Capacitive voltage transformer online analysis method and related device
The invention discloses a capacitor voltage transformer online analysis method and a related device. The method comprises the following steps: acquiring secondary voltage historical data of a capacitor voltage transformer to be tested online, and online monitoring historical data of capacitance and...
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Main Authors | , , , , , , , , , , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
29.07.2022
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Subjects | |
Online Access | Get full text |
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Abstract | The invention discloses a capacitor voltage transformer online analysis method and a related device. The method comprises the following steps: acquiring secondary voltage historical data of a capacitor voltage transformer to be tested online, and online monitoring historical data of capacitance and leakage current of a bushing on the corresponding side of a main transformer hung on the capacitor voltage transformer to be tested online; calculating a voltage absolute deviation ratio as a first evaluation index, and judging whether an abnormal standard is met or not; when the first evaluation index exception standard is met, starting exception alarm; when the first evaluation index abnormal standard is not met, the voltage relative deviation ratio is calculated as a second evaluation index, whether the abnormal standard is met or not is judged, and when the second evaluation index abnormal standard is met, abnormal alarm is started; and when the second evaluation index abnormal standard is not met, returning to |
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AbstractList | The invention discloses a capacitor voltage transformer online analysis method and a related device. The method comprises the following steps: acquiring secondary voltage historical data of a capacitor voltage transformer to be tested online, and online monitoring historical data of capacitance and leakage current of a bushing on the corresponding side of a main transformer hung on the capacitor voltage transformer to be tested online; calculating a voltage absolute deviation ratio as a first evaluation index, and judging whether an abnormal standard is met or not; when the first evaluation index exception standard is met, starting exception alarm; when the first evaluation index abnormal standard is not met, the voltage relative deviation ratio is calculated as a second evaluation index, whether the abnormal standard is met or not is judged, and when the second evaluation index abnormal standard is met, abnormal alarm is started; and when the second evaluation index abnormal standard is not met, returning to |
Author | ZHANG YIN CHEN XIANXI LUO RONGBO LIU SONG MA RONGRONG SONG ANQI LIANG NIANBAI WANG JUNBO JIANG WEI TU WANJING XIONG SHIBIN LI XIN LIU SHAOHUI ZENG QINGHUI LI LANYIN |
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DocumentTitleAlternate | 一种电容式电压互感器在线分析方法及相关装置 |
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RelatedCompanies | FOSHAN POWER SUPPLY BUREAU, GUANGDONG POWER GRID CORP |
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Snippet | The invention discloses a capacitor voltage transformer online analysis method and a related device. The method comprises the following steps: acquiring... |
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SubjectTerms | CALCULATING COMPUTING COUNTING ELECTRIC DIGITAL DATA PROCESSING MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS TESTING |
Title | Capacitive voltage transformer online analysis method and related device |
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