LSZ one-piece three phase current transformer is suitable for installation in 
the ring net switch cabinets and threephase casing  on the main column switch , 
for the three phase current and zero sequence current  measuring and protection , 
also be used for more cablecircuit of zero sequence current measurement and protection.
The series of zero sequence current transformer core and secondary windings
is made of high quality epoxy resin vacuum casting in the fire retardant plastic casing, which has the characteristic of moisture proof, stable performance and dispensing with maintenance.
 LDK open-core current transformer is suitable for current measurement 
and microcomputer protection of distribution equipments in 10kV AC power system. 
   It is widely used in not only compact fully insulated ring net switch cabinets such as 
ABB-Safe Ring/Safe Plus, RM6/SM6, SVS, GA/GE in Germany , FB in France, 
but also combined substation and cable takeoff boxes because of its small volume, 
light weight, open feasibility and convenient installment.
 It is very convenient that the transformer can be directly installed at connected 
output and input cables.
 
Technical data
1:Rated frequency:50Hz or 60Hz;
2:Rated secondary current:5A or 1A;
3:Rated short-time thermal current:40kA,1s;
4:Rated continuous thermal current:100%In;
5:Continuous power-frequency voltage 3kV , 1min;
6:standards:IEC 185:1987,GB1208-2006(china),DL/T 725-2000 (china);