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Electronic module and matched main and subcontact arc-supression method

A technology of electronic modules and auxiliary contacts, applied in circuits, electrical switches, electrical components, etc., can solve the problems of not being able to withstand instantaneous shocks, sudden personal shocks, sudden start of equipment, etc., achieving low prices, good arc suppression effects, Easy-to-use effects

Inactive Publication Date: 2004-11-03
吕宇光 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the electrical switch is turned off, when there is a pulse wave similar to lightning induction in the phase line, the bidirectional thyristor will be turned on immediately, and the power supply will be turned on suddenly, which will cause the equipment to start suddenly, and the person will be hit suddenly, which is unsafe. factor
Also due to the control method of the bidirectional thyristor, it cannot withstand the instantaneous impact of high voltage (exceeding the reverse breakdown voltage) and high current, so it is difficult to use in the field of high voltage and high current.

Method used

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  • Electronic module and matched main and subcontact arc-supression method
  • Electronic module and matched main and subcontact arc-supression method
  • Electronic module and matched main and subcontact arc-supression method

Examples

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0017] Electronic Module Example 1. The electronic module includes two one-way thyristor SCR 1 、SCR 2 , its anode and cathode are connected in antiparallel; the series resistor R between the anode and the control electrode of the thyristor 1 , R 2 , its resistance value can be adjusted between tens of thousands of ohms to hundreds of thousands of ohms. In this example, it is 500 thousand ohms. The turning voltage is adjusted at 50V, and the forward and reverse turning voltages are consistent. The above constitutes the bipolar body. A high-power, non-inductive current-limiting resistor R is connected in series at either end of the bipolar body 3 , and its resistance value ranges from a fraction of an ohm to several ohms, in this case it is 1.8 ohms. The housing of the module is a housing with a suitable shape customized according to the position of...

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Abstract

This invention relates to electronic module and suppressing arc method matched with a primary and secondary contacts containing two single-divection thyristors parallel opposite with its positive and negatiue. The resistors, R1, R2 connected in series between the positive and the control electrode of the thyristor connect in series current-limiting resistor R3 at each end of the two poles to be sealed in an insulating case V and led out by lead wire suitable for the suppressing arc of high voltage large power switches.

Description

technical field [0001] The invention relates to an electronic module circuit and an arc suppressing method cooperating with main and auxiliary contacts, which can be widely used in various electric load switches such as high-current and high-voltage knife switches, circuit breakers and contactors. Background technique [0002] In recent years, electronic circuit arc extinguishing methods, main and auxiliary contact arc extinguishing methods, etc. have appeared, but they are all connected in parallel between the two contacts of the switch. When the switch is broken, the two ends of the line are still carrying high voltage. Voltage and high energy are generated at the power supply end, which will cause instantaneous bypass and shunt misoperation in the case of disconnection, breakdown and short circuit of high-power transistors or varistors, and then burn out to open the circuit. At the moment of breakdown and short circuit and burning open circuit, both ends of the switch wil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H9/30H01H9/42
Inventor 吕宇光
Owner 吕宇光
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