The products have designed base on IEC60044-8, GB/T20840.8-2007&IEC60044-7,GB/T20840.7-2007 standards, and customers special design service. This series are utilized LPCT&Rogowski coil to meter current in circle, conduct Resistor divider to measure voltage. Installed in any switchgear with High tense voltage below 10kV, compatible with electric instrument, digital measure and protective equipment, able to conduct multifunction such as measure, control, protection and data transmission etc simultaneity.
Main technical parameter
1、Rated primary voltage : 35/√3kV
2、Rated primary current : 50-1500A
3、Rated secondary output :
ECT : 4V (measure), 200mV (protection )
EVT : 3.5/√3V, 3.25/√3V or 6.5/√3V
4. Rated Burden: >10kΩ(ECT). >1MΩ(EVT)
5、Rated digital output : 0x2D41( measure),0x01CF(protection)
6、Accuracy for measure winding : 0.2(ECT) ,0.2(EVT)
7、Accuracy for protection winding : 5TPE(ECT)、3P(EVT)
8、Rated frequency : 50Hz
9、Rated insulation level : 40.5/95/200kV
10、Rated short time thermal current : 50-200: 150Ipr, 300-1500A :31.5kA/1S
11、Rated dynamic current : 50-200A :375Ipr, 300-1500A :80kA
12、Ambient temperature : -5℃-40℃(indoor)
13、Ambient humidity : ≤RH95%(25℃)
14、Altitude : ≤ 2000m (custom design)
15、Installation site : indoor