As the hurricane swept through Michigan and Wisconsin on Sunday, the electric system in Michigan and Wisconsin once again went into a brief blackout as freezing rain formed from the temperatures, causing trees and power lines to fall.
Electricity is an important pillar of social and economic development, the power system as a connection between the power plant and end-user “bridge”, once a failure occurs, it is very easy to cause large-scale power outages, resulting in huge economic losses, sudden blackouts will not only jeopardize the public safety of society, the people's personal safety, but also in the economy or politics, causing significant losses or impacts. Sudden power failure will not only endanger the public safety of society and the personal safety of the people, but also cause significant losses or impacts on the economy or politics, and the society may even be paralyzed. There was a case, the power supply company in the absence of advance notice of power outages, three times in two days of sudden power outages, so that it produces more than ten rolls of steel tape, aluminum tape waste, resulting in losses of more than 178,000 yuan, so a power supply company to the court, claiming compensation for damages of more than 178,000 yuan, and finally ruled that the court found that the court discretionary power supply company for the loss of the loss of a major responsibility for the occurrence of the loss of the amount of 80%, the A company to bear 20% of the loss. Company A was responsible for 20% of the loss. In the end, the court ruled that a power supply company should compensate Company A for the loss of more than 60,000 yuan.
In analyzing the 138 major power outages worldwide since the 1990s for which the causes have been identified, there are four main categories in terms of the causes of the outages:
Natural Disaster Causes
Natural disaster causes, directly caused 77 cases, accounting for 56%; it is clear that the power interruption of thousands of people in the upper Great Lakes region, in addition to the relevant departments, did not make good contingency plans, a large part of the reason is due to this meteorological causes. The transmission lines suffered damage in the harsh natural environmental conditions and needed to be repaired and replaced. The use of Adjustable Gantry Cranes to lift and transport transmission line equipment to repair damaged equipment in a timely manner can, to a certain extent, reduce the occurrence of such incidents. Depending on the components that need to be lifted, different tonnages and types of cranes can be selected. The precise operation of cranes can ensure the accurate installation and reliability of such equipment, which improves the quality and safety of transmission lines.
Insufficient Investment In Electricity Leads To Aging Equipment
Insufficient investment in electricity leads to aging equipment, market design defects and other reasons of the power management institutional mechanism, causing or worsening power outages in a total of 43 cases, accounting for 31%; according to the statistics of the U.S. Department of Energy (DOE), at the moment, 70% of the U.S. transmission lines and transformers have been in operation for more than 25 years, and 60% of the circuit breakers are in operation for more than 30 years, and the outdated grid facilities are facing the challenge of securing the The outdated grid facilities are facing a huge challenge to ensure the reliability of power supply. The flexibility of the power system is obviously insufficient. From the trend of changes in the U.S. power structure in recent years, coal power generation has shown a clear downward trend, and wind power, hydropower, and other new energy generation have gradually become the main force of the U.S. power source. Chevy Joseph Hydroelectric Power Station is located in the United States in the territory of Washington State on the main stream of the Columbia River, about 50km below the Big Gulik Dam. The project is mainly for power generation, with flood control, irrigation, runoff regulation, and other comprehensive benefits. A total of 719,000 cubic meters of concrete was poured for the main dam, and gantry cranes were used to carry out material handling and assist in pouring before pouring. In addition, the crane also plays an indispensable role in the hydropower station gate lift. The gantry cranes are set up in a closed machine room to improve the working conditions, the machine room can be installed with repair Single Girder EOT cranes, gantry columns can be set up on the rotating column cantilever crane (slewing crane), which is used to expand the scope of work.
Accidental Or Man-Made Accidents
Accidental or man-made accidents cause 14 cases, accounting for 10%; after the replacement of power equipment installation, the facilities should be regularly overhauled and maintained: cranes are used in the construction of electric power projects to install a variety of power equipment, such as transformers, cables, generator sets and so on. These equipments usually weigh a lot and require lifting, positioning and installation of cranes to ensure their safety and normal use. A more typical example is the 2015 Turkish blackout, which was triggered by the scheduled maintenance of the main transmission corridors during heavy load hours, affecting 90% of the total population of Turkey.
Accidental Or Man-Made
Cyber-attack causes, causing 4 cases, accounting for 3%. The blackout accident caused by a cyber attack has the characteristics of hiddenness, complexity, defense difficulty, and physical damage. The more typical ones are the 2015 Ukraine blackout and the 2019 Venezuela blackout, affecting a population of 230,000 and 32 million people, respectively, and the United States has carried out the construction of electric power cybersecurity protection capacity in recent years.
Lifting equipment plays an important role in the power industry. The power industry is a highly safe and risky industry in which the use of lifting equipment is very important. Lifting equipment is mainly used for handling and installation of various power equipment such as generator sets, transformers etc. They play a vital role in the power industry.
At present, human beings encountered global warming and other environmental problems, so that the leapfrog development of renewable energy has become the consensus of all parties. large-scale renewable energy grid consumption will further increase the vulnerability of the power system, safe and reliable operation of the pressure increases. Power system security protection is a systematic project, from the known lessons learned, should be enhanced through technical means to enhance the resilience of the power grid, through the optimization of the management system mechanism to ensure the orderly operation of the system, enhance the prevention of man-made accidents, and enhance the ability to protect network security. In the future, the goal should be to continuously improve the resilience of the power grid, optimize the management system and mechanism, ensure the orderly operation of the system, enhance the prevention of man-made accidents, and enhance the ability of network security protection, etc., and continuously improve the safety and reliability of the electric power system in terms of policy, technology, management, and funding.
Website of Source: https://www.dgcrane.com/
Source: Story.KISSPR.com
Release ID: 1408079