发明名称 |
SAFETY ARRANGEMENT, ELEVATOR SYSTEM, FREQUENCY CONVERTER AND A METHOD FOR MONITORING ELECTRICAL SAFETY IN AN ELEVATOR SYSTEM |
摘要 |
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. |
申请公布号 |
EP2914528(A4) |
申请公布日期 |
2016.06.29 |
申请号 |
EP20130851436 |
申请日期 |
2013.11.01 |
申请人 |
KONE CORPORATION |
发明人 |
KATTAINEN, ARI;AITAMURTO, JUHA-MATTI;STOLT, LAURI |
分类号 |
B66B5/02;H02H3/16;H02H7/12;H02M1/32 |
主分类号 |
B66B5/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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