• Model NO.：GDVA-405
• Max. Knee Voltage Measurement：45kv
• Current Measurement Range：0~10A
• Accuracy：0.02%
• Transport Package：Plywood Case for CT PT Analyser
• Specification：30KG
• Trademark：GOLD
• Origin：Chongqing, China (Mainland)
• HS Code：9030849000
• Production Capacity：500 Pieces,Month

Test Items for Current Transformer(CT)Test Items for Potential Transformer(PT)Turn ratio detection
Ratio and angle error check
Polarity test
Excitation characteristic test
Secondary winding resistance measurement and secondary burden measurement
5% and 10% error curve measurement
Transient characteristics analysis
Automatic nameplate inference
Knee point voltage/current
Accuracy Limit Factor (ALF)
Instrument security factor (FS)
Secondary time constant (Ts)
Remanence coefficient (Kr)
Accuracy
Saturation and desaturation inductance
Knee point electromotive force
Limit electromotive force
Area factor
Iron core analysis and core hysteresis loop measurementTurn ratio measurement
Ratio and angle error check
Polarity test
Excitation characteristic test
Primary winding resistance test
Secondary winding resistance test
Secondary burden measurement
2. Technical Index
 

Test Standards:IEC60044-1,IEC60044-2,IEC60044-5,IEC60044-6,IEC61869-2,C57.13
Power Supply: AC220V±10%,45Hz~65Hz
Output Voltage and Output Current: 0.1~180V(ACRMS),0.001~12A(ACRMS),36A (Peak Value)
Max equivalent knee point voltage: 60KV
CT Turns ratio measurement: Range:1~40000,
1~2000;error<0.05%
2000~5000; error<0.1%
5000~40000;error<0.2%
 

CT Ratio error measurement : 0.02%(Typical), 0.1%(Guaranteed)
Phase measurement: Accuracy: ±2min,Resolution: 0.01min
CT and PT Winding resistance measurement range: 0~8KΩ(automatically change range in 2Ω/20Ω/80Ω/800Ω/8KΩ), error<0.2%RDG+0.02%FS, max resolution: 0.1mΩ
Temperature measurement: -50~100ºC,error: <3ºC
CT Secondary Burden Measurement: 0~160Ω(2/20/80Ω/160Ω),Error: 0.2%RDG+0.02%FS, max resolution: 0.001Ω
PT Secondary Burden Measurement:0~80kΩ(800Ω/8Ω/80Ω),Error: 0.2%RDG+0.02%FS,max resolution: 0.1Ω
PT Turns ratio measurement range: 1~30000,
1~2000; error: <0.05%
2000~5000; error: <0.1%
5000~30000; error: <0.2%
 

PT Ratio error range: 1~2000, error: 0.1%
PT phase angle measurement error: <5 min
12.1 inch large color screen display, touch screen way to realize human-computer interaction. PC Embedded.
Data storage: more than 5000 groups

3. Application Field ------ All kinds of Current and Voltage Transformer(220V~500KV,≥2.5VA)

4. Package