Technical Parameters
1. Rated capacity: 1500kVA;
2. Input power supply: three-phase 380V , frequency 50Hz;
3. Rated voltage: 500kV; 250kV
4. Rated current: 3A; 6A
5. Operating frequency: 30-300Hz;
6. Device output waveform: sine wave
7. Waveform distortion rate: Output voltage waveform distortion rate ≤ 1%;
8. Working time: Continuous 60 minutes allowed under rated load; Overvoltage 1.1 times for 1 minute;
9. Temperature rise: After continuous operation for 60 minutes under rated load, the temperature rise is ≤ 65K;
10. Quality factor: The device itself has a Q ≥ 30 (f=45Hz);
11. Protection function: It has overcurrent, overvoltage, and flashover protection for the test sample (see the variable frequency power supply section for details);
12. Measurement accuracy: System effective value of 1.5 level;
Device capacity verification
If two reactors are setted, the capacity of a single reactor is 750kVA/250kV/3A/360H, and the total capacity of the device is 1500kVA.
Test and Verify:
220kV/2000mm2 cable 0.6km AC withstand voltage test, capacitance≤0.129uF,test frequency 30~300Hz，test voltage U=216kV, test time is 60 minutes.
two reactors are connected in parallel, L=360/2=180H, then:
Test frequency：f=1/2π√LC=1/(2×3.14×√180×0.129×10-6)=33.03Hz
Test currency：I=2πfCUtest =2π×33.03×0.129×10-6×216×103=5.78A
The device capacity is set at 1500kVA/500kV, divided into two sections of reactors, with a single section of 750kVA/250kV/3A/360H. The use of reactors in series and parallel connection can meet the test requirements of the test sample mentioned above.
