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Capacitance type voltage transformer tester

Capacitance type voltage transformer tester

Type: PTA-2000C
       Pta-2000c capacitive voltage transformer tester is also known as capacitive voltage transformer field tester and capacitive PT field calibrator. The capacitive voltage transformer tester is mainly used to test the characteristics and errors of capacitive voltage transformer PT (CVT) and electromagnetic voltage transformer PT.
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Product Features
      1. A single instrument can realize error testing of capacitive PT (CVT) and electromagnetic PT without resonance booster, standard voltage transformer, load box, calibrator and other equipment, greatly reducing the workload of on-site calibration error.
     2.The test range is wide, and the test voltage level is 6kV ~ 800kV electromagnetic voltage transformer.
     3. The standard voltage transformer of grade 0.01 is used internally, and the low-voltage error of the transformer is tested by the difference measurement method; Using frequency conversion test technique, the excitation characteristic curve of working area is obtained, and the error of the whole working range of transformer is analyzed by extrapolation method. The test level of the instrument can reach 0.05. During the test, the maximum test voltage is not more than 3kV, ensuring the safety of field test.
      4. The test wiring is simple, the operation is simple and easy to learn, and the transformer calibration can be easily completed according to the instructions, which greatly improves the test efficiency.
Parameter
PT ratio
Accuracy
Ratio 1 to 350 0.03% (typical)
Ratio 350 to 1100 0.05% (typical)
Ratio >1100 0.07% (typical)
Phase measurement Resolution 0.01min
Accuracy ±2min
Secondary winding
Resistance measurement
Range 0Ω~500Ω
Resolution 1mΩ
Accuracy 0.5% ± 2mΩ (guaranteed value)
AC load
measuring
Range 0VA~1000VA
Resolution 0.01VA
Accuracy 0.5%±0.05VA

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