Solar Inverter Duty Transformer (IDT) is a specialized electrical transformer designed to bridge solar photovoltaic (PV) inverters with the utility grid or local distribution networks. These are critical for modern renewable energy projects due to their ability to handle non-sinusoidal waveforms and high-frequency harmonics generated during the DC-to-AC conversion process.
Technical Specifications
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Feature
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Specification
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Type
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Oil Cooled Type
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|
Rating
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Upto 10 MVA
|
|
Voltage Class
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Upto 33kV
|
|
Voltage Ratio
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1.1kV/0.800kV/0.660kV/0.630kV/0.440kV/0.415kV
|
|
Frequency
|
50 Hz
|
|
Phase
|
3 Phase
|
|
Cooling Type
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ONAN/ONAF
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|
Vector Group
|
As Required
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Winding Material
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Copper/Alummium
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Insulation Class
|
A
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|
Tap Range
|
Off Circuit Or On-Load Tap Changers for HV/LV Variation As Per Customers Specification
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|
Impedance
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In Line With Applicable Standards/ Customers Specification
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|
Applicable Standard
|
IS, IEC, IEEE Etc.
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Standard Tests
- Winding Resistance Measurements
- Ratio and Polarity Measurements
- Exciting Current and No Load Losses
- Impedance and Load Losses Measurements
- AC Dielectric Test
- Induced Voltage Test
- Core Ground Test
- Oil BDV Test
- Magnetic Balance Test
- Insulation Resistance Test
- Vector Group Test
Optional Tests
- Temperature Rise
- Sound Level
- Radio Influence Voltage
- Partial Discharges
- Basic Insulation Impulse Level
- SFRA Test
- Short circuit Test
Brands
§ ABB | RPPL | Synergy | Rishabh | Telwne | T&R | CG Power
Common Applications
§ Cement Industries | Steel Industries | Chemical Industries | Solar Applications(Renewable Energy) | Refineries | Electricity Boards | Infrastructure | Utilities | Power Plants | Commercial | Railway & Metro