Oil-filled transformer off-load tap changer CA-01

three-phaseindustrialcable-operated

Off load cable operated tap changer for oil immersed Transformers Common output per phase 5 positions 30 A Fixed and common contacts with internal diameter Ø3.1 20 kV Setting 2.5% per position Control device with aluminium knob Available variants : - Voltage classes : 20 kV / 30 kV - Current : 30 A / 63 A / 175 A 30 A / 63 A : Fixed contacts with internal diameter Ø3.1 / Ø5.1 175 A : Fixed contacts removable - Silverplating on fixed / moving / common contacts, on request - Diagrams available : Bridge, Common output per phase, Series-Parallel, Star-Delta, multiple stages… - Number of positions : 2 to 7 positions - Above 7 positions on request - Control device with aluminium knob or handle - Aluminium protective cover on the knob or the handle, on request Cable operation, from side wall of tank, or cover of Transformer Fixing on tank, or cover, or active part of Transformer: • by bolting of control device (hole dia 27 mm to provide in tank or cover) • by bolting of main board on active part, or tank, or cover of Transformer • by linking of these 2 parts by means of cables, sliding inside a metallic flexible tube lined by a plastic flexible, these two tubes to be delivered in rolls, to be cut and adjusted during assembly on Transformer Current ratings: • 30 A with tubular stationary contacts dia 3.1 x 5.0 mm • 63 A with tubular stationary contacts dia 5.1 x 7.0 mm • 175 A with removable contacts (tubular of flat)