Circuit breaker control device

• US 4,456,832 A
• Filed: 08/14/1980
• Issued: 06/26/1984
• Est. Priority Date: 01/08/1979
• Status: Expired due to Term

• Current Assignee: James B. Newport, Richard H. Greer
• Original Assignee: Southern California Edison Company (Edison International)
• Inventors: Newport, James B., Greer, Richard H.
• Primary Examiner(s): Schreyer, Stafford D.
• Application Number:
  US06/178,183
• Time in Patent Office: 1,412 Days
• Field of Search: 307/116, 307/35, 307/38, 307/39, 307/40, 307/41, 307/85, 307/86, 361/153, 361/182, 361/191, 361/156, 340/310 A, 340/310 R, 335/14, 335/20
• US Class Current: 307/38
• CPC Class Codes: H02J 2310/60 Limiting power consumption in the network or in one section of the network, e.g. load shedding or peak shaving
• 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

An energy-efficient device for managing residential loads on electrical generating systems is disclosed. The device is suitable for installation in existing circuit breaker load center panels at low labor costs, to be signalled from Load Management System(s), of various types. The device of the present invention causes the circuit breaker to disconnect and reconnect thereby controlling power consumption during peak periods of energy use. Various alternative embodiments are also disclosed.

Claims

1. Load management apparatus including

a manually operable switching section and

a remotely operable management section;

said switching section including interrupter contact means,

a manually operable spring powered first mechanism connected to said interrupter contact means for opening and closing thereof,

fault responsive trip means operatively connected to said first mechanism to operate the latter for opening of said interrupter contact means upon the occurrence of predetermined fault currents at said switching section;

said management section including

mechanical main contact means connected in series circuit with said interrupter contact means and an electrical load energized through said apparatus,

biasing means normally maintaining said main contact means closed,

remotely controlled electrically powered operator means operatively connected to said main contact means for selectively operating the latter to open said main contact means;

said switching section and said management section constituting first and second modules respectively;

said first and second modules including respective first and second housings of substantially equal widths stacked side by side.

2. Load management apparatus as set forth in claim 1 in which the housings have similar profiles.

3. Load management apparatus as set forth in claim 1 also including latch means for maintaining said main contact means open after opening thereof by said operator means.

4. Load management apparatus as set forth in claim 3 also including remotely controlled electrically powered release means operatively connected to said latch means for selectively unlatching the latter thereby permitting the biasing means to close said main contact means.

5. Load management apparatus including

a manually operable switching section and

a remotely operable management section;

said switching section including interrupter contact means,

a manually operable spring powered first mechanism connected to said interrupter contact means for opening and closing thereof,

fault responsive trip means operatively connected to said first mechanism to operate the latter for opening of said interrupter contact means upon the occurrence of predetermined fault currents at said switching section;

said management section including

main contact means connected in series circuit with said interrupter contact means and

an electrical load energized through said apparatus,

a spring powered second mechanism connected to said main contact means for opening and closing thereof,

remotely controlled electrically powered operator means operatively connected to said second mechanism for selectively operating the latter to open and close said main contact means.

6. Load management apparatus as set forth in claim 5 in which the switching and management sections constitute

first and second modules, respectively;

said first module including

a relatively narrow first housing wherein said interrupter contact means, said first mechanism and fault responsive trip means are mounted;

said second module including

a relatively narrow second housing wherein said main contact means, said second mechanism and said operator means are mounted;

said housing being substantially of equal width and having generally similar profile dimensions.

7. A circuit breaker including

a cooperating contact means,

a manually operable overcenter spring-type operating mechanism for opening and closing said contact means,

automatic trip means operatively connected to said operating mechanism and operative responsive to predetermined fault current conditions to actuate said operating mechanism for opening said contact means,

auxiliary means including a first section operable independently of said operating mechanism and said trip means to open said contact means responsive to a first control signal generated remote from said circuit breaker.

8. A circuit breaker contact as set forth in claim 7 in which

the first section of the auxiliary means is operable from a first to a second position upon receipt of the first control signal,

said auxiliary means also including a second section for maintaining said first section in said second position, said contact means being held open by said first section when the latter is in said second position,

said second section being releaseable to permit said first section to return to said first position wherein said operating mechanism may close said contact means.

9. A circuit breaker contact as set forth in claim 7 in which the first section of the auxiliary means includes

a solenoid having a coil and an armature movable from a first to a second position upon energization of said coil to act directly on the contact means for opening the latter responsive to receipt of said first control signal.

10. A circuit breaker contact as set forth in claim 9 in which

the auxiliary means also includes a second section for maintaining said armature in said second position,

said second section being selectively releaseable to permit said armature to return to said first position wherein said operating mechanism may close said contact means.

11. A circuit breaker contact as set forth in claim 9 in which the contact means includes a movable contact mounted at one end of a moveable contact arm, said armature when in said second position operatively engaging said contact arm.

12. A circuit breaker contact as set forth in claim 7 also including

a single insulating housing wherein said contact means, said operating mechanism, said automatic trip means and said auxiliary means are disposed.