S. No. | PRODUCT | SPECIFICATION |
1 | Outdoor/indoor type oil immersed distribution transformers upto and including 2500 kVA, 33 kVE | IS 1180 (Part-1) |
2 | Power transformers | IS 2026 (Part-1) |
3 | Dry-type power transformers | IS 11171 |
4 | Power transformers | IEC 60076-1 |
5 | Pilot Automatic Transformer (PAT) | IS 1180 (Part-1) |
6 | Outdoor/indoor type oil immersed distribution transformers upto and including 2500 kVA, 33 kVE | IS 1180 (Part-3) |
Type of Tests | Test Standard/ Method | Type of Tests | Test Standard/ Method | |
Air Pressure | GP-317 (Manual of Transformers) | Temperature-rise test | IS 1180 Part-1 | |
GP-295 (Manual of Transformers) | IS 11171 | |||
IS 1180 Part-1 | IEC 60076-11 | |||
Vacuum Test up to 200 kVA | GP-317 (Manual of Transformers) | IEC 60076-1 | ||
GP-295 (Manual of Transformers) | IS 2026 Part-1 | |||
IS 1180 Part-1 | Measurement of voltage ratio and check of phase displacement | IS 1180 Part-1 | ||
Separate-source voltage withstand test | IS 11171 | IS 11171 | ||
IS 1180 Part-1 | IEC 60076-11 | |||
IEC 60076-1 | IEC 60076-1 | |||
IEC 60076-11 | IS 2026 Part-1 | |||
IS 2026 Part-1 | Measurement of winding resistance | IS 1180 Part-1 | ||
Over Fluxing | IS 1180 Part-1 | IS 11171 | ||
Induced over-voltage withstand test | IS 1180 Part-1 | IEC 60076-11 | ||
IS 11171 | IEC 60076-1 | |||
IEC 60076-11 | IS 2026 Part-1 | |||
IEC 60076-1 | Oil Breakdown Voltage | IS 335 | ||
IS 2026 Part-1 | Magnetic Balance | GP-295 (Manual of Transformers) | ||
Measurement of insulation resistance | IS 1180 Part-1 | GP-317 (Manual of Transformers) | ||
IEC 60076-1 | Unbalance Current | GP-317 (Manual of Transformers) | ||
IS 2026 Part-1 | GP-275 (Manual of Transformers) | |||
Measurement of no-load loss and current | IS 1180 Part-1 | Lightning impulse test | IS 11171 | |
IS 11171 | IEC 60076-11 | |||
IEC 60076-11 | IEEE 57.12.90 | |||
IEC 60076-1 | IEC 60076-3 | |||
IS 2026 Part-1 | IS 1180 Part-1 | |||
Oil Leakage Test | IS 1180 Part-1 | IS 2026 Part-3 | ||
Measurement of short-circuit impedance (principal tapping, when applicable) and load loss at 50 percent and 100 percent load | IS 1180 Part-1 | IEEE 57.12.60 | ||
IEC 60076-11 | Measurement of impedance voltage (principal tapping), short- circuit impedance and load loss | IS 11171 | ||
IEC 60076-1 | Voltage ratio and check of phase displacement | IEC 60076-11 | ||
IS 2026 Part-1 | IEC 60076-1 |
Standard | Title |
IS 11171 | Dry-Type Power Transformers |
IS 1180 Part-1 | Outdoor/Indoor type oil Immersed Distribution Transformers upto and including 2500 kVA, 33 kV |
IEC 60076-1 | Power Transformers: General |
IEC 60076-11 | Dry Type Transformers |
IEC 60076-3 | Power Transformer: Insulation levels, Dielectric Tests, External Clearance in Air |
IEEE 57.12.90 | IEEE Standard Test Code for Liquid-Immersed Distribution, Power and Regulating Transformers |
IEEE 57.12.60 | Test Procedure for Thermal evaluation of insulation systems for dry-type power and Distribution Transformers, including open- wound, solid-cast, and resin-encapsulated transformers. |
IS 2026 Part-1 | Power Transformers |
IS 2026 Part-2 | Power Transformers: Temperature Rise |
IS 2026 Part-3 | Power Transformers: Insulation levels, Dielectric Tests and External Clearances in Air |
IS 2026 Part-4 | Power Transformers: Terminal Marking, Tapping and Connection |
IS 2026 Part-10 | Power Transformer: Determination of Sound levels |
IS 2026 Part-1 | Measurement of Zero-sequence impedance on three-phase transformer |
IS 2026 Part-10 | Determination of Sound level |
IS 2026 Part-1 | Measurement of the harmonics of the no-load current |
IS 2026 Part-1 | Determination of capacitance winding to earth and between windings |
IS 2026 Part-1 | Measurement of dissipation factors (tan-delta) of the insulation system capacitances |
IS 1180 Part-1 | Moisture content and insulating oil |
IS 13567 | |
ASTM D-3359 | Paint adhesion |