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MM-42828_website_ground-resistance-signaling-module_kombi_2000x2000.jpg

Övervakningsmodul för jordfel

Med den nya signalmodulen för jordmotstånd i det jordade driftläget erbjuder WAGO inte bara detektering av 0 V-jord, utan även helautomatisk detektering av motståndsvärden under ett icke-justerbart, obalanserat isolationsmotstånd mellan jord och +24 V eller 0 V av matningsspänningen.

Övervakningsmodul för jordfel

I videon, visar Frank Sellke, WAGO Business Development Manager för INTERFACE ELECTRONICS, mer om funktionerna och fördelarna med jordfelsindikatorn.
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Funktioner

Utvecklingen av signalmodulen för jordfel

Entrådig

  • Säkring löser ut omedelbart vid jordfel
  • Omedelbar systemavstängning
  • Förvarning

Frånskiljbar jordplint – Manuellt test av isolationsmotstånd

  • Säkring löser ut omedelbart vid jordfel
  • Omedelbar systemavstängning
  • Detektering av potentiella jordfel genom rutinmässigt manuellt underhåll
MM-42828_website_ground-resistance-signaling-module_isolationswiderstand_2000x1125_.jpg

Jordfelsindikator – Automatisk testning av isolationsmotstånd

Jordfelsindikatorn erbjuder branschens bästa kostnads-nyttoförhållande och är lätt att använda. Byte av jordfelsindikatorns anslutning är enkelt Endast två extra kablar behöver anslutas till PLCn för att göra den potentialfria kontakten redo för utvärdering.

MM-42828_website_ground-resistance-signaling-module_box_2000x1125_.jpg

Fördelar med jordfelsindikatorn jämfört med mekanisk jordledaranslutning – i praktiken

  • Manuell testning för uppkommande jordfel ersatt av helautomatisk övervakning
  • Minskning av inspektionsintervallet från ca. 3 månader till 10 sekunder
  • Omedelbar signalering genom potentialfri kontakt till PLCn

Applikationsexempel

Utgångspunkt och resultat

Uppgradering från plintens jordanslutning till jordfelsindikator

Överallt där en jordledaravskiljningsterminal används, kan en signalmodul för jordfel enkelt eftermonteras för helautomatisk övervakning.

Två 24 VDC nätaggregats krav endast en Jordfelsindikator

Även med två eller flera strömförsörjningsenheter parallellkopplade, en signalmodul för jordfel räcker för jordfelsövervakning.

Mer information