The Protection  relays of  the VAMP  Series are used  for the selective  protection of overhead line feeders

    , cable feeders ,   motor  feeders, capacitor  bank , reactors and busbars  for  Medium voltage Equipments.

   Arc Protection Type

     Whether the time-grading or blocking based  protection coordination principle is used , the traditional

     protection system may not provide fast enough protection of substation faults .

     Further high-impedance type of earth-fault may cause prolonged operation times of earth-fault relays

     leading to the significant release of the arcing energy . These facts pose a considerable risk to human

     beings and economical assets . By applying a modern , high-speed arc protection system the damage

     may be considerably reduced .   Such  an arc  protection system in an optional feature incorporatable

     in all current measuring VAMP relays .

     The VAMPrelays measure the fault current.If the arc protection interface option is selected the relays

     also measure light via arc sensor channels monitoring the whole switchgear.  Should an  arcing fault

     occur in the switchgear the arc protection system provides  an  extremely fast  tripping of  the circuit

     breaker.