Current transformer LMK

encapsulatedfor indoor serviceprotection

LMK3-0.66 series transformer is indoors type current transformer,is applicable for circuit of rated frequency 50Hz or60Hz,rated voltage is 0.66kV and below. It is used to transmit signal to measure meter,or relau protection,control device. And it isolates the measure,protect,and control device from high voltage. It conforms to the standard of GB1208-2006. ► Normal operational condition 3.1 - Ambient temperature:-5C to +40C 3.2 - Humidity: up to 80%. 3.3 - Altitude:up to 1000m 3.4 - Installation location:indoors,without métal dust and obvious vibration. ► Main technical parameter 5.1 - Rated voltage:0.66kV 5.2 - Rated frequency:50Hz or 60Hz 5.3 - Rated primary current:10A,12.5A,20A,25A,30A,40A,50A,60A,75A 5.4 - Rated secondary current:1 A or 5A 5.5 - Secondary loading power factor:0.8(delay) 5.6 - Rated output:2.5VA,5VA,10VA,15VA,20VA when rated loading of current transformer is 5VA,or 10VA,the lower limited load is 3.75VA when rated loading of current transformer is above 10VA,or 10VA,the lower limited load is quarter of rated loading. 5.7 - Accurency class:1.0,0.5,0.2,0.5s,0.2s 5.8 - Insualtion resistance:between primary coil and secondary coil or ground: shall higher than 20M. 5.9 - Power frequency withstand voltage should withstand 3kV(effective value)