RP-EML Live locking device (hereinafter referred to as this Device) is a key device for switchgears to prevent mis-operation, which is developed by Rolink based on many years of experience in the operation of power equipment.
This device is suitable for all kinds of switchgear isolation switches, earthing switches and other parts that need locking in order to prevent mis-operation. It is an indispensable device in the power grid system.
When the Device is used to lock with the earthing switch, you only need to connect output contacts of the Device in series in the circuit (the contacts are disconnected when the circuit is live; the contacts are connected when the circuit is not live.) When the circuit is not live and the unlocking light is on, you can pull the handle to unlock; when the circuit is live and the unlocking light is off, you cannot pull the handle to lock or open the dust cover.
When the Device is used to lock with disconnectors, you only need to connect output contacts of the Device in series in the circuit (when it's locked, the contacts are disconnected; when it’s unlocked, the contacts are connected.).