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 »
Sometimes we see small isolation transformers in electronic devices and might be wondering what the use of this mini transformer is. Single-phase power wiring uses a hot wire, a neutral wire, and a ground wire. If multiple devices share a single power line, those devices can have different ground potentials. This creates a problem known …
An electrical substation is one of the most important building blocks of the power system. They are used to transform AC voltages from one level to another voltage level. We may not notice, but after generation from an electrical power plant, electrical power travels a great distance and is transformed into different voltage levels throughout …
Introduction: What does one do when the neutral point is not available? As the ungrounded system problems became more apparent to industry, they recognized that ground their delta-connected systems was to their advantage. Some took the approach of purposely grounding one phase. Neutral points are an excellent way to ground an ungrounded delta system because …
Grounding Transformer: Solution To The Ungrounded System? Read More »
What is Current Transformer? A current transformer is an instrument transformer also known as CT, used to step down the line current of an electrical circuit so that it can be used in the revenue meters and in the protection relay. As we know typically the line currents are high enough. So to safely use …