Two-winding transformer CL series

powercast resinindustrial

Larger single-phase Transformers using UI two limb construction. The Transformers conform to IEC61558 and IEC60076 and are available with a range of voltage and connection options. • Control Transformer : Class 1 Isolation Transformer with Earth Screen between Primary and Secondary • Standard : IEC / BS-EN 61558 • Primary Voltages : To be specified • Secondary Voltages : To be specified • Insulation Class : B, F or H • Insulation Resistance : > 5 Meg Ω • Dielectric Strength : Primary to Secondary >2.5kV Primary to Earth >2.5kV Secondary to Earth >2.5kV • Ambient Temperature : 40℃ 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.