NKE-DTTS-SE/30000

Test Items:

🟦 DC resistance measurement

🟦 Transformation ratio measurement

🟦 Insulation resistance measurement

🟦 No-load loss test

🟦 Load loss test

🟦 Inductive withstand voltage test

🟦 Power frequency withstand voltage test

🟦 Temperature rise test (optional)

🟦 Partial discharge test (optional)

This product includes a power distribution cabinet, variable frequency power supply, intermediate transformer, compensation capacitors, and measurement system all housed in a single 40-foot container.

The overall system design is suitable for the following voltage levels:

Three-phase/single-phase transformers

🟦 4.16kV transformers have a maximum test capacity of 6,300 kVA, with an impedance voltage of 5.75% to 8.0%;

🟦 6.9/0.38-2.08kV transformers have a maximum test capacity of 12,000 kVA, with an impedance voltage of 5.75% to 10.0%;

🟦 13.8 (13.09/13.2/12.47)/0.38-4.16kV transformers have a maximum test capacity of 20,000 kVA, with an impedance voltage of 5.75% to 10.0%;

🟦 16.34/0.48kV transformers have a maximum test capacity of 20,000 kVA, with an impedance voltage of 5.75% to 12.0%;

🟦 27 (24.7/23.0)/0.38-4.16kV transformers have a maximum test capacity of 20,000 kVA. Impedance voltage: 5.75% to 12.0%;

🟦 34.5/0.38-13.2kV transformers have a maximum test capacity of 30,000 kVA and an impedance voltage of 5.75% to 12.0%;

🟦 Implementation standards: IEC60076/IEEE C57.12.90-2021

🟦 System measurement accuracy: Precision transformers with accuracy class 0.05/Power analyzer: YOKOGAWA WT500 or higher

DC resistance and transformation ratio are tested using a test vehicle. Wiring is performed once, and data can be uploaded to the routine test system. No-load, loaded, inductive withstand voltage, and power frequency withstand voltage tests are manually wired according to the test procedure, and the computer program automatically completes the test. After the test is completed, the results are automatically calculated and a factory test report is exported.