Methods and devices for determining a phase to which a receiver device is connected in a polyphase electric power supply system
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United States of America Patent
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May 26, 2020
Grant Date -
Nov 12, 2015
app pub date -
Jan 23, 2013
filing date -
Dec 21, 2012
priority date (Note) -
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Abstract
A polyphase electric power supply system via which powerline communications are set up between a transmitter and a receiver. The transmitter: detects a first zero-crossing of an alternating electrical signal on a phase connected to the transmitter; determines a first instance when the transmitter is expected to transmit a dataset; determines a first time difference between the first zero-crossing and the first instance; includes in the data set information of the phase to which the transmitter is connected, when the first time difference is below a predefined threshold. The receiver: detects a second zero-crossing of the alternating electrical signal on the phase connected to the receiver; detects a second instant when the receiver receives the data set; determines a second time difference between the second zero-crossing and the second instant; determines the phase connected to the receiver, from the second time difference and the transmitter phase information.
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