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Control method and system for external load switch of electric energy meter

A technology of control system and load switch, applied in general control system, control/regulation system, program control, etc., can solve problems such as reducing the risk of truncation of pull-closing signals

Inactive Publication Date: 2018-11-30
AKSU POWER SUPPLY COMPANY STATE GRID XINJIANG ELECTRIC POWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, the object of the present invention is to provide a control method and system for an external load switch of an electric energy meter, so as to solve the problem that the existing external load switch of an electric energy meter can be blocked by cutting off the closing signal. The technical problem of the electric meter outputting the closing signal to the external load switch, so as to reduce the risk of the closing signal being cut off from the source

Method used

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  • Control method and system for external load switch of electric energy meter
  • Control method and system for external load switch of electric energy meter
  • Control method and system for external load switch of electric energy meter

Examples

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Embodiment 1

[0026] figure 1 It is a schematic diagram of a control system of an external load switch for an electric energy meter according to an embodiment of the present invention, as shown in figure 1 As shown, the control system of the external load switch of the electric energy meter includes: a wireless communication module 10 , a microprocessor 20 , an opening and closing device 30 and a voltage sampling module 40 .

[0027] Such as figure 1 As shown, the wireless communication module 10 is connected to the microprocessor 20, the output terminal of the microprocessor 20 is connected to the input terminal of the opening and closing device 30, and the output terminal of the opening and closing device 30 It is connected with the load, and the voltage sampling module 40 is connected with the outlet terminal of the external load switch.

[0028] Specifically, the wireless communication module 10 is used to obtain the switching signal sent by the electric energy meter;

[0029] The mi...

Embodiment 2

[0050] According to an embodiment of the present invention, a control method for an external load switch of an electric energy meter is also provided. It should be noted that the steps shown in the flow chart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions , and, although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0051] image 3 It is a flow chart of a control method for an external load switch of an electric energy meter according to an embodiment of the present invention, which is applied to the control system for an external load switch of an electric energy meter described in the first embodiment above, such as image 3 As shown, the control method includes the following steps:

[0052] Step S302, obtaining the switching signal sent by the electric energy meter;

[0053] Step S304, p...

Embodiment 3

[0073] Figure 4 It is a flow chart of an optional control method for a load switch with an external electric energy meter according to an embodiment of the present invention.

[0074] Such as Figure 4 As shown, a pull-on operation process of the external load switch of the electric energy meter is described as follows:

[0075] (1), the wireless communication module of the electric energy meter and the wireless communication module of the external load switch are paired and authenticated;

[0076] (2), the wireless communication module of the external load switch receives the switch-on signal sent by the electric energy meter;

[0077] (3), the microprocessor processes the closing and closing signal;

[0078] (4), the microprocessor sends an execution operation instruction to the opening and closing device, so that the opening and closing device performs the opening and closing operation based on the operation instruction;

[0079] (5) The microprocessor returns the oper...

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Abstract

The invention relates to a control method and system for an external load switch of an electric energy meter, and relates to the field of intelligent switches. The control system comprises a wirelesscommunication module, a microprocessor, a breaking-closing device and a voltage sampling module, wherein the wireless communication module is used for acquiring a pulling and closing signal sent fromthe electric energy meter, the microprocessor is used for processing the pulling and closing signal and executing an operation instruction to the breaking and closing device according to a processingresult, the breaking and closing device is used for executing corresponding pulling and closing operation according to the operation instruction, and the voltage sampling module is used for acquiringa voltage value of an outgoing line end of the external load switch. By the control system, the technical problem that an ammeter can be prevented from outputting the pulling and closing signal to theexternal load switch by the external load switch, employing a mode of cutting off a pulling and closing control signal line and a feedback signal line, of a traditional electric energy meter is solved.

Description

technical field [0001] The invention relates to the technical field of intelligent switches, in particular to a control method and system for an external load switch of an electric energy meter. Background technique [0002] When the electric energy meter uses a built-in external load switch, the maximum current shall not exceed 60A. When the current exceeds this current value, the electric energy meter shall use an external load switch. At present, the external load switch watt-hour meter adopts the wiring method to control the opening and closing of the external switch: the wiring drawn from the trip terminals 5 and 6 of the watt-hour meter (the three-phase watt-hour meter is 13, 14 and 15) is connected to the input terminal of the external load switch. Output a pair (two sets of three-phase watt-hour meters) passive non-polarity switch control signals to control external load switches. In this connection mode, the user only needs to cut off the control signal line and th...

Claims

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Application Information

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IPC IPC(8): G05B19/042G01R11/02
CPCG01R11/02G05B19/042
Inventor 王志军戴晓非蹇照民郑雷李燕军张引兄宋锡强杨草田王俊杰
Owner AKSU POWER SUPPLY COMPANY STATE GRID XINJIANG ELECTRIC POWER
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