7 SCHEDULED MAINTENANCE
Mitsubishi Diesel Engine S12R OPERATION & MAINTENANCE MANUAL
120
Pub. No. 291Y1-40720 Revision: 5
*1: This condition constitutes a part of required conditions for warranty that MHIET agrees with the other party under Diesel Engine
Sales Contract with the party (hereinafter "Individual Contract"), however details of the warranty descriptions and the conditions shall
be referred to the Individual Contract. Atmospheric condition as per ISO 15550:2002 (JIS B 8003:2005)
(Barometric pressure: 100 kPa, ambient temperature: 298K, relative humidity: 30%).
*2: Average load factor (per day or year) shall be calculated as per the formula in ISO 8528-1:2018 ’average power output (Ppp)’.
*3: Refer to the Operation & Maintenance Manual for more information regarding inspection and maintenance including items and
descriptions.
*4: Warranty coverage shall be expired after Major Overhaul.
*5: For backup or emergency purpose engine, it is needed to have output margin of 5% or more for the customer demand output to
avoid engine stall by output tolerance (ISO 15550) and frequency variation etc.
*6: The DCP rating is consistent with the requirement of Tier III and Tier IV under the Uptime Institute.
*7: Conditions are consistent with the requirements under ISO 8528-1:2018.
This document is subject to change without prior notification.
Table 7-2 MHIET Generator Use Diesel Engine Rating Definition (2/2)
Symbol DCP *6 C D
Name of rated output (ISO 8528-
1:2018 description)
Data center power (DCP) Continuous power (COP)
Overload operation (Rack set) +10% (E) N.A. (C) N.A. (D)
Definition
For generator in data cen-
ter application (where reli-
able grid is available)
Rating that can continuously generate power without
limitation for operating hour per year under the required
conditions for warranty in this document.
In addition to the for sym-
bol C above, this rating
shall be used 90% or more
average load factor or lon-
ger maintenance interval
are required.
Required conditions for warranty *1
Load/operating
hour *2
Average load
factor/24 hrs
100% load is allowed in
case of grid failure. Over-
load operation (≤ 110%) is
limited to 1 hr per 12 hrs.
100% or less 90% or less 100% or less
Average load
factor/yr
100% or less *7 100% or less *7 90% or less 100% or less *7
Operating
hrs/yr *4
Unlimited *7 Unlimited *7 Unlimited Unlimited *7
Overhaul inter-
val after delivery
<Maximum> *3
Top
500 hrs or 4 yrs whichever
comes earlier
6000 hrs or 4 yrs whichev-
er comes earlier (Recom-
mended:4000 hrs)
8000 hrs or 4 yrs whichev-
er comes earlier (Recom-
mended: 6000 hrs)
8000 hrs or 4 yrs whichev-
er comes earlier (Recom-
mended: 6000 hrs)
Major
1000 hrs or 8 yrs whichev-
er comes earlier
12000 hrs or 8 yrs which-
ever comes earlier (Rec-
ommended: 8000 hrs)
16000 hrs or 8 yrs which-
ever comes earlier (Rec-
ommended: 12000 hrs)
16000 hrs or 8 yrs which-
ever comes earlier (Rec-
ommended: 12000 hrs)
Applicable example Data center Base load, Cogeneration system
To Next Page
Loading...
Need help?
General
