Beijing GFUVE Instrument Transformer Manufacturer Co.,Ltd.
Beijing GFUVE Instrument Transformer Manufacturer Co.,Ltd. an exclusive current transformer, split core current transformer, current clamp & voltage transformer manufacturer.
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GF1061 portable GFUVE CT analyzer is mainly used for field or lab testing, it can finish the measurements (M) and protection (P) class CT, PT and TYP class CT. Adopt 7 inch touch TFT LCD, self-equipped mini type printer supporting field printing; supporting to use USB flash disk to dump data. The CT PT Analyzer is the most complete and easy-to-use testing system for protection and metering CTs according to IEEE and IEC standards.
The MODEL GF1061PT Voltage Transformer Analyzer is designed for testing current transformers (CT) and potential transformers (PT) without interruption of the customer’s service. This instrument measures CT admittance, CT ratio, CT primary-to-secondary phase angle and the voltage, current and phase angle of the service.
Sophisticated testing of inductive and capacitive voltage transformers GF1061PT is the first portable device which offers highly accurate voltage transformer tests. This allows to use GF1061PT not only for electrical performance checks, but also for class verification and calibration.
FUNCTIONS
Injects low test signals into secondary side of the CT
Determines the CT‘s equivalent circuit parameters
Identifies all relevant CT performance parameters
Displays all relevant parameters of the CT and its accuracy at different currents and burdens
Evaluates the CT according to the selected standard
Determines unknown CT nameplate parameters
Demagnetizes the CT after the test
Ratio and phase accuracy
Winding resistance
Excitation characteristics (knee points)
Composite error (ALF, ALFi, FS, FSi, Vb)
Burden impedance
Transient CT classes and parameters
(TPS, TPX, TPY and TPZ type CTs)
Transient dimensioning factor (Ktd)
If missing/unknown: CT type, class, ratio, knee point, power factor, nominal burden, operating burden, primary and secondary winding resistance
Remanence and residual magnetism
Immediate good/bad evaluation
Features
1. Steady and transient state characteristic tests of various types of CT/PT
2. The use of advanced power technology, the test knee point reaches up to 50kV
3. No external other auxiliary equipment, stand-alone to complete all test items
4. CT test, easy to test, all the tests are using the same wire connection except the load test
5. It carries with thermal printer, so it can print test results on site Reference Standard IEC 60044, ANSI/ IEEE C57.13, IEC61869, GB 1207-2006, GB 1208-2006
6. Parameters such as knee point current and voltage
7. Parameters such as 10% error curve, 5% error curve
8. With battery, working 7days.
9. The device can store 10000 groups of test data which would not be lost if the device is power off.
10. The data can be displayed and analyzed after the test, or transferred to PC through USB disk and produce a Word file report
11. Portability: weight <4kg, the best light ct analyzer
| 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, phase error |
| 5. Accuracy limiting factor (ALF) | 5. Degauss |
| 6. Degauss | 6. Calculation of knee point value |
| 7. Ratio error, phase error | 7. Actual secondary load test (burden test) |
| 8. Automatic calculation of excitation knee point value | 8. Resistance test |
| 9. Actual secondary load test (burden test) | |
| 10. Resistance test | |
| 11. Secondary time constant (Ts) | |
| 12. Remanence coefficient (Kr) | |
| 13. Transient dimensioning factor (Ktd) | |
| 14. Peak instantaneous error (Er) | |
| 15. Magnetizing inductance (LU) | |
| 16. Instruments security factor(FS) | |
| 17. Composite error | |
| Electrical parameters | ||
|---|---|---|
| Accuracy | 0.05% | |
| Power supply | AC 220V±10% or AC 120V±10%, 50/60Hz or Battery | |
| Output voltage | 0-100Vrms | |
| Output current | 0-5Arms (20A peak-value) | |
| Output power | 0-400 VA (1500 VApeak) | |
| Automatic frequency variation range | 0.1-60Hz | |
| Equivalent excitation voltage | ≤5000V | |
| Accuracy | ≤0.5% | |
| Secondary winding DC resistance measurement | Range | 0.1-1000Ω |
| Accuracy | ≤0.05% | |
| Secondary actual load measurement | Range | 5VA-1000VA |
| Accuracy | ≤0.5%±0.1VA | |
| CT/PT phase error measurement | Accuracy | ±1min (typical) / 3 min (guaranteed) |
| Resolution | 0.1min | |
| CT ratio error measurement | Range | 1-50000 |
| Accuracy | ≤0.05% | |
| PT ratio error measurement | Range | 1-10000 |
| Accuracy | ≤0.05% | |
| Standards | ||
| Reference standards | GB1207-2006, GB1208-2006, GB16847-1997 IEC60044-1, IEC60044-6, IEC61869-2, ANSI/IEEE C57.13 | |
| 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) | 280 x 250 x 160 | |
| Weight (kg) | ≤4 | |
| Environmental conditions | ||
| Relative humidity | Relative humidity 5%-95% not condensing | |
| Operating temperature | -10°C to +50°C | |
| Storage temperature | -20°C to +70°C | |
| Altitude | ≤1000m | |
