SINGLE PHASE POWER FACTOR CORRECTION SYSTEM AND METHOD
First Claim
1. A single phase grid correction system for correcting the power factor of an electrical power grid, said grid having an electricity supply, at least one transmission line connecting said supply to a distribution node, a number of feeder lines radiating from the node, a plurality of consumers connected to each feeder line, said consumers each having individual premises with a single phase consumer electrical panel therein for receiving power from the feeder line, said system comprising:
- a capacitor bank connected to the panel of at least a plurality of said consumers, each capacitor bank being located at a consumer'"'"'s premises, anda remotely controlled switch connected to said capacitor bank for connecting or disconnecting the capacitor bank from the feeder line, said remotely controlled switch including a receiver for receiving instructions for connecting the capacitor bank to or disconnecting it from the feeder line and for operating the switch according to such instructions, said capacitor bank and remotely controlled switch being housed indoors inside the relevant consumer'"'"'s premises proximate to or within said electrical panel.
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Accused Products
Abstract
A single phase grid correction system for correcting the power factor of an electrical power grid. The grid has a generator, transmission lines connecting the generator to distribution nodes, feeder lines radiating from each node, and groups of consumers connected to each feeder line. A capacitor bank is located at a number of consumer'"'"'s premises, indoors, either beside or forming part of the consumer'"'"'s normal single phase electric panel. A set of remotely controlled switches at the consumer'"'"'s premises permits the capacitor banks to be switched in and out of grid connection and also allows non-essential high energy consuming loads, not necessarily inductive, to be switched on and off the grid. The grid correction systemic are widely distributed at consumer'"'"'s premises throughout the grid. By remotely controlling the switches, the utility operator can switch capacitor banks at selected consumer premises in or out of the grid to provide or remove reactive power as needed, and can also selectively remove load from the grid to reduce the likelihood of sudden uncontrollable load shedding.
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Citations
14 Claims
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1. A single phase grid correction system for correcting the power factor of an electrical power grid, said grid having an electricity supply, at least one transmission line connecting said supply to a distribution node, a number of feeder lines radiating from the node, a plurality of consumers connected to each feeder line, said consumers each having individual premises with a single phase consumer electrical panel therein for receiving power from the feeder line, said system comprising:
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a capacitor bank connected to the panel of at least a plurality of said consumers, each capacitor bank being located at a consumer'"'"'s premises, and a remotely controlled switch connected to said capacitor bank for connecting or disconnecting the capacitor bank from the feeder line, said remotely controlled switch including a receiver for receiving instructions for connecting the capacitor bank to or disconnecting it from the feeder line and for operating the switch according to such instructions, said capacitor bank and remotely controlled switch being housed indoors inside the relevant consumer'"'"'s premises proximate to or within said electrical panel. - View Dependent Claims (2, 3, 4, 5, 6, 8)
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7. A method for correcting the power factor of an electrical power grid, said power grid having an electricity supply, at least one transmission line connecting said supply to a distribution node, a number of feeder lines radiating from the distribution node, each feeder line having a plurality of consumers connected thereto, each consumer having premises and a single phase electrical panel within said premises, said method comprising:
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placing a capacitor bank proximate to or within the electrical panel of a selected number of said consumers'"'"' premises, wherein said selected number of consumers'"'"' premises are connected to a number of said feeder lines with said capacitor bank being indoors at the selected number of consumers'"'"' premises, determining whether power factor correction is needed, and if power factor correction is needed, then controlling said capacitor bank to connect said capacitor bank at said selected number of consumers'"'"' premises to the grid or to disconnect said capacitor bank from the grid. - View Dependent Claims (9, 10)
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11. A method for reducing load in a controlled manner in an electrical power grid to reduce the likelihood of uncontrolled load shedding in said grid, said grid having an electricity supply, a transmission line connecting said supply to a distribution node, a number of feeder lines radiating from the distribution node, each feeder line having a plurality of consumers connected thereto, each consumer having premises and a single phase electrical panel within said premises, said method comprising:
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selecting a set of consumers, said set comprising a number of consumers connected to a number of feeder lines, placing a plurality of remotely controlled load connect/disconnect switches adjacent to or within the electrical panels at the premises of said set of consumers with said load connect/disconnect switches being indoors at the consumer'"'"'s premises and being connected to high energy consuming loads at the consumer'"'"'s premises, determining whether load reduction is needed, and if load reduction is needed, then remotely controlling said load connect/disconnect switches to disconnect selected items of the load at the premises of said set of consumers from the grid or to reconnect them to the grid. - View Dependent Claims (12, 13, 14)
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Specification