
312 Electrotechnical Systems
the block Speed Reducer is shown in Figure 5.135b. The input quantities are the shaft
rotation speeds; the outputs quantities are the torques of these shafts. In the model
dialog box, the said parameters of the blocks included in the model are fed in.
Use of these blocks is demonstrated for a model of electrical drive of the rotary kilns
used in cement industry, whose mechanical part structure is illustrated in Figure 5.137.
Nrdl
Reduction
device
Nrdh
Tl
Nm
Nl
Nm
Nl
Shaft Shaft
High-speed shaft
Low-speed shaft
Tl
Tl
TI
Nl
Th
Th
Nrdl
Reduction
device
Nrdh
Tl
Nl
Nm
Nh
Nl
Shaft
Mechanical shaft(a)
Speed reducer
Speed
reducer
Reduction device
Tl