Power adapter for electrical installations and especially domestic installations with so-called carrier current control

• US 4,888,495 A
• Filed: 06/22/1987
• Issued: 12/19/1989
• Est. Priority Date: 06/20/1986
• Status: Expired due to Fees

• Current Assignee: Electricitã© De France, Manufacture D'Appareillage Electrique de Cahors
• Original Assignee: Electricitã© De France, Manufacture D'Appareillage Electrique de Cahors
• Inventors: Tougne, Daniel, Feron, Paul
• Primary Examiner(s): Shoop, Jr., William M.
• Assistant Examiner(s): Logan, Sharon D.
• Application Number:
  US07/064,588
• Time in Patent Office: 911 Days
• Field of Search: 307/39, 307/35, 307/38, 307/40, 307/41, 340/310 R, 340/310 A
• US Class Current: 307/39
• CPC Class Codes: H02J 2310/12 The local stationary network supplying a household or a building
• CPC Class Codes: H02J 3/14 by switching loads on to, or off from, network, e.g. progressively balanced loading
• CPC Class Codes: Y02B 70/3225 Demand response systems, e.g. load shedding, peak shaving
• CPC Class Codes: Y04S 20/222 Demand response systems, e.g. load shedding, peak shaving

Abstract

The power adapter (114) has a power input (17, 18) and a power output (117) connected to a plurality of power consumption points (3, 4, 6, 7, 8, 9, 11) and a load-shedding device so designed that, when the consumed power exceeds a predetermined threshold value, the supply of current to at least a predetermined number (7, 8, 11) of power consumption points is interrupted in cascase in a pre-established order until the threshold value is complied with, whereupon the supply of current to these points is then restored in the reverse order. The load-shedding device includes a transmitting circuit for delivering at the power output (117) control signals to which receiving devices (115) are selectively responsive in order to interrupt or restore the supply of current to at least a predetermined number (7, 8, 11) of power consumption points.

Claims

1. A power adapter comprising:

a power input,

a power output adapted to be connected in use to a plurality of power consumption points,

means for detecting the current through the power input,

means for comparing said current with a threshold,

means for successively disconnecting power consumption points of said plurality in a pre-established order when said current is higher than said threshold and then successively re-connecting said disconnected power consumption points in the reverse of said pre-established order when said current is lower than said threshold,

programming means for programming said pre-established order and for selectively assigning an erasure permission to at least one power consumption point from said plurality independently of said pre-established order,

input means of receiving a signal representing an external condition,

erasing means responsive to said signal for selectively disconnecting said at least one power consumption point upon detection of a predetermined condition of said signal, and

a transmitting circuit which is responsive to the means for successively disconnecting and to the erasing means, for delivering at the power output control signals to which receiving devices are selectively responsive in order to interrupt or restore the supply of current to at least a predetermined number of power consumption points, said receiving devices being connected in series with said points and upstream of these latter.

2. A power adapter including a power input, a power output adapted to be connected to a plurality of power consumption points, and a load-shedding device comprising:

two detection means for detection two parameters related to the value of the power consumption,

receiving devices connected in series with said points and upstream of these latter, and

transmitting means responsive to the two detection means for delivering at the power output control signals to which said receiving devices are selectively responsive in order to interrupt or restore the supply of current to said power consumption points, wherein said transmitting means are adapted to control different consumption points depending upon which of said detection means has activated said transmitting means for controlling interruption and restoration of current to said power consumption points.