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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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Times of India

Times of India
Fri, 09 Jan 2015 00:32:37 -0800

The wedding reception of Saifi Yunus and Arfa Shaikh was a lavish affair that was attended by politicos, bureaucrats and prominent people of the city. The couple's friends also took part in the post-wedding celebrations, and came from different parts ...
 
Santa Barbara Independent
Tue, 27 Jan 2015 06:04:11 -0800

Osaama Saifi an award-winning member of the Muslim Writers Guild of America and a Santa Maria native. He received his bachelors of arts in Economics and Rhetoric, with honors, at the University of California, Berkeley. Saifi is currently pursuing a JD ...

Pakistan Today

Pakistan Today
Tue, 27 Jan 2015 10:45:00 -0800

Ghazi Salahuddin of the Muttahida Qaumi Movement, Najmi Alam and MPA Syed Nasir Hussain Shah of the Pakistan Peoples Party, Mehfooz Yar Khan of the Awami Muslim League, Maulana Akram Saifi of the Jamat-e-Ahle Hadith, Abdul Karim Abid of the ...

Washington Times

Washington Times
Sun, 25 Jan 2015 17:07:30 -0800

A 2004 book on Islam in France quotes Tokia Saifi, who was secretary of state for durable development, as saying the “fundamental mistake made by the officials” was handing “the keys of the neighborhood to Islamists” in exchange for peace, such as an ...
 
Times of India
Mon, 19 Jan 2015 14:17:57 -0800

"Arshad, his employee Ravi, Shahid and Fahid had gone to settle scores with his brother-in-law Saifi, who stays in Hiraman Ka Purwa area. Heated arguments ensued between them and Saifi. Saifi whipped out a firearm and shot at Ravi from close range," ...
 
WAFA - Palestine News Agency
Sun, 25 Jan 2015 03:15:00 -0800

He was identified as Mohammad Saifi. Army also handed Yousif Thwib, 42, an order to appear before the Israeli intelligence for interrogation at the nearby Gush Etzion military compound. Meanwhile, army stormed the towns of Dora and Beit Ummar in ...
 
CNN International
Tue, 20 Jan 2015 08:13:55 -0800

Flags torched. In Senegal and Mauritania, protesters torched French flags, the French news agency France24 reported. There were similar scenes in Iran, where protesters burned U.S. and Israeli flags. CNN's Sophia Saifi contributed to this report.

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
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