Direct current (DC) networks have become essential in various industries such as railway technology, data centers, ship power supply, and photovoltaic systems. These networks allow for the storage of DC power generated from renewable energy sources in battery storage systems, providing a reliable and efficient power supply. By using centralized rectification and integrating renewable energy sources, DC networks minimize wiring complexity and conversion losses, making them ideal for applications like electric vehicle charging infrastructure and industrial automation.
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The Advantages of DC Power Grids in Various Applications
The use of DC networks offers numerous advantages in various applications. DC networks are already widely used in railway technology, data centers, ship power supply, and photovoltaic systems. The ability to store DC power from renewable energy sources in battery storage and retrieve it as needed further increases the importance of these networks. Additionally, DC networks are finding increasing application in the charging infrastructure of electric vehicles and in industrial settings.
Advantages of centralized DC power in automated production systems
In comparison to traditional AC networks, where electricity is delivered through multiple voltage levels and converted to DC in a decentralized manner, DC networks with centralized rectification and integration of renewable energy sources offer reduced wiring complexity and conversion losses. This leads to a more efficient and cost-effective power supply. For instance, in highly automated production facilities, the need for rectification in variable-speed drives for conveyor belts or robot drives is eliminated.
Significance of Reliable Power Supply in DC Networks
The VARIMETER Series DC voltage relay UG 9831 provides a reliable solution for monitoring voltage in a wide range of DC power systems, ranging from 20 to 1000 V. With its ability to detect deviations from the desired voltage levels, this relay enables the implementation of control procedures to stabilize the voltage and, if necessary, initiate a shutdown to ensure the reliable power supply in DC networks.
The DC voltage relay of the VARIMETER series is equipped with adjustable threshold values that allow it to detect under- and overvoltages. These deviations from the desired voltage level are then reported through potential-free changeover contacts, enabling the implementation of appropriate countermeasures. The device is also protected against tampering with a sealable transparent cover, and the threshold values can be precisely set using ratchet-type rotary switches.
VARIMETER Series UG 9431: Integrated Modbus RTU Interface for Continuous Data Monitoring in DC Networks
The UG 9431 from the VARIMETER series offers an integrated Modbus RTU interface for continuous measurement data, allowing for easy parameterization, monitoring, and diagnosis of DC networks. Additionally, this device provides relay contacts for reporting or controlling signal lamps. These features enable effective control and monitoring of DC networks, ensuring a reliable power supply.
Benefits of Using DC Power Grids: Efficiency and Cost
The use of DC power grids offers significant economic and environmental advantages. By minimizing wiring complexity and conversion losses, DC power grids enable more efficient power delivery. The VARIMETER series DC voltage relay provides reliable monitoring of voltage levels in DC power grids, allowing for prompt corrective actions in case of deviations from the desired state.
The devices of the VARIMETER series provide an easy way to control and monitor direct current (DC) networks, thanks to their integrated interfaces for parameterization and monitoring. With their ability to seamlessly integrate into cutting-edge applications, the DC voltage relays of the VARIMETER series are well-suited for managing and overseeing the operation of DC networks.
