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Trip unit including separable component to save restore settings, and circuit breaker including the same

A technology for tripping units and circuit breakers, which is applied to the components of protection switches, user interface regulations, parameter calibration/setting, etc., and can solve problems such as laborious re-keying

Active Publication Date: 2014-01-29
EATON INTELLIGENT POWER LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even if the current settings are known, it is laborious to rekey the settings in the replacement trip unit

Method used

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  • Trip unit including separable component to save restore settings, and circuit breaker including the same
  • Trip unit including separable component to save restore settings, and circuit breaker including the same
  • Trip unit including separable component to save restore settings, and circuit breaker including the same

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Embodiment Construction

[0014] As employed herein, the term "number" shall mean an integer of 1 or greater (eg, a complex number).

[0015] As used herein, the term "processor" shall mean a programmable analog and / or digital device that can store, retrieve and process data; computer; workstation; personal computer; digital signal processor (DSP); microprocessor; A controller; a microcomputer; a central processing unit; a mainframe computer; a minicomputer; a server; a networked processor; a programmable logic device (PLD); a combination of logic gates; or any suitable processing device or device.

[0016] As used herein, the term "set" means a set point, value, value, numeric or Boolean state, character(s) such as alpha character(s) and / or alphanumeric(s), or a trip unit Other representations of the operating characteristics and / or user interface configurations of the Non-limiting examples of settings include: system data; current curve set point values; voltage set point values; settings for alarms...

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Abstract

A circuit breaker includes separable contacts, an operating mechanism to open and close the contacts, and a trip unit cooperating with the operating mechanism to trip open the contacts. The trip unit includes a first component having a processor and a first memory storing a first set of a plurality of trip unit settings, and a second component of the trip unit. The second component is separable from the first component or the trip unit, and includes a second memory storing a second set of a plurality of trip unit settings. The second component saves the first set of the plurality of trip unit settings as the second set of the plurality of trip unit settings in the second memory, and restores the second set of the plurality of trip unit settings in the first memory of the first component or of another first component of another trip unit.

Description

technical field [0001] The disclosed concepts generally pertain to trip units, and more particularly relate to trip units that include multiple trip unit settings. The disclosed concept also pertains to a circuit breaker including a trip unit. Background technique [0002] Many of today's relatively large circuit breakers include relatively complex electronic trip units that are field replaceable. Often, the number of adjustable settings is large enough that providing mechanical adjustment of the various settings is impractical. The settings are adjusted electronically (eg via an operator panel on the trip unit, via an external programming device, remotely via a communications network (eg fieldbus)). In turn, the settings are stored electronically in the trip unit. [0003] When a trip unit fails and thus must be replaced, it is often difficult or impossible to determine or retrieve the current settings stored in the failed trip unit. Even if the current settings are kno...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H3/02H02H7/22H02H3/00
CPCH01H2071/006H01H71/123H02H7/261H02H3/006
Inventor J·C·施洛特尔A·A·安德森R·P·什瓦奇
Owner EATON INTELLIGENT POWER LTD
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