Portable disconnecting switch opening and closing device
The utility model relates to a portable disconnecting switch opening and closing device. The method is characterized in that the method is characterized by comprising the following steps; the device consists of a control loop and a driving loop, wherein the control loop comprises a closing contactor...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model relates to a portable disconnecting switch opening and closing device. The method is characterized in that the method is characterized by comprising the following steps; the device consists of a control loop and a driving loop, wherein the control loop comprises a closing contactor (KM1) coil and an opening contactor (KM2) coil; one end of a coil of the closing contactor (KM1) isconnected with a live wire (L) of commercial power through an opening contactor normally-closed auxiliary contact (KM2.0) and a closing control button (SA1) in sequence. And two ends of the closing control button (SA1) are connected in parallel with a normally open auxiliary contact of a closing contactor (KM1), and the other end of the coil of the closing contactor (KM1) is connected with a zeroline (N) of the mains supply through an isolating switch mechanism normally closed auxiliary contact (DL) and an isolating switch mechanism travel switch (CK) in sequence. According to the utility model, electric operation of |
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