Doing away with power cars / generator vans?

First ACCI Lobby in Indian Railways

Before

After 

Indian Railways first ACCI lobby was made functional at CSTM in Central Railway in 2014. Earlier we had lobbies only for Crew, poor ACCIs were left out.

Inside Engine Room of Power Car

Alternator manual with how many cells?

alternator spec:  http://www.rdso.indianrailways.gov.in/works/uploads/File/SPEC_AC_0013(Rev%202).pdf

We are in habit of using 6 cells ( 12 V) for doing field supply manual of 25 KW alternator in AC coaches in case of RRU/ERRU failure.

Henceforth this activity should be done using tap from across 8 Cells ( thus giving 16 Volts approx). This is needed since most of the time batteries are already drained and we don’t get even 12 V from  6 Cells.

Table below relates train speed with RPM:-

Speed for Alternator output	RPM	KMPH
Cut in speed (below which no gen)	400	22
	500	30
Minimum speed for full output	930	51
	1500	82
	2500	136
	2800	156

LHB RMPU Pictures

Condensor fans on top.

Inside RMPU