GTB series adopts the new technology of coil winding epoxy vacuum pouring and CD type iron core. Comparing with the same kind of oil immersed transformer, it obviously reduces the weight and volume, improves the insulation strength and the anti humid range in the quality, and effectively weakens the magnetic leakage. The transformer is strong enough to withstand short-circuit current impact.

This series of devices are suitable for the power system and the electric power users to test the insulation performance of various electrical equipment in the field, or working as high voltage source.

Small and light, with compact structure, no oil leakage, maintenance unnecessary, simple wiring

Technical indicators

1 output voltage waveform: sine wave

2 output waveform distortion rate: ≤1%

3 no-load loss: 0.2% ~ 0.35%

4 induction voltage level: 1.1 rated voltage /1min

5 short-circuit impedance of the single test transformer is 4.5%~12% (+ 10%).

6 voltage adjustable precision: +/-1%

7 voltage instability: < 1%

8 over-voltage protection function.

9 surface temperature rise: < 55℃

10 allow continuous operation time at rated voltage: 0.5 hours (long time running transformer can be customized)

11 intermittent running time: under 10kVA, after every 2 hours interval, allowing continuous operation for 0.5 hours. under 15kVA, after every 4 hours interval, allowing continuous operation for 0.5 hours.

12 at half rated voltage and half rated current, running continuously for 4 hours.