GDVA-404 Full Automatic Transformer CT PT Testing Equipment

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Basic Info.
  • Place of Origin: Chongqing  
  • Min.Order: 1 Set/Sets

GDVA-404  Full Automatic Transformer CT PT Testing Equipment 








Product Description

 I Introduction 

This full automatic transformer CT PT testing equipment  is performing excitation, ratio and phase error, polarity, secondary loop burden and coil resistance on current and voltage transformer. The instrument provides fully automatic testing and calibration for all types of low leakage flux current transformer and inductive voltage transformer. The maximum knee point voltage of sample CT could be reached 8.4kv. 
The standards support by current transformer analyzer include IEC60044-1, IEC60044-2, IEC60044-6 and C57.13


II Application 


Tests for CT PT Testing Equipment :
1)Excitation curve and parameters test
2)Turns ratio test
3)Ratio and phase error test
4)Polarity mark check
5)Coil resistance measurement
6)Secondary loop burden measurement
7)Error line curve test for protection CT
8)Transient CT parameters test
9)CT nameplate guess
10)Saturation hysteresis loop curve measurement


Tests for voltage transformer:
1)Turns ratio test
2)Polarity test
3) Secondary burden test
4) Coil resistance test




Applications forCT PT Testing Equipment :
1) CT nameplate check
2) CT parameters check in work burden
3) CT transient parameters analysis
4) CT ratio and phase error calibration
5) PT routine test




III  Technical  Parameter



ModelGDVA-404 Full Automatic Transformer CT PT Testing  Equipment 
Test standardsIEC60044-1, IEC60044-6, GB1208, GB16847, C57.13
Power supplyAC220V±10%,50Hz/60Hz±10%
Power output0.1~125V (AC)
Current output0.001~5A(RMS)
Power output300VA
Maximum knee voltage measurement45kv
Current measurementRange:0~10A (automatically change range in 0.1/0.4/2/10A)           
Error <±0.1%+0.01%FS
Voltage measurementRange:0~200 V (automatically change range in 1V/10V/70V/200V)
Error < ±0.1%+0.01%FS
Turns ratio measurementRange :1~30000
1~2000 error<0.05%
2000~5000 error>0.1%
5000~30000 error<0.2%
Phase measurementerror:±2min,resolution:0.01min
Coil resistance measurementRange:0~8kΩ (automatically change range in 2ohm/20ohm/80ohm/800ohm/8kohm)
Error< 0.2%RDG+0.02%FS
Maximum resolution:0.1mΩ
Temperature measurement   -50~100 Celsius degree, error<3 Celsius degree
CT Secondary burdenRange 0~160ohm (automatically change range in 2ohm/20ohm/80ohm/160ohm)
Error <0.2%RDG+0.02%FS
Maximum resolution 0.001ohm
PT Secondary burdenRange 0~80kohm (automatically change range in 800ohm/8kohm/80kohm)
Error <0.2%RDG+0.02%FS
Maximum resolution: 0.1ohm
PT ratio measurementRange :1~30000
1~5000 error<0.2%
5000~30000 error<0.5%
Saved data groups>1000groups
Work conditionTemperature:-10ºC~50ºC, moist:≤90%




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Gold Mechanical & Electrical Equipment Co.,Ltd
9F/10,Jintai Building ,Nanping,, Chongqing, China (Mainland)
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