EETim » AAR https://eetim.ro Echipamente de Automatizare Thu, 19 Sep 2024 17:22:09 +0000 en-US hourly 1 http://wordpress.org/?v=3.4.2 Automatic Reserve Tripping https://eetim.ro/en/products/tablouri-electrice-cat/aar-cat/produs-4/ https://eetim.ro/en/products/tablouri-electrice-cat/aar-cat/produs-4/#comments Sat, 07 Jul 2012 08:51:57 +0000 administrator http://eetim.ro/?p=261 Continue reading →]]> A system for automatic release of the Reserve (AAR) helps maintain continuity of a power supply, or to consumers in case of failure of main power supply by switching supply a secondary source of energy.

The ARA can be of three types:

  • AAR system with two power supplies: Transformer / Generator
  • AAR system with two power supplies: Transformer / Transformer (with coupling)
  • AAR system with three sources: Transformer / Generator / Transformer

The AAR system component includes the following products in the Schneider Electric:

  • Zelio programmable relay (for currents up to 100A) or UA programmable relay (for currents over 100A)
  • Range of switches: – Compact NSX (100 A – 630 A)                                                                                                       – Masterpact NT / NW (630 A – 6300 A)
  • Separator Interpact (40 A – 630 A)

Features:

  • allows switching from the main sourse to the secondary source within a programmable time
  • does not allow simultaneous closing of the devices
  • status indication by tripping caused by short circuit breakers
  • Reset is made manually or automatic

Applicability:

  • in institutions where continuity of power supply is vital
  • in continuous flow systems
  • in areas where electricity supply has problems
]]> https://eetim.ro/en/products/tablouri-electrice-cat/aar-cat/produs-4/feed/ 0