Schneider Altivar 61/71 Guía De Explotación página 43

Braking principle and calculation
2) Braking a load moving horizontally with constant deceleration (e.g., carriage)
2
⋅
m v
P
-------------- -
W = b
2
W Kinetic energy
m Mass
v Speed
t Braking time
b
^
Peak braking power
P
b
–
Average braking power during time t
P
b
3) Braking an active load (e.g., test bench)
⋅
T n
b
------------- -
P =
b
9,55
–
P Average braking power during time t
b
T Braking torque
b
n Motor braking speed
42
W
P ˆ
---- -
=
=
t
b
b
[Joule]
[kg]
[m/s]
[s]
[W]
[W]
b
[W]
b
[Nm]
[rpm]
⋅
P 2
b
1757084 11/2009