The RS9/9.3 on-load tap changer is a single and three phase tap changer with a varied range of voltage and current variants. The RS9/9.3 tap changer is the most widely used type of all Elprom tap changers and the most popular choice for transformers of the medium power range.
The RS9/9.3 is a reliable, low maintenance tap changer well-suited for various applications in the industry and transmission and distribution grid. It is a highly customizable solution that is designed, manufactured and tested according to the requirements of the International Standard IEC 60214-1.
|Rated current single phase (A)||200, 400, 630, 800, 1200 and 1600 - single phase design for all connection diagrams|
|Rated current three phase (A)||200, 400, 630 - three phase design for regulation at neutral point|
|Rated voltage (kV)||41,5; 72,5; 123; 170; 245 and 300|
|Step voltage (V)||Up to 4000|
|Connection diagrams||With and without coarse and reverse change-over selector|
|Number of steps||Up to 35|
|Carrying flange shape||Round or elliptic|
|Selector switch insulation level||K, L, M, N and P|
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