Instrument transformer VIZ series

cast resinprotectionfor indoor service

Our production line includes single or double pole supporting type voltage transformers for indoor installation. They contain up to three windings for revenue metering and protection purposes. An extra 100/3 V winding can be provided in case the earth fault detection is demanded. Their cores are constructed from high quality siliceoussteel laminations. All active parts are altogether impregnated with cycloaliphatic outdoor resin. If an additional ratio is requested, thiscan be achieved by an intermediate terminal at the secondary coil or an additional coil. Each terminal of the secondary coil can be grounded individually directly to the metal base through a bolt. These types aremaintenancefree,and with respect to their main dimensions many types correspond to the German standards DIN 42600. Highest voltage for equipmct IkV) 12 24 Rated insulation level (kV) 12/28/75 24/50/125 Rated primary voltage (V) from 3000 up to 20000 Rated secondary voltage (V] 100 or 110 Secondary tap upon request Accuracy class 0.2:0.5:1:3 Rated burden of measuring winding (VA) 15 up to 120 Continuous thermal current of secondary winding (A) 00:00 Rated voltage factor and permissible duration 1.2 X Un Class of insulation E Rated frequency (Hz) 16 2/3 ; 50 ; 60 Weight (kg) 18 26 Cantilever strength IN) >5000 Maximum altitude of installation (m) up to 1000 Ambient temperature CO - 5 up to + 50 Specifications IEC 61869-1 & 3.DW 42600 ANSI. BS etc Drawing Nr 2213/12-2213/22 2224/12-2226/12