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Switch cabinet status indicator, live display device and fault indicator are two common electrical components in switch cabinet, which can not be distinguished by many novices. Next, we will briefly introduce their respective principles and functions.

The live display of the switch cabinet status indicator is generally installed in the incoming / outgoing cabinet of the switch cabinet, which can visually display whether the current electrical equipment has a voltage device to effectively prevent electrical misoperation. There are three indicator lights on the live display panel, indicating that the round hole under the three phases (phase A is yellow, phase B is green, and phase C is red) is used for the nuclear phase. When the equipment has working voltage, the display window of the display flashes to warn people that the high-voltage equipment has been charged, and there is no indication when there is no power.

The switch cabinet status indicator T type is prompt type, which is used to indicate whether the high-voltage circuit is powered on, and does not have locking function. Q type is mandatory, used to show whether the high-voltage circuit is energized and has a locked output. It is generally used with electromagnetic lock. When the equipment is powered on, the electromagnetic lock remains locked. When the equipment is not powered on, the electromagnetic lock can be opened.

The live display of the switch cabinet status indicator is generally installed in the incoming / outgoing cabinet of the switch cabinet, which can visually display whether the line is faulty. There are three indicators on the fault indicator panel, representing three phases. When the line fails, the current in the line exceeds the set current, or the line is powered off, the display window of the display flashes. If the circuit is normal, the fault indicator does not work and the fault indicator does not light up.

The fault indicator of the switchgear status indicator indicates when the equipment fails. The power on indicator only gives instructions when the equipment is powered on. The logic is just the opposite. We all understand and remember.