Transformer Testing
Our plant is equipped for both oil-immersed and dry-type distribution transformer production. Detailed equipment lists, automation level, and annual capacity are available on request.
Testing is the evidence that a transformer meets its specification. Every unit we dispatch is subjected to the routine tests defined by IEC 60076, with type tests available for new designs and for project requirements.
Our plant is equipped for both oil-immersed and dry-type distribution transformer production. Detailed equipment lists, automation level, and annual capacity are available on request.
Routine tests (every unit)
- Measurement of winding resistance
- Measurement of voltage ratio and check of vector group
- Measurement of impedance voltage and load loss
- Measurement of no-load loss and no-load current
- Dielectric routine tests: applied voltage and induced voltage
- Insulation resistance measurement
- Functional checks of accessories and protection devices
Type and special tests (as specified)
- Lightning impulse test (BIL)
- Temperature rise test
- Short-circuit withstand test
- Sound level measurement
- Partial discharge measurement
- Dielectric special tests
Acceptance testing
- Factory acceptance test (FAT) before dispatch
- Witness testing by the customer or their inspector
- Site acceptance test (SAT) at installation
- Pre-commissioning checks before energisation
Frequently Asked Questions
Hebei Youge Electrical Equipment Co., Ltd.
Hebei Youge Electrical Equipment Co., Ltd.
Insulation resistance, ratio, vector group, functional checks and, depending on the project, oil testing and protection checks before energisation.