On Site AC Resonant Test System For 110KV Power Substation Testing
Portable Variable Frequency Resonant Withstand Voltage Test Set , For 110KV Powe Substation Test Set
I. Application :
This test set model CHX-216KVA/216KV is designed for distribution power substation on-site AC withstand voltage test with variable frequency resonant circuit technology; the test set is made from variable frequency power source,excitation transformer,modular and day type HV test inductance(test reactor) and capacitive divider .Each piece is samller and lighter than common heavy test transformer type on testing large capacity tested boject .
Through modular test reactor is used in parallel or in series, it can be performed the following AC withstand voltage test:
No more than 27KV and 8A for 10KV cable.
No more than 54KV and 4A for 35KV cable.
No more than 108KV and 2A for medium voltage power substation, such as power transformer ,CT, PT, Breaker and so on.
No more than 200KV and 1A for 110KV power transformer ,GIS, CT and PT.
II. Main Components:
| SN | Name of Components | Type and specification | Qty. | Each weight | Each Dimension |
| 1 | Variable frequency power | FKVF-10kW/380V | 1piece | 10kgs | 400*350*380mm |
| 2 | Excitation transformer | CQSB(J)-10kVA | 1piece | 40kgs | 520*350*550mm |
| 3 | HV resonant test reactor | CHX(kf)-27kVA/27kV | 8pieces | 40kgs | D380*H480mm |
| 4 | Capacitive divider | TRF-200kV/1000pF | 1set | 15kgs | D150*H1150mm |
| 5 | Special test accessories | 1set |
Note:1.Load capacitantor can be optional when testing power motor ,generator and power transformer under 45~65Hz.
2.Test reactor can be produced to be 18KV,20KV,22KV,40KV,44KV, 50KV, 54KV,55KV for each piece according to different tested object scope or customer requried.
III. Test Circuit :
VF: Variable Frequency Power Source T : Excitation Transformer
L : Test Reactor Cx: Tested Equipment MOA1: Lightning Arrestor
C1,C2: Voltage divider(C1 is high voltage arm,C2 is low voltage arm )
IV. Technical data:
- Power supply : 220±10%(single-phase),50Hz/60Hz
- Application range: distribution power substation and 110KV GIS
- Rated output capacity: 216kVA
- Test Voltage : 27KV, 54KV, 108KV, 200KV
- Test Current: 8A@27KV, 4A@54KV,2A@108KV,1A@200KV
- Reg. Freq range : 30Hz-300Hz
- Output Resonance voltage waveform: sine wave
- THD of output waveform: ≤1%
- Insulation level: Under 1.1 times and keeping 1min, normal
- Duty cycle : 60mins on under rated current working condition ;
- Quality factor of test set itself: Q≥30(at F=30HZ) ;
- Temperature rise: Less than 65K under rated current working 60mints;
- Noise level: No more than 70B
- Reactor Structure: dry type, epoxy tube cylinder type；
V. Accessories
- Accessory box for storage accessoires
- Input cables of power source
- Output cables of power source
- Output cables of exciting transformer
- System grounding cables
- Parallel cables of the reactor
- HV measuring cables ( the signal output cables of voltage divider )
- HV output cables(reactor to divide,divider to test object)
- Insulation supporting base
- corona ring for 200KV test
- A final test report, a quality Certificate ,a user manual and a packing list are offered .
VI. Optional part
Load compensation capacitor
- Optional model : 200KV/20000pF; 200KV/10000pF; 200KV/6000pF;
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