22KV/44KVA Variable Frequency Series Resonance
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Main technical parameters and functions of the device
1. Rated capacity: 44kVA;
2. Input power: single-phase 220V or three-phase 380V voltage, frequency 50Hz;
3. Rated voltage: 22kV
4. Rated current: 2A
5. Working frequency: 20-300Hz;
6. Output waveform: sine wave
7. Waveform distortion rate: output voltage waveform distortion rate ≤1%;
8. Working time: continuous 5min allowed under rated load; overvoltage 1.1 times for 1 minute;
9. Temperature rise: after continuous operation for 5min under rated load, temperature rise ≤65K;
10. Quality factor: device's own Q≥30 (f=45Hz);
11. Protection functions: overcurrent, overvoltage, and flashover protection for the test object (see variable frequency power supply section for details);
12. Measurement accuracy: system effective value class 1.5;
Test object and test requirements
AC withstand voltage test for 10kV/300mm2 cable length 1km, capacitance ≤0.3755uF, test frequency 30-300Hz, test voltage 22kV, test time 5min.
Working environment
1. Ambient temperature: -100℃～50℃;
2. Relative humidity: ≤90%RH;
3. Altitude: ≤1000 meters;
Determination of device capacity
The device capacity is set to 44kVA/22kV, divided into two reactor sections, each reactor is 22kVA/22kV/1A/92H. The series and parallel connection of reactors can meet the test requirements of the above test object.
Standards followed by the equipment
GB10229-88 "Reactors"
GB1094 "Power Transformers"
GB50150-2006 "Standard for Handover Test of Electrical Equipment Installation Engineering"
DL/T 596-1996 "Preventive Test Regulations for Power Equipment"
GB1094.1-GB1094.6-96 "Degrees of Protection Provided by Enclosures"
GB2900 "Electrotechnical Terminology"
GB/T16927.1～2-1997 "High-Voltage Test Techniques"
Note: The above information and technical parameters are compiled and released by Yangzhou Dary Electric Co., Ltd.
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