The three-phase elevator board has three fuses and its main task is to increase the safety of the elevator system in case of short connections. The three-phase switchboard in the elevator provides electricity to three important sections in the elevator, and if the rotary switch is turned on the switchboard, the power to all sections will be cut off except for the sockets and lighting of the elevator.
In general, the electricity of the elevator in all sections is supplied by a 5-wire cable originating from the public meter. In the installation of each elevator, this 5-strand cable should be used for the lighting of the lights, the activation of the sockets in the elevator motor room, and also the power supply of the elevator well. This cable is connected to the common meter. The common meter in every building is a three-phase meter, which all the residents of a building are obliged to pay for the electricity calculated by it. The three-phase panel in the elevator is responsible for providing the electricity consumed by different parts of the elevator. . These different sections include the following:
The three-phase switchboard has zero and earth wires and busbars, as well as three-phase zero and earth terminals. Inside this board, there are two miniature switches that have the task of lighting the elevator tunnel light. On the door of the elevator's three-phase electrical switchboard, there is a three-phase roller switch and three signal lights, and when these lights are on, it indicates the presence of electricity in all three phases in the elevator's three-phase switchboard.
Three-phase switchboard in the elevator In fact, it is a box that is installed in the elevator engine room and acts as the input part of the elevator. The main task of the three-phase electrical panel in the elevator is to control the input current before the electricity enters the elevator control panel. In the three-phase electrical panel of the elevator, three cartridge fuses of 25 to 30 amps are placed; But you should use these currents according to the type of elevator and its application. The thickness and type of three-phase elevator cable depends on the power of the elevator motor. There are other factors, such as the length of the cable route and the capacity of the elevator, which depend on the type of elevator cable.
The three-phase elevator board, in general, has the task of controlling the input current to different parts of the elevator, especially the elevator control board. In fact, this piece acts as a current controller and converter so that no non-virtual current enters the elevator control panel. If we want to express the function of the three-phase elevator panel in a more specialized way, we can say that the three-phase electrical panel is used to transmit electricity and distribute three-phase and single-phase electricity to other elevator equipment.
