Providing reliable current sensing with minimal insertion loss, Triad's current sense transformers are used extensively in high-power applications and power transmission lines. Other common applications include wattmeters, watt-hour meters, power factor meters, and protective relays. Our CST Series Low Frequency Current Sense Transformers are ideal for operation between 50 and 60 Hz, while our CST Series High Frequency Current Sense Transformers are designed to monitor current at 250 Hz and higher. The CST206/CST306 Series High Frequency Current Sense Transformers, meanwhile, can operate effectively over a frequency range of 20 kHz to 200 kHz. These frequency ranges cover most of industry’s practical applications.