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Terminal Junction Systems

SIM2N40NC4 is a terminal junction system, designed to permit interconnected electrical circuits and can be used for switching, protection and Isolation. It is primarily designed for outdoor use in high-voltage and medium-voltage substations.

Application Field

The SIM2N40NC4 system can be used in a wide variety of applications, including the electrical distribution of power in industrial and urban networks for the control and protection of main circuit breakers, switches, transformers, shunt reactors, and surge diverters. It can also be utilized in ancillary switchgear and local substations for the distribution, protection, and control of electric energy.

Working Principle

The SIM2N40NC4 system functions by providing isolation and control of circuits by breaking, making, and transferring electrical energy. The terminal junction system uses a combination of mechanical switches, air breakers, drawout physical contacts and surge arrestors to connect two circuits within the SF6 gas-insulated medium voltage ring. It allows for the secure and safe transmission, isolation, transformation, distribution, and control of electrical energy.

The terminal junction system utilizes three major components: a control system, a main switch, and a secondary switch. The control system is used to regulate and monitor the flow of electrical currents across the two circuits it connects. The main switch is used to provide a physical contact between the two circuits, while the secondary switch is used to protect and manage the flow of electric current between said circuits. Additionally, the SIM2N40NC4 utilizes a set of operating rods, interlocks, and additional components to ensure proper operation.

Once the SIM2N40NC4 terminal junction system is installed, it is necessary to set up the various components in order to guarantee the system’s functionality. First, the control system is set up and configured with the correct parameters. This control system enables the operator to monitor and regulate the flow of electricity. After the control system is set up, the main switch and the secondary switch must be correctly connected and adjusted in order to prevent any excessive electrical currents from passing through the system.

Finally, the terminal junction system must be connected to the existing electrical network. This is done by connecting the control system to the main switch and enabling the electricity to pass through the system. Once the connection is complete, all of the components and parts are tested and monitored to ensure proper operation.

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