IL
44-751-1
Instruction
Leaflet
Page 5 November, 2001
Construction Details and Features
Basic Information
The DTW, de-energized tap changer, is constructed from six major components: 1) Tap deck, 2)
Worm gear set, 3) Moving contacts, 4) Stationary contacts, 5) Mounting post and 6) Drive shaft
and External operating mechanism. These individual components (except number 6) are shown
in Figure 3 and Figure 4.
1
3
4
5
Contact Drive
Shaft
Tap Deck
Plate
Moving Contact
Assembly
Stationary
Contact
Copper Mounting
Post
Silver/Copper
Contact Button
Figure 3: Contact structure
Figure 4: Worm gear set, 2), and ball end fittings
