Any scenario where a control power transformer (CPT) is installed requires the additional selection of fuses based on the short-circuit protection requirements of the CPT itself, as well as overload protection requirement...
Power Supplies and UPS
Eaton: How to correctly size and apply uninterruptible power supplies (UPS)
What are UPSs?
Uninterruptible power supplies (commonly known as UPSs) are electrical devices that will continue to provide emergency pow...
Siemens: Control Power Transformer (CPT) Selection Guide
Control power transformers (CPTs) are devices that are imperative in stepping up/down and regulating voltages for industrial control and automation applications. CPTs are particularly effective in stabilizing the control ...