Specialization, Refinement, Differentiation, and Innovation (SRDI) SME Certification                                                                                                                             High-Tech Enterprise Certification

 For more than 30 years,REPSUN has focused on the research and development of lightning surge protection technology. Driven by technology and innovation, REPSUN is awarded as National High-tech Enterprise and Specialization, Refinement, Differentiation, and Innovation (SRDI) Small Medium Enterprise.

      1.DTD technology (Dual thermal disconnector technology):To integrate fuse thermal disconnector and mechanical disconnector inside surge protective devices. 

                                                                     

                                                             Patent No.:ZL201220059050.3                                                                                                                                                                                             TMOV with DTD technology

        The patented technology contributes to more safe and reliable quality of SPD.

 

       Why do we need SPD DTD technology?

 

       The importance of the SPD disconnectors is fundamental to the safe isolation of an SPD during failure conditions. The importance of to the safe operation of an SPD can not be over emphasized. It is for this reason that manufacturers put much effort into the design of disconnectors and standards (UL 1449 and IEC 61643-1), into the testing and evaluation of such devices.

 

       The failure mechanism of an SPD can generally be categorized as:

• A gradual end-of-life due to natural degradation(aging) of the internal non-linear component(s) during normal operation, or
• A rapid end-of-life due to a catastrophic event outside the scope of the SPD’s normal range of operation.

      These two scenarios, by which an SPD can reach its end-of life, generally place very different requirements on the disconnector(s). One is the disconnector which is capable of sensing the thermal rise in temperature of the SPD (such as fuse). The objective being to isolate the failing varistor before it reaches thermal runaway and becomes a fire hazard. The other is the over-current disconnector such as a fast operating mechanical disconnector, which operates extremely fast in order to limit the energy of the prospective short-circuit current available from the supply to which it is connected.

 

      The above problems are solved together thanks to DTD technology, which offers dual safe protection in the case of the failure of SPD.

      2.LTR energy control technology and non exhausting encapsulated spark gap technology.

                                                              

                                                T1+T2                                                                                                            T1+T2+T3                                                                                           KEMA Type Test Report

       Spark gaps are the core of our T1 or T1+T2 or T1+T2+T3 lightning arresters featured LRT energy control technology and non exhausted spark gap technology.

 

       With good energy co-ordination performance,the lightning arresters help prevent lightning and surge damage to sensitive electronic circuits and electrical equipment. It is well encapsulated to avoid any follow current.

 

       The LTR energy control technology and non exhausting encapsulated spark gap technology make REPSUN spark gap arresters be in the first rank in the lightning protection industry.

 

    Advantages:

• The smallest size at the same parameters to save space in the distribution panel
• Low voltage protection level，Up:1.5kV
• Visible mechanical status indicator for spark gaps, optional remote signal contact
• High surge capacity up to I_imp 50kA (10/350μs),I_max 160kA (8/20μs)
• TUV certified and KEMA type test
• High Follow Current Interrupting capacity and Short-Circuit Current Rating, I_fi:25kA(L-N), Isccr_: 25kA