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Features and Specifications
- Robust design and sturdy construction to competently handle short circuits
| Rating | Up to 2500 kVA for Oil & Dry Type(Higher ratings on request) |
|---|---|
| Frequency | 50 Hz, 60 Hz |
| Cooling | ONAN, ONAF |
| Vector Group | As per customer specification |
| Winding Material | Cu / Al |
| Insulating Medium | Mineral Oil Ester Fluid or Silicon Oil as per customer specification |
| Primary Voltage | Upto 145 kV |
| Secondary Voltage | 66kV, 33kV, 11 kV, 6.6kV (other Voltages as required) |
| Tap Range | Off circuit or On-load tap changers for HV / LV variation as per customer specification |
| Impedance | In line with applicable standards / customer specification |
| Applicable Standards | IS, IEC, ANSI, IEEE, EN, etc. |
Technical Specifications
| Parameter | |
|---|---|
| Contra-shield winding for uniform voltage distribution | |
| Winding construction available with Continuously transposed conductor | |
| Impulse testing available upto 800kV, 40 kJ suitable for 145 kV class transformers | |
Fitting
| Standard | Optional |
|---|---|
| Primary bushings (OIP / RIP) | RTCC panels |
| Secondary bushings | Automatic voltage regulator (AVR) |
| Buchholz relay | Terminal connectors |
| Off circuit / On-load tap changer | Online dissolved gas analyzer (DGA) |
| Off circuit / On-load tap changer | Online dissolved gas analyzer (DGA) |
| Pressure relief device / explosion vent | Provision of Nitrogen injection fire protection system (NIFPS) |
| Thermometer | Aircell in Oil conservator |
| Silica gel breather | Aircell rupturing relay |
| Drain / Filter valves | Impact recorder |
| Oil level gauge | Smart breather |
| Rating & diagram plate | Sudden Pressure Relay |
| RLifting lugs | Oil filter unit for OLTC |
| Skid base / roller arrangement | Thermocycle Filter |
| Winding temperature indicator with alarm and trip contacts | Surge Arrester / Snubber circuit for supply terminals |
| Oil temperature indicator with alarm and trip contacts | |
| Magnetic Level Gauge |
| Supply Segments | |
|---|---|
| Substations for industry | |
| Renewable energy | |
| Utilities | |