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AC Traction Motor ( DR48/06AZ replaceable with ABB*** Part No. 6FRA6068 ) |
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Traction motor type DR48/06AZ is a six pole forced
ventilated, 3-phase squirrel-cage induction motor,
is capable to deliver adequate starting torque
at a low starting current for hauling a 6000 HP
AC freight Locomotive, likes of WAG9 of Indian
Railways. Some of the special features of the
motor are: |
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Laminated frameless stator construction with no separate housing. |
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Use of zirconium copper (CDA Alloy No.
C15000), a material with high tensile strength
at elevated temperature, for rotor bars and
short circuit ring, brazed together. |
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Stator coils with heat sealed, void-free polyimide
(KAPTON-CR) covered copper conductors. |
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Silicone bonded glass backed mica paper for
ground insulation with KAPTON film slot liners,
on stator winding.
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SG Iron cast end brackets for better mechanical strength.
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VPI in H62 silicone varnish (Class 220) of M/s
Wacker Silicones, for void free insulation, with
anti-tracking silicone varnish coating on wound
stator for environmental protection.
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Halogen-free silicone rubber cables for supply
connections. |
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Plug in pinion at drive end with oil lubrication
for smooth transmission of torque to the Loco
wheels for higher tractive effort. |
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Technical Details |
DR PART NO. |
DR48/06AZ |
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| Technical Details |
Continuous Rating
(Nominal Values) |
Maximum Rating |
Power (KW) |
850 |
850 |
Voltage (V) |
2180 (L-L) |
2180 (L-L) |
Current (A) |
270 |
393 |
Frequency (Hz) |
65 |
132 |
Connection/Pole |
Y/6 |
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Insulation Class |
200 |
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Slip |
0.013 |
0.021 |
Slip Speed (rpm) |
1283 |
2584 |
Synchronous Speed (rpm) |
1300 |
2640 |
Torque (N-m) |
6330 |
9200 |
Efficiency (%) |
95 |
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kW / Weight Ratio |
0.404 |
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Ventilation (forced) |
1.35 cu.m/sec at 150 mmWG |
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Gear Ratio |
15:77 plug in pinion |
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Standard Applicable |
IEC 60349-2:2002 |
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Motor weight bare (kg) |
2100 |
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