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Why is AC better for long distance power transmission than DC? www.forumelectrical.com www.forumautomation.com www.automationforum.co DC is used instead of AC for long-distance electric power lines in some cases because it has some advantages over AC transmission. Some of the advantages are: 1- DC transmission has lower losses than AC transmission, as it does not have the effects of capacitance, inductance, and skin effects that cause power loss in AC transmission. 2- DC transmission can transmit more power over the same transmission line, as it can use both conductors for carrying current, while AC transmission uses only one conductor at a time due to phase differences. 3- DC transmission has better voltage regulation than AC transmission, as it does not have a voltage drop due to reactance. 4- DC transmission can avoid the problems of synchronization, stability, and power factors that affect AC transmission. However, DC transmission also has some disadvantages, such as: 1- DC transmission requires more complex and expensive equipment to convert AC to DC and vice versa, such as rectifiers, inverters, and choppers. 2- DC transmission is not suitable for applications that require varying voltage levels, such as motors and transformers. 3- DC transmission is more prone to faults and corona losses than AC transmission. Therefore, the choice of DC or AC transmission depends on various factors, such as the distance, the load, the cost, and the availability of technology. Generally, DC transmission is preferred for long-distance, high-voltage, point-to-point transmission, such as submarine cables or interconnecting grids. AC transmission is preferred for short-distance, low-voltage, multi-point transmission, such as distribution networks or local grids. #instrumentation #instrumentationandcontrol #controlengineering #engineering #engineer #engineers #automation #industrialautomation #instrumentengineer #instrumenttechnician #processengineering #processautomation #processinstrumentation #industrialengineering #transformers #transformer #circuits #voltage #current #electrical #electricalengineering #electric #electricalengineer #electricalengineers #electrician #electricians #electricalengineeringjobs #electricalsafety #electricaltesting #electricalmaintenance #ac #dc #transmissionlines #transmission #transmissionline #transmission

Welcome to our LinkedIn presentation on contactors, a vital component in electrical control systems. In this video, we will explore what contactors are, how they work, and their essential role in various industrial and commercial applications. We'll delve into their key components, functions, and benefits, providing you with a comprehensive understanding of why contactors are indispensable in managing high voltage and high current electrical circuits. Whether you're an industry professional or simply interested in electrical engineering, this video will offer valuable insights into the world of contactors. #classiccontrol #conductor #automation #sludge #ABB #SchneiderElectric #Eaton #MitsubishiElectric #Siemens I wish you love this 🤍⚡

Why is AC better for long distance power transmission than DC? www.forumelectrical.com www.forumautomation.com www.automationforum.co DC is used instead of AC for long-distance electric power lines in some cases because it has some advantages over AC transmission. Some of the advantages are: 1- DC transmission has lower losses than AC transmission, as it does not have the effects of capacitance, inductance, and skin effects that cause power loss in AC transmission. 2- DC transmission can transmit more power over the same transmission line, as it can use both conductors for carrying current, while AC transmission uses only one conductor at a time due to phase differences. 3- DC transmission has better voltage regulation than AC transmission, as it does not have a voltage drop due to reactance. 4- DC transmission can avoid the problems of synchronization, stability, and power factors that affect AC transmission. However, DC transmission also has some disadvantages, such as: 1- DC transmission requires more complex and expensive equipment to convert AC to DC and vice versa, such as rectifiers, inverters, and choppers. 2- DC transmission is not suitable for applications that require varying voltage levels, such as motors and transformers. 3- DC transmission is more prone to faults and corona losses than AC transmission. Therefore, the choice of DC or AC transmission depends on various factors, such as the distance, the load, the cost, and the availability of technology. Generally, DC transmission is preferred for long-distance, high-voltage, point-to-point transmission, such as submarine cables or interconnecting grids. AC transmission is preferred for short-distance, low-voltage, multi-point transmission, such as distribution networks or local grids. #instrumentation #instrumentationandcontrol #controlengineering #engineering #engineer #engineers #automation #industrialautomation #instrumentengineer #instrumenttechnician #processengineering #processautomation #processinstrumentation #industrialengineering #transformers #transformer #circuits #voltage #current #electrical #electricalengineering #electric #electricalengineer #electricalengineers #electrician #electricians #electricalengineeringjobs #electricalsafety #electricaltesting #electricalmaintenance #ac #dc #transmissionlines #transmission #transmissionline #transmission

