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The System Average Interruption Frequency Index (SAIFI)[1] is commonly used as a reliability indicator by electric power utilities. SAIFI is the average number of interruptions that a customer would experience, and is calculated as

\mbox{SAIFI} = \frac{\sum{\lambda_i N_i}}{N_T}

where \lambda_i is the failure rate, N_i is the number of customers for location i and N_T is the total number of customers served. In other words,

\mbox{SAIFI} = \frac{\mbox{total number of customer interruptions}}{\mbox{total number of customers served}}

SAIFI is measured in units of interruptions per customer. It is usually measured over the course of a year, and according to IEEE Standard 1366-1998 the median value for North American utilities is approximately 1.10 interruptions per customer.

References[edit]

  1. ^ Yeddanapudi, Sree. "Distribution System Reliability Evaluation". Iowa State University. Retrieved 18 June 2011. 

See also[edit]


Original courtesy of Wikipedia: http://en.wikipedia.org/wiki/SAIFI — Please support Wikipedia.
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Zawya (registration)
Wed, 05 Nov 2014 20:31:59 -0800

One good example is Al-Massaleh Real Estate, a leading Kuwait-based development company, which launched state-of-the-art residential development Saifi Crown Wednesday. The project consists of a 23-story building that integrates Roman ruins, which ...
 
New Straits Times Online
Fri, 31 Oct 2014 09:36:40 -0700

KUALA LUMPUR: Standard Chartered Saadiq Bhd's chief executive officer (CEO) Wasim Saifi is leaving the bank after three years of service to pursue personal interests. In a statement yesterday, Standard Chartered Saadiq said it was confident the bank ...

I am in dna of India

I am in dna of India
Fri, 21 Nov 2014 06:43:19 -0800

The family of eleven, seen here, which resides outside Saifi Hospital, is often asked to move from one footpath to another when a minister or bureaucrat passes by. The family of eleven, seen here, which resides outside Saifi Hospital, is often asked to ...

Indian Express

Indian Express
Fri, 21 Nov 2014 14:41:15 -0800

Another committee member Riyazuddin Saifi said, “Mayur Vihar police have been conducting antakshari programmes between both groups to further communal harmony. ” Police have also been handing out tennis rackets and footballs to encourage children ...

Iloubnan

Iloubnan
Mon, 17 Nov 2014 03:37:30 -0800

Des discussions étaient en cours lundi matin à Saifi entre des députés libanais et les proches des militaires otages, afin d'ouvrir les routes bloquées. Plusieurs députés sont arrivés dans ce quartier du centre ville de Beyrouth, où les proches des ...

Coventry Telegraph

Coventry Telegraph
Thu, 13 Nov 2014 21:46:25 -0800

A group of Coventry sixth-formers sprang into action to rescue a toddler found wandering the streets alone. Barrs Hill School students Asha Allo, Urji Mustefa and Djemila Saifi were on their lunch break when they saw the distressed youngster in St ...

Times of India

Times of India
Mon, 04 Aug 2014 21:02:31 -0700

Nadeem Saifi, who had split up with partner Shravan Rathod in 2005, has signed his first film as a solo composer, 'Ishq Forever'. This will be the directorial debut of Vidya Malvade's husband, Sanjay Dayma. ALSO READ: Nadeem-Shravan back in action

The Jewish Press

The Jewish Press
Tue, 18 Nov 2014 19:43:41 -0800

Just one week later, on November 14 – less than a week ago – PA Ministry for Religious Affairs representative Hassan Al-Saifi reiterated the call, according to an article published in the Al-Hayat Al-Jadida. As did the Fatah official before him, the ...
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