Äâóõêàíàëüíîå ðåëå íàïðÿæåíèÿ ÐÍÏÏ-311-1 ÿâëÿåòñÿ îäíîé èç ìîäèôèêàöèé
ñòàíäàðòíîãî ðåëå ÐÍÏÏ-311. Âûïîëíÿåò âñå ôóíêöèè êîíòðîëÿ íàïðÿæåíèÿ,
çàëîæåííûå â ÐÍÏÏ-311 è äîïîëíèòåëüíî êîíòðîëèðóåò ÷àñòîòó ñåòè. Ïðåäíàçíà÷åíî
äëÿ îòêëþ÷åíèÿ íàãðóçêè 380 Â/ 50 Ãö ïðè:
- íåäîïóñòèìûõ êîëåáàíèÿõ íàïðÿæåíèÿ â ñåòè ñ ïðîäîëæèòåëüíîñòüþ íå ìåíåå 0,02
ñ, íàðóøåíèè àìïëèòóäíîé ñèììåòðèè ñåòåâîãî íàïðÿæåíèÿ (ïåðåêîñå ôàç), îáðûâå è
íàðóøåíèè ÷åðåäîâàíèÿ ôàç, ñëèïàíèÿ ôàç (êàíàë U);
- íåäîïóñòèìîì ïîâûøåíèè/ïîíèæåíèè ÷àñòîòû ñåòè (êàíàë f).
Äàííûé òîâàð áûë äîáàâëåí Saturday 01 October, 2011.