0.02% Class Automatic CT PT Analyzer for 500kv Current Transformer Testing

• Customization: Available
• After-sales Service: Lifetime Technical Support, Online Service
• Warranty: 1 Year
• Model NO.: GDVA-405
• Accuracy: 0.02%(Typical), 0.1%(Guarantee)
• Application: Routine Testing of CT PT
• CT Types: M, P, Tpy, Bushing CT, Gis CT.etc
• Voltage Output: 0.1-180V (AC)
• Current Output: 0.001-5A(RMS)
• PC Control: Yes(Optional)
• Transport Package: Plywood Case for Gdva-405 CT PT Analyzer
• Specification: 39KG with packages for GDVA-405 CT PT Analyzer
• Trademark: CHONGQING GOLD
• Origin: Chongqing, China
• HS Code: 9030849000
• Production Capacity: 500 Pieces/Month

Product Description

0.02% Class Automatic CT PT Analyzer for 500kV Current transformer testing

The volt ampere characteristic (also known as excitation characteristic) of a current transformer is one of the most important handover tests. It is also listed as a necessary test item in accordance with the requirements of the GB50150-2016 national standard, along with the transformation ratio, angle error, 10% error test, primary and secondary winding DC resistance, and power frequency withstand voltage test of the current transformer.

Main Test Items for current transformer(CT):

1) Turn ratio detection

2) Ratio and angle error check

3) Polarity test

4) Excitation characteristic test

5) Secondary winding resistance measurement and secondary burden measurement

6) 5% and 10% error curve measurement

7) Transient characteristics analysis

8) Automatic nameplate inference

9) Knee point voltage/current

10) Accuracy Limit Factor (ALF)

11) Instrument security factor (FS)

12) Secondary time constant (Ts)

13) Remanence coefficient (Kr)

14) Accuracy

15) Saturation and desaturation inductance

16) Knee point electromotive force

17) Limit electromotive force

18) Area factor

19) Iron core analysis and core hysteresis loop measurement

 

Product Parameters

Technical Index for GDVA-405 0.02% Class Automatic CT PT Analyzer for 500kV Current transformer testing

 

Voltage output	0.1-180V (AC)
Current output	0.001-5A(RMS)
Power output	500VA
Max.  knee voltage measurement	60KV
Current measurement	range: 0-10A (automatically change  range in 0.1/0.4/2/10A) error:  <±0.1%+0.01%FS
Voltage measurement	range: 0-200V (automatically change range in 1V/10V/70V/200V). error: < ±0.1%+0.01%FS
Turns ratio measurement Range	1~35000 1~2000, error<0.05% 2000~5000,error<0.1% 5000~35000,error<0.2%

 

Phase measurement	error:±2min resolution: 0.01min
Winding resistance measurement	range:0-8kΩ (automatically change range in2ohm/20ohm/80ohm/800ohm/8kohm) error: < 0.2%RDG+0.02%FS Maximum resolution :  0.1mΩ
CT Secondary burden	range: 0-160ohm (automatically change range in 2ohm/20ohm/80ohm/160ohm) error:<0.2%RDG+0.02%FS Maximum resolution : 0.001ohm
PT Secondary burden	range: 0-80kohm (automatically change range in 800ohm/8kohm/80kohm) error: <0.2%RDG+0.02%FS Maximum resolution : 0.1ohm
PT ratio measurement	1-35000, 1-10000 error<0.1%,  10000-35000 error<0.2% PT ratio error measurement :Typical error<0.05%,  Maximum Error<0.1% PT phase angle measurement maximum error < 3min
PC Control	Optional