Title:
DETECTION DEVICE, DETECTION METHOD, AND VOLTAGE/CURRENT DETECTION DEVICE USING THE SAME
Document Type and Number:
Japanese Patent JP2018136316
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a detection device, a detection method, and a transformer capable of more efficiently and safely detecting a current accompanying partial discharge, and more accurately specifying a position of the partial discharge.SOLUTION: A detection device 700 comprises: an NV sensor 702; a microwave generation part 704 disposed apart from the NV sensor; a laser beam generation part 706; a light reception part 708 for detecting fluorescent light from the NV sensor; and a control part 710 for controlling the laser beam generation part and the microwave generation part. The control part repeats measurement processing for irradiating the NV sensor disposed in a power facility with a laser beam and a microwave to cause occurrence of spin magnetic resonance and transition from a ground state to an excited state, and for acquiring intensity of the fluorescent light detected by the light reception part, and detects a change of a voltage and a current or occurrence of partial charge. When a plurality of NV sensors are provided, the control part specifies an occurrence position of the partial charge from a magnetic field vector calculated by measuring the fluorescent light.SELECTED DRAWING: Figure 17
Inventors:
HAYASHI TSUKASA
KAKI HIROKAZU
KAKI HIROKAZU
Application Number:
JP2018028931A
Publication Date:
August 30, 2018
Filing Date:
February 21, 2018
Export Citation:
Assignee:
NISSIN ELECTRIC CO LTD
International Classes:
G01R31/12
Domestic Patent References:
| JP2016014611A | 2016-01-28 | |||
| JPH10197567A | 1998-07-31 | |||
| JP2009297224A | 2009-12-24 | |||
| JPS6341772U | 1988-03-18 | |||
| JPS5762514A | 1982-04-15 | |||
| JP2005283489A | 2005-10-13 |
Foreign References:
| WO2015107907A1 | 2015-07-23 | |||
| WO2016177490A1 | 2016-11-10 | |||
| WO2018155504A1 | 2018-08-30 | |||
| US20160223621A1 | 2016-08-04 |
Attorney, Agent or Firm:
Satoshi Shimizu
Tetsuji Kamidai
Naomi Kamino
Tetsuji Kamidai
Naomi Kamino