Patent
Distribution network power line communication system
Ian A. Whyte,Paul H. Haley +1 more
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TLDR
In this paper, a distribution network power line communication system which includes coupling means for applying a carrier current communication signal to the polyphase primary distribution conductors with a proportional relationship between the signal voltages applied to the various conductors selected to provide a predetermined propagation mode.Abstract:
A distribution network power line communication system which includes coupling means for applying a carrier current communication signal to the polyphase primary distribution conductors with a proportional relationship between the signal voltages applied to the various conductors selected to provide a predetermined propagation mode. Impedance elements are connected between the conductors at selected points remote from the coupling point, such as at the location of unbalanced loads, line taps, branches, capacitor banks, distribution transformers, and other line discontinuities which may cause mode conversion. The impedance elements are selected and connected to re-establish the predetermined propagation mode.read more
Citations
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References
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Patent
Distribution network power line communication system including addressable interrogation and response repeater
TL;DR: In this article, a distribution network power line communication system which is divided into addressable communication zones defined by repeaters located at the distribution transformers of the distribution network is described, where each repeater, when uniquely addressed by an interrogation signal from an interrogating source, strips its address from the interrogation signal and sends the resulting modified interrogation signal to its associated remote communication terminals, bypassing the associated distribution transformer.
Patent
Distribution network powerline carrier communication system
TL;DR: In this paper, a distribution powerline carrier communication system with inductive couplers and frequency translating repeaters is proposed. But the system is not suitable for wireless communication. And it cannot be used to provide distribution automation functions.
Patent
Meter interrogation system having strobe logic control
J Lusk,Rood W,Feldman Herbert L +2 more
TL;DR: In this article, a system adapted for connection to a polyphase power distribution network to interrogate a plurality of separate watt meters and store respective readings from the watt meters is described.
Patent
Carrier current amplifier apparatus
TL;DR: In this article, the authors proposed an apparatus for transmitting signals over power lines by carrier current and more particularly to carrier current apparatus for use in connection with a power system having at least two parallel sets of conductors feeding energy from or to power stations or substations.