Table 14.04.01: Electric motor for auxiliary blower, engine with turbocharger located on aft end or exhaust side
The installed power of the electric motors are based on a voltage supply of 3x440V at 60Hz.
The electric motors are delivered with and fitted onto the engine.
Electric Motor for Auxiliary Blower
Number of
cylinders
Number of auxiliary
blowers
Required power/blower
kW
Installed power/blower
kW
5
2
33 35
6 39 43
7 46 53
8 52 54
9 59 65
The number of auxiliary blowers in a propulsion
plant may vary depending on the actual amount of
turbochargers as well as space requirements.
Motor start method and size
Direct Online Start (DOL) is required for all auxil-
iary blower electric motors to ensure proper op-
eration under all conditions.
For typical engine configurations, the installed
size of the electric motors for auxiliary blowers are
listed in Table 14.04.01.
Special operating conditions
For engines with Dynamic Positioning (DP) mode
in manoeuvring system, option: 4 06 111, larger
electric motors are required. This is in order to
avoid start and stop of the blowers inside the load
range specified for dynamic positioning. The actu-
al load range is to be decided between the owner
and the yard.
Engine plants with waste heat recovery exhaust
gas bypass and engines with low- and part-load
exhaust gas bypass may require less blower ca-
pacity, please contact MAN Diesel & Turbo, Co-
penhagen.
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