JES15-D-12/31.5 indoor high-voltage eleCTric earthing switch is a new type of earthing switch designed and developed by our company according to the market needs. It is suitable for indoor 3-12KV three-phase AC 50(60) Hz power system and various types of high-voltage Switchgear supporting use. It can also be used for system grounding during maintenance of high-voltage electrical equipment. And can be used in unattended and intelligent substation.
The product conforms to national standard GB1985-2004 "AC high voltage disconnector and earthing switch" and IEC 62271-102-2002. The earthing switch has the advantages of simple and compact structure, light weight, flexible operation, convenient installation, good dynamic and thermal stability, and reliable motorized operation.
As the earthing switch is electric operation, so the manual operation of the chain on the cabinet is consistent with the original style, but some parts have been modified, be sure to use the company's matching chain parts, otherwise the motor of the earthing switch will be burnt down.
If the back door of the middle cabinet needs to have a corresponding interLock with the motorized earthing switch, it must also use our patented technology to install a backdoor interlock, and equip with a travel switch, when the back door is not closed, cut off the operating power of the motorized earthing switch, in order to avoid damage to the motor due to the wrong operation of the electric earthing switch.
When connecting by electrical interlock with the earthing switch, be sure to use the auxiliary contacts of the associated electrical components to disconnect the operating power supply of the earthing switch to achieve electrical interlock. To ensure the reliability of the electrical interlock.