1.1 Historical development of Ultracapacitor Ultracapacitor first appeared in the middle of the 18th century. Pieter Van Musschenbrock of Leiden University in the Netherlands and Ewald Geory Von Kleist of Germany developed the Leiden bottle, which is recognized as the prototype of all capacitors. In 1879, Hermann Ludwig Ferdinand Von Helmholtz discovered the interface double electric [...]
✨Metal oxide (hydroxide) is currently the material with the highest specific capacitance and energy density. In addition, it has the advantages of rich raw materials, diverse morphology and structure, low resistance and high power density, and has become the recognized preferred material for supercapacitors electrodes. 🌟The supercapacitors with metal oxide as electrode material belongs to Faraday [...]
On November 9-10, 2022, Xuansn Capacitor Electronics specially invited Mr. Huang Haijian from Renben (Dongguan) Education and Culture Consulting Co., Ltd. to the company to bring a two-day course "Enhancing the Management Ability of Manufacturing Enterprise Team Leaders" for all managers. . With the teacher's eloquent speech and the wholehearted dedication of all the students, the [...]
1 Precautions for the operation and maintenance of filter and shunt capacitor devices 1.1 Monitoring of capacitor unbalanced current operation 🌟One of the most important functions of the AC filter and the shunt capacitor is to provide reactive power for the DC system. When the reactive power does not meet the absolute minimum filter (the absolute [...]
1. The Importance of Equipment Installation Tracking 💐The DC converter station usually shoulders the important task of interconnecting large-scale power grids and transmitting electric energy with high power. The safe and stable operation of a single station often determines the safe and stable operation of the large power grid system, and the safe and stable operation [...]
Power capacitor are the most important equipment in AC and DC filters and shunt capacitor devices in DC converter stations. Understanding and mastering the production process of capacitors has certain practical significance for us to better maintain equipment and deal with faults during equipment operation. I. Overview 🌱Capacitors have strict production processes in equipment manufacturers, and [...]
🌱China's HVDC transmission projects have developed rapidly after 2000, and the rapid development of HVDC transmission projects has led to a rapid increase in the demand for different types of power capacitors in converter stations. For a DC transmission project, the capacity of the power capacitors used is far from the capacity of the capacitors required [...]
Fire Safety In order to promote the "enterprise" work of fire safety publicity, we will effectively strengthen the enterprise's fire safety awareness and escape and self-rescue ability, and resolutely prevent and resolve major fire safety risks and hidden dangers. This afternoon, the Fire Rescue Brigade carried out in-depth fire safety drills. The drill [...]
1. Composition and structure of filter and parallel capacitors device 🍏The AC filter consists of high and low voltage capacitor banks (capacitor towers), reactors, resistors, lightning arresters, current transformers (oil-filled, silicone rubber, photocurrent transformers) and other metal connectors, supports, protective parts, etc. composition. The AC filters often used in the design of DC converter stations include [...]
Let's go through this chapter to understand the role of the lower parallel capacitor device and the harm of harmonics. 🌈Usually DC transmission converter stations are divided into DC area and AC area. Compared with conventional AC substation equipment, there are essential differences between DC area equipment and conventional AC substation equipment. There is no essential [...]