Torque Increase With Alternative Inductance - ESAB A6 VEC Instruction Manual

GB
Table 3
Rated speed
r.p.m.
2000
3000
4000
6000
8000
Table 4
Rated speed
r.p.m.
1000
1500
2000
3000
4000
8000
2.5

Torque increase with alternative inductance

The torque specified in table 3 above is based on a standard PEF or PTF regulator
(not PEH) with a built--in inductance of 5.7 mH.
If used with a separate 25 mH inductance, the torque can be increased by the
percentage given in table 5 below.
Table 5
Armature version r.p.m.
8000
6000
4000
3000*
2000*
*) Should not be used with 25 mH inductance, since the regulation range then is
reduced and the torque increase is minimal.
NOTE!
No increase in torque is permitted with gearbox 672:1.
dgb3d1ea
75 V DC (PEF, PTF)
Gears 672:1 Gears 312:1
50
50
50
50
0
42 V DC (PEG1, PEH)
Gears 672:1 Gears 312:1
50
50
50
50
50
0
Rated speed
Torque Nm
Gears 156:1
38 25
34 23
32 20
25 15
0 0
Torque Nm
Gears 156:1
45 28
43 26
40 24
37 22
30 18
0 0
Torque increase
30%
20%
15%
10%
0%
- - 24 - -
Gears 74:1
18
17
15
11
0
Gears 74:1
18
15
12
10
6
0
Min. speed
50%
30%
15%
10%
0%