Posts tagged as SPD

EngineerIT Inbox July 2014

  Readers engage in a spirited debate on the pros and cons of surge arrestors. Winning letter to the editor No protection from used-up arresters Dear Editor In the news item entitled “No protection from used-up arresters” on page 35 of the June 2014 issue of EngineerIT magazine, Jonathan Palmer of Powerman makes the statement […]

Surge protection for mining industry

Surge protection devices (SPDs) should ideally operate instantaneously to divert a surge current to ground with no residual common-mode voltage presented at the equipment terminals. Once the surge current has subsided, the SPD should automatically restore normal operation and reset to a state ready to receive the next surge. The Dehnpipe is an SPD/transient voltage […]