Partial Discharge Equipment

Power frequency Partial Discharge Equipment is used for checking the insulation level of all kinds of insulation materials ,insulation structure and electric products. Partial Discharge Equipment is also can be regarded as the partial discharge power source for the power transformers, capacitors, HV vacuum tubes ,CT PT, arrestors and other tested objects. Partial Discharge Equipment is widely adopted by electric manufacturers,electric running departments. Research unities and universities.

1.This Partial Discharge Equipment specification is complete(from 10kVA/50kVto 1000kvA/1000kV ), even higher. All capacity and voltage levels we can customized, functions are improved.

2.The oil-filled testing transformer adopts the partial discharge epoxy insulated cylinder, it will make sure the minimum partial discharge amount. This craft is obvious advantage of field companies.

3.We adopts the high quality silicon steel sheet: DQ130-30 with grain oriented,45 ° inclined seams laminated,the waveform distortion and no-load current is the minimum in the domestic market.

4.Impedance voltage is very low, it is higher than the IEC standard.

5.The console adopts automatic industrial PLC system with computer photo-electricity skill.it has strong anti-interference and higher-automatic features.

6.It has quick-reflection electric protection system,very stable and shorten the harmless to devices.

1.Technical Parameter for Test Transformer

Phase :single phase

Frequency:50Hz

Rated capacity:150kVA

Input voltage:0.4kV

Input current：375A

Output voltage：0~280kV

Output current: 0.53A

Waveform deviation factor：≤3%

Measurement winding voltage ratio:1000：1

Insulation level: low voltage input terminal to ground power frequency voltage withstａnd level 5kV/1min

Dielectric loss: ＜0.3%

Noise：≤60dB

Partial discharge: 0-250kV ,the partial discharge is ≤1-3PC; 0-280kV, the partial discharge is ≤3-5pc

Running time: under rated voltage and current,start form environment temperature,can run 30min.

under 2/3 rated voltage and current, continuous running.

Single test transformer impedance : 3%-12%

Waveform deviation factor: ＜3%

2.Technical Parameter for Automatic console

Phase：single phase

Frequency：50Hz

Rated capacity：150kVA

Input voltage：0.4kV

Input current：375A

Output voltage：0~400V

Output current：0.53A

Waveform deviation factor：≤3%

Insulation level: low voltage input terminal to ground power frequency voltage withstａnd level 5kV/1min

Insulation level:＜0.3%

Noise: ≤60dB

Partial discharge: 0-400V , the partial discharge ≤1-3PC

Running time: under rated voltage and current,start form environment temperature,can run 30min. under 2/3 rated voltage and current, continous running.

3.Technical Parameter for for coupling voltage divider

Mode: HM-TRF-280

Rated frequency: 50Hz

Capacity: 500PF10％

Rated voltage : 280kV

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%

Loss Angle tangent of capacitor dielectric: Pure capacitor voltage divider, under 20℃, 0.4-0.5UN, tgδ≤0.0025.

4.Technical parameter for power isolating transformer

Mode: HM-GLB-150/0.4

Rated capacity：150kVA

Rated voltage ratio:0.4/04kV

Rated current ratio :375/375A

Rated frequency: 50～60Hz

Number of line：2 line

Quality factor of filter reactor：>70

Partial discharge background level : under 280kV, ≤3~5PC; under 250kV, ≤1~3PC

Filter attenuation characteristic：40KHz-100KHz>40dB

100KHz-1MHz>60dB

Insulation level：5kV/1min no anomaly discharge

First Time Use guidance

For the first time use, technical staff will guide customer how to make testing at site.

Three-years Warranty

The warranty period of all equipment is three years, lifetime maintenance.

During warranty period, free maintenance or replacement are provided timely for any quality problem . Finally we will afford customer a satisfactory solution, whether repair, replace or return it back.

Trouble-shooting

fault that users can solve by themselves, we guarantee to give timely telephone guidance and bear the necessary cost .

If meet any fault not impossible to be solved by end-user, we will afford the best solution within 24 hours . Produce will be repaired within 10 days and delivery back to customer.