Genset locomotive

A genset locomotive is a locomotive in which a number of smaller diesel engines are used rather than a single large engine. The term is short for "generator set."[1]

General

A locomotive builder may make a range of locomotives of different power, with the lowest power shunter with, say, one genset engine, and the highest power main line freight locomotive with several genset engines.

The excess engines are turned off when the extra power is not needed.

The different genset engines do not have to be the same size.

Advantages

save fuel, wear & tear, noise, pollution, etc., when excess engines can be turned off.
should one genset engine fail, the others can keep the train going, albeit at reduced speed.
to remove a genset engine, a smaller size crane is needed. A larger crane is required to remove a traditional diesel locomotive engine.

Disadvantages

more complex design, but this could cease to be a problem once the design is debugged.

Greater capital cost, could be offset by lesser operating cost.

Greater deadweight, however traditional locomotives often carry added ballast to maximise tractive effort.

Table

N	Year	Country	Manufacturer	Model	HP	Engines	Wheels	Gauge	Link	Remark	K
003+	2013	India	Banaras Locomotive Works	WDM-2G	2400 3x800		B-B	1676mm	LK	RK	K
005	2006	United States	National Railway Equipment	NRE 3GS21B	2100 3x700	Cummins	WH	1435mm	LK	RK	K
010	2014	South Africa	Grindrod Locomotives	ML	0710	ES	WH	1067mm 1000 mm	LK	RK	K
020	2010	United States	Railserve Leaf	ML	1200 2x600	Cummins QSX15-L3	B-B	1435 mm	LK	RK	K
030	201?	United States	MotivePower	MPI MP14B	1400 2x700	Cummins QSK19C	B-B	1435 mm	LK	RK	K
040	2007	United States	Railpower Technologies	Railpower RP14BD	1530 2x765	Deutz BD2015	WH	1435 mm	LK	RK	K
042	2004	United States	Railpower Technologies	Railpower GG20B Greengoat	0300 2000	Caterpillar C9	B-B	1435 mm	LK	Only G-S With Large Battery	K
050	201?	United States	Progress Rail	Progress Rail PR43C	4300 2x??? 1x3600 1x700	. Caterpillar C175 C18	C-C	1435 mm	LK	RK	K
100	20??	United States	Brookville	Brookville BL20CG	2100 3x700	Cummins	B-B	1435 mm	LK	RK	K
200	20??	United States	National Railway Equipment	NRE 2GS16B-AU	1400 2x700	Cummins	B-B	1435 mm	LK	RK	K
300	2013	Germany	Bombardier Transportation	Traxx DE Multi-Engine	2880 4x720	ES	WH	1435 mm	LK	RK	K

References

"What is a Genset locomotive?". Railserve Leaf. Retrieved January 3, 2019.

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[1] "What is a Genset locomotive?". Railserve Leaf. Retrieved January 3, 2019.