Title:
DEVICE FOR TESTING BALANCE CHARACTERISTICS OF ZERO-PHASE CURRENT TRANSFORMER
Document Type and Number:
WIPO Patent Application WO/2022/130481
Kind Code:
A1
Abstract:
Provided is a device for testing the balance characteristics of a zero-phase current transformer, the device being capable of testing the balance characteristics using a current source having a low output. The present invention comprises an electric wire (1) installed so as to penetrate a through-hole in a zero-phase current transformer (100) a plurality of times back and forth, a current source (2) that channels a DC current to the electric wire (1), and an ammeter (3) that measures the magnitude of a secondary current in the zero-phase current transformer (100).
Inventors:
YONEDA JIN (JP)
MIYAUCHI TOSHIHIKO (JP)
ONO YUJI (JP)
MIYAUCHI TOSHIHIKO (JP)
ONO YUJI (JP)
Application Number:
PCT/JP2020/046657
Publication Date:
June 23, 2022
Filing Date:
December 15, 2020
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H01F38/28; G01R31/00; G01R31/62; H01F27/00
Foreign References:
| JPH0421980U | 1992-02-24 | |||
| JPS5581934U | 1980-06-05 | |||
| JP2005158810A | 2005-06-16 | |||
| JP2014238313A | 2014-12-18 | |||
| JPS4947120U | 1974-04-25 |
Attorney, Agent or Firm:
PALMO PATENT FIRM, P.C. (JP)
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