● Product Introduction
Product specifications: XSN (XZ) -44kVA/22kV (frequency conversion)
Applicable to test product: cable
Range of tested products: 10kV/300mm2 Cable length 1km
● Product function and function
1. Help customers to carry out preventive ac pressure test and handover AC pressure test of various tested products;
2. Ac voltage withstand test of cross-linked rubber and plastic power cables, power transformer, GIS, transformer, insulator, generator, switch and other tested products' insulation ability to withstand various overvoltages and capacitive loads.
● Product name: series resonance withstand voltage test complete set of equipment, AC withstand voltage test complete set of equipment, resonance boost device for inspection, series resonance withstand voltage test instrument.
● Test object: 10kV/300mm2 cable length 1km AC voltage test, capacitance ≤0.3755uF, test frequency 30-300Hz, test voltage 22kV, test time 5min.
● Technical parameters
1. Core product parameters
Rated capacity: 44kVA;
Input power: single-phase 220 or three-phase 380V voltage, frequency is 50Hz;
Rated voltage: 22kV
Rated current: 2A
Operating frequency: 30-300Hz;
Device output waveform: sine wave
Waveform distortion rate: output voltage waveform distortion rate ≤1%;
Working time: continuous 5min under rated load; Overvoltage 1.1 times 1 minute;
Temperature rise: temperature rise ≤65K after 5min continuous operation under rated load;
Quality factor: Q≥30(f=45Hz);
Protection function: over current, over voltage and flashover protection (see frequency conversion power supply);
Measurement accuracy: system effective value 1.5 level;
2, motivating JLB - 3 kva transformer / 1.5 kV / 0.4 kV 1
Rated capacity: 3kVA;
Input voltage: 0-400V, single phase;
Output voltage: 1.5kV
Structure: dry type;
Weight: about 35kg;
3. One frequency conversion power supply BP-3KW /220/380V
Rated output capacity: 3kW
Power supply: 220/380±10%V (single/three phase), power frequency
Output voltage: 0 -- 400V, single phase,
Rated input current: 7.5a
Rated output current: 7.5a
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 5min at rated capacity
The highest temperature of components under rated capacity for 5min continuous operation ≤65K;
Noise level: ≤50dB
4, high voltage reactor DK (G) -22kVA/22kV 2 sections
Rated capacity: 22kVA;
Rated voltage: 22kV;
Rated current: 1A;
Electric sensitivity: 92H/ single section;
Quality factor: Q≥30 (f=45Hz);
Structure: dry type;
Weight: about 30kg;
5, capacitor divider FY-30KV /3500pF 1 set
Rated voltage: 30kV;
High voltage capacity: 3500pF
Dielectric loss: TG σ≤0.5%;
Partial pressure ratio: 1000:1
Measurement accuracy: effective value 1.5 level;
Weight: about 6kg;
