CT Parameter Analyzer
CTA-1000C CT Analyzer 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.
Why Choose us?
1. Owning advanced equipment and technology with our own Technology Dept.;
2.Good quality can be ensured by our Professional QC team with competitive price.
State Grid Corporation of China is one of our customer!
3.Certifications are available.
4.OEM Service Offered.
5.Design Service Offered.
6.Small trial order can be accepted to see our quality and service.
7. Standardization, effectiveness and timeliness of the pre-sale, in-sale and after sales service.
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% | |
Mechanical parameters | ||
Overall dimension (L x W x H) (mm) | 365 x 165 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 |