Resistive current tester for lightning arrester

Resistive current tester for lightning arrester

The utility model relates to a resistive current tester for a lightning arrester, and the tester comprises a coupling magnetic rod mechanism which is used for collecting a magnetic field signal leakedby a transformer iron core in a PT; the voltage acquisition module is electrically connected with th...

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1. Verfasser: FU YOUJUN
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Sprache:chi ; eng
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MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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description The utility model relates to a resistive current tester for a lightning arrester, and the tester comprises a coupling magnetic rod mechanism which is used for collecting a magnetic field signal leakedby a transformer iron core in a PT; the voltage acquisition module is electrically connected with the coupling magnetic rod mechanism and is used for converting the magnetic field signal into a voltage signal; and the main control module is used for receiving the voltage signal and taking the voltage signal as the reference voltage of the resistive current test. In the implementation mode, a special high-sensitivity coupling magnetic rod is adopted to collect a leakage magnetic field of the voltage transformer near a base of the voltage transformer to serve as a resistive current test methodof a reference voltage signal. The design key is that a leakage magnetic field of the voltage transformer is intercepted through the coupling magnetic bar for amplification processing and voltage signals are restored. Accuracy
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In the implementation mode, a special high-sensitivity coupling magnetic rod is adopted to collect a leakage magnetic field of the voltage transformer near a base of the voltage transformer to serve as a resistive current test methodof a reference voltage signal. The design key is that a leakage magnetic field of the voltage transformer is intercepted through the coupling magnetic bar for amplification processing and voltage signals are restored. 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subjects MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
title Resistive current tester for lightning arrester
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