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Circuit breaker with shunt

A technology of circuit breakers and converters, applied in circuit breakers with excessive current, overload protection circuit breakers, switches operated by ground fault current, etc., can solve problems such as increasing the complexity and cost of circuit breakers

Inactive Publication Date: 2002-12-25
EATON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The fact that the leads extend through the isolation plate adds to the complexity and cost of the circuit breaker in terms of both materials and labor

Method used

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  • Circuit breaker with shunt
  • Circuit breaker with shunt
  • Circuit breaker with shunt

Examples

Experimental program
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Effect test

Embodiment Construction

[0028] exist figure 1 and figure 2 A circuit breaker 4 according to the invention is given generally in . The circuit breaker 4 includes an enclosure 8 having an isolating plate 12 carrying a line current path 16 , a neutral current path 20 , an operating mechanism 24 , and a sensor arrangement 28 . As will be explained more fully hereinafter, circuit breaker 4 is configured to interrupt current flow along line current path 16 during designated overcurrent conditions and during certain fault conditions.

[0029] Fault conditions include ground faults and arc faults. As will be described more fully hereinafter, the sensor device 28 is configured to recognize the existence of any such fault condition and to responsively cooperate with the operating mechanism 24 to interrupt the current path through the line when such a fault condition occurs. 16 current.

[0030] like figure 1 As seen in , the line current path 16 is an interruptible path along which current flows through ...

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PUM

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Abstract

A circuit breaker (4) capable of detecting ground faults and arc faults, comprising at least one first converter (90), a line conductor (60) extending through the converter, a circuit board (100), and A pair of sense leads (96) extend between the line conductors and the circuit board. In the first embodiment, the line conductor is a relatively rigid line bus bar, and in the second embodiment, the line conductor is a relatively flexible line shunt (266). A circuit board is placed adjacent to a first side (108) of an isolating plate (12) within the circuit breaker, and sense leads extending between the line conductors and the circuit board do not pass through a plane defined by the isolating plate. The circuit breaker includes a bimetallic strip (52) leaving sense leads extending between the bimetallic strip and the circuit board.

Description

technical field [0001] Generally, the present invention relates to circuit breakers, and more particularly, to a circuit breaker having a bus bar extending through at least one current transformer, in which a current shunt is connected from the bus bar stretch out. Background technique [0002] Various circuit breakers are known and understood in the related art. One of the uses provided by circuit breakers is to interrupt the current on demand or under certain prescribed conditions. [0003] One type of circuit breaker typically used in lower current domestic applications is called a "pocket" circuit breaker. Such pocket circuit breakers are often single pole circuit breakers and are configured to be mounted in a frame which houses a plurality of such pocket circuit breakers. [0004] In their simplest form, pocket circuit breakers include a line terminal to which a power source can be connected, and a load terminal to which an electrical load can be connected. Such poc...

Claims

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Application Information

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IPC IPC(8): H01H83/02H01H71/12H01H71/40H01H83/14H02H1/00
CPCH01H71/123H01H71/40H01H83/144H01H2071/124H01H2083/148H01H2083/201H02H1/0015
Inventor J·S·盖巴森T·N·都德瓦尔
Owner EATON CORP
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