Anti-interference electricity contactor time delay device

A contactor and auxiliary power supply technology, applied in the direction of circuit devices, electrical components, etc., can solve the problems of high price and achieve the effects of energy-saving control lines, flexible selection and application, and high reliability

Inactive Publication Date: 2015-11-25
SHANGHAI HUAJIAN ELECTRICAL EQUIP
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  • Abstract
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Problems solved by technology

But the disadvantage of this control method is that it is expensive

Method used

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  • Anti-interference electricity contactor time delay device

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Embodiment Construction

[0009] The present invention will be further described below in conjunction with accompanying drawing:

[0010] See attached figure 1 , the main control unit module 11 is the core of the device. The MCU adopts TI's MSP430F249, which has rich internal hardware resources, performs calculations and logic analysis on input signals, and sends out control signals. The AC auxiliary power input module 1 provides security, Pure AC power supply, the auxiliary power supply state detection module 2 converts the auxiliary power supply to realize the measurement of the auxiliary power supply voltage amplitude, and the switching power supply module 3 has an internal energy storage capacitor, which can provide the power required by each module for 10s when the auxiliary power supply is powered off Above, the switching power supply state detection module 4 realizes the detection of whether the switching power supply is in good condition, the pull-in voltage circuit module 5 provides a reliable...

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Abstract

The invention discloses an anti-interference electricity contactor time delay device. The time delay device comprises an alternating current auxiliary power supply input module, an auxiliary power supply state detection module, a switch power supply module, a switch power supply state detection module, a pull-in voltage circuit module, a holding voltage circuit module, a selection control switch module, a button, a display, an alarm, an output module, a contactor coil, a contactor coil operation state detection module and a master control unit module. Setting of delay time of 0.1s to 9.9s, adjusting of a holding voltage of 2.0V to 12V and setting of a power loss voltage and a recovery voltage can be achieved through setting of different parameters, the time delay device has a display, an alarm output and a motion output outlet, therefore functions of an anti-interference electricity contactor time delay module, such as high reliability, flexible selection application, low cost, energy saving and simple control line are achieved, and the purpose of delay time release of contactor functions during interference electricity of the system is achieved.

Description

technical field [0001] The invention relates to a time-delay device for an anti-shaking electric contactor, which relates to the technical field of "anti-shaking electricity", in particular to the technical field of delayed release of continuous power supply of a contactor. Background technique [0002] "Shaking electricity" refers to the phenomenon that the voltage fluctuates greatly due to lightning, short circuit, dual power supply switching, instantaneous fault and other reasons. If the electric shock occurs, the AC contactor coil of general electrical equipment will trip the contactor because the voltage at both ends of the coil is lower than the maintenance voltage, and the main contact will be disconnected, resulting in the shutdown of the machine pump and the power failure of the equipment, which will affect the production. continuity, causing unnecessary economic losses, easily causing production safety accidents, and damaging production equipment. In many enterpri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J11/00
Inventor 王晓辉戴顺辉施红雷彭江
Owner SHANGHAI HUAJIAN ELECTRICAL EQUIP
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