Electric device with differential protection

A protection device and differential protection technology, which is applied in the direction of emergency protection devices, parts of protection switches, electrical components, etc., can solve problems such as breakage and inability to provide connection combs through the bottom

Active Publication Date: 2009-03-18
SCHNEIDER ELECTRIC IND SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0022] A drawback of this arrangement is that the output terminals are not arranged so that electrical connection can be made with the connection comb unless the teeth of the comb facing the output terminals of the circuit breaker part break
In addition, the realization of a differential protection device comprising two separate units requires additional actions by the user and it is not possible to provide this connection comb via the bottom

Method used

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  • Electric device with differential protection
  • Electric device with differential protection
  • Electric device with differential protection

Examples

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Embodiment Construction

[0046] as attached Figure 5 As schematically shown in , an example of the differential protection of the present invention includes a phase circuit (phase circuit) 201 and a neutral circuit 202 in an enclosure 203 . The housing includes two main boards 204 , a first side board 205 and a second side board 206 . Each circuit extends between an input terminal 207 , 208 and an output terminal 209 , 210 . Input terminals 207 , 208 are provided on the second side plate 206 . The output terminals 209 , 210 are arranged for their part on the first side plate 205 .

[0047] The device includes a circuit breaking part 211 and a differential protection part 212 . The differential protection section is separated from the circuit breaker section by a bulkhead 213 which is substantially parallel to the main board 2104 and extends the entire length of the housing 203 .

[0048] In the differential protection part 212, a differential transformer (differential transformer) 221 is provided...

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PUM

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Abstract

The invention discloses an electric device with differential protection, wherein a differential protection device comprises a case (203) including two main boards (204; 302) and output terminals (209, 210, 311, 312) arranged on first side plate (205, 303), also comprises a circuit breaker part (211) including a compartment (235) having walls (241, 331) arranged with at least first via holes (242,243; 332, 333), also comprises a differential protection part (212), separated from the circuit breaker part (211) through separators (213; 351) parallel to the main boards, wherein the walls (241, 331) is basically parallel to a side plate of a case and the connecting conductors get across at least one second via hole arranged on the separator.

Description

technical field [0001] The invention relates to the field of electrical installations with differential protection, such as differential circuit breakers or differential switches, or other combinations of protection or control units such as contactors. [0002] In particular, the invention relates to electrical installations with modular differential protection, comprising: [0003] a phase circuit and a neutral circuit each extending between an input terminal and an output terminal, said terminals being electrically connectable by means of a connecting comb, [0004] a housing comprising two main boards, and first and second side boards on which input and output terminals are disposed, [0005] a circuit breaker section comprising a trip mechanism, a switch mounted on each circuit, an arc chute and a compartment comprising at least the switch and the arc chute, the compartment having a wall provided with at least a first through hole, [0006] a differential protection sect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H83/14
CPCH01H71/002H01H71/025H01H83/226
Inventor 伯纳德·勒博尼古拉斯·伯纳德
Owner SCHNEIDER ELECTRIC IND SAS
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