PORTABLE PRECISION CURRENT TRANSFORMER TESTING CT PT ANALYZER
GF106 CT/PT TESTER is mainly used for field testing, it can finish the measurements (M) and protection (P) class CT, PT and TYP class CT. Adopt LCD, self-equipped mini type printer supporting field printing; supporting to use USB flash disk to dump data, with simple and convenient operation.
FEATURES
- Steady and transient state characteristic tests of various types of CT/PT
- The use of advanced power technology, the test knee point reaches up to 40kV
- No external other auxiliary equipment, stand-alone to complete all test items
- CT test, easy to test, all the tests are using the same wire connection except the load test
- It carries with thermal printer, so it can print test results on site
- Parameters such as knee point current and voltage
- Parameters such as 10% error curve, 5% error curve
- The device can store 3000 groups of test data which would not be lost if the device is power off.
- The data can be displayed and analyzed after the test, or transferred to PC through USB disk and produce a Word file report
- Portability: weight < 12kg
FUNCTION
I. Current Transformer (CT) |
II. Voltage Transformer (PT) |
1. Magnetization curve |
1. Excitation characteristic test |
2. Transformation ratio test |
2. Transformation ratio test |
3. Polarity |
3. Polarity |
4. 5% and 10% error curve |
4. Ratio error, phases |
5. Current Injecting |
5. Degauss |
6. Degauss |
6. Calculation of knee point value |
7. Ratio error, phases |
7. Actual secondary load (burden), test (burden) |
8. Automatic calculation of excitation knee point value |
8. Resistance test |
9. Actual secondary load test (burden) (load test) |
10. Resistance test |
11. Secondary winding time constant (Ts) |
12. Remanence coefficient (Kr) |
13. Transient dimensioning factor (Ktd) |
14. Peak instantaneous error (Er) |
15. Magnetizing inductance (LU) |
PARAMETERS
Electrical parameters |
Accuracy |
0.05%, 0.1% |
Power supply |
AC 220V±10% or AC 110V±10%, 50/60Hz |
Excitation output voltage |
0-220Vrms |
Excitation output current |
0-5Arms (20A peak-value) |
Automatic frequency variation range |
0.1-60Hz |
Equivalent excitation voltage |
≤5000V |
Accuracy |
≤0.5% (0.2%RD+0.3%RG) |
Secondary winding DC resistance measurement |
Range |
0.1-300Ω |
Accuracy |
≤0.5% (0.2%RD+0.3%RG) |
Secondary actual load measurement |
Range |
5VA-1000VA |
Accuracy |
≤0.5% (0.2%RD+0.3%RG)±0.1VA |
CT/PT phase error measurement |
Accuracy |
±4min |
Resolution |
0.01min |
CT ratio error measurement |
Range |
1-30000 |
Accuracy |
≤0.5% |
PT ratio error measurement |
Range |
1-10000 |
Accuracy |
≤0.5% |
Standards |
Reference standards |
GB1207-2006, GB1208-2006, GB16847-1997
IEC60044-1, IEC60044-6, IEC61869-2-2012 |
Safety standards |
GB 4793.1-2007 |
EMC |
EMC standard 89/336/EEC |
FCC Subpart B of Part 15 Class A |
IEC 1000-4-2/3/4/6 |
Mechanical parameters |
Overall dimension (L x W x H) (mm) |
410 x 250 x 300 |
Weight (kg) |
≤10 |
Environmental conditions |
Relative humidity |
90RH% |
Operating temperature |
-10°C to +40°C |
Altitude |
≤2000m |
MAIN FUNCTIONS
The test items mainly include |
Steady |
Transient |
excitation characteristic |
secondary winding time constant (Ts) |
transformation ratio |
remanence coefficient (Kr) |
polarity |
transient dimensioning factor (Ktd) |
ratio error |
peak instantaneous error (Er) |
phases |
magnetizing inductance (LU) |
5% and 10% error curves |
other parameters |
resistance |
secondary load |