Traction Rolling Stock - Indian Railways Institute of Electrical ...

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A.C. LOCO EQUIPMENTS 1.1: ROOF EQUIPMENT 1.1.1: PANTOGRAPH Name of Suppliers : M/s J. Stone & Co (India ) Ltd. Type : AM 12 Technical Data : 1. Minimum air pressure for complete extension - 4.5 kg/cm 2 . 2. The Pantograph starts to lower between - 3 and 3.5 kg/cm 2 . 3. The articulated system is designed to allow an extension of 2.46 meters. 4. A raising time included between 6 and 10 secs, from the moment one feeds the pantograph with compressed air, until the moment when the pantograph reaches an extension of about 1.5 meters. 5. A lowering time below or equal to 10 secs, from the moment one drains the feeding pipe unit till the moment when the pantograph is folded on its stops, starting from an extension of 1.5 meters. 6. The maximum height is 2460 + 0 mm – 20 mm 1.1.2: OPERATION (a) Principle Basically, compressed air raise and the springs lower the pantograph. The sole function of air is to cancel the lowering effort of the springs and it has no direct effect on the pantograph. When the pantograph is working and the air pressure is maintained in the control cylinder, the piston is kept still and the articulated system is entirely free kept raised only by the up-spring device. It therefore, follows freely all the oscillations of the contact wire. Should lack of air occur, the equipment collapses by itself. The whole equipment is alive, its own parts are used as conductors. The current collection is made on the frame with shunts fitted at moving points. To take feeding of compressed air easier, the control cylinder is earthed. (b) Raising Air is admitted in the Servo-motor cylinder (23) (Fig. 1.1.2) the piston (24) (Fig. 1.1.2) compresses the holding down springs (25) and displaces the
Fig. 1.1.2
Page 2 and 3: PREFACE The book on "Traction Rolli
Page 6 and 7: Fig.1.1.3
Page 8 and 9: Leg I A I = 704 cm 2 (Regulating tr
Page 10 and 11: Voltage Primary output : Primary ma
Page 12 and 13: y the main shaft through gear arran
Page 14 and 15: Base load … 500 ohms,300W (12nos.
Page 16 and 17: 1.4.6 Over-voltage Over -voltage in
Page 18 and 19: 2.3 BOGIE COMPONENTS Bogie of a loc
Page 20 and 21: Fig. 2.5. Primary and secondary sus
Page 23: 2.8 BOGIE OF WAG/7 This is a 3 axle
Page 26 and 27: Fig. 1. Single Reduction Gear Drive
Page 31 and 32: FIG.3.6 ROTOR HOLLOW SHAFT DRIVE
Page 34 and 35: 5. POWER CONTROL AND AUXILIARY CIRC
Page 36 and 37: Permanent field weakening resistanc
Page 38 and 39: 5.4.1 Arno converter (CVAR) The sin
Page 40 and 41: pantographs 1 and 2 are lowered. Po
Page 42 and 43: the tap changer comes to a standsti
Page 44 and 45: d) The tap changer GR must be at po
Page 46 and 47: 5.7.3.1 Control of transformer tap
Page 48 and 49: VE2. The limit contacts of 61-62 fo
Page 50 and 51: With multiple unit operation the ma
Page 52 and 53: elay Q48. If the wheels on one bogi
Page 54 and 55:
5.9.1.4 Lamp LSGR (Green) Tap chang
Page 56 and 57:
cabs are controlled by means of the
Page 73 and 74:
6. AIR COMPRESSOR 6.0 INTRODUCTION
Page 75 and 76:
6.3 COMPRESSOR DETAILS Model : TRC
Page 77 and 78:
1) Type & Make : 1) Northey Type 25
Page 79 and 80:
one shaft to the other, and maintai
Page 81 and 82:
7. BRAKE SYSTEM OF ELECTRIC LOCOMOT
Page 83 and 84:
y the driver’s vacuum brake valve
Page 87 and 88:
7.2 DUAL BRAKE SYSTEM ON ELECTRIC L
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is run to maintain vacuum in the sy
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1. MR equalising pipe 2. BC equalis
Page 97 and 98:
7.2.11 Gauges There are five gauges
Page 99 and 100:
akes. e) When Driver makes an emerg
Page 101 and 102:
train. Failure of the orange lamps
Page 104 and 105:
8. MAINTENANCE, AND OVERHAUL SCHEDU
Page 106 and 107:
e made to increase the interval bet
Page 108 and 109:
8.5.2.6 Battery: Check and record b
Page 110 and 111:
cab 1 a) Raising of pantograph. b)
Page 112 and 113:
d) Check containers of batteries fo
Page 114 and 115:
Section E4 Carry out following: a)
Page 116 and 117:
f) Inspect all resistance, includin
Page 118 and 119:
) Check capacitor of headlight stab
Page 120 and 121:
8.11.4.12 Speedometers- Calibration
Page 122 and 123:
8.15.3 One copy of the certificate
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to eliminate the possibility of fir
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invariably be a member of the inqui
Page 128 and 129:
Two capacitors of 0.05 microfarads
Page 130 and 131:
Notch 18 T3 and T8 closed, connecti
Page 132 and 133:
These machines are capacitor start
Page 134:
The main lighting circuits are fed
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