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electronic protection equipment

A technology of electronic protection and equipment, which is applied in the field of electronic protection equipment, and can solve problems such as component failure, unexpected trip events, and work efficiency limitations of electronic protection equipment.

Active Publication Date: 2022-03-01
ABB (SCHWEIZ) AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] However, this solution does not alleviate the above-mentioned problems and may lead to frequent and undesired tripping events of the electronic protection equipment, since it may often happen that some components of the electronic protection equipment experience a brief failure, for example, in the case of a data corruption event under or in case of electromagnetic interference
Clearly, this situation places relevant limitations on the efficiency of the electronic protective equipment

Method used

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Embodiment Construction

[0031] With reference to the figures cited, the invention relates to an electronic protection device 1 associated in operation with an LV electric line 100 .

[0032] The electrical line 100 includes one or more phase conductors P, and preferably a neutral conductor N. As shown in FIG.

[0033] Preferably, the electric wire 100 includes a single-phase conductor P and a neutral conductor N.

[0034] In the following, for the sake of simplicity only, without intending to limit the scope of the invention, the electronic protection device 1 will be described with reference to its installation in an electrical line having a single phase conductor P and a neutral conductor N. As will be clearly understood by those skilled in the art, in practice the wire 100 may have different arrangements for its own conductors as desired.

[0035] The wire 100 is intended to electrically connect a power source SC and an electrical load LD which may be of any type.

[0036] In operation, the elec...

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PUM

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Abstract

The present disclosure relates to electronic protection equipment. An electronic protection device (1) for an LV electric wire (100) comprising one or more conductors (P, N), comprising: One or more pairs of electrical contacts (2) coupled when the protective device is in the closed state and decoupled when the protective device is in the tripped state or the open state; including data processing A control unit (3) of a controller (31) of resources capable of testing the operational status of said electronic protection equipment; signaling comprising one or more signaling devices (71) driven by said controller layout (7). The signaling arrangement comprises a first signaling device (71) adapted to provide an optical signal (L1, L2, L3) indicative of an operating condition of the electronic protection device when the electronic protection device is in a closed state.

Description

technical field [0001] The invention relates to electronic protection equipment for low-voltage power lines. Background technique [0002] For the purposes of this application, the term "low voltage" (LV) relates to operating voltages below 1 kV AC and 1.5 kV DC. [0003] As is known, electronic protection equipment for LV power lines usually includes a circuit breaker equipped with an electronic control unit, usually including a microcontroller. [0004] An electronic protective device is intended to be operatively associated with the conductors of the electrical line and is generally adapted to assume three different operational states, namely a closed state, a tripped state and an open state. [0005] Typically, an electronic protection device operates in a closed state, in which it allows current to flow along the conductors of the electrical line. [0006] Instead, the electronic protection device interrupts the flow of current along the conductors of the wire when it...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02H3/04H01H73/14H01H71/04
CPCH01H71/04H01H73/14H02H3/04H01H2071/042H02H3/00H02H3/044H02H9/042G01R31/3277G05B19/0428G05B2219/24024G08B5/36H02H1/0007H02H1/0092
Inventor A·巴蒂A·库拉V·科兹
Owner ABB (SCHWEIZ) AG