Patent EP0342597A2 successfully refreshed from Google Patents.
EP0342597A2
Expired / Lapsed
EP
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Abnormality system for a high voltage power supply apparatus
Assignee: Hitachi Ltd
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Filing: 1989-05-16
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Granted: —
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Expires: 2009-05-16
Abstract
Abstract An abnormality diagnosing system and method for high voltage power apparatus wherein a plurality of detectors for detecting abnormalities of the high voltage power apparatus and providing outputs indicative thereof are disposed to detect predetermined phenomena indicative of at least an insulation abnormalituy, power supply abnormality and foreign matter among abnormalities existing inside of the high voltage power apparatus. A monitoring arrangement responsive to the outputs of the detectors provides at least one of an output and display of the kind of abnormality detected.
Inventors
- 👤 Jun Ozawa
- 👤 Fumihiro Endo
- 👤 Yoichi Ohshia
- 👤 Izumi Yamada
- 👤 Tokio Yamagiwa
- 👤 Hiroshi Yamada
- 👤 Mitsuo Sawairi
- 👤 Hashime Nagai
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 15:03
CPC Classifications
G; G01; G01R; G01R31/00; H; H02; H02H; H02H1/00; H02H1/0007; H02H1/0015; H02H1/0023; G01R15/00; G01R15/14; G01R15/142; G01R31/12; G01R31/1227; G01R31/1254; H02B; H02B13/00; H02B13/02; H02B13/035; H02B13/065; H01; H01H; H01H1/00; H01H1/0015; H01H2001/0021
Claims Analysis
Total Claims: 34
Claim 1
Independent Claim
91 words
An abnormality diagnosing system for a high voltage power apparatus comprising: detecting means including a plurality of detectors for detecting abnormalities of the high voltage power apparatus and providing outputs indicative thereof, the detecting means being disposed for detecting predetermined phenomena indicative of at least an insulation abnormality, power supply abormality and foreign matter among abnormalities existing inside of the high voltage power apparatus; and monitoring means responsive to the outputs of the detecting means for providing at least one of an output and display of the kind of abnormality detected.
Claim 2
Dependent Claim
91 words
An abnormality diagnosing system for a high voltage power apparatus comprising: detecting means including a plurality of detectors for detecting abnormalities of the high voltage power apparatus and providing outputs indicative thereof, the detecting means being disposed for detecting predetermined phenomena indicative of at least an insulation abnormality, power supply abormality and foreign matter among abnormalities existing inside of the high voltage power apparatus; and monitoring means responsive to the outputs of the detecting means for providing at least one of an output and display of the kind of abnormality detected.
Claim 3
Dependent Claim
87 words
An abnormality diagnosing system according to claim 1, wherein at least a portion of the plurality of detectors are disposed in the high voltage power apparatus, and further comprising local panel means disposed proximate to the high voltage power apparatus for amplifying the outputs of the plurality of detectors, the monitoring means being a central monitoring means disposed at a location remote from the high voltage power apparatus, and signal transmitting means being provided for transferring the outputs of the amplifying means to the central monitoring means.
Claim 4
Dependent Claim
24 words
An abnormality diagnosing system according to claim 2, wherein the local panel means further includes means for determining the soundness of the detector means.
Claim 5
Dependent Claim
26 words
An abnormality diagnosing system according to claim 1, wherein the detector means enables detection of a mixture of foreign matter inside the high voltage power apparatus.
Claim 6
Dependent Claim
86 words
An abnormality diagnosing system according to claim 1, wherein at least a portion of the detectors of the detecting means detect at least one of a predetermined frequency component and a predetermined frequency band component among frequency components detected by the detector means, and the monitoring means, and the monitoring means enables one of an output and display of the kind of abnormality in accordance with one of the predetermined frequency component and the predetermined frequency band component contained in the outputs of the detector means.
Claim 7
Dependent Claim
60 words
An abnormality diagnosing system according to claim 1, wherein the plurality of detectors includes plural sets of detectors providing outputs, and further comprising means for selecting one set of detectors among the plurality of sets of detectors for detection of an abnormality, the selecting means selecting at least one other set of detectors for confirmation of detection of the abnormality.
