Traction Rolling Stock - Indian Railways Institute of Electrical ...
Traction Rolling Stock - Indian Railways Institute of Electrical ...
Traction Rolling Stock - Indian Railways Institute of Electrical ...
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1) Type & Make : 1) Northey Type 250 RE<br />
M/s Bharat Brakes & Valves Ltd. make<br />
2) VL-30 Type<br />
M/s. SLM-MANEKLAL make<br />
2) Free air delivery at rated speed <strong>of</strong> driving motor 4500 LPM<br />
3) Swept volume at rated speed 166cfm (4700LPM)<br />
4) Design Data<br />
a) Barrel diameter … 9" dia (228.6mm)<br />
b) Rotor diameter … 9" dia (228.6mm)<br />
c) Clearances<br />
i) Between rotor face … (0.002" to 0.004")<br />
and gear case face<br />
(0.05 to 0.10mm)<br />
ii) Between rotor case … Inlet 0.012" (0.28mm)<br />
and end cover Exhaust 0.016" (0.41mm)<br />
0.10mm)<br />
0.15mm)<br />
iii) Between rotor tip … Inlet 0.003" to 0.004"<br />
and rotor case<br />
(0.08 to<br />
… Exhaust 0.005" to 0.006"<br />
(0.13 to<br />
iv) Between Rotor Bodies… 0.005" (0.13mm) maximum<br />
v) Between rotor tip … (0.15" to 0.040")<br />
and rotor inside contour<br />
5) Recommended working vaccum … 54 cms.<br />
6) Maximum vacuum allowed … 58 cm for 1 hour<br />
7) Sump capacity:<br />
Gear case oil capacity<br />
Maximum<br />
… 6.7 liters<br />
… Dip stick level<br />
Gear case oil capacity<br />
Maximum<br />
… 4.87 liters<br />
… Dip stick level<br />
B) Motor<br />
8) Maximum Backlash between gears … 0.004" (p. 10 mm)<br />
1) Type<br />
(1) Squirrel cage induction motor<br />
Bharaj Bijlee make type 56D20-6
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