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Power parameter measurement assembly

A technology for measuring components and power parameters, used in circuit breaker testing, multi-tester circuits, switchgear status indication, etc., can solve the problems of measurement error, error communication, complicated wiring, etc. , the effect of a wide measurement range

Inactive Publication Date: 2018-11-02
SCHNEIDER ELECTRIC IND SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The cost of solution (1) is very high, and it is not suitable for circuit breakers with thermal magnetic tripping units or magnetic tripping units, and the small current does not work, and the accuracy of electric energy measurement cannot be guaranteed
The wiring of scheme (2) is complicated, and additional voltage and current sampling lines, power supply lines, communication lines, and external current transformers are required
The phase shift caused by the external current transformer and the resulting power energy measurement error are currently not standardized and cannot be evaluated
Therefore, it may cause additional measurement errors due to improper selection of current transformers.
In addition, improper wiring, such as CT secondary lines and voltage lines bundled together, communication lines without good grounding, etc., may cause measurement errors or communication failures under EMC interference
The degree of standardization of wiring mainly depends on the habits and technical capabilities of the workers in the panel factory, which is difficult to control

Method used

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Embodiment Construction

[0039] The structure of the power parameter measurement assembly according to the embodiment of the present disclosure will be described in detail below with reference to the accompanying drawings.

[0040] Such as figure 1 and figure 2 As shown, they respectively show the exploded view of the power parameter measuring assembly according to the embodiment of the present disclosure from two angles.

[0041] According to an embodiment of the present disclosure, the power parameter measurement assembly includes a housing and a wireless measurement module 3 accommodated in the housing, at least one conductor 4, and at least one Rogowski coil 5 (Rogowski coil); wherein The conductor 4 passes through the Rogowski coil 5, and the Rogowski coil 5 measures the current flowing through the conductor 4; the Rogowski coil 5 is connected to the wireless measurement module 3 through a cable 6; One end 4-1 of the body 4 is connected to a load (not shown), and the other end 4-2 of the condu...

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PUM

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Abstract

The invention relates to a power parameter measurement assembly. The power parameter measurement assembly is characterized in that the power parameter measurement assembly comprises a housing as wellas a wireless measurement module, at least one electrical conductor and at least one Rogowski coil which are all accommodated in the housing; the electrical conductor passes through the Rogowski coil;the Rogowski coil measures current flowing through the electrical conductor; the Rogowski coil is connected with the wireless measurement module through a cable; one end of the electrical conductor is connected with a load; the other end of the electrical conductor is connected with the lower-level wiring end of a circuit breaker.

Description

technical field [0001] The present disclosure relates to a measuring device for measuring a circuit breaker, in particular to a measuring assembly for measuring power parameters of a circuit breaker. Background technique [0002] At present, there are two main schemes for the measurement of electrical parameters (electric energy metering) of each power distribution circuit: [0003] (1) The circuit breaker with electronic trip unit provides the measurement function, and the measurement data is transmitted to the gateway through a wired method. [0004] (2) External electric energy meter or power parameter measuring instrument, additional current transformer for signal collection and measurement, and the measured data is transmitted to the gateway through wired mode. [0005] The cost of solution (1) is very high, and it is not suitable for circuit breakers using thermal magnetic tripping units or magnetic tripping units, and the small current does not work, and the accuracy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R15/12G01R31/327H01H71/04
CPCG01R15/12G01R31/327H01H71/04
Inventor S.田石莹李波吕松景王勇
Owner SCHNEIDER ELECTRIC IND SAS