Why you choose Eprotek-- About Eprotek SPD technology
Frequently Asked Questions
What types of SPD technologies does Eprotek offer?
Eprotek offers high energy MOV technology, patented thermal protection and arc-extinguish technology, VT technology, and high energy GDT technology.
What are the advantages of Eprotek's MOV technology?
Advantages include higher lightning and surge current discharge capacity, wide voltage range for AC/DC/PV, fast response, wide working temperature, no follow current, thermal protection, stable performance, compact size, and suitability for harsh environments.
How does Eprotek's thermal protection work?
Eprotek's patented thermal protection technology provides fast response to abnormal heat of the MOV body, surge withstand coordination with the SPD surge rating, and fast disconnect to cut off the circuit in case of SPD failure.
What is the purpose of Eprotek's arc-extinguish technology?
The patented arc-extinguish device ensures permanent and secure disconnection from the power system, cutting off AC arc/short circuit to prevent fire hazard when the thermal disconnector opens.
What is VT technology and its benefits?
VT technology enhances TOV performance of SPDs, making them more robust for grid voltage fluctuations. Benefits include higher surge capacity, wide voltage range, higher TOV withstand without degradation, no leakage or follow current, no aging, thermal protection, and environmental resistance.
Why is high energy GDT used in N-PE modules?
High energy GDT is used in '3+1' protection circuits for TT systems to protect RCDs and prevent unwanted tripping. It must handle very high lightning discharge currents (e.g., Iimp ≥ 100 kA), extinguish follow currents of 100 Arms, and withstand 1200 V for 200ms per IEC standards.
