Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
SYSTEM FOR DETERMINING POSITION OF ABNORMALITY OF GAS INSULATED APPARATUS
Document Type and Number:
Japanese Patent JPH01234016
Kind Code:
A
Abstract:

PURPOSE: To determine the abnormal position of a gas insulating device in a wide range with less number of detectors by generating quasi-troubles at contacts in a state that a site installation is completed, and obtaining the relationship between the output patterns of the detectors and malfunction generating positions.

CONSTITUTION: In order to monitor the malfunction of a substation, detectors S1∼S8 are mounted at the ends of buses 601∼606. The output signals of the detectors S1∼S8 are simultaneously input to an input processor 10, and when no malfunction is recognized at the detection signals, an indicator 50 indicates the state. On the other hand, if a malfunction is indicted, a detection pattern 30 is detected, compared with a standard pattern 20 stored in advance, and the malfunction generating position and size are indicated on an indicator 50 by the pattern 20 having a most similarity.


Inventors:
YAMAGIWA TOKIO
ISHIKAWA TOSHIO
IWAASA SHUZO
OZAWA ATSUSHI
Application Number:
JP5831988A
Publication Date:
September 19, 1989
Filing Date:
March 14, 1988
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
HITACHI LTD
International Classes:
G01R31/08; H02B13/065; H02H5/00; H02H7/00; (IPC1-7): G01R31/08; H02B13/06; H02H7/00
Domestic Patent References:
JPS60120268A1985-06-27
JPS61135277U1986-08-23
Attorney, Agent or Firm:
Katsuo Ogawa (1 person outside)