Pd Test Transformer is become necessary for some electrical equipment in order to increase working life of power transmission and distribution equipment.
In order to meet the needs of electrical equipment with different voltage and capacity to proceed power frequency voltage withstand test, we manufacture varies specifications of high-voltage test set, users can select Pd Test Transformer according to their requirements.The power frequencyPd Test Transformer system can generate a continuously adjustable power frequency AC test voltage. Used for power frequency resistance, partial discharge detection and other scientific research on GIS high voltage switches, cables and their cable accessories, transformers, power transformers, high voltage circuit breakers, capacitor bushings and other electrical components.
Main technical features of Pd Test Transformer:
1. Meet the requirements of low partial discharge test;
2. The module has a bad structure and takes up little space;
3. Low impedance, low no-load loss.
Schematic diagram of equipment principle
Part parameters for pd hipot tester--150kvA/500kV
1.Series oil-filled Test Transformer
Phase :single phase
Frequency:50Hz
Rated capacity:150kVA
Input voltage:0.4kV
Input current:0-400A
Output voltage:0~250kV
Output current: 0-0.6A
Series winding output voltage:0-400v
Series winding output current: 200A
Waveform deviation factor:≤3%
Measurement winding voltage ratio:1000:1
2.Oil-filled Test transformer:
Phase :single phase
Frequency:50Hz
Rated capacity:75kVA
Input voltage:0.4kV
Output voltage:0~250kV
Output current: 0-0.3A
Waveform deviation factor:≤3%
Measurement winding voltage ratio:1000:1
3. Automatic console
Phase:single phase
Frequency:50Hz
Rated capacity:150kVA
Input voltage:380V
Input current:395A
Output voltage:0~500KV
Output current:0-400A
Waveform deviation factor:≤3%
Insulation level:<0.3%
Noise: ≤60dB
4.Technical Parameter for for coupling voltage divider
Mode: HM-TRF-500kV
Rated frequency: 50Hz
Capacity: 300pF10%
Rated voltage : 500kV
Divider ratio: 1000:1
Dielectric loss:<0.5%
Precision: 1.5
Partial discharge: under 280kV , ≤3~5PC; under 250kV, ≤1~3PC
Error rang of capacity and divider ratio: ±1.5%
5.Technical parameter for power isolating transformer
Mode: HM-GLB-150/0.4
Rated capacity:150kVA
Rated voltage ratio:0.4/0.4kV
Rated current ratio :375/375A
Rated frequency: 50~60Hz
Number of line:2 line
Quality factor of filter reactor:>70
Service and Support
Factory Release Test
Products are operated in correct way strictly according to production process.
About qualified product, inspector will issue factory test report and certification of quality.
Sub-quality products are prohibitted to leave factory.
Hand-over Technical Documents
Wuhan Goldhome Hipot Electrical Co.,ltd will afford Operation Manual, Packing List, Certification of quality while in products acceptance.
Technical Guidance
After delivering device customers,Wuhan Goldhome Hipot Electrical Co.,ltd can provide systematic technical training, to ensure operator know the operation produce maintenance and trouble-shooting , and able to make test on site.