6 Scary Low Voltage Power Line Ideas > 자유게시판

Accordingly, many modifications could also be made by certainly one of strange skill in the artwork without departing from the spirit and scope of the current invention. The next description is presented to enable one in every of extraordinary skill in the art to make and use the invention and is provided within the context of a patent software and its necessities. Voltage and current are literally inversely proportional to one another. The losses on a transmission line are proportional to the current flowing on the line, so transmitting at high voltage (and hence low present) is useful because it reduces the amount of energy that's lost as a result of resistance in the road itself. Cite:Bochuan Wang, Xixiu Wu, Zhuqing Xia, Xin Yang, and Zhining Yang, "Research on the Characteristics of the Low Voltage Power Line Carrier Communication Channel," Journal of Advances in Computer Networks vol. The smart meter system 50 is a many-to-one information communication topology. On this embodiment, the local server 1 issues a command to the coordinator 2 which executes the command by sending a corresponding data packet wirelessly to the sensible meters 3 by a radio frequency (RF) link, e.g. ZigBee which will or may not assist an trade standard corresponding to IEEE 802.14.5. Then the smart meters 3 send an appropriate response again to the coordinator 2 by the same RF hyperlink.

The current invention is said typically to meters for measuring energy and more significantly to a smart meter system. The sensible meter system 50 comprises a local server 1 related to a coordinator 2 and smart meters 3 (good meter 1-N). In one embodiment, the native server 1 is connected to the coordinator 2 through wires. FIG. 1 is an illustration of good meter system. A transformer-less methodology and system for voltage and current sensing using voltage drops throughout resistors is disclosed. The method contains coupling a resistor voltage divider to a excessive voltage portion of the good meter. The tactic includes coupling no less than one resistor to a high voltage portion of the smart meter. In a first facet a way of sensing present within a wise meter is disclosed. In a second side, a method of sensing voltage inside a wise meter is disclosed. The system and methodology should be simply carried out, price efficient and adaptable to current systems. FIG. 3 is an illustration of circuit design for a present sensing portion of voltage and present sensors 39 in the sensible meter three of FIG. 2 for a single-part power line system.

The ability utilization may also be analyzed to allow system management, e.g. minimize off the facility if necessary. The power utilization could be accessed for example by displaying net pages using any gadget that is connected to the local server or the web. The local server 1 points commands to the coordinator 2 through a coordinator-server interface management register. An optical transistor 57 has a base terminal B that is optically coupled to the IF LED which is a low voltage portion 102. The collector terminal C is linked to the VDD terminal 56. The emitter terminal E is connected to the first terminal of a resistor RL fifty eight within the emitter follower configuration. An optical transistor 12 has a base terminal B that's optically coupled to the IF LED which is a low voltage portion 102. The collector terminal C is related to the VDD terminal 11. The emitter terminal E is connected to the first terminal of a resistor RL 13 in an emitter follower configuration. FIG. 6 is an illustration of circuit for voltage sensing transistor in an open collector configuration with a load resistor related to the collector. FIG. 7 is an illustration of circuit for voltage and present sensing for the emitter follower configuration for a 3-phase power line software.

FIG. 5 is an illustration of circuit for voltage sensing transistor in an emitter follower configuration with a load resistor related to the emitter. The primary terminal of a small shunt resistor RS 7 is linked in sequence with the hot line of energy line pair 6 which is a excessive voltage portion 100; the other power line 5 is the neutral or ground line. It shouldn't be known as two part, as it's one section that has been heart tapped and grounded at the neutral level - it continues to be one part power. In a single phase provide the only required colors are white or grey for the impartial or grounded conductor and inexperienced or bare copper for the earth floor, or grounding conductor. Yes. 230V line to line is taken into account single phase energy. In three part power supplies, low line voltage (220/110) is marked : Phase A -black, Phase B - pink, Phase C - blue. Low line voltage is 220/one hundred ten volt energy. That is made possible by optically isolating a excessive voltage portion of the sensible meter from a low voltage portion. The smart meter three contains a power supply 35, a battery backup 36, a liquid crystal display or LCD show 37, a RF controller System-on-Chip (SOC) 38, and voltage and current sensors 39. The battery backup 36 offers a non-interruptible energy supply within the event of a power failure.