Cover - Train Lighting - Indian Railways Institute of Electrical ...

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FIG. 16 GENERAL SERVICES : TRAIN LIGHTING 27
3. ELECTRONIC RECTIFIER CUM REGULATOR (ERRU ) (25KW AND 4.5 KW) 3.0 Main features of ERRU with UVC: • Fast and reliable switching devices. • Alternator identifying facilities and • Auto setting of parameters such as output DC voltage, battery current, load current which in turn increase the life of battery and the alternator itself. • Monitoring real time value of alternator voltage, load current, battery AH (IN), AH(OUT) etc., through interface fitted inside the coach. 3.1 Main advantages of ERRU: • Control circuit is Modular type design. • Auto identification of alternator ratings and indications. • Auto setting of parameter of voltage, load current, Battery current, over voltage, over current and current limiting for all the regulator of 4.5 kW, 18 kW and 25 kW. • UVC is interchangeable with all types of Electronic Regulators from 4.5 kW to 25 kW. • Close regulation of voltage +/- 2 V over the entire range of load and speed to have uniform charging of batteries. • Less voltage and current ripple on Battery Charging current. • Controlled Battery charging current to have longer life of batteries. GENERAL SERVICES : TRAIN LIGHTING 28
Page 2 and 3: PREFACE The book of “General Serv
Page 4 and 5: 1. SYSTEMS OF TRAIN LIGHTING 1.0 Tr
Page 6 and 7: Fig. 1.1 MID-ON-GENERATION In this
Page 8 and 9: 1.3 END-ON-GENERATION Rakes of Rajd
Page 10 and 11: Fig. 4 GAUGE FOR ALIGNMENT OF DYNAM
Page 12 and 13: HMTD Engineering CGL (Crompton Grea
Page 14 and 15: Fig. 7 Flux Density Distribution Cu
Page 16 and 17: GENERAL SERVICES : TRAIN LIGHTING 1
Page 18 and 19: amplifier. This enables magnetic am
Page 20 and 21: The schematic diagram of electrical
Page 22 and 23: FIG 12 Principle of operation The b
Page 24 and 25: Alternator data Output voltage Curr
Page 26 and 27: e sufficient to cause conduction of
Page 28 and 29: FIG. 14 GENERAL SERVICES : TRAIN LI
Page 32 and 33: • Moulded Hall sensors for curren
Page 34 and 35: Setting : Normal : 124V +/- 0.5 V a
Page 36 and 37: (iv) STATIC OVER VOLTAGE PROTECTION
Page 38 and 39: Note: • Emergency field extension
Page 40 and 41: DO’S : DON’TS : 1. Connect all
Page 42 and 43: 3.6 TROUBLE SHOOTING INSTRUCTIONS F
Page 44 and 45: 4. Battery current limit. 5. OVP is
Page 46 and 47: 4. BATTERIES 4.0 Conventional Lead
Page 48 and 49: The nominal voltage of a lead acid
Page 50 and 51: 4.4.9 The rating assigned to the ce
Page 52 and 53: purpose. Check up correct polarity
Page 54 and 55: 15. Record individual voltage of ce
Page 56 and 57: TABLE - II RELEVANT DATA FOR INITIA
Page 58 and 59: ody and result in leakages in servi
Page 60 and 61: Sulphate resulting in the negative
Page 62 and 63: Construction of VRLA Cell 1. Termin
Page 64 and 65: 5.7 MAINTENANCE The aim in maintena
Page 66 and 67: 5.12 The commutator surface should
Page 68 and 69: send defective fan to shop for atte
Page 70 and 71: magnets by sinking them further ins
Page 72 and 73: a. Ceiling light fittings in I, II&
Page 74 and 75: c) Replace switch covers and Rise c
Page 76 and 77: 7. MAINTENANCE SCHEDULES 7.1 SCHEDU
Page 78 and 79: In case the gap between two halves
Page 80 and 81:
Do not change generator pulleys as
Page 82 and 83:
8. Check for loose connection in ba
Page 84 and 85:
K) REFRIGERATORS: 1. Check up DC co
Page 86 and 87:
9. Unit Exchange Spares (UES) shoul
Page 88 and 89:
GENERAL SERVICES : TRAIN LIGHTING 8
Page 90 and 91:
To reduce with number of power cars
Page 92 and 93:
iv) Over speed The high water tempe
Page 94 and 95:
9.0 INTRODUCTION 9. MID - ON - GENE
Page 96 and 97:
9.3 LOAD CALCULATION FOR MOG RAKE :
Page 98 and 99:
FORMATION KW AMPS SLR 1.6 7.6 7.6 7
Page 100 and 101:
10. FIRE HAZARDS 10.1: Excessive cu
Page 102 and 103:
(ii) Insulation resistance under fa
Page 104 and 105:
Sr. No. 1 Circuit Positive/ Negativ
Page 106 and 107:
following fire retardant paints are
Page 108 and 109:
8, Fan and Regulator +ve -ve 9. Lam
Page 110 and 111:
(SHEET-1) TROUBLE SHOOTING INSTRUCT
Page 112 and 113:
(SHEET III) ANNEXURE III If fault i
Page 114:
GENERAL SERVICES : TRAIN LIGHTING 1
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