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Electrical measuring device with celibration device and method for measuring electrical current

A current measuring instrument and electrical measurement technology, applied in the field of electrical measuring instruments, can solve the problems of inaccurate measurement, time cost and economic cost, etc., and achieve the effect of compact structure

Active Publication Date: 2013-03-06
BENDER SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Overall, however, these measures, in addition to inaccurate measurements, have time and economic costs and can only replace recalibration to a limited extent

Method used

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  • Electrical measuring device with celibration device and method for measuring electrical current

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Embodiment Construction

[0021] exist figure 1 The electrical measuring device 2 for measuring current shown in is composed of the electrical measuring instrument 4 of the present invention for measuring current constituted as a hand-held measuring instrument 4 and a divisible current measuring instrument connected to the hand-held measuring instrument 4. Composed of 6 transformers. For connecting the measuring current transformer 6 with the connecting cable 8 , the measuring device 4 has a connecting device 10 designed as a plug-in connection 10 . The hand-held measuring device 4 has a calibration ring 12 which is formed in an arcuate manner as a rigid part in the bottom region of a measuring device housing 14 . In the measuring instrument housing 14, a through hole 16 is formed inside the arc section of the calibration ring 12, through which the separable measuring current transformer 6 passes through the through hole in the calibration position shown in the drawing. Calibration ring 12 conducts a...

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Abstract

The electrical measuring device (4) comprises a connecting unit (10) for connecting a measuring current transformer (6), and a calibration loop (12) for calibration of a measuring unit of the measuring device and connected to the measuring current transformer. The calibration loop is formed as an electrical conductor and comprises the measuring current transformer. The calibration loop is formed as a rigid portion of a measuring device housing (14). The calibration loop is formed as extending or folding portion of the measuring device housing and formed as handle grip. An independent claim is included for a calibration method for calibrating an electrical measuring device.

Description

technical field [0001] The invention relates to an electrical measuring instrument for measuring electric current, which comprises a connection device for connecting a measuring current transformer. [0002] The present invention also relates to an electrical measuring device for measuring current, which comprises the current measuring instrument of the present invention and a measuring current transformer connected to the measuring instrument, and the present invention also relates to a current transformer connected to the measuring instrument The calibration method for calibrating the current measuring instrument of the instrument. Background technique [0003] Electrical measuring systems for measuring currents, which consist of hand-held measuring devices with divisible measuring current transformers as sensors, are known in the art. For the measurement, the measuring current transformer surrounds the electrical conductor and a measuring signal proportional to the condu...

Claims

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Application Information

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IPC IPC(8): G01R19/00G01R35/00
CPCG01R19/00G01R35/005G01R15/18G01R1/22G01R1/04
Inventor 韦斯・卡斯滕迪尔・托马斯
Owner BENDER SA