SPD with MOV & GDT technology

What is an SPD with MOV and GDT Technology? An SPD with MOV & GDT technology incorporates protective functions of both MOV and GDT components into one device. The combination of MOVs’ fast response time and the high energy capacity of GDTs makes this hybrid design withstand voltage surges even better. What is the Function of MOV and GDT Technology? 1. MOV: Voltage clamping MOVs are classed as a variety of resistors whose activity depends on the voltage present. With MOV, the voltage clamp breaks when the excess voltage received is too high. The MOV ensures the resistance during discharge diminishes fully to ensure no buildup of extra voltage. MOVs, unlike GDTs, do deplete frequently with continued surges. This could lead to ineffective MOVs due to surges in cascading charge voltage. 2. GDT (Gas Discharge Tube) A GDT is recognized as a charge pulse device that possesses a gas charge within a cylinder and is termed “box” and opens under a specific degree of added voltage. Capable of sustaining energetic shock surges, surpassing the moving limiters mark, GDTs tend to have a longer afloat time than MOVs. On the other hand, they also respond way slower and are not appropriate for all applications. 3. Hybrid Integration: Combining MOVs and GDTs in hybrid SPDs allows for the extraction of benefits from both technologies. The MOV mitigates the initial surge, while the GDT mitigates the sustained high-energy events. That is why MOVs in hybrid SPDs are robustly protected and have longer life spans. Advantages of SPD with MOV & GDT Technology • Protection is Greater: They have superior protection against a wide variety of transient voltage surges. • Life Span is Extended: Reduces wear on MOVs due to GDTs being able to handle high-energy surges. • Size: Combining both technologies into a ...