High power voltage regulator

Even unique ‘islanding’ system, Rs 500-cr annual surcharge failed to protect city. What went wrong? A power grid comprises a network of transmission lines connecting a power plant to households through high-voltage lines. In between, the electricity is sent through a number of substations, where the high voltage aka transmission voltage is ‘stepped down’ to distribution voltage to allow it to be used in households without frying up appliances. In Mumbai, these substations are at Salsette, Kalwa, Borivali, Vikhroli, Kharghar and Versova. The city gets electricity from four distributors: the state-owned Maharashtra State Electricity Distribution Company Limited (MSEDCL), BEST Undertaking, and private players Tata Power and Adani Electricity . The blackout, although a surprise, wasn’t the result of an overnight, single failure. Problems began three days ago. ♦ October 10: One of the transmission grids—the 400 kV Talegaon-Kalwa line—was shut down to address a ‘technical … [Read more...] about Multiple power trips, grid separation failure to blame

A severe winter storm recently caused massive blackouts in the US state of Texas, leaving millions in freezing temperatures and darkness for days and claiming more than 30 lives. That led to some netizens in China wondering "If similar extreme weather hit China, would the same tragedy happen?" The answer is probably "no", as China's power supply system has several advantages. Texas has an almost completely isolated grid system – power from other states accounts for only 1.7 percent of its maximum capacity. As a whole, the United States doesn't have a national grid system and lacks coordination among states. In comparison, China has a national grid system, which is composed of six regional systems. Except the northwestern region, which has a 750-kilovolt backbone power network, the other five regions all have 500-kV networks, with networks in the North China and East China boasting 1000-kV ultra-high voltage power transmission lines. When Texas was hit by the blackout, … [Read more...] about Could China’s power grid withstand a Texas-sized disaster?

Chinese state sponsored actors  may have deployed malware into Indian power grids and seaports as border tensions between India-China began escalating in May last culminating in a deadly clash along the Line of Control (LAC) in mid June. The alleged cyber intrusion was discovered and revealed by U.S. cyber security and intelligence firm Recorded Future,  the New York Times , which broke the story, reported.  An October 12 grid failure in Mumbai may have been caused by the Chinese malware, as per the report. The Massachusetts based firm found that in the lead up to the clashes, they noticed an increase in malware targeting the government, defence organisations and the public sector. The Power Ministry confirmed that while attempts to breach systems were made, the power sector had not been impacted. Also read: Mumbai faces major power cut due to 'multiple tripping' of supply lines Recorded Future told The Hindu that there is still some evidence of ongoing intrusion although … [Read more...] about Chinese malware may have targeted Indian power systems and seaports: U.S. firm

SYDNEY/BENGALURU: Australia's antitrust regulator warned Google's planned US$2.1 billion acquisition of fitness tracker maker Fitbit may give it too much of people's data, potentially hurting competition in health and online advertising markets. The Australian Competition and Consumer Commission (ACCC) is the first regulator to voice concerns about the deal in a preliminary decision on Thursday. The Alphabet Inc-owned tech giant is already at loggerheads with the Australian government over planned new rules about how internet companies use personal information. "Buying Fitbit will allow Google to build an even more comprehensive set of user data, further cementing its position and raising barriers to entry to potential rivals," ACCC Chairman Rod Sims said on Thursday. "User data available to Google has made it so valuable to advertisers that it faces only limited competition." The ACCC, which does not generally have the power to block a deal outside Australia, will announce its … [Read more...] about Australian regulator says Google’s US$2.1 billion Fitbit deal could harm competition

The Hanoitimes - The Hanoi Party Committee has urged the people and authorities of Hanoi to strengthen measures to prevent the Covid-19 pandemic in the capital city. The Health Ministry confirmed four more Covid-19 cases in Hanoi on February 1, while the Covid-19 threat advisory was elevated. The latest patients are two women residing in Nam Tu Liem and Cau Giay districts of Hanoi and a couple living in Me Linh district. All of them got infected with the new coronavirus after having contact with people who were later confirmed Covid-19 infections in the northern province of Hai Duong, the biggest cluster of Covid-19 in Vietnam with 188 cases confirmed since Covid-19. The new patients have raised Hanoi's caseload of the Covid-19 resurgence to 19 and 242 nationwide. Hanoi turns on high alert on Covid-19 prevention. Photo: Kinhtedothi.vn The Hanoi Party Committee has urged the people and authorities of Hanoi to strengthen measures to prevent the Covid-19 … [Read more...] about Hanoi confirms four more Covid-19 infections, turns on high alert