1.Description:
The resonant withstand test set is specially designed for AC withstand test of 132KV cable The whole test set consists of variable frequency power source, excitation transformer, 4 pieces of reactors, and high voltage detector (capacitive voltage divider). Serial & parallel connections of different combinations of 4 pieces of inductors are able to satisfy different kinds of test requirement.
2.Product Features:
m Variable frequency resonance type
m Test both cable and GIS with different connections.
m Creative design, High Voltage Tester not only one instrument to measure high voltage, but as one capacitor to compose the test set.
m Manual or Automatic Test Mode
m Q value more than 30
m Over Current Protection , Over Voltage Protection, Arc Protection for Tested Object
m Output Wave: Sine Wave,Wave Aberration Rate≤1%
3.Test Object & requirements:
m XLPE Cable, Rated Voltage132kV ,estimate length2000 meters(400~1200mmsq), Equivalent capacity≤0.564μF, Test Frequency:30~300Hz, Test Voltage:190KV
4.The Test Set Composed of:
m Exciting Transformer, 200kVA/8kV, oil immersed,1 piece, about 500Kg
m Variable Frequency Power Supply, 200kW/380V,1 piece, about 300Kg
m High Voltage Inductor,1200KVA/200KV,4 PCS, about 1000kg each, including four pcs of Corona rings
m High Voltage Tester, 200 kV,1piece, about 18Kg, including one pcs of Corona ring
Product reference picture
5. Main Specifications:
m Rated Capacity:4800KVA
m Input: 3-phase,380V,50Hz
m Rated Voltage:200KV,400KV,800KV
m Rated Current:24A, 12A, 6A
m Test Frequency: 30~300Hz
m Output Wave:Sine Wave
m Wave Aberration Rate≤1%
m Duration: Rated test object,60 minutes, Over Voltage 110% 60 seconds( For single HV inductor,over voltage 120% 60 seconds, for whole set, over voltage 110% 60 seconds)
m Temp.Rise: Rated test object,60 minutes continuous operation,less than 65K
m Q Value ≥30(f=45Hz)
m Over Current Protection , Over Voltage Protection,Atc Protection for Tested Object
m Measuring Accuracy: RMS1.5%
m Temp. 0°C ~45°C
m RH≤90%,No dew
m Altitude≤1000m
6. Order Information
6.1 For Order
Difference from other universal tester, Resonant tester is designed and produced according to customer’s specific requirements.
z What Test objects are,
z Specifications of Test object is, for example equivalent capacity for cable, rated voltage for GIS
z Test voltage is for each test object according to your country’s relevant regulations
This is very complex job. If you have any difficulty, please contact us freely.
7.2 Manufacturer Promise
We promise the test set can be operated normally precondition the customer provides us correct information which the system is designed necessarily.
7.3 For customer site service
We can provide customer site service, including connections, commissioning, test and training, based on customer cost.
7.4 The third Party Calibration in China
We can provide the third Party Calibration in China based on customer cost.
7.5 Factory Test Witness
We welcome customer to participate in factory test witness.
7.6 Lead time
Six weeks for rated voltage less than 600KV, 8 weeks for rated voltage more than 600KV.