● Product introduction
Product specification: XSN (XZ) -405kVA/54kV (frequency conversion)
Suitable for testing: cable, switch
Scope of test: 3km of 35kV/300mm cable, 7km of 10kV/300mm cable
●Functions and functions of the product:
1. Help customers to carry out the preventive AC voltage withstand test and handover AC voltage withstand test of various tested products; 2.
2. Test the ac voltage withstand test of the insulation of cross-linked rubber and plastic power cables, power transformers, GIS, transformers, insulators, generators, switches and other tested products under various over voltage capacity and capacitive loads.
Other names: series resonant withstand voltage test complete set, AC withstand voltage test complete set, inspection resonant boost device, series resonant withstand voltage test instrument.
Test object: 1. Ac voltage withstand test of 3km cable of 35kV/300mm cable, electric capacity ≤0.5835uF, test frequency 30-300Hz, test voltage 52kV, test time 60min.
2. Ac voltage withstand test for 7km cable of 10kV/300mm cable, electric capacity ≤2.62uF, test frequency 30-300Hz, test voltage 22kV, test time 5min.
● Product core parameters
Rated capacity: 405kVA;
Input power supply: single-phase 220 or three-phase 380V voltage, frequency 50Hz;
Rated voltage: 27kV; 54 kv;
Rated current: 15A; 7.5 A.
Working frequency: 30-300Hz;
Output waveform: sine wave
Waveform distortion rate: output voltage waveform distortion rate ≤1%;
Working time: continuous 60min under rated load; Overpressure 1.1 times for 1 min;
Temperature rise: temperature rise ≤65K after continuous operation under rated load for 60min;
Quality factor: Q≥30(F =45Hz) of the device itself;
Protection function: Overcurrent, overvoltage and flask-over protection for the tested products (see frequency conversion power supply section for details);
Measurement accuracy: system RMS level 1.5;
2, the excitation transformer JLB - kva / 1.5/3 22 kV / 0.4 kV 1
Rated capacity: 22kVA;
Input voltage: 0-400V, single-phase;
Output voltage: 1.5/3kV
Structure: dry type;
Weight: about 80kg;
3, frequency conversion power BP - 22 v 1 kw / 220/380
Rated output capacity: 22kW
Power supply: 220/380±10%V (single/three phase), power frequency
Output voltage: 0-400V, single phase,
Rated input current: 55A
Rated output current: 55A
Voltage resolution: 0.01kV
Voltage measurement accuracy: 1.5%
Frequency adjustment range: 30-300Hz
Frequency adjustment resolution: ≤0.1Hz
Frequency stability: 0.1%
Operation time: continuous 60min at rated capacity
Operating continuously for 60min at rated capacity, maximum temperature of components ≤65K;
Noise level: ≤50dB
4. High voltage reactor DK (G) -67.5kVA/27kV 6 knots
Rated capacity: 67.5kVA;
Rated voltage: 27kV;
Rated current: 2.5a;
Electrical inductance: 50H/ single node;
Quality factors: Q≥30 (F =45Hz);
Structure: dry type;
Weight: about 65kg;
5. Capacitive voltage divider fY-60kV /3000pF 1 set
Rated voltage: 60kV;
High voltage capacity: 3000pF
Medium loss: TG ≤0.5%;
Partial pressure ratio: 1000:1
Measurement accuracy: RMS level 1.5;
Weight: about 8kg;
