Selection principles and standards for standby diesel generator sets

<Electrical Design Code for Civil Buildings> JGJ/T16-92 3.1 stipulates: Primary load should be powered by two power sources, When a power source fails, The other power supply should not be damaged at the same time, When the secondary load conditions permit, It is also advisable to use two-way power supply for power supply, especially the secondary load for fire protection, It should be powered according to the requirements of the two circuits: Specially important loads in primary loads, In addition to the two power supplies mentioned above, An emergency power supply must also be added

Class I high-rise buildings should be powered according to Class I load requirements; Class II high-rise buildings should be powered according to the requirements of Class II load.

According to these regulations, Wanding Genset has summarized the setting principles of self-contained diesel generator sets:

1.When the power grid can only provide one power supply, in order to meet the power supply requirements for the primary and secondary loads, a diesel generator set should generally be installed. At this time, the diesel generator set will be used as a backup power supply and an emergency power supply use.

2.When civil buildings need to supply power according to the first-level load requirements, if the urban power grid can provide two independent power sources (one for use and one for backup or mutual backup), diesel generator sets may not be installed, but when there are particularly heavy loads When the load is high, a diesel generator set should generally be used as an emergency power supply.

3.In order to ensure that large economic losses will not be caused when the mains power is interrupted, diesel generator sets should also be installed in large and medium-sized commercial buildings. Since the urban power grid cannot be completely independent, sometimes when one power supply fails or is overhauled, the other power supply may fail at the same time. Therefore, even if there are two or more power supplies, in order to ensure that fire protection and other important equipment (such as intelligent equipment) in civil buildings , communication equipment, etc.) for reliable power supply, generally equipped with diesel generator sets.