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Intelligent phase change switch control circuit

A technology of a commutation switch and a control circuit, applied in the field of circuits, can solve the problems of complex circuit structure and large arc, and achieve the effects of small size, low cost and simple structure

Inactive Publication Date: 2018-12-04
菏泽峥艳电力科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing commutation switches on the market generally have complicated circuit structures, and the arc light is relatively large when the switch is opened.

Method used

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  • Intelligent phase change switch control circuit
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  • Intelligent phase change switch control circuit

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0029] Below in conjunction with accompanying drawing and specific embodiment the present invention will be described in further detail: Figure 1 to Figure 5 As shown, the intelligent reversing switch control circuit includes a power supply module, a microprocessor module, an electromagnet execution module, and a data acquisition module connected to the microprocessor module, a storage module, a display module, a key processing module, and the opening time Detection module, communication module, clock module;

[0030] Each power supply module in the power supply module is respectively connected to the corresponding module;

[0031] The access port of the data acquisition module is connected to the three-phase electric household terminal and the output end of the current transformer. After internal calculation of the module, the voltage, phase angle, and zero point position of the three-phase electricity are generated, and the phase sequence and load current value are judged. ...

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Abstract

The invention relates to a circuit, and discloses an intelligent phase change switch control circuit which is simple in structure, small in volume, low in cost and high in precision. The circuit comprises a power source module, a microprocessor module, an electromagnet execution module, a data acquisition module, a storage module, a display module, a button processing module, a brake opening timedetecting module, a communication module and a clock module; the data acquisition module, the storage module, the display module, the button processing module, the brake opening time detecting module,the communication module and the clock module are respectively connected with the microprocessor module; each power supply module in the power source module is connected to a corresponding module; the microprocessor module is responsible for data processing and control of other modules; the brake opening time detecting module is used for detecting a time interval between a current working phase brake opening completion time and power-on time of a trip relay, and the microprocessor module is used for adjusting compensation time of next disconnection operation according to a numeric value of adisconnection time interval; the communication module provides an external communication interface and is responsible for data transmission.

Description

technical field [0001] The invention relates to a circuit, in particular to an intelligent phase change switch control circuit. Background technique [0002] Three-phase unbalance refers to the inconsistency of the three-phase current (or voltage) amplitude in the power system, and the amplitude difference exceeds the specified range. The main cause of the three-phase unbalance is the unbalanced three-phase load, which belongs to the problem of fundamental load configuration. Therefore, using a commutation switch to perform phase commutation to make the three-phase line load basically balanced is a relatively common technical means in the prior art. However, the general circuit structure of the existing commutation switches on the market is complicated, and the arc light is relatively large when the switch is opened. [0003] According to the calculation formula of three-phase voltage unbalance quoted in GB / T 15543-2008 "Power Supply Quality Three-phase Voltage Unbalance":...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/26
CPCH02J3/26Y02E40/50
Inventor 秦峥秦传勇
Owner 菏泽峥艳电力科技有限公司
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