●Product introduction
Product specifications: XSN (XZ) -132kVA/44kV
Applicable test products: cables, main transformers, switches, transformers
The scope of tested products: 10kV/300mm2 cable 3km, 10kV/20000kVA main transformer, 10kV GIS, switch, transformer
●Product role and function:
1. Help customers to achieve 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: 1. AC withstand voltage test of 10kV/300mm2 cable 3km, capacitance≤1.126uF, test frequency 30-300Hz, test voltage 22kV, test time 5min.
2. AC withstand voltage test of 10kV/20000kVA main transformer, capacitance ≤0.01uF, test frequency 45-65Hz, test voltage not exceeding 35kV, test time 1min.
3. AC withstand voltage test of 10kV GIS, switch and transformer, test frequency 30-300Hz, test voltage 42kV, test time 1min.
●Product core parameters
Rated capacity: 132kVA;
Input power: single-phase 220 or three-phase 380V voltage, frequency is 50Hz;
Rated voltage: 22kV; 44kV;
Rated current: 6A; 3A;
Working frequency: 30-300Hz;
Device output waveform: sine wave
Waveform distortion rate: output voltage waveform distortion rate ≤ 1%;
Working time: allow continuous 5min under rated load; overvoltage 1.1 times 1 minute;
Temperature rise: the temperature rise ≤65K after continuous operation for 5 minutes under rated load;
Quality factor: the device itself Q≥30 (f=45Hz);
Protection function: overcurrent, overvoltage and flashover protection for the tested product (see the frequency conversion power supply section for details);
Measurement accuracy: system effective value 1.5;
2. Excitation transformer JLB-6kVA/1/3kV/0.4kV 1 set
Rated capacity: 6kVA;
Input voltage: 0-400V, single phase;
Output voltage: 1/3kV
Structure: dry type;
Weight: about 45kg;
3. Frequency conversion power supply BP-6kW/220/380V 1 unit
Rated output capacity: 6kW
Working power supply: 220/380±10%V (single/three-phase), power frequency
Output voltage: 0 -400V, single phase,
Rated input current: 15A
Rated output current: 15A
Voltage resolution: 0.01kV
Voltage measurement accuracy: 1.5%
Frequency adjustment range: 30 – 300Hz
Frequency adjustment resolution: ≤0.1Hz
Frequency stability: 0.1%
Running time: continuous 5min under rated capacity
The maximum temperature of the components during continuous operation for 5 min under the rated capacity is ≤65K;
Noise level: ≤50dB
4. High-voltage reactor DK (G)-44kVA/22kV 3 sections
Rated capacity: 44kVA;
Rated voltage: 22kV;
Rated current: 2A;
Inductance: 55H/single cell;
Quality factor: Q≥30 (f=45Hz);
Structure: dry type;
Weight: about 40kg;
5. Capacitor voltage divider FY-50kV/3000pF 1 set
Rated voltage: 50kV;
High voltage capacity: 3000pF
Dielectric loss: tgσ≤0.5%;
Partial pressure ratio: 1000:1
Measurement accuracy: effective value 1.5;
Weight: about 8kg;
6. Compensation capacitor BC-35kV/40000pF 1 set
Rated voltage: 35kV
High voltage capacity: 40000pF
Weight: 10kg
