Single Phase Transformers CL Range Data Sheet Technical data_________________________________________________ Control Transformer Class 1 Isolation Transformer with Earth Screen between Primary and Secondary IEC / BS-EN 61558 TBA TBA 50/60Hz B, F or H ˃ 5 Meg Ω Primary to Secondary. ˃ 2.5kV Primary to Earth ˃ 2.5kV Secondary to Earth ˃ 2.5kV 40° C Standard Primary Voltages Secondary Voltages Frequency Insulation Class Insulation Resistance Dielectric Strength Ambient Temperature Transformer circuit protection Transformers must be protected against short circuit and overload Primary circuit. The primary side of the Transformer should be protected against short circuit thereby cutting the supply voltage in the event of a short circuit fault. The rating of the primary protection device has to take into account the high inrush current during energizing of the Transformer. The table below gives suggested protection values to avoid nuisance tripping on inrush Secondary circuit. The secondary circuit should be protected against short circuit and overload. The value of the protection should be the same or less than the rated output curr

Watts Loss Inrush VA For 10% Volt drop