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