Key properties
1. Strong resistance to interference
2. Find frequency faster
3. Operation prompts on each interface/multi-interface test result
4. Automatically track and maintain stable test voltage
5. Manual/automatic test function (pause/quit at will)
6. Coarse/fine adjustment of frequency/voltage
7. Large capacity for the control part of variable frequency power; strong protective function; better output waveform/good stability; universal use for single phase/three phase input power which provides convenience for field test;
8. Flexible mating: Different types of exciting transformer, electric reactor, capacitive voltage divider, etc. could be used to satisfy the demands of different test objects. One device serves several purposes, thus boasting high performance cost ratio.
Device configuration and technical parameters:
1. Variable frequency power source, 1 set: (customized according to user’s demands)
Rated power: 6kVA;
Input voltage: single phase 220V or 380V±10% 45~65Hz
Output voltage: 0~200V adjustable (effective value)
Output voltage frequency: 30~300Hz
Regulation precision: coarse 2Hz stepping fine 0.1Hz stepping degree of instability 0.01%
Output current: 0~18A (maximum current varies along with different powers)
2. High-voltage electric reactor (4 sets in total): 27kV/1A (The following data change according to different powers)
Rated operational voltage: 27kV
Rated operational current: 1A
Rated inductance value: 100H
Continuous working time: 60min
Temperature rise: less than 60°
Operating frequency: 30~300Hz
3. Exciting transformer, 1 set (The following data change according to different powers)
Rated capacity: 6kVA
Input voltage: 200V/400V
Output voltage: 1.25/2.5/5kV, 1.25kV for 10kVtransformer substation system withstand voltage test; 2.5kV for 35kVtransformer substation system withstand voltage test.
4. Capacitive voltage divider, 1 set: 150KVcapacitive (The following data change according to different voltages)
Capacitance of the device: 1000pF
Operating frequency: 30~300Hz
Degree of uncertainty: 1.5%
Rated voltage: 150kV/1000pF
