Preliminary tests are carried out on the transformer before it is put into the tank, Final tests are carried out according to IEC 76 on completely assembled transformer. The following tests are required as per B 5-171.

Routine test:

✧ Insulation resistance test
✧ Induced over voltage test
✧ Separate source voltage withstand test
1. HV High Voltage test
2. LV High Voltage test
✧ Insulation oil test
✧ HV and LV resistance test
✧ Turn ratio test, Polarity and Phase relation test
✧ No load Test
✧ Load losses Test
✧ Percentage impedance
✧ Core insulation test

Type test:

✧ Noise level test
✧ Temperature rise test.
✧ Over load test
✧ Oil leakage test.

Technical Information of Transfomer