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Multifunctional measuring device

A measuring device and multi-functional technology, applied in the direction of measuring devices, measuring electrical variables, parts of electrical measuring instruments, etc., can solve the problem that medium voltage switchgear cannot use two independent measuring devices at the same time

Inactive Publication Date: 2013-06-12
ABB TECH AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Small spaces in new medium voltage switchgear may not allow simultaneous use of two separate measuring devices

Method used

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  • Multifunctional measuring device
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Examples

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Embodiment Construction

[0022] figure 1 A multifunctional measuring device 1 is shown, which comprises a housing 3 with an opening 13 for the passage of a primary current conductor. A part of the housing is removed to show the interior of the housing 3 . Inside the housing 3 and around the aperture 13 is accommodated an inner winding 2 for measuring the current in a primary current conductor (not shown). An outer winding 4 is wound on the housing 3 around the opening 13 and is used for further current measurements. figure 1 The embodiment shown above has a ring shape. The inner winding 2 comprises a plurality of coils 5 connected in series, wound on a bobbin arranged in a polygonal shape around the aperture 13 .

[0023] figure 2 A section of the multifunction measuring device 1 is shown. In this embodiment, if image 3 with Figure 4 As clearly shown in , the housing 3 comprises two parts and also includes a positioning / locking mechanism 9 for ensuring the correct placement of said parts and...

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Abstract

A multifunctional measuring device, preferably for measuring a current in a primary current conductor in a medium voltage switchgear, comprising a housing (3) with an aperture (13) for accommodation of the primary current conductor (100), an inner winding (2), accommodated around said aperture (13) inside of said housing (3) for a measurement of current in a primary current conductor (100) and an external winding (4) wound on said housing (3) around said aperture (13) for another current measurement.

Description

technical field [0001] The invention relates to a multifunctional measuring device comprising two current measuring devices in one device. Background technique [0002] Medium voltage switchgear requires control units, protective devices, evaluation devices and calibration devices. The number of these devices has grown together with the development of power supplies, which has created the necessity of introducing considerable current or voltage measuring devices or sensing devices, which may be different for each application. of. It is not possible to place every suitable measuring device in the available space in switchgear or in other applications, let alone the acquisition cost. The main idea of ​​the solution is the possibility to produce a single device that can be accommodated in the available space and that can provide measurements with measuring elements with different parameters, classes or precision designs. WO2009 / 001185 discloses a Rogowski-loop current sensor...

Claims

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Application Information

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IPC IPC(8): H01F5/00G01R15/18H01F38/30
CPCG01R15/181H01F38/30H01F5/02H01F27/2823H01F1/00H01L21/00H01L2221/00G01R1/02
Inventor 拉德克·亚沃拉亚罗米尔·波泽姆尼马雷克·帕夫拉斯
Owner ABB TECH AG