• 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.
How to Wire Solar Panel & Batteries in Parallel for 12V System
12V Solar Panel and Battery Parallel Wiring for Power SystemsA 12V connection is the most prevalent setup for wiring solar panels to batteries. Typically, to convert this 12VDC power into a 120/230VAC system suitable for common household use, both the photovoltaic (PV) panels and batteries are connected in parallel. This configuration enables efficient power generation, battery charging, and powering of AC loads, as well as directly operating DC - powered appliances. Let's explore the step - by
05/07/2025
Consult
Tip
Consult
Tip
Difference between Lightning Arrester and Surge Arrester
What is a Surge Arrester?A surge arrester is a crucial voltage - limiting device typically installed within the equipment panel of an electrical installation. Its primary function is to safeguard the insulation, equipment, and machinery from various electrical hazards. It not only shields against the damaging effects of lightning strikes but also protects against transient overvoltages generated by events such as switching operations, arcing, load shedding, and electrical faults like ground faul
05/07/2025
Consult
Tip
Consult
Tip
Transformers Insulation Materials in Oil-Immersed & Dry Type T/F
Insulation in Oil-Immersed TransformersIn contemporary oil - immersed transformers, the insulation of high - voltage windings follows a widely adopted approach. Typically, the wire is coated with enamel, and kraft paper is inserted between each layer of the winding. This combination provides reliable electrical insulation and mechanical protection for the high - voltage windings, safeguarding them against electrical breakdown and physical damage.For low - voltage windings, a different insulation
05/07/2025
Consult
Tip
Consult
Tip
Circuit breakers basic control circuit functions diagram
Circuit Breakers Control Circuit Functions Diagram Description Circuit Breaker Main Contacts: These are not part of the control circuit. They serve as the primary conducting elements that open and close to interrupt or establish the main electrical circuit. Mechanical Operating Mechanism: This mechanism releases the energy required to move the main contacts between the open and closed positions. It is also excluded from the control circuit proper. Its role is crucial in physically actuating the
05/07/2025
Consult
Tip
Consult
Tip
Carrier Current Protection of Transmission Lines
Carrier Current Protection Scheme for Transmission LinesThe carrier current protection scheme is predominantly employed for safeguarding long - distance transmission lines. Unlike conventional protection methods that focus on comparing actual current values, this scheme operates by comparing the phase angles of the currents at the two ends of the line. Based on the phase - angle relationship, it can accurately determine whether a fault is occurring within the protected line section (internal fau
05/06/2025
Consult
Tip
Consult
Tip
Busbars and Connectors in HV and EHV installations
Busbars and Connectors in Indoor and Outdoor InstallationsWhat is an Electric Busbar?An electric busbar is defined as a single conductor or a group of conductors that serve the purpose of collecting electrical power from incoming feeders and distributing it to outgoing feeders. In essence, it acts as a crucial junction where the currents from incoming and outgoing feeders converge, effectively aggregating electrical power at a single point within an electrical system. This function makes busbars
05/06/2025
Consult
Tip
Consult
Tip
IEC61850 model for GIS with Non Conventional Instrument Transformers (NCIT)
IEC 61850 Standards and NCIT - Related Communication in GISThe IEC 61850 8 - 1 standard is specifically applicable to station bus communication, providing a framework for data exchange and interoperability within substation automation systems. On the other hand, the IEC 61850 9 - 2 LE standard is directly relevant to the communication of Non - Contact Inductive Transducer (NCIT) sensors.Ethernet optical communication drivers play a crucial role in this setup. Their significance stems from the ut
05/06/2025
Consult
Tip
Consult
Tip
Why are Overhead Power Lines Loose on Electric Poles & Towers?
Why are Overhead Power Lines Loose on Utility Poles and Transmission Towers?In today's era of rapid technological advancement, the transportation of people, goods, and services has become significantly easier. Geographical distance is no longer a formidable obstacle. Just as these tangible entities can be efficiently conveyed over long distances, electricity also needs to be transmitted far and wide. However, unlike physical goods, electricity requires a medium for its journey.You may have frequ
05/05/2025
Consult
Tip
Consult
Tip
Sources and Causes of Low Power Factor
Causes and Sources of Poor Power FactorIn an electrical power system, the power factor is defined as the ratio of real power (measured in kilowatts, kW) to apparent power (measured in kilovolt - amperes, kVA). A low power factor indicates that the electrical load is not efficiently utilizing the available electrical power. This inefficiency can lead to several consequences, such as elevated electricity costs for consumers and decreased overall system efficiency. In this article, we will delve in
05/05/2025
Consult
Tip
Consult
Tip
What is Electronic Relay?
Definition and Basics of Electronic RelaysDefinition: An electronic relay is an electronic switch that operates to open or close circuit contacts using electronic components, eliminating the need for any mechanical movement. In electrical systems, the current carrier pilot relaying scheme is commonly employed in these relays for the protection of transmission lines. This approach enables efficient and precise detection of faults, ensuring the safety and reliability of the power grid.Electronic r
05/05/2025
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.