CONTROL ARRANGEMENTS FOR ELECTROMAGNETIC SUITCHES

本发明涉及的是电磁开关的控制装置，它根据断开命令的持续时间（Ｔ１）输出一个具有持续时间（Ｔ２）的断路指令，断开命令是当控制电压低于一预定的下限时，由阈值发生器输出；而断路指令由开关元件（２）产生。断开命令的终端起动具有预置持续时间的控制时间（Ｔ３），若在该控制时间内接通之后产生新的断路状态，则开关元件（２）将最终被切断。开关元件（３）仅在控制电压先超过预置的上限而以后处于预置的下限之上时才接通。故消除了控制电压之干扰对开关触点的影响。 1. A control device for an electromagnetic switchgear, which control device cont...

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Bibliographic Details
Main Authors HARBAUER.WERNER. SEITZ. JOHANN, KOLPIN THOMAS
Format Patent
LanguageChinese
English
Published 18.10.1989
Edition4
Subjects
BASIC ELECTRIC ELEMENTS
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRIC SWITCHES
ELECTRICITY
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
EMERGENCY PROTECTIVE DEVICES
GENERATION
RELAYS
SELECTORS
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Summary:本发明涉及的是电磁开关的控制装置，它根据断开命令的持续时间（Ｔ１）输出一个具有持续时间（Ｔ２）的断路指令，断开命令是当控制电压低于一预定的下限时，由阈值发生器输出；而断路指令由开关元件（２）产生。断开命令的终端起动具有预置持续时间的控制时间（Ｔ３），若在该控制时间内接通之后产生新的断路状态，则开关元件（２）将最终被切断。开关元件（３）仅在控制电压先超过预置的上限而以后处于预置的下限之上时才接通。故消除了控制电压之干扰对开关触点的影响。 1. A control device for an electromagnetic switchgear, which control device contains an operating coil (1) able to be connected to control voltage or able to be separated from this control voltage by way of a first switching element (2) in dependence on the height of the control voltage, and which control device has a hysteresis formation between the ON- and OFF- command, wherein the disconnecting state of the switching element (2) is maintained over a predetermined duration (T2), and the control device, after expiration of the internal OFF-command (9) having a predetermined duration (T1), delivers an OFF-instruction (13) with the predetermined duration (T2) to the switching element (2), characterised in that the OFF-instruction with the predetermined duration (T2) initiates a control time (T3
Bibliography:Application Number: CN19861002390