Elevator safety arrangement having earth fault detection

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10934133
APP PUB NO 20180057308A1
SERIAL NO

15804583

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A safety arrangement of an elevator and a method for monitoring electrical safety in an elevator system is disclosed. The safety arrangement of an elevator includes a motor drive of the elevator, which motor drive includes a main circuit, an accessible conducting part, which is earthed, an insulator, which is adapted to electrically insulate the aforementioned conducting part from the aforementioned main circuit and also a monitoring circuit, which is configured to determine an earth fault of the aforementioned main circuit occurring via the aforementioned conducting part. The monitoring circuit is configured to form a signal indicating the danger of electric shock in the motor drive of the elevator, if the aforementioned earth fault is diagnosed.

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First Claim

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Patent Owner(s)

  • KONE CORPORATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Aitamurto, Juha-Matti Hyvinkää, FI 40 48
Kattainen, Ari Hyvinkää, FI 119 666
Stolt, Lauri Helsinki, FI 38 176

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