HGQ-II Instrument transformer calibrator calibration device is a new instrument improved on the basis of HGQ type. It is an electromagnetic standard instrument that outputs the standard ratio of current to voltage. It is a standard ratio power supply composed of standard components such as instrument transformers, standard resistors, standard capacitors, and corresponding power supplies. It can output standard ratios of current-to-current ΔI/I, voltage-to-voltage ΔU/U, voltage-to-current ΔU/I, and current-to-voltage ΔI/U, it is specially used to verify various 1-3 class of transformer calibrators (HEG type and digital display calibrator, etc.). It can also be used to verify the secondary pressure drop tester.
Overview
Models
Model | HGQ-II |
Accuracy level | 0.2% |
Rated frequency | 50 Hz |
Rated current | 5A 1A 0.5A |
Rated voltage | 100 100/√3 100/3V |
Input Voltage | 200V |
Circuit | In-phase component range | Orthogonal component range |
Extended range limit ×10 |
CT Error Test | 0.01%~10% | 0.05'~50' | 10%~100% 50'~500' |
PT Error Test | 0.01%~10% | 0.05'~50' | 10%~100% 50'~500' |
Impedance Test | 0.001~1Ω | 0.001~1Ω | 1~10Ω |
Admittance Test | 0.01~1mS | 0.01~1mS |
1~10mS |