... can protect and survey two voltage trasformaer, which is the single busbar with multistage connection. Application - Voltage Transformer protection & control ... and control scheme online by LAdder Diagrams (LAD) which they are familiar with and as defined in IEC1131-3 ... ) status, real-time waveform, LAD program, rated values, Single Line Diagram, system parameters, etc.- The last 100 pieces of ...