Arc Flash Mitigation System ?

[Davebones]

Saw e-mail from Littlefuse about the PGR-8800 Arc Flash relays . Is this works as shown why do we not hear about these being installed on switchgear's ? Pro's and con's of these system's ?

 

[petersonra]

Saw e-mail from Littlefuse about the PGR-8800 Arc Flash relays . Is this works as shown why do we not hear about these being installed on switchgear's ? Pro's and con's of these system's ?

Because it adds cost and most people these days are more interested in not spending any more than they have to.

It is not just the extra hardware but rewriting instructions and retraining people. that probably costs 10X what the hardware does.