COMMAND AND PROTECTION AGAINST SUB AND ABOUT VOLTAGE WITH TWO STAGES FOR RESIDENTIAL AND COMMERCIAL LOW VOLTAGE ELECTRICAL NETWORK

摘要

abstract o? Two-stage under and over voltage control and protection for residential and commercial low voltage two-phase mains? The present invention provides three-stage under and over voltage control and protection for residential and commercial low voltage two-phase mains for the protection of electro-electronic equipment against voltage surges and thereby extending their service life. the equipment is composed of electronic and electromechanical components according to the pvc control box design where the contactor is located? contactor box design, pvc control box design arrangement of signaling? drawing of the arrangement of the components in the pvc box "layout drawing", block diagram drawing "diagram - 1", electrical surge protection circuit diagram "diagram - 2", power circuit diagram "diagram 3", diagram of the protection circuit missing the neutral? diagram? 4 ', circuit diagram of the first two-phase main stage' diagram - 5 ', diagram of the second single phase' diagram - 6 ', alarm circuit and emergency actuation diagram' diagram - 7 ' circuit diagram of the two-phase first main stage, second three-phase second stage, alarm and emergency actuation "diagram - 8". Two-stage under and over voltage control and protection for low voltage residential and commercial two-phase power network The present invention of the three-stage under and over voltage control and protection for low voltage residential and commercial two-phase power network protection of electro-electronic equipment against voltage surges and thereby increasing their service life. the equipment is composed of electronic and electromechanical components according to the pvc control box design where the contactor is located? contactor box design, pvc control box design arrangement of signaling? drawing of the arrangement of the components in the pvc box "layout drawing", block diagram drawing "diagram - 1", electrical surge protection circuit diagram "diagram - 2", power circuit diagram "diagram 3", diagram of the protection circuit missing the neutral? diagram? 4 ', circuit diagram of the first two-phase main stage' diagram - 5 ', diagram of the second single phase' diagram - 6 ', alarm circuit and emergency actuation diagram' diagram - 7 ' circuit diagram of the two-phase first main stage, second three-phase second stage, alarm and emergency actuation "diagram - 8".