CIRCUIT BREAKER HAVING SEPARATION-TYPE RESTRAINED AND UNRESTRAINED ZONE SELECTIVE INTERLOCK SETTING FUNCTION

Title:

CIRCUIT BREAKER HAVING SEPARATION-TYPE RESTRAINED AND UNRESTRAINED ZONE SELECTIVE INTERLOCK SETTING FUNCTION

Document Type and Number:

Japanese Patent JP2009259809

Kind Code:

A

Abstract:

To provide a circuit breaker system a method having a zone selective interlock function with a separation-type restrained and unrestrained setting capability.

The system and the method include the transmission of a selective interlock signal from a downstream circuit breaker to an upstream circuit breaker in a fault state. The upstream circuit breaker upon receipt of this signal changes the tripping response of the second circuit breaker to a restrained mode. The circuit breakers include functions enabling the user to modify and adjust both restrained and unrestrained trip curves associated with both restrained and unrestrained modes of operation.

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Inventors:

VICENTE NATANIEL BARBOSA
CULLER MARK FREDRICK
LENHART BRIAN PATRICK JR
VALDES MARCELO ESTEBAN

Application Number:

JP2009089696A

Publication Date:

November 05, 2009

Filing Date:

April 02, 2009

Export Citation:

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Assignee:

GEN ELECTRIC

International Classes:

H01H69/01; H01H71/74; H02B3/00; H02H3/093

Domestic Patent References:

JPH09219922A	1997-08-19
JPH03124216A	1991-05-27
JPH09219922A	1997-08-19

Foreign References:

US4266259A

1981-05-05

Attorney, Agent or Firm:

Arakawa Satoshi
Hirokazu Ogura
Toshihisa Kurokawa

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