Title:
PHASE ADJUSTMENT SYSTEM FOR POWER MEASUREMENT
Document Type and Number:
Japanese Patent JP2016223993
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a phase adjustment system that not only eliminates the necessity of changing the state (power factor) of a power source in a manufacturing step but also allows phase adjustment through a limited number of power measurements alone in phase adjustment for electric measurement.SOLUTION: The phase adjustment system includes: a reactive power unit measuring a reactive power; and an active power unit measuring an active power value. According to the system, a phase adjustment value is determined in advance based on a reactive power value measured by the reactive power unit by applying a power source with a power factor set at 1.0, and an amplitude adjustment value is determined on the basis of an active power value measured by the active power unit.SELECTED DRAWING: Figure 3
Inventors:
NAKAYAMA ATSUSHI
KAWASHIMA NAOTO
KAWASHIMA NAOTO
Application Number:
JP2015112931A
Publication Date:
December 28, 2016
Filing Date:
June 03, 2015
Export Citation:
Assignee:
OSAKI ELECTRIC CO LTD
International Classes:
G01R21/133
Domestic Patent References:
| JPH03108674A | 1991-05-08 | |||
| JP2010216997A | 2010-09-30 | |||
| JP2008003055A | 2008-01-10 | |||
| JP2004219288A | 2004-08-05 |
Foreign References:
| WO2003060531A1 | 2003-07-24 | |||
| KR20100117788A | 2010-11-04 |
Attorney, Agent or Firm:
Shinjiro Ono
Yasushi Kobayashi
Shigeo Takeuchi
Osamu Yamamoto
Ryota Suematsu
Yasushi Kobayashi
Shigeo Takeuchi
Osamu Yamamoto
Ryota Suematsu