Surge Protective Devices(Direct Current SPD)

Sakup ning Aplikasyun

Ing SPD masanting ya para kareng eganaganang uri ning low-voltage distribution systems a maki grid voltage lalam ning 1000 volts ampo frequency a 50/60HZ, antimo reng post ampo telecommunications, railways, financial systems, oil fields, high-rise buildings, bale ampo office buildings. Para protektan la reng electrical appliances (antimo reng computer, instrumentu ampo kagamitan, kasangkapan keng bale, atbp.) da reng gagamit kuryenti ibat keng kildap, transient overvoltage ampo aliwa pang surge overvoltage damage. Siguradwan ing kagamitan ampo ing personal a kaligtasan. Iti metung yang masanting a kasangkapan para proteksyunan ing overvoltage.

Ing pun a istruktura ampo ing prinsipyu ning pamagobra

keng atlung-phase a apat a kawad a sistema, deng protektor makasuglung la pilatan da reng atlung phase a kawad ampo ing neutral a kawad keng ground wire (lawen me ing larawan king lalam). keng normal a sitwasyun, ing protektor atyu ya keng Levin state, at nung ing power grid mipailalam ya keng surge overvoltage pauli ning kildap o aliwang sangkan. Ing protektor mabilis yang mibuklat keng nanosecond a panaun, magdalang surge overvoltage keng yatu, inya sa't protektan ing electrical equipment keng power grid. Potang ing surge overvoltage dumalan ya keng protector at mawala ya, ing protector mibalik ya keng matas a resistance state. Para ali maapektuhan ing normal a operasyun ning power grid.

Tanda