Claim 8
Dependent Claim
36 words
An abnormality diagnosing system according to claim 1, wherein the monitoring means includes means for providing an indication of a continuously useable period of the high voltage apparatus in accordance with the kind of abnormality detected.
Claim 9
Dependent Claim
36 words
An abnormality diagnosing system according to claim 1, wherein the monitoring means includes means for providing an indication of a method for repair and cost necessary for repair in accordance with the kind of abnormality detected.
Claim 10
Dependent Claim
87 words
An abnormality diagnosing system according to claim 1, wherein the plurality of detectors include a first detector for detecting an occurrence of an abnormality inside the high voltage power apparatus and a second detector for assisting an abnormality determination of the output of the first detector, and further comprising means for varying at least one of a standard for determination of an abnormality of the output of the first detector and a detection interval of the first detector in accordance with the output of the second detector.
Claim 11
Dependent Claim
79 words
An abnormality diagnosing system according to claim 1, wherein the plurality of detectors include first detectors for detecting a partial discharge and second detectors for detecting a partial discharge and an electromagnetic wave in the atmosphere, the monitoring means includes means for effecting spectral analysis of the output of each of the first and second detectors so that a partial discharge inside the high voltage power apparatus is identified from the spectrum determined in accordance with the difference thereof.
Claim 12
Dependent Claim
98 words
An abnormality diagnosing system according to claim 1, wherein the plurality of detectors include at least one acoustic emission sensor disposed in the high voltage power apparatus and at least one acceleration sensor for detecting a signal of a lower frequency band than the detection frequency of the acoustic emission sensor, the monitoring means being responsive to the outputs of the acoustic emission sensor and the acceleration sensor for detecting foreign matter inside the high voltage power apparatus in accordance with a ratio of the output of the acoustic emission sensor to the output of the acceleration sensor.
Claim 13
Dependent Claim
108 words
An abnormality diagnosing system according to claim 1, wherein the plurality of detectors are disposed in different parts of the high voltage power apparatus, the monitoring means including means for storing an output signal of a detector at the different parts of the high voltage power apparatus indicative of an abnormality when an abnormality is simulated in the high voltage power apparatus, and means for determining the actual occurrence of an abnormality of the high voltage power apparatus by calculating the degree of analogy between the stored output signal indicative of an abnormality and the detected signal from the detectors at the time of occurrence of an abnormality.
Claim 14
Dependent Claim
26 words
An abnormality system according to claim 1, wherein the plurality of detectors include at least one detector for measuring temperature and providing an output indicative thereof.
Claim 15
Dependent Claim
29 words
An abnormality diagnosing system according to claim 2, wherein the signal transmitting means includes optical fiber cable means for coupling the local panel means and the central monitoring means.
Claim 16
Dependent Claim
111 words
An abnormality diagnosing system for a high voltage power apparatus comprising: detecting means including a plurality of detectors for detecting at least one abnormality occurring inside of the high voltage power apparatus and providing outputs indicative thereof; and monitoring means responsive to the outputs of the detecting means for providing at least one of an output and display of the kind of abnormality detected, and an indication of at least one of a continuously useable period of the high voltage power apparatus in accordance with the kind of abnormality detected, and an indication of a repair method and cost necessary for the repair in accordance with the kind of abnormality detected.
Claim 17
Dependent Claim
111 words
An abnormality diagnosing system for a high voltage power apparatus comprising: detecting means including a plurality of detectors for detecting at least one abnormality occurring inside of the high voltage power apparatus and providing outputs indicative thereof; and monitoring means responsive to the outputs of the detecting means for providing at least one of an output and display of the kind of abnormality detected, and an indication of at least one of a continuously useable period of the high voltage power apparatus in accordance with the kind of abnormality detected, and an indication of a repair method and cost necessary for the repair in accordance with the kind of abnormality detected.
