TRANSFORMER TESTING
We have state-of-the-art testing facilities for testing and evaluation of:
- Power transformers
- Dry-type power transformers
- Outdoor/indoor type oil immersed distribution transformers upto and including 2500 kVA, 33 kV
Rajasthan Test and Research Centre (RTRC) is NABL Accredited Transformer Testing Laboratory offering Transformer Inspection & Testing services for Power Distribution Transformers upto 2.5 MVA, 33 kVE in Delhi, Haryana, India, Dubai, Abu Dhabi UAE, Doha Qatar, Kuwait, Switzerland, Thailand, South Africa, Bangladesh, Bhutan, Singapore, Malaysia, Nepal, USA
| 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 |
TESTING FACILITIES AS PER NATIONAL & INTERNATIONAL STANDARDS
| 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 | Moisture content and insulating oil |
| ASTM D-3359 | Paint adhesion |