Title:
LIVE WIRE DIAGNOSTIC SYSTEM AND LIVE WIRE DIAGNOSTIC METHOD
Document Type and Number:
WIPO Patent Application WO/2024/062653
Kind Code:
A1
Abstract:
This diagnostic device compares the frequency characteristics of a current transformer at the start of the operation and the frequency characteristics of the current transformer after the start of the operation, and, when an amount of change thereof has exceeded a prescribed threshold value, detects deterioration of ground insulation of a device.
Inventors:
NUKAGA JUN (JP)
SATOU SHINDAI (JP)
SATOU SHINDAI (JP)
Application Number:
PCT/JP2023/009569
Publication Date:
March 28, 2024
Filing Date:
March 13, 2023
Export Citation:
Assignee:
HITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD (JP)
International Classes:
G01R31/52; G01R27/18; G01R31/00; G01R31/56
Foreign References:
| JP2021103099A | 2021-07-15 | |||
| JP2020020611A | 2020-02-06 |
Attorney, Agent or Firm:
SEIRYO I.P.C. (JP)
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