Utilization of Electricity in Railway Passenger Coaches
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Transcript of Utilization of Electricity in Railway Passenger Coaches
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Utilization of Electricity in Railway Passenger Coaches
By N.Divya
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Contents• Introduction• Features• Generation• Self generated coaches• Regulator cum rectifier unit• EERU• Distribution• Utilization• Conclusion
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Introduction
Electricity is required in coaches for operating lights and fans as part minimum amenities for the passengers.
For AC coaches further amount of electricity is required.
Thus self generation is suitable.
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Features
Generation Distribution Load(in terms of passenger
comfort)
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Generation
Self generation EOG MOG
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Self generation
Alternators RRU ERRU Battery chargers
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RRU
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COMPONENTS OF RRU• Power rectifier• Voltage regulator• Voltage detector• Current detector• Magnetic amplifier• Over voltage protection scheme• Field rectifier unit• Free wheeling diode• Rectifier bridge• Blocking diodes
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EERU
Power unit Universal voltage controller Ovp High reliable components
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Basic coach wiring daigram
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Equipments pertaining to generation AC equipment is housed on the top of gang-way No. of alternators (18/25kw) : 2
no/1 coach No. of RMPU units : 2 no/
1coach No. of compressors : 2
no/1 coach No. of condensers : 2
no/1 coach No. of blowers : 2 no/
1coach No. of RRU/ERRU : 1
no/1 coach No. of battery chargers : 1 no/1 coach ( set consists of 56 cells) No. of inverters : 2 no/1 coach
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utilisation NON-AC COACHES No. of fans : 18 /1 COACH
(18KW, 110v DC, 12V, 120AH) No. of berth indicating lights : 8/ 1 COACH No. of emergency lights : 4/ 1 COACH (110v DC, 12V, 120AH) No. of cell phone/laptop charging points: 2/ 1 COACH AC COACHES No. of fans : 12/ 1 COACH No. of emergency lights : 4/ 1 COACH No. of night lights : 8/1
COACH No. of cell phone/laptop charging : 8/1 COACH for
AC 2-TIER Points : 16/ 1 COACH for AC 3-TIER
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Conclusion
The study of alternators, RRU & ERRU Units and distribution of power for train lighting and air conditioning is done.
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QUERIES