Claim 18
Dependent Claim
128 words
An abnormality diagnosing system for a high voltage power apparatus comprising: detecting means for detecting at least one abnormality of the high votlage power apparatus and providing outputs indicative thereof, the detector means including at leat first and second detectors, and monitoring means responsive to the outputs of the detecting means for providing an output indicative of an abnormality detected, the monitoring means being one of responsive to the outputs of the first detectors for determining an abnormality and then utilizing the outputs of the second detectors for confirming the determination of the abnormality, and for utilizing the outputs of the second detectors of varying at least one of a standard for determination of the output of the first detectors and a detection interval of the first detectors.
Claim 19
Dependent Claim
128 words
An abnormality diagnosing system for a high voltage power apparatus comprising: detecting means for detecting at least one abnormality of the high votlage power apparatus and providing outputs indicative thereof, the detector means including at leat first and second detectors, and monitoring means responsive to the outputs of the detecting means for providing an output indicative of an abnormality detected, the monitoring means being one of responsive to the outputs of the first detectors for determining an abnormality and then utilizing the outputs of the second detectors for confirming the determination of the abnormality, and for utilizing the outputs of the second detectors of varying at least one of a standard for determination of the output of the first detectors and a detection interval of the first detectors.
Claim 20
Dependent Claim
40 words
An abnormality diagnosing system according to claim 16, wherein the first detectors detect the occurrence of an abnormality inside the high voltage power apparatus and the second detectors assist the determination of abnormality by the output of the first detectors.
Claim 21
Dependent Claim
108 words
In an abnormality diagnosing system for a high voltage power apparatus having a plurality of detectors for detecting abnormalities of the high voltage power apparatus and providing outputs indicative thereof, and monitoring means responsive to the outputs of the plurality of detectors, the improvement wherein the plurality of detectors are disposed for detecting predetermined phenomena indicative of at least an insulation abnormality, power supply abnormality and foreign matter among abnormalities existing inside of the high voltage power apparatus, and the monitoring means is responsive to the outputs of the plurality of detectors for providing at least one of an output and display of the kind of abnormality detected.
Claim 22
Dependent Claim
108 words
In an abnormality diagnosing system for a high voltage power apparatus having a plurality of detectors for detecting abnormalities of the high voltage power apparatus and providing outputs indicative thereof, and monitoring means responsive to the outputs of the plurality of detectors, the improvement wherein the plurality of detectors are disposed for detecting predetermined phenomena indicative of at least an insulation abnormality, power supply abnormality and foreign matter among abnormalities existing inside of the high voltage power apparatus, and the monitoring means is responsive to the outputs of the plurality of detectors for providing at least one of an output and display of the kind of abnormality detected.
Claim 23
Dependent Claim
82 words
An abnormality diagnosing system according to claim 18, wherein at least a portion of the plurality of detectors are disposed in the high votlage power apparatus, and further comprising local panel means disposed proximate to the high voltage apparatus amplfying the outputs of the detectors, the monitoring means being a central monitoring means disposed at location remote from the high voltage power apparatus, and signal transmitting means being provided for transferring the outputs of the amplifying means to the central monitoring means.
Claim 24
Dependent Claim
25 words
An abnormality diagnosing system according to claim 19, wherein the local panel means further includes means for determining the soundness of the plurality of detectors.
Claim 25
Dependent Claim
28 words
An abnormality diagnosing system according to claim 20, wherein the signal transmitting means includes optical fiber cable means for coupling the local means and the central monitoring means.
Claim 26
Dependent Claim
140 words
In an abnormality diagnosing system for a high voltage power apparatus having a plurality of detectors for detecting an abnormality of the high voltage power apparatus and providing outputs indicative thereof, and monitoring means responsive to the outputs of the detectors for providing an output indicative of the abnormality detected, the improvement comprising that the monitoring means is responsive to the outputs of the plurality of detectors detecting an abnormality occurring inside the high voltage power apparatus for providing at least one of an output and display of the kind of abnormality detected, and an indication of at least one of a continuously useable period of the high voltage power apparatus in accordance with the kind of abnormality detected, and an indication of a repair method and cost necessary for the repair in accordance with the kind of abnormality detected.
