CROSS CURRENT DETECTION DEVICE, CROSS CURRENT DETECTION METHOD, AND ROTOR

Title:

CROSS CURRENT DETECTION DEVICE, CROSS CURRENT DETECTION METHOD, AND ROTOR

Document Type and Number:

WIPO Patent Application WO/2018/158832

Kind Code:

A1

Abstract:

Provided is a cross current detection device comprising: a stator jig 2 into which a rotor 1, which is the object of measurement, can be inserted; a voltage source 6 that applies a voltage to a stator coil 5; and a load motor 10 that rotates the rotor 1. A torque meter 9 measures a feature value of the load motor 10 when the rotor 1 is rotating in the direction opposite to the rotation direction of a rotating magnetic field generated inside the stator jig 2, and a determination device 13 determines that a cross current has occurred in the rotor 1 if the feature value measured by the torque meter 9 exceeds a preset threshold.

Inventors:

TSURUMI YUSUKE (JP)
KOMETANI HARUYUKI (JP)
KAMEYAMA MASAKI (JP)
KAWASAKI KEIU (JP)

Application Number:

PCT/JP2017/007842

Publication Date:

September 07, 2018

Filing Date:

February 28, 2017

Export Citation:

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Assignee:

MITSUBISHI ELECTRIC CORP (JP)

International Classes:

G01R31/34

Foreign References:

JP2001251703A	2001-09-14
JP2006149031A	2006-06-08
JPH05133821A	1993-05-28
JP2010014534A	2010-01-21