Diesel Gen-set Operation Instructions
6
2.
Rated capacity:
for the Gen-set whose power factor is 0.8 (lagging), its rated
capacity shall be 1.25 times of rated power.
3.
Reserve capacity:
reserve capacity of Weichai Gen-set is 1.1 times of rated
capacity.
III. Environment adaptability of the Gen-set
Under following environmental conditions, the Gen-set shall be able to operate
normally and output rated power.
Ambient temperature: 25
℃
Range of altitude: 0~1000m
Relative air humidity: 30%~60%
Under non-standard environmental conditions, the Gen-set shall be able to operate
normally. But, rated power of the Gen-set must be corrected.
IV. Power correction of the Gen-set
When the Gen-set is going to operate under non-standard environmental conditions,
rated power of the Gen-set shall be corrected. If the load power of the Gen-set during
operation is greater than corrected rated power, the diesel engine will belch a lots of
black smoke and become overheating. If operation like this is kept for a long period
of time, diesel engine will malfunction seriously or be damaged, so this situation must
be avoided.
When ambient temperature is extremely high, air density would decrease, amount of
oxygen provided during combustion of diesel engine will decrease. As combustion
efficiency reduces and mechanical output power of diesel engine will reduce
accordingly; at the same time, winding needs to be cooled by air during operation of
alternator, thus cooling performance will decrease and internal temperature of
alternator winding will raise when ambient temperature is extremely high. Therefore,
in order to ensure that temperature of alternator winding is kept within an allowable
