CONTROL DEVICE FOR ELECTROMAGNETIC COMMUTATORS

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 c...

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Bibliographic Details
Main Authors SEITZ, JOHANN., KOLPIN, THOMAS, HARBAUER, WERNER
Format Patent
LanguageEnglish
German
Published 18.07.1990
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: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) with a predetermined duration, until the expiration of which the switching element (2) is set finally to the OFF-instruction in the case of an OFF-command following a renewed ON-command.
Bibliography:Application Number: EP19860105592