Iec 61936 1 Free Download
Thora Buckner
This part of IEC 61936 provides common rules for the design and the erection of electrical power installations in systems with nominal voltages above 1 kV a.c. and nominal frequency up to and including 60 Hz, so as to provide safety and proper functioning for the use intended.
c) One (or more) power station(s) located on a single site The installation includes generators and transformers with all associated switchgear and all electrical auxiliary systems. Connections between generating stations located on different sites are excluded.
Cette norme a t labore conformment aux exigences du Conseil canadien des normes concernant les Normes nationales du Canada. Cette norme a t publie en tant que Norme nationale du Canada par Groupe CSA.
La prsente partie de la CEI 61936 fournit des rgles communes relatives la conception et la mise en oeuvre des installations lectriques dans des systmes dont les tensions nominales sont suprieures 1 kV en courant alternatif et la frquence nominale infrieure ou gale 60 Hz, afin d'assurer la scurit et le fonctionnement correct pour l'utilisation prvue.
c) Une ou plusieurs centrales lectriques places dans un site unique L'installation comprend les gnrateurs et les transformateurs avec tout l'appareillage et tous les auxiliaires lectriques associs. Les liaisons entre les centrales situes sur des sites diffrents sont exclues.
La prsente norme ne s'applique pas la conception des appareillages prfabriqus soumis un essai de type et des sous-stations prfabriques haute tension/basse tension, pour lesquels des normes spcifiques CEI existent dj.
This part of IEC 61936 provides common rules for the design and the erection of electrical power installations in systems with nominal voltages above 1 kV a.c. and nominal frequency up to and including 60 Hz, so as to provide safety and proper functioning for the use intended.
In earlier decades the site had been fitted with five 800kVA transformers with mineral oil as the insulating liquid. Because of changes over the years, the installation no longer complied with BS EN 61936-1:2010, both in terms of fire protection and the need for containment.
There was no space within the existing structure to install fire suppression systems and due to the age of the building it was not possible to demolish walls to increase the footprint area to gain more clearance. Therefore the customer was faced with a schedule of invasive construction, prolonged outages and the expense of installing fire prevention systems.
A professional transformer retrofill requires dedicated MIDEL 7131 equipment, procedures and trained staff. The process includes allowing time to remove excess oil, heating the ester fluid to 60-80C, further cycles of purification via vacuum dehydration plant and the addition of new gaskets.
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