|
2023 Pakistan Blackout
The 2023 Pakistan blackout was a power outage that occurred across the entirety of Pakistan on 23 January 2023. This was the second major grid breakdown in Pakistan in 2 years, and the second largest blackout in history. In the majority of the regions, the blackout lasted about 12–13 hours while in some areas such as rural communities, it lasted even longer, ranging from 24 to 72 hour long outages. Power was restored to the capital city, Islamabad, and its neighboring city, Rawalpindi, in about 8 hours. Lahore and Karachi received power after approximately 16 hours. Cause The Energy Ministry issued a statement on Twitter that the system frequency of the national grid went down at 7:34 AM (02:34 GMT) on Monday morning. Officials stated that the outage began in southern Sindh Province after an unusual fluctuation in the voltage. The fluctuation led to a cascading failure at power plants across the country, until Pakistan was united in darkness. According to NEPRA's official r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pakistan
Pakistan, officially the Islamic Republic of Pakistan, is a country in South Asia. It is the List of countries and dependencies by population, fifth-most populous country, with a population of over 241.5 million, having the Islam by country#Countries, second-largest Muslim population as of 2023. Islamabad is the nation's capital, while Karachi is List of cities in Pakistan by population, its largest city and financial centre. Pakistan is the List of countries and dependencies by area, 33rd-largest country by area. Bounded by the Arabian Sea on the south, the Gulf of Oman on the southwest, and the Sir Creek on the southeast, it shares land borders with India to the east; Afghanistan to the west; Iran to the southwest; and China to the northeast. It shares a maritime border with Oman in the Gulf of Oman, and is separated from Tajikistan in the northwest by Afghanistan's narrow Wakhan Corridor. Pakistan is the site of History of Pakistan, several ancient cultures, including the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surge Impedance Loading
The characteristic impedance or surge impedance (usually written Z0) of a uniform transmission line is the ratio of the amplitudes of voltage and current of a wave travelling in one direction along the line in the absence of reflections in the other direction. Equivalently, it can be defined as the input impedance of a transmission line when its length is infinite. Characteristic impedance is determined by the geometry and materials of the transmission line and, for a uniform line, is not dependent on its length. The SI unit of characteristic impedance is the ohm. The characteristic impedance of a lossless transmission line is purely real, with no reactive component (see below). Energy supplied by a source at one end of such a line is transmitted through the line without being dissipated in the line itself. A transmission line of finite length (lossless or lossy) that is terminated at one end with an impedance equal to the characteristic impedance appears to the source l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Karachi
Karachi is the capital city of the Administrative units of Pakistan, province of Sindh, Pakistan. It is the List of cities in Pakistan by population, largest city in Pakistan and 12th List of largest cities, largest in the world, with a population of over 20 million. It is situated at the Geography of Pakistan, southern tip of the country along the Arabian Sea coast and formerly served as the Federal Capital Territory (Karachi), country's capital from 1947 to 1959. Ranked as a Global city, beta-global city, it is Pakistan's premier industrial and financial centre, with an estimated GDP of over $200 billion (Purchasing power parity, PPP) . Karachi is a metropolitan city and is considered Pakistan's most cosmopolitan city, and among the country's most linguistically, ethnically, and religiously diverse regions, as well as one of the country's most progressive and socially liberal cities. The region has been inhabited for millennia, but the city was formally founded as the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Islamabad
Islamabad (; , ; ) is the capital city of Pakistan. It is the country's tenth-most populous city with a population of over 1.1 million and is federally administered by the Pakistani government as part of the Islamabad Capital Territory. Built as a planned city in the 1960s and established in 1967, it replaced Karachi as Pakistan's national capital. The Greek architect Constantinos Apostolou Doxiadis developed Islamabad's master plan, in which he divided it into eight zones; the city comprises administrative, diplomatic enclave, residential areas, educational and industrial sectors, commercial areas, as well as rural and green areas administered by the Islamabad Metropolitan Corporation with support from the Capital Development Authority. Islamabad is known for its parks and forests, including the Margalla Hills National Park and the Shakarparian. It is home to several landmarks, including the country's flagship Faisal Mosque, which is the world's sixth-largest mosq ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Khurram Dastgir Khan
Khurram Dastgir Khan ( Punjabi, ; born 3 August 1970) is a Pakistani politician who had been a member of the National Assembly of Pakistan from August 2018 till August 2023. Previously, he was a member of the National Assembly of Pakistan from 2008 to 2013, and again from 2013 to 2018. He served as Chairman of Standing Committee of the National Assembly on Commerce from 2008-13. He served as Federal Minister for Commerce from 2014-17 in the Cabinet of Nawaz Sharif. He served as Federal Minister for Defence from 2017–18 and Federal Minister for Foreign Affairs from 11 May 2018 – 31 May 2018 in the cabinet of Shahid Khaqan Abbasi. He also served as Federal Minister for Energy in the cabinet of Shehbaz Sharif from 2022-23. Khan studied engineering from the California Institute of Technology and economics at Bowdoin College. Beyond his political career, he has also been involved in the family business, has served as the Vice President of Punjab Squash Association for 1998–20 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tarbela Dam
