Ring main unit cable joint state judgment method

The invention discloses a ring main unit cable joint state judgment method, which comprises the following steps that a data acquisition terminal acquires a current signal and a temperature signal of a cable joint and sends the current signal and the temperature signal to a monitoring terminal; the m...

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Bibliographische Detailangaben
Hauptverfasser:	XIAO WEI, PAN DONGQIU, CHEN JIN, SHANG QIONGLING, NONG XIE, CHEN XIAO, SHANG SHUNING, LIANG GUANGSHENG, LIU CHANGHUA
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS MEASURING MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR PHYSICS TARIFF METERING APPARATUS TESTING
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Beschreibung
Zusammenfassung:	The invention discloses a ring main unit cable joint state judgment method, which comprises the following steps that a data acquisition terminal acquires a current signal and a temperature signal of a cable joint and sends the current signal and the temperature signal to a monitoring terminal; the monitoring terminal receives the current signal and the temperature signal sent by the data acquisition terminal, and searches the same current signal in a current-temperature database; temperature signal difference calculation is carried out on the collected temperature signal and the temperature signal corresponding to the searched same current signals; in unit time, if the temperature signal difference value is continuously smaller than a first temperature difference value threshold value, it is judged that the temperature signal is normal; and the monitoring terminal displays that the temperature signal difference value of the cable joint is normal. According to the invention, the temperature state of the cable