8
Instruction and Operation Manual
Misprints and technical changes reserved
6.
Options
o
Brake resistors up to 60kW permanent load in enclosure IP 20. Specific possible after previous
Consulation with TAE.
o
Overcurrent relays for protection of the brake resistor against thermal overstressing. Overcurrent
relays with higher rated current on request
6.1
Overcurrent relay
Rated current in A:
Part.-No:
Rated current in A:
Part.-No:
0,1 - 0,16
36770-A2
1,6 - 2,4
36770-G2
0,16 - 0,24
36770-B2
2,4 - 4
36770-H2
0,24 - 0,4
36770-C2
4 - 6
36770-I2
0,4 - 0,6
36770-D2
6 - 10
36770-K2
0,6 - 1
36770-E2
10 - 16
36770-L2
1 - 1,6
36770-F2
16 - 24
36770-M2
Bracket for Overcurrent relay: Art.-No. 36770-Z2
6.2
Ultrafast semiconductor fuses
Use with Braking chopper:
Fuse value in A A
Part.-No. Fuse
Art.-No. Fuse Breaker 3pol
12262-0F...
50
34606-00
34529-00
12262-1F...
63
34607-00
34529-00
12263-AF...
100
34609-00
34529-00
12263-0F...
100
34609-00
34529-00
12263-1F...
125
34610-00
34529-00
12263-2F...
200
34621-00
34529-01
12264-0F...
250
34622-00
34529-01
12264-1F...
355
34633-00
34529-02
12264-2F...
500
on request
34529-03
7.
Calculation Braking Chopper and Resistor
Basis of calculation:
Constant Brake torque and
linear speed reduction
Example:
Brake torque 100 Nm
Max Speed 2400 min-1
Motor operation time 14 sec.
Brake time 3 sec.
Stop 3 sec.
Chopper voltage 750 V
n[min
-1
]
P[kW]
M+
[Nm]
M-
[Nm]
t
RUN
= 14 s
M
MAX
P
MAX BRAKE
t
BRAKE
=
3 s
t
OFF
= 3 s
n
max
= 2400 min
-1
n
mittel
=1200 min
-1
0
0
0
100 Nm
t[s]
t[s]
t[s]
25,1 kW
