Application Scope of 10KV Variable Frequency Series Resonance



1. Meet the AC withstand voltage test of 300mm2, 10kV cable, length 1.5km, capacitance ≤0.555uF, test frequency 30~300Hz, test voltage U≤22kV.



2. Meet the AC withstand voltage test of transformers below 100MW/10kV, capacitance ≤0.02uF, test frequency 45~65Hz, test voltage U≤28kV.



3. Meet the AC withstand voltage test of 10kV substation system, test frequency 30~300Hz, test voltage U≤42kV.


 

Application Scope of 35KV Variable Frequency Series Resonance:



1. Meet the AC withstand voltage test of 35kV substation, test frequency 30~300Hz, test voltage not exceeding 95kV.



2. Meet the handover AC withstand voltage test of 10kV, 300mm2, 3km cross-linked cable, test frequency 30~300Hz, capacitance ≤1.11uF, test voltage not exceeding 22kV.



3. Meet the handover AC withstand voltage test of 35kV, 300mm2, 1000m cross-linked cable, test frequency 30~300Hz, capacitance ≤0.19uF, test voltage not exceeding 52kV.


 

110KV Variable Frequency Series Resonance:


 

270KVA/270KV Configuration:



1. Meet the AC withstand voltage test of 300mm2, 10kV cable, length 3km, capacitance ≤1.11uF, test frequency 30~300Hz, test voltage U≤22kV.



2. Meet the AC withstand voltage test of 400mm2, 35kV cable, length 1km, capacitance ≤0.21uF, test frequency 30~300Hz, test voltage U≤52kV.



3. Meet the AC withstand voltage test of 300mm2, 110kV cable, length 0.2km, capacitance ≤0.029uF, test frequency 30~300Hz, test voltage U≤128kV.



4. Meet the AC withstand voltage test of transformers below 40MVA/110kV, capacitance ≤0.02uF, test frequency 45~65Hz, test voltage U≤160kV.



5. Meet the AC withstand voltage test of 110kV GIS, switches, and instrument transformers, test frequency 30~300Hz, test voltage U≤265kV.


  540kVA/270kV Configuration:

1. Meet the AC withstand voltage test of 300mm2, 10kV cable, length 6.5km, capacitance ≤2.405uF, test frequency 30~300Hz, test voltage U≤22kV.



2. Meet the AC withstand voltage test of 300mm2, 35kV cable, length 2km, capacitance ≤0.38uF, test frequency 30~300Hz, test voltage U≤52kV.



3. Meet the AC withstand voltage test of 300mm2, 110kV cable, length 0.5km, capacitance ≤0.07uF, test frequency 30~300Hz, test voltage U≤128kV.



4. Meet the AC withstand voltage test of transformer neutral points below 120MVA/220kV, capacitance ≤0.02uF, test frequency 45~65Hz, test voltage U≤160kV.



5. Meet the AC withstand voltage test of 110kV busbars and GIS, test frequency 30~300Hz, test voltage U≤265kV.