Title:
VOLTAGE DETECTION DEVICE AND VOLTAGE DETECTION METHOD
Document Type and Number:
WIPO Patent Application WO/2015/072017
Kind Code:
A1
Abstract:
Provided is a voltage detection device that is for detecting the voltages of the conductors for each phase of an electrical device provided with conductors (1a-1c) for three phases that are provided so as to extend within a grounded tank (5), intermediate electrodes (2a-2c) for the three phases that surround the peripheries of the conductors (1a-1c) for the three phases, and voltage dividing resistors (3a-3c) for the three phases that are connected between the intermediate electrodes (2a-2c) for the three phases and the tank (5), wherein the device is provided with voltage detection units for each phase that are connected to the intermediate electrodes for each phase and the tank (5), and each voltage detection unit for each phase is provided with an intermediate electrode voltage measurement unit for measuring the voltage of the intermediate electrode for the phase of the voltage detection unit, a storage unit for storing a correction coefficient indicating the degree of influence of other phases on the voltage of the intermediate electrode for the phase of the voltage detection unit, and a voltage calculation unit for calculating the voltage of the conductor for the phase of the voltage detection unit using the measured voltage of the intermediate electrode for the phase of the voltage detection unit, which has been measured by the intermediate electrode voltage measurement unit, and the correction coefficient stored in the storage unit.
Inventors:
FUJII SHIGEO (JP)
Application Number:
PCT/JP2013/080921
Publication Date:
May 21, 2015
Filing Date:
November 15, 2013
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
G01R15/06
Foreign References:
| JP2000187045A | 2000-07-04 | |||
| JP2000199774A | 2000-07-18 | |||
| JPH02115770A | 1990-04-27 |
Attorney, Agent or Firm:
SAKAI, HIROAKI (JP)
Hiroaki Sakai (JP)
Hiroaki Sakai (JP)
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