Tarbela Dam (, ) is an embankment dam, earth-filled dam along the Indus River in Pakistan, Pakistan's Khyber Pakhtunkhwa province. It is mainly located in Haripur Tehsil. It is about from the city of Topi, Pakistan, Swabi KPK, northwest of Islamabad, and east of Peshawar. It is the List of largest dams, largest earth-filled dam in the world. The dam is high above the riverbed and its reservoir, Tarbela Lake, has a surface area of approximately . The Tarbela Dam is located on the Indus River near the village of Tarbela in Bara, approximately 30 kilometers from the town of Attock. Positioned where the Indus River emerges from the foothills of the Himalayas and enters the Potwar Plateau, the dam features a reservoir for water storage. The average annual flow available is 101 billion cubic meters (3221 m3/sec). It stands 143 meters tall and covers an area of 243 square kilometers. It has a storage capacity of 11.9 billion cubic meters of water and has nine gates to control the out ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black Start
A black start is the process of restoring an electric power station, a part of an electric grid or an industrial plant, to operation without relying on the external transmission network, electric power transmission network to recover from a total or partial shutdown.Knight, U.G. ''Power Systems in Emergencies - From Contingency Planning to Crisis Management '' John Wiley & Sons 2001 section 7.5 The 'Black Start' Situation Power to restart a generating station or plant may come from an on-site black start standby generator. Alternatively, where a large amount of power is required, a tie-line to another generating plant or to an emergency generator may be used to start the facility. Once the main generating units are running, the electrical transmission network can be re-connected and electrical loads restored. Black-start power may be ensured by an agreement where a particular energy supplier is paid to make black start power available when required. Not all generating plants a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
K-Electric Bin Qasim Power Station
K-Electric Bin Qasim Power Station (BQPS) is a thermal power plant fueled by natural gas and fuel oil located near Port Bin Qasim, Karachi Karachi is the capital city of the Administrative units of Pakistan, province of Sindh, Pakistan. It is the List of cities in Pakistan by population, largest city in Pakistan and 12th List of largest cities, largest in the world, with a popul ..., Sindh. It consists of two units, BQPS-1 and BQPS-2. References Natural gas-fired power stations in Pakistan Oil-fired power stations in Pakistan {{Pakistan-powerstation-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pakistan Port Qasim Power Project
The 1,320 megawatt Port Qasim Power Project comprises two 660 megawatt supercritical coal power plants, one of which was inaugurated in December 2016 as part of the China–Pakistan Economic Corridor. The $2.09 billion project is located on 330.7 acres at Port Qasim, 37 kilometers east of Karachi in Sindh Province. The project is part of a group of 14 energy projects which fall under the fast-tracked "Early Harvest" program of the $46 billion China Pakistan Economic Corridor project. The plants were built on a "Build-Own-Operate" basis, and were constructed and will be operated by thPort Qasim Energy Holding a firm jointly financed by Qatar's Al-Mirqab Capital and China's Power Construction Corporation, a subsidiary of Sinohydro Resources Limited. Project Details The project consists not only of the power plants themselves, but also will include the construction of a jetty for exclusive use of the power plant for coal importation. The estimated annual coal consumption for the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Karachi Electric
K-Electric Limited (KE), formerly known as Karachi Electric Supply Company Limited or Karachi Electric Supply Corporation Limited, is a Pakistani utility company based in Karachi. Privatised in 2005, KE is the only vertically integrated utility in Pakistan supplying electricity within a 6500 km square territory including Karachi and its adjoining areas. The shares of the company are listed in the PSX out of which, majority shares (66.4%) are owned by KES Power, a consortium of investors including Al-Jomaih Power Limited of Saudi Arabia, National Industries Group of Kuwait, and the Infrastructure and Growth Capital Fund (IGCF). The Government of Pakistan is also one of the major shareholders with 24.36% holding in the company. KE serves power to 3.7 million customers across Karachi, Dhabeji, and Gharo in Sindh, as well as Uthal, Vinder, and Bela in Balochistan. History In 1913, the Karachi Electric Supply Company (KESC) was formed to meet the power needs of a small port town ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Utility Frequency
The utility frequency, (power) line frequency (American English) or mains frequency (British English) is the nominal frequency of the oscillations of alternating current (AC) in a wide area synchronous grid transmitted from a power station to the end-user. In large parts of the world this is 50 Hz, although in the Americas and parts of Asia it is typically 60 Hz. Current usage by country or region is given in the list of mains electricity by country. During the development of commercial electric power systems in the late-19th and early-20th centuries, many different frequencies (and voltages) had been used. Large investment in equipment at one frequency made standardization a slow process. However, as of the turn of the 21st century, places that now use the 50 Hz frequency tend to use 220–240 V, and those that now use 60 Hz tend to use 100–127 V. Both frequencies coexist today (Japan uses both) with no great technical reason to prefer one ove ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
