China AC Resonance Test System GDTF-120kVA 120kV

I. Test Object and Requirement

The system is specially designed for AC withstand voltage test for below items, with below specifications and requirements.

Test ObjectSpecificationsCapacitanceTest FrequencyTest VoltageTest TimeTransformer6/66kV/25000kVA ≤0.012uF 45-65Hz112kV1minGenerator6kV/12MW ≤0.1uF 45-65Hz15kV1min

II. Working Environment

Environmental temperature-15ºC to 45ºCRelated humidity≤ 90% RHAltitude≤ 3km

III. Technical Data

Rated capacity120kVAInput power supply: Single phase 220V or three phase 380V; 50HzRated voltage: 30kV; 120kVA Rated current4A; 1AWorking Frequency30-300HzOutput waveformsine waveWaveform distortion rate≤1%Working time: constant working of 5mins under rated load; working of 1min, under 1.1 times of rated voltageTemperature rise: ≤65K after constant working of 5mins under rated loadQuality factor: Q ≥30 (f=45Hz)Protective functionovercurrent, overvoltage and flashover protections for test objectAccuracy1.5% (RMS)

Combination utilization

Test object
HV Reactor 30kVA/30kV Selection of Excitation transformer output end
Testing voltage(kV)6/66kV/25000kVA Transformer4 set reactors in series5kV≤112kV6kV/12MW Generator1 set reactor2.5kV≤15kV

IV. Parameters for Individual Parts

1. Exciting Transformer GDJL-6kVA/2.5/5kV/0.4kV (1 set)

Rated capacity6kVAInput voltage0-400V, single phaseOutput voltag2.5/5kVTypeDry type transformerWeightapprox. 38kg

2. Variable frequency power supply GDTF -6kW/220/380V (1 set)

Rated output capacity6kWWorking power supply 220/380±10%V (single/ three phase, power frequency)Output voltage: 0-400V, single phaseRated input current13ARated output current13AVoltage resolution0.01kVVoltage measuring accuracy 0.5%Frequency adjusting range30-300HzFrequency adjusting resolution≤ 0.1HzFrequency stability0.1%Working timeconstant working of 5mins under rated capacity.Temperature rise≤ 65K after constant working of 5mins under rated capacity.Noise≤50dBWeight10kg

3. HV Reactor GDDK-30kVA/30kV (4 sets)

Rated capacity30kVARated voltage30kVRated current1AInductance100H (per set)Quality factorQ ≥30 (f=45Hz)TypeDry type transformer Weightapprox. 50kg

4. Capactive Divider GDFR-120kV/800pF (1 set)

Rated voltage120kVCapacitance800pFDielectric losstgσ ≤0.5%Divider ratio1500:1Measuring accuracy1.5%Weightapprox. 9kg

5. Compensated capacitorGDBC-120kV/8000pF (1 set)

Rated voltage120kVCapacitance8000pFWeightapprox. 10kg

V. Packing List

No.NameModule No. & SPECSQuantity1Exciting TransformerGDJL-6kVA/2.5/5kV/0.4kV1 set2Variable frequency power supplyGDTF-6kW/220/380V1 set3HV ReactorGDDK-30kVA/30kV 4 sets4Capactive DividerGDFR-120kV/800pF1 set5Compensated capacitorGDBC-120kV/8000pF1 set6Connecting Cable 1 set7Factory Test Report 1 copy8User's Guide 1 copy