216KV/108KVA Variable Frequency Series Resonance
Darui Electric recommends
Rated capacity: 132kVA;
Input power: three-phase 380V voltage, frequency 50Hz;
Rated voltage: 22kV;
Rated current: 6A;
Working frequency: 30-300Hz;
Output waveform: sine wave
Waveform distortion rate: output voltage waveform distortion rate ≤1%;
Working time: continuous 5min allowed under rated load; overvoltage 1.1 times for 1 minute;
Temperature rise: after continuous operation for 5min under rated load, temperature rise ≤65K;
Quality factor: device's own Q≥30 (f=45Hz);
Protection functions: overcurrent, overvoltage, and flashover protection for the test object (see variable frequency power supply part);
Measurement accuracy: system effective value class 1.5;
Product Configuration
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No.
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Equipment Name
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Model and Specification
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Unit
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Quantity
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Remarks
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|
1
|
Excitation Transformer
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JLB-6kVA/1kV/0.4kV
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Unit
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1
|
|
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2
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Variable Frequency Power Supply
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CHXB-F-6kW/220/380V
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Unit
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1
|
|
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3
|
High Voltage Reactor
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DK-44kVA/22kV
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Unit
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3
|
|
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4
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Capacitive Voltage Divider
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FRC-30kV/6000pF
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Set
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1
|
|
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5
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Internal Connection Cables
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Set
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1
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Excitation Transformer JLB-6kVA/1kV/0.4kV 1 Unit
Rated capacity: 6kVA;
Input voltage: 0-400V, single phase;
Output voltage: 1kV
Structure: dry type;
Weight: approximately 42kg;
Variable Frequency Power Supply CHXB-F -6kW/220/380V
Rated output capacity: 6kW
Working power: 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
Maximum temperature of components after continuous operation for 5min under rated capacity ≤65K;
13. Noise level: ≤50dB
High Voltage Reactor DK-44kVA/22kV
Rated capacity: 44kVA;
Rated voltage: 22kV;
Rated current: 2A;
Inductance: 55H/section;
Quality factor: Q≥30 (f=45Hz);
Structure: dry type;
Weight: approximately 42kg;
Capacitive Voltage Divider FR-30kV/6000pF
Rated voltage: 30kV;
High voltage capacitance: 6000pF
Dielectric loss: tgσ≤0.5%;
Voltage dividing ratio: 1000:1
Measurement accuracy: effective value class 1.5;
Weight: approximately 6kg;
44kVA/22kV Variable Frequency Cable Series Resonance Test Equipment
44kVA/22kV Variable Frequency Cable Series Resonance Test Equipment
Product Function and Features
1. Help customers achieve preventive AC withstand voltage tests and handover AC withstand voltage tests for various test objects;
2. Test the insulation of cross-linked rubber-plastic power cables, power transformers, GIS, instrument transformers, insulators, generators, switches, and other test objects to withstand various overvoltages and AC withstand voltage tests for capacitive loads.
Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.
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