AC reactors are used in AC circuits, including three-phase AC reactors and single-phase AC reactors. On the other hand, the DC reactor is used in the DC system circuit, only single-phase. The DC reactor, also known as the DC smoothing reactor, is used for the DC side of the converter. The DC current with the AC component …
The difference between DC reactor and AC reactor Read More »
To determine the transformer fault current we need to talk about one very important transformer parameter shoirt circuit impedence of a transformer. The meaning of short-circuit impedance The short-circuit impedance of the transformer is more often called the impedance voltage, and the symbol is Uk%.The measurement method of impedance voltage is to short-circuit the low-voltage …
Transformer Fault Current: What It Is and How to Calculate it? Read More »
Due to environmental protection, energy-saving, and the lightness of electric vehicles, electric vehicles have been paid more and more attention by various countries. At present, electric vehicles are in a stage of rapid development. As the core components of electric vehicles, electric vehicle motors mainly include DC motors, AC three-phase induction motors, permanent magnet brushless DC …
What Are The Types of Motors Used In The Mainstream Electric Vehicles? Read More »
An induction motor refers to a motor that relies on electromagnetic the stator and rotor to induce a current in the rotor to realize electromechanical energy conversion. The stator of the induction motor consists of three parts: the stator core, the stator winding, and the frame. The rotor consists of a rotor core, a rotor …
With the rapid development of the national economy, electricity demand has also increased rapidly, and the power grid structure has become increasingly complex. The traditional power grid structure of centralized power generation and long-distance transmission of large power grids is also facing more and more challenges. The cost is high, the operation is complex, and …
A Chinese company showed off a record-breaking electric vehicle (EV) battery on Thursday. It has a volume utilization efficiency of 72 percent, an energy density of up to 255 watt-hour/kilogram (Wh/kg), the world’s highest integration level, and can go more than 1,000 kilometers on a single charge. The battery, called Qilin, after a legendary creature …
A new EV battery from China can travel 1,000 miles on a single charge. Read More »
Energy demand fluctuates throughout the day which impacts energy prices and costs you money, utilities must always have enough energy supply to accommodate consumer energy demand. Now imagine a really hot day when everyone turns their A. C. At the same time energy demand spikes, the grid gets stressed and electricity prices go up when …
Power system state estimation is still a new branch of electrical power engineering, aged approximately three decades. Various research has been happening on this topic, but if I have to take a textbook to get a sound understanding, I would definitely take the book written by Dr. Ali Abur. It is concise and written in …
The smart grid is a new technology that changes the way electricity is produced, delivered, and consumed. It’s the next step in the evolution of the electricity grid. The smart grid is a combination of the traditional grid and information technology. The conventional grid transfers electricity from power plants to consumers, and it’s based on …
A blockchain is an encrypted, decentralized public ledger that keeps track of transactions and data transfer. It’s an innovative, new technology that is poised to disrupt many industries and has the potential to change the way we interact with one another. What is blockchain technology? BlockChain is an innovative type of distributed ledger that was …
Blockchain Technology and its application in Electrical Distribution System Read More »