Three-phase off-load tap changer FII-04

for oil-filled transformersindustrial17-positions

Off load tap changer FII for oil immersed Transformers Special manufacturing : Bridge 5 positions Tubular fixed contacts Max 400 A 60 kV Setting 2.5% per position Shield rings on extreme fixed contacts of each phase Shield saucers on moving sets Transmission by cardan, between the tap changer and the control device Available variants : - Voltage classes : 20 kV / 30 kV / 60 kV - 90 kV on special request - Current : Up to 400 A - Fixed contacts tubular, flag type, threaded… - Removable - Silverplating on fixed / moving / common contacts, on request - Diagrams available : Bridge, Series-Parallel, Star-Delta, Common output per phase, star with neutral output, multiple stages… - Number of positions : 2 to 9 positions - Above 9 positions on special request - Control device with handle - Aluminium protective cover on the handle, on request - Control device on the cover or on the wall of the Transformer - Custom length of the shafts - Wheel at human height - Mechanical lock with micro-switch NO/NC - Position signalling micro-switches Direct drive or through coupling operation, from side wall of tank, or cover of Transformer Remote controls at man’s height are available, for shaft crossing on top or bottom of tank, or on cover of Transformer Fixing on tank, or cover, or active part of Transformer : • by bolting of main bracket on tank, cover or active part of Transformer • driving shaft boss to be welded on tank or cover of Transformer, or flange to be bolted on tank or cover of Transformer Length of shaft to be required when ordering (designs may vary depending on required distances) Twinned units on several stages (identical or different) are available