JN15-12(7.2)/31.5 Indoor high voltage earthswitch
Model and definition
J:Earth switch
N:Indoor device
15:Design serial number
12(7.2):Rating voltage kV
31.5:Rating short-term acceptable electric current
:Alternate distanceMain applicationJN15-12(7.2)/31.5 indoor high voltage earth switch is using an advanced production process.Its structure is assembled.Through the full assessment,its performance meet the requirements of GB1985-2004<High voltage AC disconnector and earth switch> and IEC62271-102:2002.Suitable for 3-12KV three-phase AC 50Hz power system.It has the ability to short-circuit protection and switching devices within other electrical equipment from damage,also can be used when the HV device do the maintenance
Main features:
1.simple installation,combination with earth swith as a whole,no change the mounting structure of original earth switch.
2.manual and electrical operation switch freely.
3.safe and reliable:The fuction can control and protect the motor.The main technical parameters:
ItemUnitDataRated voltageKV12Rated short-time withstand currentKA31.5Rated duration of short circuits4Rated short-circuit making currentKA 80 Rated peak withstand currentKA 80 Rated insulation levelpower frequency withstand voltage(1min) KV 42 Lightning impulse voltage 75 Mechanical lifetimes 2000