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Circuit-breaker and mobile device

A mobile device and circuit breaker technology, applied in the field of computer-readable media, can solve the problems of checking protection equipment/circuit breakers, high cost, and inability to check all functions, and achieve the effect of simple inspection and simple implementation

Pending Publication Date: 2021-03-30
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The above-mentioned test methods have the following problems: they are either expensive (primary current test, dismantling the trigger unit for secondary testing with the aid of costly test instruments), or they cannot check all functions (testing with the help of trigger commands), so that only the Small, incomplete parts of the function trigger chain
[0011] Furthermore, more and more complex protection algorithms are implemented in protective devices / circuit breakers, which can no longer be checked by feeding in simple current and voltage signals

Method used

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  • Circuit-breaker and mobile device
  • Circuit-breaker and mobile device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0054] figure 1 A circuit breaker LS according to the invention for a low-voltage circuit (in the example a three-phase AC circuit with three phase conductors L1, L2, L3 and a neutral conductor N) is shown with:

[0055] - first connections LE1 , LE2 , LE3 , LEN for the low-voltage circuit, eg on the housing GEH, via the main current paths (inside the housing) HB1 , HB2 , HB3 , HBN and eg on the housing GEH Second connectors LA1, LA2, LA3, LAN connections for low-voltage circuits on the GEH;

[0056] - contact system KS, which can interrupt the main current paths HB1, HB2, HB3, HBN in order to cause interruption of the low-voltage circuit;

[0057] - a sensor unit SI which detects the current or other electronic parameters of the main current paths HB1, HB2, HB3, HBN or at least one main current path or low voltage circuit;

[0058] - Electronic triggering unit ETU (control unit), which is connected to the sensor unit SI and the contact system KS, and causes the main current...

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Abstract

The invention relates to a circuit-breaker that includes an electronic trip unit, which initiates an interruption or reduction of the current flow in a low-voltage circuit when current or current-timelimits are exceeded in the low-voltage circuit. The electronic trip unit includes at least two processors that independently check whether current or current-time limits are being exceeded. A test signal is fed to the circuit-breaker via a first communication interface, which is fed to one of the two processors during operation so that a test of the circuit-breaker is carried out during operation, while an active protection is provided with regard to the exceeding of current or current-time limits.

Description

technical field [0001] The invention relates to a low-voltage circuit breaker according to the invention, a mobile device according to the invention, a method according to the invention for a low-voltage circuit breaker, a computer program product and a computer-readable medium. Background technique [0002] A circuit breaker is a protective device that functions like an insurance device. The circuit breaker monitors the current flowing through the circuit breaker via the conductor and interrupts to the energy sink when a protection parameter such as a current boundary value or a current-time period boundary value (i.e. when there is a current value for a certain period of time) is exceeded The flow of current or energy at a point or consumer is called triggering. Interruption is achieved, for example, by opening the contacts of a circuit breaker. In contrast to fuses, these protection parameters or response values ​​are adjustable in the case of circuit breakers, for exam...

Claims

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Application Information

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IPC IPC(8): G01R31/327
CPCG01R31/3277H01H71/123H01H2009/0083G01R19/252H01H71/025G01R19/2509
Inventor M.布鲁尔C.博尔索尼M.格斯特纳I.雅库博斯基
Owner SIEMENS AG
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