Handling Multiple Surges Over Time with OBO Type SPDs

Surge protective devices (SPDs) play a crucial role in electrical systems, particularly in protecting sensitive equipment from the damaging effects of electrical surges. Among the various SPDs available, OBO Type SPDs have been designed specifically to handle multiple surges over time, ensuring the reliable and continuous operation of electrical systems. This blog explores how OBO Type SPDs accomplish this feat.

Design and Construction of OBO Type SPDs

OBO Type SPDs are constructed with a robust and reliable design that can withstand multiple surges over extended periods. Some key features that contribute to this capability include:

High Surge Capacity: OBO Type SPDs are designed to carry switching surges up to 90kA (8/20μs) in a 3-phase TT network. This high surge capacity allows them to effectively absorb and dissipate multiple surges without experiencing damage or degradation.

Inbuilt Thermal and Dynamic Isolating Device: These SPDs feature an inbuilt thermal and dynamic isolating device that provides an additional level of protection. In case of excessive heat or fault conditions, the isolating device can automatically disconnect the SPD from the circuit, preventing further damage to the equipment.

Visual Indication and Remote Signaling: OBO Type SPDs offer visual indication for inspection, allowing operators to easily identify the status of the SPD. Additionally, facilities for remote signaling, audio signaling, and fuse monitoring provide additional flexibility and convenience for system monitoring and management.

Handling Multiple Surges

When multiple surges occur over time, OBO Type SPDs employ several mechanisms to ensure reliable operation:

Rapid Response: These SPDs have a fast response time, allowing them to quickly detect and respond to surges. This ensures that the surge is effectively dissipated before it can cause damage to the connected equipment.

Thermal Protection: The inbuilt thermal isolating device monitors the temperature of the SPD. If excessive heat is detected due to repeated surges, the isolating device will activate, disconnecting the SPD from the circuit to prevent thermal damage.

Dynamic Protection: The dynamic isolating device provides additional protection against fault conditions. In case of a surge that exceeds the SPD's surge capacity, the isolating device will disconnect the SPD, preventing further damage to the equipment.

Durability: The robust construction of OBO Type SPDs ensures that they can withstand multiple surges over extended periods without experiencing significant wear or degradation. This allows them to provide continuous protection for electrical systems.

Conclusion

OBO Type SPDs are designed to handle multiple surges over time, ensuring the reliable and continuous operation of electrical systems. Their high surge capacity, inbuilt thermal and dynamic isolating devices, visual indication, and remote signaling capabilities contribute to their ability to effectively dissipate surges and protect sensitive equipment from damage. By selecting OBO Type SPDs for your electrical system, you can ensure that your equipment is protected from the damaging effects of electrical surges.