Compared with oil-immersed transformers of similar products, this series of transformers, using advanced production equipment, adopt new technology of coil epoxy vacuum pouring and CD iron core, obviously reduce weight and volume. The insulation strength and moisture resistance are improved in quality, and the magnetic leakage is weakened effectively.

I. The main technical parameters

1. Rated capacity: 3kVA

2. Rated input voltage: 200V

3. Rated input current: 15A

4. Testing voltage: 50kV

5. Rated output current: 0.06A

6. Instrument voltage: 100V

7. Working time: 0.5 h

8. Weight: 38kg

9. Dimensions: 330X270X550(mm)

II. General technical indicators

1. Output voltage waveform: sine wave.

2. Output waveform distortion rate :≤1%.

3. No-load current and loss: execute according to national standard

4. Inductive withstand voltage level: 1.1Uo/1min.

5. Short circuit impedance of 5 test transformers :4.5%～12%(±10%).

6. Voltage adjustable accuracy is ±1%.

7. Voltage instability is less than 1%.

8. over voltage protection function.

9. Surface temperature rise :<55℃

10. Under the rated capacity, the allowable continuous running time is 0.5 hours

   （long time required operating transformer, can be customized）,

11. Intermittent running time:    

   Below 10kVA, every 2 hours, allow continuous operation for 0.5 hours

   Above 15kVA, every 4 hours, allow continuous operation for 0.5 hours

12. At half rated voltage and half rated current, continuous operation is allowed for 4 hours