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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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1378 news items

Hindu Business Line

Hindu Business Line
Fri, 04 Apr 2014 04:03:45 -0700

Shakeel Saifi's convoy was scheduled to arrive at Chand Cinema in Trilokpuri at 10am on its way to file his nomination as the Lok Sabha candidate for the Bahujan Samaj Party (BSP) from East Delhi. A couple of people are playing cards on the footpath ...
 
Northern Voices Online
Thu, 03 Apr 2014 09:06:45 -0700

Shakil Saifi was himself very close to Congress Party and when he saw that he is not getting importance in the party he changed his loyalty this year and is contesting election on BSP ticket. As far as Jamia Nagar is concerned, Majid Deobandi said that ...
 
Calcutta Telegraph
Wed, 16 Apr 2014 14:45:00 -0700

Therefore, chief minister Akhilesh scores a high rating from Hasim Saifi, a 39-year-old electrician in Gajraula (Amroha Lok Sabha seat). But Teerath Prakash, a former Bahujan Samaj Party (BSP) activist also from Gajraula, claimed: “For every 'kriya ...

CNN

CNN
Tue, 15 Apr 2014 02:22:30 -0700

Two brothers re-arrested in Pakistan for cannibalism. By Sophia Saifi and Paul Armstrong, CNN. updated 7:35 AM EDT, Tue April 15, 2014. Mohammad Arif Ali (right) sits next to an officer at a police station in Punjab's Bhakkar district on April 14, 2014 ...
 
gulfnews.com
Tue, 08 Apr 2014 06:41:15 -0700

The death of Emad Al Saifi in late March in an accident allegedly caused by the defendant, who was reported to have been driving drunk, caused a firestorm on social media with Omanis calling for the defendant to be held accountable despite his status.
 
Times of India
Tue, 15 Apr 2014 12:52:30 -0700

The deceased were identified as Prithviraj Kiran Shinde, Nitin Ravi Yogichandra and Shoaib Saifi, all aged 18 and from Aundh. Another youngster, Apoorva Bhagat, who was driving the SUV, sustained serious injuries and was taken to the Rajarambapu Patil ...

World Tribune

World Tribune
Mon, 14 Apr 2014 10:03:45 -0700

The jihadist sources specified that “Kami al-Saifi and Ismail al-Salabi, who are both in Al Qaida, were in contact with the Muslim Brothers' (Ikhwan) Deputy Supreme Guide Khairat al-Shater and have a special role to play in creating instability prior ...
 
ABP News
Mon, 14 Apr 2014 19:37:30 -0700

Hasim Saifi, 39, who owns an electrical appliances' outlet in Gajraula, 50km west of Moradabad, said: “The Samajwadi has done everything for us, Rs 30,000 for high school pass Muslim girls, laptops, electricity for 18 or 19 hours.” Azam Khan's “bayaan ...
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