Monitorování obloukového zkratu

Ochrana před obloukovým zkratem pro rychlé zastavení obloukového zkratu na propojovacích lištách, v kovovém těle rozvaděče a přidružených kabelových boxech. Oblouk je detekován pomocí optického senzoru a vstupního signálu do ochranného zařízení, které rovněž monitoruje zatěžovací proud v systému.
Vypínací signál může být méně než 10 ms při použití pouze obloukové detekce nebo v rámci 15 ms při použití nadproudové kontroly. To je značně rychlejší než tradiční IDMT nadproudové relé a navíc poskytuje další ochranu před nástupem obloukových zkratů s relativně malými proudy.
  • 1S20 Arc Flash Monitor – 3 point sensors / 2 zones

    Čtěte více Features Compact, economic design Simple panel mounting for retrofit applications Two or three arc sensor inputs Two high speed tripping duty arc sense output contacts Push button reset Continuous arc sensor supervision Integrated self supervision Fail alarm contact Description Medium voltage switchgear is a key element in the power supply chain. Existing protection systems operate effectively under most circumstances, but they are too slow to handle arcing short circuits. Arcing…
  • 1S23 Arc Flash Module – 2 point sensors / 1 zone

    Čtěte více Features Compact, simple, rugged and economic design Simple wiring and DIN rail mounting Interface for one or two 1S30 arc fault sensors High speed arc fault tripping output to interface with protection relay status inputs Apply to initiate IEC61850 GOOSE messaging of arc fault events Continuous arc fault sensor supervision Arc fault pick up and supervision healthy indication 24, 32, 48, 110, 125, 220, 240 and 250V DC auxiliary versions…
  • 1S24 Arc Flash Monitor – 16 point or 12 point + 2 linear sensors / up to 16 zones

    Čtěte více Features Up to 16 arc fault sensors Up to 16 independent arc fault SARC logic nodes Arc fault signaling via Ethernet IEC61850 GOOSE messaging 10Base-T / 100Base-TX port Optional 100Base-FX port Trip indication LED for each arc fault sensor Continuous arc sensor supervision with sensor fail LED for each zone Non volatile memory ensures last recorded alarm states are restored on power up Description Arc fault protection is a relatively…
  • 1S25 Arc Flash Monitor – 8 point sensors / 4 zones

    Čtěte více Features Four independent arc fault tripping zones 1 or 2 arc fault sensors per zone allowing up to 8 arc fault sensors per 1S25 module Trip indication LED for each arc fault monitoring zone Non volatile memory ensures last recorded alarm states are restored on power up Nine high speed arc fault tripping duty output contacts (Set for latching or self reset) Zone segregated or common tripping output configuration Continuous…
  • 1S26 Arc Flash Monitor – 8 point sensors / 4 zones + integrated current check

    Čtěte více Features Four independent arc fault tripping zones 1 or 2 arc fault sensors per zone allowing up to 8 arc fault sensors per 1S26 module Blocking status input for each arc fault zone Trip indication LED for each arc fault zone Continuous arc sensor supervision with sensor fail LED for each zone Non volatile memory ensures last recorded alarm states are restored on power up Integrated 3 phase overcurrent check…
  • 1S30 Optical Arc Fault Point Sensor

    Čtěte více Features Compact rugged design One or two optical detectors High speed arc detection Heavy duty 6m termination cable Optional 20m & screened cables Simple flush panel mounting outside or inside switchgear compartment Integrated sensor circuit supervision Very low sensitivity to ambient light levels to avoid nuisance tripping even in direct sunlight Sealed module for harsh environments Optional metal reinforced mounting shield Description The 1S30 is an optical sensor that responds…
  • 1S40 Optical Arc Fault Linear Sensor

    Čtěte více Features Linear sensor for wide of arc protection coverage Optional sensor fibre length Optional link fibre length Loop topology allows sensor supervision Robust and durable 2mm plastic optical fibre Suits RMS 1S24 and 1S27 arc fault monitors Sensor length up to 35 meters Sensor link adds another 40 meters in length Robust and durable 2mm plastic optical fibre No special tools required for installation Supplied with 2x fibre couplers Supplied…
  • Delta 1S27 Arc Flash Monitor – 4 point + 1 linear sensor / 3 zones (pre-release)

    Čtěte více Features Less than 5ms arc detection and tripping time Four point sensor inputs Optional linear sensor input Surface or rail mount Flush panel or rack mount Made in Australia Description Utilised in either new installations or as a simple retrofit in existing installations, the 1S27 provides high speed detection and signalling of arc flash hazards for application in air insulated metalclad switchgear. Arc Fault protection schemes may be implemented on…