Electricity: electrical systems and devices – Safety and protection of systems and devices – Feeder protection in distribution networks
Patent
1996-12-16
2000-04-25
Leja, Ronald W.
Electricity: electrical systems and devices
Safety and protection of systems and devices
Feeder protection in distribution networks
H02H 300
Patent
active
060551445
ABSTRACT:
The present invention provides an electrical power distribution system which contains a primary load-center (100) having a common data bus (124) that is adapted to provide two-way digital communication. A number of circuit breakers (120) are coupled to the common data bus (124). Each circuit breaker (120) has a first contact and second movable contact which is moved between a closed position and an open position by an actuator (216). The circuit breaker contains a microcontroller based control circuit (210), which controls the operation of the actuator (216) according to programmed instructions, which may be stored in a memory (234) contained in the circuit breaker or which are communicated to the circuit breaker over the common data bus (124). A status detection circuit (218) coupled to certain nodes within the circuit breaker provides status information about various contacts and current paths contained in the circuit breaker. Circuit breaker status information, configuration information and other desired information is stored in an internal memory (234). The circuit breaker may be adapted to communicate with other circuit breakers within load panel or directly with external devices. To expand circuit breaker capacity, a desired number of secondary load-centers (110a) may be coupled to the primary load center in a manner that will enable the circuit breakers in the secondary load centers to communicate over the common data bus (124).
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Golden Larry I.
Irfan Kareem M.
Leja Ronald W.
Square D Company
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