ABB 2006 800VAC/1000VDC Surge Arrester MVR 0.80-10kA

ABB MVR 0.80-10kA Surge Arrester

The ABB MVR 0.80-10kA Surge Arrester is engineered to provide robust protection for medium voltage systems against overvoltages resulting from atmospheric discharges and switching conditions. Utilizing advanced metal-oxide (MO) resistor technology without spark gaps, this surge arrester ensures rapid response and effective energy dissipation.

Key Features

• Voltage Ratings: Designed for systems operating at up to 800V AC and 1000V DC, offering versatile application across various electrical setups.
• Nominal Discharge Current: Capable of handling discharge currents up to 10 kA, ensuring reliable performance during high-energy surge events.
• Construction: The arrester comprises one or more non-linear metal-oxide resistors, which exhibit extremely non-linear resistance properties. At the maximum operating voltage, only a small capacitive current flows. Upon a surge event, the resistors transition to a highly conductive state almost instantaneously, limiting the voltage increase to specified residual voltage values. After the surge subsides, the arrester returns to its non-conductive state, dissipating the surge energy as heat to the surrounding air.
• Environmental Protection: Encased in a directly molded polyurethane (PUR) housing, the MVR surge arrester is safeguarded against environmental and weather-related influences, ensuring durability and longevity in various operating conditions.

Applications

The ABB MVR 0.80-10kA Surge Arrester is particularly suited for the overvoltage protection of:

• Transformers
• Cables and cable sheaths
• Capacitors
• Other low- and medium-voltage apparatuses and systems

Technical Specifications

• Maximum Continuous Operating Voltage (Uc): 800V AC / 1000V DC
• Nominal Discharge Current (In): 10 kA
• Applicable Current: Suitable for both AC and DC systems

For detailed technical data, dimensions, weights, and installation guidelines, please refer to the product documentation.

Conclusion

The ABB MVR 0.80-10kA Surge Arrester offers a reliable and efficient solution for protecting medium voltage systems from overvoltage events. Its advanced design, coupled with robust construction, ensures optimal performance and longevity, making it an ideal choice for safeguarding critical electrical infrastructure.