Each object that is connected to the electrical network needs power from switchboards. These measures are carried out in accordance with the standards of technical documentation, as well as the PUE.
The assembly of electrical panels is the final stage of installation work, which implies not only the installation of the panel itself, but also equipping it with the appropriate “filling”. Usually, there are installed systems for disconnecting the supply lines, as well as automatic control elements . The electric panel can be presented as a local control unit, which can include various power relays, circuit breakers, grounding and grounding buses , as well as various automation elements.
Electrical panels have a specific classification. So, they distinguish:
- Switchboards.
- Lighting boards.
- Input and distribution panels and devices.
- Shields for electricity metering.
- Distribution points.
- Boxes, jumpers, tires, etc.
Traditionally, the electric switchboard is equipped with everything necessary at the factory, where specialized equipment is installed. The quality and reliability of products must meet high requirements, which means that they directly depend on the accuracy and accuracy of installation.
The main switchboard (MDG) is a device that includes a set of devices for supplying the building with electricity. This device has found wide application in residential, administrative and commercial buildings and structures, as well as in industrial enterprises and transformer substations. The main switchboard is designed to distribute electricity throughout the building, as well as to protect against overloads and short circuits of internal and external lines. An electric switchboard of this type can also perform various functions related to protection during emergency power off, when it is necessary to quickly switch the power to the backup input.
ASUs are used to receive and transmit electrical energy. At the same time, power distribution between the receivers is carried out, as well as the protection of installations from short circuits and overloads. The electric switchboard of the VRU type is designed to provide infrequent operational on and off power circuits. To place it, it is necessary to equip a special room located directly in the center of loads.
Automatic reserve input (ATS) is used to restore power to the receivers by connecting a backup power source for the duration of the worker’s shutdown, as well as for subsequent re-activation of the working supply source. This device has been widely used in industrial building networks, factories and enterprises, as well as in transport and communication networks to achieve the required level of reliability of supplying consumers with electric energy.
When designing a future electrical switchboard, you need to know the exact number of connections. This serves to determine the overall dimensions of the apparatus, as well as the type and number of protection and control devices in it.