Need to convert electrical units? Whether it's volts to amps, watts to kilowatts, or ohms to siemens, we've got you covered! ⚡ Check out this Electrical Converter https://lnkd.in/epb-DWcB for clear and easy conversions. Perfect for electricians, engineers, and anyone working with electrical systems! 🔌 What electrical conversion do you find most challenging? #ElectricalConversion #ClearFunda #Volts #Amps #Watts #Kilowatts #Ohms #Siemens #UnitConversion #Engineering #Electricity #Power #Circuits #RenewableEnergy #Electronics"

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Understanding Fault Currents in Power Systems: Near vs. Far Source ⚡ In the realm of electrical engineering, fault currents play a pivotal role in maintaining the reliability and safety of power systems. Today, let's delve into a fundamental aspect: the differences between fault currents near to the source and those occurring farther downstream. Near Source Fault Currents: Near the source, fault currents are typically characterized by their high magnitude and rapid response. These currents occur close to the generating station or transformer and can exert substantial stresses on equipment. Engineers must carefully assess these conditions to ensure that protective devices, such as circuit breakers and relays, are appropriately rated to swiftly isolate faults and prevent cascading failures. Far from Source Fault Currents: As fault currents propagate through the distribution network, their characteristics evolve. Factors such as impedance of transmission lines and transformer impedance influence the amplitude and duration of fault currents. Engineers face the challenge of accurately predicting these currents to optimize the coordination of protective devices across the network. This ensures selective tripping to minimize downtime and maintain service continuity. #PowerSystems #ElectricalEngineering #FaultCurrents #PowerGrid #EngineeringExcellence #EnergyManagement POWER PROJECTS

Starting a three-phase electric motor using the star-delta method. This method is used to decrease the initial surge of current when starting the motor, which can be as much as 10 times the normal operating current. By doing this, it helps to prolong the motor's lifespan. #Electric #Electrical #Engineering #Electrical_Engineering #Panel #Automation #Wiring #motor #Nf_C_15_100 #Industry

I am often asked, "What do you do for a living?" My answer is, "I am a power engineer; you can't tell by looking at me." You should see their face: PRICELESS. The magnetic field produced by an electric current is proportional to its magnitude. EEEngineering, LLC #engineering #electrical #powersystems #electricalengineering

Electrifying Innovation: Streamlining Insulation Testing for Enhanced Safety Hello LinkedIn community! I'm excited to announce a major milestone that has the potential to significantly impact how we conduct insulation resistance tests on electrical motors and cables. I'm proud to share a recent achievement that's poised to make a significant impact on electrical safety. By combining advanced data analytics with refined testing protocols, we've reduced testing time by 30%, enhanced accuracy, and improved safety. This innovation is a testament to our commitment to continuous improvement and electrical engineering excellence. Background: As many of you know, regular insulation testing is crucial for maintaining the safety and efficiency of electrical installations. Traditionally, using a Megger to measure the insulation resistance can be time-consuming and prone to errors, especially in environments with extensive electrical setups. Innovation: Over the past few months, I've been working on refining our approach to using the Megger tester. By integrating advanced data analytics and modifying our testing protocols, we’ve not only expedited the process but also enhanced the accuracy of our measurements. Key Improvements: 1. Speed: We’ve reduced the testing time by 30%, allowing for quicker assessments and less downtime. 2. Accuracy: Enhanced accuracy in our readings helps in predicting potential failures before they result in costly downtimes. 3. Safety: With more reliable data, we can better ensure the safety of both the equipment and our personnel. This breakthrough is not just about faster testing—it's about making our electrical infrastructure safer and more reliable. I’m excited about rolling this out across our operations and seeing the positive impact it will unfold. I’d love to hear from others who are exploring similar advancements. What challenges have you faced in electrical testing, and what solutions have you found effective? Let’s connect and lead the way to safer and more efficient electrical engineering practices! #ElectricalEngineering #Innovation #SafetyFirst #ElectricalSafety #ContinuousImprovement #ElectricalMotor #CableTesting #InsulationResistanceTest #ResistanceTest