Method of diagnosing partial discharge in gas-insulated apparatus and partial discharge diagnosing system for carrying out the same
First Claim
1. A partial discharge diagnosing system for diagnosing a partial discharge produced in a gas-insulated apparatus, said partial discharge diagnosing system comprising:
- a partial discharge signal detector for detecting a partial discharge signal representing a partial discharge produced by the gas-insulated apparatus;
a signal analyzer for receiving the partial discharge signal detected by the partial discharge signal detector and analyzing the partial discharge signal;
a diagnostic unit for determining a cause of said partial discharge on the basis of results of analysis made by said signal analyzer, provided with a diagnostic means for multiple conditional branching; and
a display unit for displaying said results of diagnosis;
wherein a diagnostic means of said diagnostic unit makes conditional branching to one of a plurality of second diagnostic means according to result of diagnosis made by a first diagnostic device, and obtains a result of diagnosis made by the second diagnostic means.
0 Assignments
0 Petitions
Accused Products
Abstract
The present invention provides a method of diagnosing a partial discharge in a gas-insulated apparatus and a partial discharge diagnosing system for carrying out the same to achieve highly accurate diagnosis through the detection of a partial discharge signal and diagnosing the partial discharge signal through multiple conditional branching. The partial discharge diagnosing system of the present invention consists: a partial discharge signal detector for detecting a partial discharge signal representing a partial discharge produced in the gas-insulated apparatus, a signal analyzer for receiving the partial discharge signal detected by the partial discharge detector and analyzing the partial discharge signal, a diagnostic unit for determining a cause of the partial discharge on the basis of results of analysis made by the signal analyzer, and a display unit for displaying results of diagnosis. The diagnostic unit is provided with a diagnostic means to make multiple conditional branching to a plurality of second diagnostic apparatus according to result of diagnosis made by a first diagnostic apparatus, and obtains a result of diagnosis made by the second diagnostic apparatus, thereby achieving highly accurate diagnosis by detecting the partial discharge signal and subjecting the partial discharge signal to multiple conditional branching.
30 Citations
21 Claims
-
1. A partial discharge diagnosing system for diagnosing a partial discharge produced in a gas-insulated apparatus, said partial discharge diagnosing system comprising:
-
a partial discharge signal detector for detecting a partial discharge signal representing a partial discharge produced by the gas-insulated apparatus;
a signal analyzer for receiving the partial discharge signal detected by the partial discharge signal detector and analyzing the partial discharge signal;
a diagnostic unit for determining a cause of said partial discharge on the basis of results of analysis made by said signal analyzer, provided with a diagnostic means for multiple conditional branching; and
a display unit for displaying said results of diagnosis;
wherein a diagnostic means of said diagnostic unit makes conditional branching to one of a plurality of second diagnostic means according to result of diagnosis made by a first diagnostic device, and obtains a result of diagnosis made by the second diagnostic means.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A method of diagnosing a partial discharge produced in a gas-insulated apparatus, said method comprising the steps of:
-
detecting a partial discharge signal representing a partial discharge produced by the gas-insulated apparatus by a partial discharge signal detector;
receiving said partial discharge signal detected by the partial discharge signal detector and analyzing the partial discharge signal by a signal analyzer;
determining a cause of the partial discharge on the basis of results of analysis made by said signal analyzer; and
displaying results of diagnosis on a display unit;
wherein the diagnostic unit is provided with diagnostic means that carries out multiple conditional branching, said diagnostic means makes conditional branching to one of a plurality of second diagnostic means according to the result of diagnosis made by a first diagnostic means, and obtains results of diagnosis sequentially made by said second diagnostic means, said diagnostic means executes first a diagnostic operation for discriminating the partial discharge signal detected by the partial discharge signal detector between the partial discharge signal produced in said gas-insulated apparatus and external noise signal. - View Dependent Claims (11)
-
-
12. A partial discharge diagnosing system for diagnosing a partial discharge produced in a gas-insulated apparatus, said partial discharge diagnosing system comprising:
-
a partial discharge signal detector for detecting a partial discharge signal representing a partial discharge produced by the gas-insulated apparatus;
a signal analyzer for receiving the partial discharge signal detected by the partial discharge detector and analyzing the partial discharge signal;
a diagnostic computer that determines a cause of said partial discharge on the basis of results of analysis made by said signal analyzer, said diagnostic computer performing multiple conditional branching; and
a display unit for displaying said results of diagnosis;
wherein said diagnostic computer makes conditional branching to one of a plurality of second diagnostic steps according to a result of diagnosis made in a first diagnostic step by said diagnostic computer, and obtains a result of diagnosis made in the second diagnostic step by said diagnostic computer.- View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
-
-
20. A method of diagnosing a partial discharge produced in a gas-insulated apparatus, said method comprising the steps of:
-
detecting a partial discharge signal representing a partial discharge produced by the gas-insulated apparatus by a partial discharge signal detector;
receiving said partial discharge signal detected by the partial discharge detector and analyzing the partial discharge signal by a signal analyzer;
determining a cause of the partial discharge on the basis of results of analysis made by said signal analyzer; and
displaying results of diagnosis on a display unit;
wherein a diagnostic computer performs multiple conditional branching including conditional branching to one of a plurality of second diagnostic steps performed by said diagnostic computer according to a result of diagnosis made in a first diagnostic step performed by said diagnostic computer, and obtains results of diagnosis sequentially made in said second diagnostic step, said diagnostic computer executes first a diagnostic operation for discriminating the partial discharge signal detected by the partial discharge signal detector between the partial discharge signal produced in said gas-insulated apparatus and external noise signal.- View Dependent Claims (21)
-
Specification