WARNING: The rope sling may not be at the centre of gravity of the rotor, and
guidance at the ends of the rotor is essential.
As the rotor is fully withdrawn from the stator core, THE FULL
WEIGHT OF THE ROTOR MUST BE SUPPORTED BY THE CRANE. If
the core is allowed to drop more than 6 mm at this point, it will make
contact with the stator windings, and may damage them.
Re-Assembly
Reverse process of the above.
WINDING RESISTANCE CHART
Exciter
Frame
Size
Stator
Rotor
/Ph-Ph
Stator
Winding 211
/Ph
Stator
Winding 17
/Ph
Stator
Winding -19
/Ph
Rotor
1A
1B
1C
1D
1E
1F
1G
27
28
31
0.242
0.252
0.274
1.62
1.13
0.79
0.66
0.41
0.27
0.21
2.16
1.67
1.06
0.87
0.58
0.42
0.31
2.01
1.40
0.95
0.69
0.44
0.33
0.25
0.81
0.88
0.96
1.03
1.18
1.36
1.53
2A
2B
2C
2D
2E
3A
3B
3C
3D
27
31
37
0.064
0.070
0.082
0.21
0.15
0.125
0.08
0.06
0.041
0.028
0.022
0.019
0.30
0.21
0.19
0.12
0.083
0.059
0.043
0.031
0.027
0.24
0.19
0.15
0.10
0.077
0.045
0.033
0.029
0.023
0.58
0.65
0.69
0.82
0.93
1.34
1.55
1.71
1.88
NOTES: 1.
All figures are approximate.
2.
Resistance figures are at 200C.
3.
The figures given are for Series Star Connections on main stator.
4.
For details of voltage ranges available from above Windings - see
page 1.
12