Claim 27
Dependent Claim
140 words
In an abnormality diagnosing system for a high voltage power apparatus having a plurality of detectors for detecting an abnormality of the high voltage power apparatus and providing outputs indicative thereof, and monitoring means responsive to the outputs of the detectors for providing an output indicative of the abnormality detected, the improvement comprising that the monitoring means is responsive to the outputs of the plurality of detectors detecting an abnormality occurring inside the high voltage power apparatus for providing at least one of an output and display of the kind of abnormality detected, and an indication of at least one of a continuously useable period of the high voltage power apparatus in accordance with the kind of abnormality detected, and an indication of a repair method and cost necessary for the repair in accordance with the kind of abnormality detected.
Claim 28
Dependent Claim
141 words
In an abnormality diagnosing system for a high voltage power apparatus having a plurality of detectors for detecting an abnormality of the high voltage power apparatus and providing outputs indicative thereof, and monitoring means responsive to the outputs of the detectors for providing an output indicative of an abnormality detected, the improvement comprising that the plurality detectors include at least first detectors and second detectors, and the monitoring means responsive to the outputs of the detectors being one of responsive to the outputs of the first detectors for determining an abnormality and then utilizing the outputs of the second detectors for confirming the determination of the abnormality, and for utilizing the outputs of the second detectors for varying at least one of a standard for determination of the output of the first detectors and a detection interval of the first detectors.
Claim 29
Dependent Claim
141 words
In an abnormality diagnosing system for a high voltage power apparatus having a plurality of detectors for detecting an abnormality of the high voltage power apparatus and providing outputs indicative thereof, and monitoring means responsive to the outputs of the detectors for providing an output indicative of an abnormality detected, the improvement comprising that the plurality detectors include at least first detectors and second detectors, and the monitoring means responsive to the outputs of the detectors being one of responsive to the outputs of the first detectors for determining an abnormality and then utilizing the outputs of the second detectors for confirming the determination of the abnormality, and for utilizing the outputs of the second detectors for varying at least one of a standard for determination of the output of the first detectors and a detection interval of the first detectors.
Claim 30
Dependent Claim
40 words
An abnormality diagnosing system according to claim 23, wherein the first detectors detect the occurrence of an abnormality inside the high voltage power apparatus and the second detectors assist the determination of abnormality by the output of the first detectors.
Claim 31
Independent Claim
101 words
A method of diagnosing an abnormality of a high voltage power apparatus comprising the steps of disposing a plurality of detectors at different parts of the high voltage power apparatus, simulating an abnormality in the high voltage power apparatus and storing an output signal of the detectors of the different parts of the high voltage power apparatus, and determining the present occurrence of an abnormality of the high voltage power apparatus by calculating the degree of analogy between the stored output signal indicative of an abnormality and the detected signal from the detectors at the time of occurrence of an abnormality.
Claim 32
Independent Claim
101 words
A method of diagnosing an abnormality of a high voltage power apparatus comprising the steps of disposing a plurality of detectors at different parts of the high voltage power apparatus, simulating an abnormality in the high voltage power apparatus and storing an output signal of the detectors of the different parts of the high voltage power apparatus, and determining the present occurrence of an abnormality of the high voltage power apparatus by calculating the degree of analogy between the stored output signal indicative of an abnormality and the detected signal from the detectors at the time of occurrence of an abnormality.
Claim 33
Independent Claim
93 words
A method for diagnosing abnormality of a high voltage power apparatus comprising the steps of utilizing a plurality of detectors to detect abnormalities of the high voltage power apparatus and providing outputs indicative thereof by detecting predetermined phenomena indicative of at least an insulation abnormality, power supply abnormality and foreign matter among abnormalities existing inside of the high voltage power apparatus, determining the kind of abnormality detected in accordance with the outputs of the plurality of detectors, and providing at least one of an output and display of the kind of abnormality detected.
Claim 34
Independent Claim
93 words
A method for diagnosing abnormality of a high voltage power apparatus comprising the steps of utilizing a plurality of detectors to detect abnormalities of the high voltage power apparatus and providing outputs indicative thereof by detecting predetermined phenomena indicative of at least an insulation abnormality, power supply abnormality and foreign matter among abnormalities existing inside of the high voltage power apparatus, determining the kind of abnormality detected in accordance with the outputs of the plurality of detectors, and providing at least one of an output and display of the kind of abnormality detected.
References Cited (Backward Citations)
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