Product detail
Main power and GSU transformers — project-based supply.
Liquid-filled three-phase main power transformers for high-voltage applications, supplied on a project basis. This line is available for project-specific requirements. Each unit is built and configured to your project specification.
Overview
Liquid-filled three-phase main power transformers for high-voltage applications, supplied on a project basis. This line is available for project-specific requirements. Each unit is built and configured to your project specification.
Each unit is built and configured to your project specification.
Data
Technical specifications
Figures below are typical available or previously documented configurations. Final ratings are confirmed on approval drawings for each order.
| Overall ratings | 0.63–240 MVA across published 35 / 110 / 220 kV classes |
|---|---|
| 35 kV typical | 0.63–31.5 MVA |
| 110 kV typical | 6.3–180 MVA |
| 220 kV typical | 31.5–240 MVA |
| Higher voltage | Project-specific documented configurations exist (e.g. 345 kV / 250 MVA); not a primary offering |
| Construction | Two- or three-winding; off-circuit tap changing or OLTC |
| Cooling / frequency | ONAN/ONAF; 50/60 Hz |
| Configuration | Confirmed for each project on approval drawings |
Typical configurations
- Project-based supply for utility interconnection and industrial HV applications
- GSU and main power roles when specified by the project
- Configured against the approved project specification
Options & accessories
- Two- or three-winding designs
- Off-circuit tap changing or on-load tap changing (OLTC)
- ONAN / ONAF cooling
- 50 Hz or 60 Hz
Quality
Factory testing
Routine and type testing capability in dedicated HV test facilities. Factory test reports ship with each unit. Final ratings and accessories are confirmed on approval drawings.
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Send your specification, drawings or nameplate data. We reply by email with a quote or clarifying questions.
Need help with sizing, protection or commissioning? Engineering services are provided separately by Niotech Solutions Ltd.