GDTF-200/200 CVT AC Resonant Test System

 

I. Test Object and Requirement
 
 
The system is specially designed for AC withstand voltage test for below items, with below
 
specifications and requirements.
 
Test Object
Specifications
Capacitance
Test Frequency
Test Voltage
Test Time
CVT
245kV
0.00375-
50Hz
170kV
1min
 
 
0.0113μF
 
 
 
Main
275kV
0.00375-
50Hz
190kV
1min
transformer
 
0.0113μF
 
 
 
 
 
 
II.   Working Environment
 
 
      Environmental temperature: -15℃ to 55℃
 
      Related humidity: ≤ 90% RH
 
      Working frequency: 50Hz±0.5Hz
 
      Altitude: ≤ 3km


 

III.    chnical Data
 
 
      Rated capacity: 200kVA
 
      Input power supply: 380V, 50Hz
 
      Rated voltage: 200kV
 
      Rated current: 1A
 
      Working Frequency: 50Hz
 
      Waveform distortion rate: ≤1%
 
      Working time: constant working of 5mins under rated load; working of 1min, under 1.1 times of rated voltage
      Temperature rise: ≤65K after constant working of 5mins under rated load
 
      Quality factor: Q ≥10 (f=50Hz)
 
      Protective function: Over-current, over-voltage and flashover protections for test object.
 
      Accuracy: 1.5% (RMS)
 
 
 
IV. Applied standard
 
 
GB10229-88
Reactor
GB1094
Power transformers
GB50150-91
Standard for hand-over test of electric equipment installation engineering
DL/T 596-1996
Preventive test regulation of electric equipment
GB1094.1-GB1094.6-96
Protection class of Shell
GB2900
 
Electrotechnical terminology
GB/T16927.1~2-1997
High voltage Testing Technique
 
 
 
 
V.   Parameters for Individual Parts
 
 
1.   Exciting Transformer GDJL-10kVA/10kV (1 set)
 
 
      Rated capacity: 10kVA
 
      Input voltage: 0-400V, single phase
 
      Output voltage: 10kV
 
      Type: Dry type transformer


 

      Weight: approx. 58kg
 
2.   Control Unit GDTF -10kV/380V (1 set)
 
 
      Rated output capacity: 10kVA
 
      Working power supply: 380V±10%, power frequency
 
      Output voltage: 0-400V
 
      Rated input current: 25A
 
      Rated output current: 25A
 
      Working time: constant working of 5mins under rated capacity.
 
       Temperature rise: ≤ 65K after constant working of 5mins under rated capacity.
 
      Noise: ≤50dB
 
      Weight: approx. 75kg.
 
 
3.   Adjustable Reactor GDDK-50kVA/50kV (4 pcs)
 
 
Rated capacity: 50kVA
 
Rated voltage: 50kV
 
Rated current: 1A
 
Inductance: 211-700H (per set, adjustable)
 
Quality factor: Q ≥10
 
Weight: approx. 75kg