The installed capacity of the tower crane is the sum of the capacity of all electrical equipment on the tower crane, and the power supply capacity of the tower crane is the sum of all the electrical equipment operating on the tower crane at the same time. Walking the three major institutions, all the electricity consumption of the three major institutions is the total electricity consumption of the tower crane.
Because there is usually a certain distance between the power transformer and the tower crane, and the cable line of the tower crane also has a certain length, there is a certain line voltage drop, and the tower crane frequently starts and brakes during operation, and peak currents often occur. Therefore, the power supply should take into account that the sum of the internal and external voltage drops of the tower crane during peak hours is 5-10%, so the capacity of the transformer supplying the tower crane should be more than double the power consumption of the tower crane. If there are other large single equipment, The capacity of the transformer needs to be calculated separately.
