• Product
  • Suppliers
  • Manufacturers
  • Solutions
  • Free tools
  • Knowledges
  • Experts
  • Communities
Search


Free Expert Guides on Power Systems, Circuit Design & Electrical Troubleshooting

Access free engineering resources from IEE Business—covering power design, circuit layout, equipment selection, and troubleshooting. Expert-developed guides help engineers, procurement, and project teams make better decisions. Stay ahead on smart grids, renewables, efficiency, and AI tools. Improve reliability, reduce downtime, and enhance outcomes with real-world solutions. Explore our knowledge hub today.
Rockwill Powers Cambodia’s Battambang Solar-Storage Project
The Battambang Conch PV + Energy Storage Power Station in Cambodia has successfully completed its grid-connected trial operation. The project utilized medium-voltage switchgear supplied by Rockwill Intelligent Electric Co., Ltd. Despite numerous challenges—including an extremely tight delivery schedule—Rockwill Intelligent delivered high-quality products and exceptional service throughout project execution, earning consistent praise from the client.Located in Battambang, Cambodia, the Battambang
12/24/2025
Consult
Tip
Consult
Tip
Chinese Gas-Insulated Switchgear Enables Commissioning of Longdong-Shandong ±800kV UHV DC Transmission Project
On May 7, China's first large-scale integrated wind-solar-thermal-storage comprehensive energy base UHV transmission project—the Longdong~Shandong ±800kV UHV DC transmission project—was officially energized and put into operation. The project has an annual transmission capacity exceeding 36 billion kilowatt-hours, with new energy sources accounting for more than 50% of the total. After commissioning, it will reduce carbon dioxide emissions by approximately 14.9 million tons annually, contributin
12/13/2025
Consult
Tip
Consult
Tip
Ultra-Low Partial Discharge 750kV UHV Transformers for Xinjiang Project
Recently, a Chinese transformer manufacturer independently designed and manufactured six 750kV ultra-high voltage transformers for a 750kV boosting substation project in Xinjiang. All products passed factory acceptance tests and type tests on the first attempt, obtaining KEMA type test reports. Testing confirmed that all performance indicators exceed national standards and technical agreement requirements. Notably, the high-voltage partial discharge is only 8pC and the medium-voltage partial dis
12/12/2025
Consult
Tip
Consult
Tip
China Advances EHV Tech with 750kV Autotransformer
On August 10, a self-developed 750 kV single-column, high-capacity autotransformer manufactured by China Transformer Manufacturing Company successfully passed the national-level technical appraisal for new products. Experts at the appraisal meeting unanimously concluded that the product’s key technical specifications have reached an internationally leading level among similar products, marking a significant advancement for China in the design and manufacturing of extra-high-voltage (EHV) transfo
12/11/2025
Consult
Tip
Consult
Tip
Chinese Grid Technology Reduces Egyptian Power Distribution Losses
On December 2nd, the South Cairo distribution network loss reduction pilot project in Egypt, led and implemented by a Chinese power grid company, officially passed the acceptance inspection by the South Cairo Electricity Distribution Company of Egypt. The comprehensive line loss rate in the pilot area decreased from 17.6% to 6%, achieving an average daily reduction of lost electricity of approximately 15,000 kilowatt-hours. This project is the first overseas distribution network loss reduction p
12/10/2025
Consult
Tip
Consult
Tip
Chinese Protection Relay Earns IEC 61850 Ed2.1 Level-A Certification
Recently, the NSR-3611 low-voltage protection and control device and the NSD500M high-voltage measurement and control device—both developed by a Chinese protection and control equipment manufacturer—successfully passed the IEC 61850 Ed2.1 Server Level-A certification test conducted by DNV (Det Norske Veritas). The devices have been awarded the international Level-A certification by the Utilities Communication Architecture International Users Group (UCAIug). This milestone marks the manufacturer
12/02/2025
Consult
Tip
Consult
Tip
Chinese String Inverter TS330KTL-HV-C1 Obtains UK G99 COC Certificate
The UK grid operator has further tightened certification requirements for inverters, raising the market entry threshold by mandating that grid-connection certificates must be of the COC (Certificate of Conformity) type.The company’s self-developed string inverter, featuring a high-safety design and grid-friendly performance, has successfully passed all required tests. The product fully complies with the technical requirements for four distinct grid-connection categories—Type A, Type B, Type C, a
12/01/2025
Consult
Tip
Consult
Tip
China Develops Largest 750kV 140Mvar Stepped-Controlled Reactor
Chinese reactor manufacturer successfully completed all tests in one go for the nation’s largest-capacity 750 kV, 140 Mvar stepped-controlled shunt reactor developed for the Turpan–Bazhou–Kuche II Circuit 750 kV transmission and transformation project. The successful completion of these tests marks a new breakthrough in the core manufacturing technology of 750 kV reactors by the Chinese manufacturer, pioneers a new field for 750 kV stepped-controlled shunt reactors in China, and lays a solid fou
12/01/2025
Consult
Tip
Consult
Tip
Send inquiry
+86
Click to upload file
Download
Get the IEE Business Application
Use the IEE-Business app to find equipment, obtain solutions, connect with experts, and participate in industry collaboration anytime, anywhere—fully supporting the development of your power projects and business.