Used for switching position in Motor Test Equipment as well as used for furnace transformers.
Used as the tap changer to adjust voltage of distribution transformers.
Used for switching connections for variety different applications. Could be used for furnace transformers.
Used on Dry network transformers for disconnecting the primary feeder from the transformer and connecting incoming feeder to the ground.
Common Center or Bridging style, used for switching position in Testing equipment, distribution, air-core reactor- wind turbine etc.