DF3000 is mainly used for AC induced withstand voltage tests on 35KV-220KV voltage transformers, assessing the graded insulation level of 35KV-220KV voltage transformers. It is suitable for AC withstand voltage tests on 10KV~220KV cables; power frequency withstand voltage tests on large transformers and generators; AC withstand voltage tests on 110KV and 220KV GIS systems; and AC withstand voltage tests on 110KV and 220KV high-voltage switches, PTs, and CTs.

Product Aliases


【Multi-frequency Power Source Generator】,【Multi-frequency Generator】,

【Multi-frequency Voltage Generator】,【Triple Frequency】

Product Features


1. High-precision frequency and voltage stabilization, with knob-type rapid adjustment of the variable frequency power supply output voltage and frequency;

2. High-precision LED display: voltage, current, frequency, active power, and power factor;

3. The measured signal values are true RMS values;

4. Nominal set voltage +10% to +25%, -10% to -30% can be preset;

5. Output frequency: adjustable from 45-400Hz, fixed points: 50Hz/60Hz/400Hz;

6. Output voltage: 0-660V, can simulate voltages of countries worldwide;

7. Load voltage regulation accuracy: ±0.5%;

8. Load frequency stability: ±0.1%;

9. Protection devices: multiple protections and alarm functions including overvoltage, overcurrent, overload, and overtemperature;

10. Custom multi-frequency voltage generators of various specifications can be manufactured according to customer requirements.

Product Parameters


1. Output capacity: 5KVA

2. Circuit mode: IGBT/PWM pulse width modulation

3. Input frequency: 50Hz/60Hz±5%

4. Phase: Single phase

5. Voltage: Low gear 0V-330V

6. High gear: 0V-660V

7. Frequency: adjustable from 45-400Hz, fixed points: 50Hz/60Hz/400Hz

8. Operating temperature: 0℃～45℃

9. Relative humidity: 0～90% (non-condensing)

10. Dimensions: Height×Width×Depth 650 mm×430 mm×520 mm

11. Weight: 80KG