Test Triple Frequency Transformer Device
Product Introduction
Equipped with special filters and multi-gear adjustable compensation inductors, the voltage waveform distortion is less than 5% under different loads, and the power supply of the input side is relatively reduced, making the test bench smaller in size and lighter in weight.
Simple operation, reliable performance, and can well meet the needs of induced withstand voltage tests for transformers and instrument transformers.
The entire device adopts integrated and split designs, making operation more convenient and transportation easier.
Product Brief:
Designed according to China's standard "GB311.1 - 97", it is an electromagnetic triple frequency induced withstand voltage device planned to meet the requirements of high-voltage instrument transformer or transformer multiple frequency induced withstand voltage tests. It can perform induced withstand voltage tests on inter-turn, inter-layer, inter-section, and inter-phase insulation of instrument transformer or transformer windings. This product is widely used for power equipment such as instrument transformers, transformers, and generators of various voltage levels.
Using a three-core five-column structure, the core operating magnetic flux density is selected above the saturation magnetic density, so that the vector sum of the fundamental electromotive force (positive sequence vector) in the secondary winding connected in an open delta is zero, and the open ends output the same phase 150Hz third harmonic.
Product Operation:
1. Connect the power supply and close the air switch; the green indicator light on the control device will turn on.
2. Return the voltage regulator to zero, press the red start button, then the triple frequency generator will be energized and run, and the voltage regulator is ready for boosting.
3. Adjust the voltage regulator to the required test voltage value, closely monitor the current and voltage values in the control device, and make detailed records.
4. If during the test, the tested object experiences inter-turn, inter-layer, inter-section, or inter-phase insulation breakdown, the test current in the control circuit will increase, and the relay can immediately trip and cut off the power.
5. After the test, return the voltage regulator to zero.
