●Product introduction
Product name: 15.75kV/200MV hydroelectric generating set power frequency modulation series resonance
Product specifications: XSN (XZ) -600kVA/40kV
Applicable test product: hydroelectric generator
Test product range: power frequency AC withstand voltage test of 15.75kV/200MW hydroelectric generator
Product functions and functions: 1. Help customers realize preventive AC withstand voltage test and handover AC withstand voltage test of various tested products;
2. Test cross-linked rubber-plastic power cables, power transformers, GIS, transformers, insulators, generators, switches and other test products insulation withstand various overvoltage capabilities and AC withstand voltage test for capacitive loads.
Product nicknames: series resonance withstand voltage test equipment, AC withstand voltage test equipment, inspection resonant booster device, series resonance withstand voltage tester.
Test object: Power frequency AC withstand voltage test of 15.75kV/200MW hydroelectric generator, single-phase capacity does not exceed 1.3uF, test voltage does not exceed 34.5kV, test time 1min.
●Technical parameters
The main technical parameters and functions of the system:
1. Rated capacity: 600kVA;
2. Rated voltage: 40kV
3. Rated current: 15A
4. Working frequency: power frequency 50Hz;
5. Output voltage waveform distortion rate: ≤0.5%;
6. Allow continuous working time: 5min under rated load;
7. The temperature rise after continuous operation for 5 minutes under rated load is ≤65K;
8. The quality factor of the device itself: Q≥10;
9. System measurement accuracy: effective value 1.5;
10. Input power: three-phase 380V voltage, frequency 50Hz;
11. The tested product has overcurrent, overvoltage and test product flashover protection;
12. Ambient temperature: -10℃-50℃, relative humidity: ≤90%RH, altitude ≤1000 meters;
Product configuration and parameters:
1. Excitation transformer JLB-60kVA/4kV/0.4kV 1 set
Rated capacity: 60kVA;
Input voltage: 400V, single phase;
Output voltage: 4kV
Structure: dry
Weight: about 280kg;
2. Resonant console CZT (XZ) -60kVA/380V (including voltage regulator) 1 set
Rated capacity: 60kVA;
Input voltage: 380V;
Output voltage: 0~430V;
Protection function: zero position, overcurrent, overvoltage and sample flashover protection, with air gap indication function;
Weight: about 170kg;
3. Adjustable reactor DK-400kVA/40kV 1 unit
Rated capacity: 400kVA;
Rated voltage: 40kV;
Rated current: 10A;
Adjustable inductance: 12H~30H;
Quality factor: Q≥10;
Structure: dry type;
Weight: about 280kg;
4. AC/DC voltage divider JZL-40kV 1 unit
Rated voltage: 40kV
Measurement accuracy: AC effective value 1.5;
Dielectric loss: tgσ≤0.5%;
Partial pressure ratio: 1000:1,
Error of partial pressure ratio: ≤1.0%;
Weight: about 15kg;
Structure: Aluminum alloy outer packaging
5. Fixed reactor GDK-200KVA/40kV 1 unit
Rated capacity: 200KVA;
Rated voltage: 40kV;
Rated current: 5A;
Inductance: 22H;
Quality factor: Q≥10;
Structure: dry type;
Weight: about 120Kg
6. Compensation capacitor BC-40kV/0.35uF 1 set
Rated voltage: 40kV;
High voltage capacity: 0.35uF
Weight: 35kg
