Long HV XLPE Cable Testing Device / Hv Test Equipment 3000KVA Or OEM Capacity

II. Test priciple figure:


VF: Variable Frequency Power Supply Source which is control and measurement part in the test circuit.

T : Excitation Transformer which provide the exciting voltage for HV test reactor
L : Test Reactor which is resonant inductance in the LC circuit and produce the test voltage

Cx: Tested Equipment

MOA1: Lightning Arrestor is protection part on the excitation transformer
C1,C2: Voltage divider(C1 is high voltage arm,C2 is low voltage arm ) which is HV voltage measurement part


III. General Technical data:

1. Mode of system test: Series resonant with variable frequency
2. System model : OEM
3. Input power supply : 380±10%(three-phase),50Hz/60Hz
4. Number of HV test reactor: OEM
5. Rated output capacity: OEM
6. Rated output Voltage: 150KV or OEM
7. Max Test voltage : no more than 150KV,300KV,450KV
8. Rated output current: 25A max or OEM
9. Reg. Freq range : 20Hz-300Hz
10. Output Resonance voltage waveform: sine wave
11. THD of output waveform: ≤1%
12. Insulation level: Under 1.1 times and keeping 1min, normal
13. Duty cycle : 60mins on under rated current working condition ;
14. Quality factor of test set itself: Q≥60
15. Temperature rise: Less than 65K under rated current working 60mints;
16. Noise level: No more than 65dB
17. Reactor Structure: oil immersed type, epoxy tube cylinder type；

IV.Accessories

• Necessary corona rings
• Parallel cables of the reactor
• HV output cables(reactor to divide)
• Corona ring for test reactor
• A final test report, a quality Certificate ,a user manual and a packing list are offered .

V. Typical model of test reactors

1 Optional model for 132KV class XLPE cable on-site withstand voltage test

Note :Tested cable voltage class≤ 132kV, 0.25uF/km

2 Optional model for 230KV class XLPE cable on-site withstand voltage test

Note :Tested cable voltage class≤ 230kV, 0.25uF/km

3 Optional model for 330KV class XLPE cable on-site withstand voltage test

Note :Tested cable voltage class≤ 330kV, 0.25uF/km

4 Optional other model for long XLPE cable on-site withstand voltage test

Note : XLPE cable test voltage is considering as 1.7U₀

5 Optional model for HV or EHV class cable and GIS On-site AC hipot test

VI. On-site test standard table from IEC 60840:2011 and IEC 62067:2011 for XLPE cable

VII. On-site insulation test standard table from IEC 62271-203:2011 for HV GIS