—————— TPD32-EV ——————
268
Example
Motor
P = 30 kW, Armature volts = 420 V, Armature current = 82 A
Loadcycle
The motor is overloaded for 1 s at 180 % of the rated current, then it works at the rated
load for at least 5 s. Four quadrant converter.
Procedure
At first select the dc current according to the motor rated current. Usually it is the motor
rated current. If the determined motor operating point is not below the Overload curve
of the converter, the calculation should be repeated with the next larger converter size.
Converter
TPD32-EV-500/520-110-4B-A
Diagram
= 0.75
for05
Base current
I
dAN
82 A
110 A
=
This means that the diagram for the converters 110 A ... 185 A with a Base current = 75
% has to be considered for the calculation.
Operating point
Basis: rated data of the converter
Overload current = 82A
. 1.8 = 147.6A
for06
= 1.34
for07
Overload current
I
(of converter)
d A N
147.6 A
110A
=
Overload factor
=
= 0.16
for08
Overload time
Pause time + Overload time
1s
5s + 1s
=
1 s
Base current = 75 % I
2,00
1,75
1,50
1,25
1,00
Overload
curren
t
/
I
dAN
dAN
0,1
0,2
0,3
0,4
0,5
0,6
0,7
0,8
0,9
1,0
Overload time / (Pause time + Overload time)
Overload time
Figure 6.14.6.3: Example- Operating point of drive
The calculated operating point is below the corresponding curve for an overload time of 1 s. Therefore the con
-
verter is suitable for the application. The following two settings are possible:
Full load curr
82 A
or
110 A
Enable overload
Enabled
Overload current
180 %
or
134 %
Base current
100 %
or
75 %
Overload time
1 s
Pause time
5 s
n
ote
!
The percentages for
Overload current
and
Base current
are referred to
Full load curr
and
not to the converter rated current!
Содержание TPD32-EV-...-2B
Страница 1: ... Instruction manual Industrial Application DC drives TPD32 EV ...
Страница 62: ... TPD32 EV 62 10 mm 0 4 150 mm 6 150 mm 6 150 mm 6 10 mm 0 4 10 mm 0 4 50 mm 2 Figure 3 3 2 Mounting Clearance ...
Страница 372: ... TPD32 EV 372 9 BLOCK DIAGRAM 9 1 CONTROL BLOCK DIAGRAMS ...
Страница 373: ... Instruction manual 373 ...
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Страница 501: ... Instruction manual 501 APPENDIX 3 ACCESSORIES A3 1 EAM Adapter Kit EAM1579 EAM1580 ...
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