What Is Nameplate Capacity?

The rated capacity refers to the capacity that the motor or electrical appliance indicated on the nameplate can work continuously for a long time under the rated operating conditions. Usually refers to the apparent power of the transformer, the active power to the motor, and the apparent or reactive power to the phase-modulation equipment.

The rated capacity refers to the conventional value of the apparent power under the main tap. If the capacity specified on the transformer nameplate is the rated capacity, it means that the tap-changer is located on the main tap and is rated.

Rated capacity working capacity

The capacity to bear the maximum daily load of the system. The maximum working capacity is the capacity that bears the maximum load day in the year at the system design level.

Rated capacity spare capacity

In order to ensure the safe and reliable power supply of the power system, set up the installed capacity as a backup. According to its purpose, it can be divided into load reserve capacity and maintenance reserve capacity.

Rated capacity load reserve capacity

Reserve capacity set to prevent the power system from malfunctioning due to instantaneous load fluctuations.

Rated capacity maintenance spare capacity

The reserve capacity set by some units in the power system to maintain normal power supply during maintenance. Planned shutdown maintenance should be arranged when the system load is low to reduce the dedicated maintenance reserve capacity.

Required capacity

The capacity of the necessary equipment to ensure the normal power supply of the power system. It is the sum of maximum working capacity and reserve capacity.

Capacity factor

The ratio of the total power generation capacity of a marine energy generation device in a certain period to the product of the hours in that period and the installed capacity of the power plant. It is an important indicator for evaluating the utilization of power generation equipment.

Rated capacity average equipment capacity

The calculation method of the average capacity of generating units is as follows:
Average equipment capacity = Generator set capacity × Hours in which the unit constitutes the plant's power generation equipment in the reporting period / Calendar hours in the reporting period.