Transformer voltage and current transformers are divided into two categories. Voltage transformer can be used for voltage and power measurements in high-voltage and high-voltage power system towards. Current transformers can be used in measuring the exchange of current exchange measurements and power lines to protect electrical drag degrees. BH-0.66-type current transformer current transformer BH-0.66 Scope: BH-0.66 current transformer for indoor type, plastic shell, closed products. Rated frequency 50HZ or 60HZ, rated voltage 0.66KV and below the power system for power measurement, current monitoring and protection. Product complies with IEC60044-1; 2003 and GB1208-2006, standards. Widely used sets of cabinets, the installation method can be fixed and backplane bus bar fixed installation method, suitable for installation in any direction, one wire for busbars or cables. Normal working conditions and installation conditions: a height of not more than 1000 meters above sea level; 2 ambient temperature not higher than +40 degrees photo type, relative humidity of not less than -5 degrees 3 camera style of the surrounding air is not more than 85% (20 photo-style degrees); 4 installation site without seriously affecting the transformer insulation gas, steam, chemical deposition, contamination and other explosive and corrosive media. Note: a current transformer a hole for three-row structure. 2 corresponds to a small current capacity is small than the large current capacity ratio; as 5-10 corresponding 100-600 / 5,600 / 5 corresponds 10VA, 100/5 correspond 10VA