Selection Guide for AC Withstand Voltage Test of Substation

Model

Frequency Power

Excitation transformer

High voltage resonance reactor

Capacitance divider

Applicable sample

YNXZ-50kVA/50kV

3kVA/220V/380V
1station

3kVA/1.2kV/2.4kV/0.2kV/0.4kV  
1station

25kVA/25kV
2 station

30kV/3000pF  
1station

8.7/10kV, 1km cable below 300mm2;
Electrical equipment for substations below 10kV

YNXZ-75kVA/75kV

3kVA/220V/380V
1station

3kVA/1kV/3kV/0.2kV/0.4kV  
1station

25kVA/25kV
3 station

75kV/1500pF  
1station

8.7/10kV, 1.5km for cables below 300mm2;
Electrical equipment for substations below 10kV

YNXZ-108kVA/108kV

6kVA/220V/380V
1station

6kVA/1.2kV/2.5kV/5kV/0.2kV/0.4kV  
1station

27kVA/27kV
4 station

110kV/1000pF
1station

8.7/10kV, 2km for cables below 300mm2;
26/35kV, 1km cable below 300mm2;
Electrical equipment for substations below 35kV

YNXZ-200kVA/200kV

10kVA/220V/380V
1station

10kVA/1.2kV/2.5kV/5kV/10kV/0.2kV/0.4kV  
1station

50kVA/50kV
4 station

200kV/500pF  
1station

8.7/10kV, 2km for cables below 300mm2;
26/35kV, 1km cable below 300mm2;
64/110kV, 0.1km cable below 300mm2;
Electrical equipment for substations below 110kV

YNXZ-270kVA/270kV

15kVA/220V/380V
1station

15kVA/1.2kV/2.5kV/5kV/15kV/0.2kV/0.4kV  
1station

45kVA/45kV
6 station

270kV/500pF
1station

8.7/10kV, 3km for cables below 300mm2;
26/35kV, 1km cable below 300mm2;
64/110kV, 0.2km for cables below 300mm2;
Electrical equipment for substations below 110kV

YNXZ-500kVA/200kV

25kVA/220V/380V
1station

25kVA/1.5kV/3kV/5kV/10kV/0.2kV/0.4kV  
1station

125kVA/50kV
4 station

200kV/1000pF
1station

8.7/10kV, 4km for cables below 300mm2;
26/35kV, 2km for cables below 300mm2;
64/110kV, 0.5km for cables below 300mm2;
Electrical equipment for substations below 110kV

YNXZ-400kVA/400kV

20kVA/220V/380V
1station

20kVA/1.2kV/2.5kV/5kV/20kV/0.2kV/0.4kV  
1station

50kVA/50kV
8 station

400kV/300pF
1station

8.7/10kV, 4km for cables below 300mm2;
26/35kV, 2km for cables below 300mm2;
64/110kV, 0.3km for cables below 300mm2;
Electrical equipment for substations below 220kV

YNXZ-800kVA/400kV

30kVA/220V/380V
1station

30kVA/1.2kV/2.5kV/5kV/20kV/0.2kV/0.4kV  
1station

100kVA/50kV
8 station

400kV/300pF
1station

8km for cables below 8.7/10kV, 300mm2; 4km for cables below 26/35kV, 300mm2;
64/110kV, 0.6km cable below 300mm2;
Electrical equipment for substations below 220kV

YNXZ-500kVA/500kV

25kVA/220V/380V 1station

25kVA/1.2kV/2.5kV/5kV/25kV/0.2kV/0.4kV  
1station

50kVA/50kV
10 station

500kV/200pF 1station

8.7/10kV, 5km for cables below 300mm2; 2km for 26/35kV, cables below 300mm2;
64/110kV, 0.4km for cables below 300mm2;
Electrical equipment for substations below 220kV

YNXZ-1600kVA/800kV

40kVA/220V/380V
1station

40kVA/2.5kV/5kV/20kV/40kV/0.2kV/0.4kV  
1station

400kVA/200kV
4 station

800kV/200pF 1station

64/110kV, 2km cable below 300mm2;
127/220kV, 0.5km for cables below 630mm2;
Electrical equipment for substations below 550kV