Manual cage de-energized tap changer series

The series is a non-excitation tap-changer for oil-immersed no-load voltage regulating transformer, which adopts vertical and horizontal cage structure. According to the different internal structures, the switch conversion mode can be divided into linear modulation, single-bridge jumping, double-bridge jumping, Y-△ conversion, series-parallel conversion, forward and reverse modulation, etc. There are two types of installation methods for switches: box top type and bell type. The switch can be widely used in power, rectifier, electric furnace and other transformers with rated frequencies of 50Hz and 60Hz, rated voltages of 35kV, 66kV, 110 kV, and rated currents of 125A~2000A. This switch must be operated under the condition that the transformer is not excited!