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Circuit breakers with integrated current and/or voltage sensors

A current and voltage measurement technology, applied to high-voltage air circuit breakers, switches operated by ground fault current, circuits, etc., can solve the problems of long and difficult switch board engineering, reduce user customization work, reduce engineering work, The effect of high integration

Inactive Publication Date: 2007-08-08
ABB (SCHWEIZ) AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This made switchboard engineering extremely long and difficult

Method used

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  • Circuit breakers with integrated current and/or voltage sensors
  • Circuit breakers with integrated current and/or voltage sensors
  • Circuit breakers with integrated current and/or voltage sensors

Examples

Experimental program
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Embodiment Construction

[0024] Referring to Fig. 3, the characteristics of the circuit breaker of the present invention will be described in detail.

[0025] The integrated switch 100 protects and / or operates the power cord 10 with the primary power switch 40 . The optional implementation of the switch with extractable implementation 60 is characterized by the integration of the current 20 and / or voltage 30 measuring device into the functional unit of the switch 100 itself.

[0026] This current and voltage measurement device sends primary current and voltage representative signals 300 and 200 to the on-board switching electronics unit 50 . The electronics unit 50 acquires and processes these signals to perform protection, control, measurement, interlocking, safety and other functions at the local level by sending control and operating commands 400 to the primary switch 40 . As an option, the required information can also be forwarded to other intelligent control and protection units.

[0027] By p...

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Abstract

A circuit breaker (100), in particular a medium voltage circuit breaker, having a current (20) and / or a voltage measuring device (30) integrated thereon. The integration can be functional and / or physical. The functionally integrated current and / or voltage measuring device provides primary current and voltage representative signals to an on-board electronic device (50) in order to realize the measure, process, and protection functions as a whole.

Description

technical field [0001] The invention relates to a circuit breaker, in particular a medium voltage circuit breaker having at least a current and / or voltage sensor integrated thereon. Background technique [0002] A practical solution for primary distribution switchgear for voltage and current measurement is well known and is shown in the single line diagram shown in Figure 1. Current measurements are carried out on each mounting plate by means of current transformers or current sensors according to traditional set-up procedures, in particular to meet protection requirements. Voltage measurement is an optional feature integrated on the backplane when required to utilize a transformer or voltage sensor. Typically, bus voltage measurements are primarily required across the CB and / or on the incoming feeder. [0003] Wherever technology is required to make current and voltage measurements, the required devices are mounted on the mounting plate and the signal representation of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H71/12H02B13/035H01H83/02H01H1/00H01H33/02
CPCH01H33/027H01H71/125
Inventor 亚历山德罗·科隆博卡洛·杰梅彭蒂·梅赫宁克里斯蒂安·罗伊贝尔
Owner ABB (SCHWEIZ) AG
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