Synchronous machines are essential and valuable parts of power systems. These machines are generally well constructed and robust. However, they are subjected to a wide variety of abnormal operations due to stress involved in electromechanical energy conversion process. Operation of synchronous machines under fault conditions disturbs their performances and declares their life spans. Also, persistent faults damages these machines and consequences outage time for repairing is costly. Thus, fault detection and condition monitoring of the synchronous machines allow more flexibility in operation by knowing the performance and extend machine life by adjusting the operation to avoid known operating regimes or ranges and cost effectiveness. Consequence of many electrical and mechanical faults occurring during the operation of electrical machines is the eccentricity between the rotor and stator. Eccentricity is categorized into three general groups: static eccentricity (SE), dynamic eccentricity (DE) and mixed eccentricity (ME). Read more about this article by the link image below or find out more of case studies at: 🔗 www.powerquality.blog 🌐 www.powerquality.co.th

Greetings!!! The following Analysis will be performed by ETAP 1.  Load Flow Analysis 2.  Short Circuit Analysis 3.  Arc Flash Analysis 4.  Relay Coordination Study 5.  Motor Starting Analysis 6.  Transient Stability Study 7.  Power Factor Compensation Study 8.  Reliability Study 9.  In-Rush Study 10. Underground Raceway System 11. Substation Earthing Design 12. Grid Islanding Study The following Grid Compliance Analysis performed by DIgSILENT 1. Load Flow and Reactive Power Capability Studies 2. Voltage Fluctuation Flicker and Voltage Unbalance Study 3. G5/5 Stage 3 Harmonic Study 4. Protection Coordination Study 5. Fault level Studies 6. FRT & FFCI Studies 7. Voltage Control and Reactive Power Stability 8. Frequency response Studies The following Analysis will be performed by PSCAD 1.    RMS/EMT Benchmarking Study 2.    Sub-Synchronous Resonance Study (SSCI, and SSTI) 3.    Controller Interaction Study 4.    Small Signal Analysis Study 5.    EMT Model Development 6.    Renewable Generation Compliance Studies 7.    PSCAD Model Validation Study 8.    Transmission Line Reclosing Study 9.    Insulation Coordination Study # Power System Analysis #ETAP #DIgSILENT # PSCAD # Grid Compliance Analysis

🚀 Boosting Accuracy in Subsonic Wind Tunnels: A Precision Challenge 🚀 In the world of aerospace engineering, achieving accurate results in subsonic wind tunnels is critical for optimizing designs and ensuring safety. However, many engineers face common challenges that can lead to inaccuracies, impacting the reliability of test data. 🛑 The Problem: 1. Flow Uniformity Issues: Turbulence and inconsistent airflow can skew results. 2. Instrument Calibration: Over time, sensors can drift, leading to inaccurate measurements. 3. Wall and Model Interference: Tunnel walls and model supports can affect the flow, altering the data. 4. Environmental Variability: Fluctuations in temperature and pressure can introduce errors. ✅ The Solution: 1. Enhancing Flow Uniformity: Use honeycombs and screens to smoothen airflow and reduce turbulence before it enters the test section. 2. Regular Calibration: Keep all instruments, from pressure transducers to force balances, regularly calibrated for precision. 3. Mitigating Interference: Optimize model mounts and apply boundary layer control to reduce the influence of walls and supports. 4. Control the Environment: Maintain stable temperature and pressure conditions to ensure consistent airflow characteristics. By addressing these challenges with the right techniques, we can significantly enhance the accuracy of subsonic wind tunnel testing, driving innovation and safety in aerospace design. 🌐✈️ #AerospaceEngineering #WindTunnel #PrecisionEngineering #AerospaceTesting #InnovationInEngineering #Subsonic #FlowControl #CFD #AerospaceDesign #EngineeringExcellence

In this video presents the definition of Computational Fluid Dynamics (CFD) and explores some of its most significant applications. CFD is applied in mechanical systems designs to find problems before installing the system.   Stay tuned to learn more about each CFD application! #CFD #Engineering #Innovation #Technology #Mechanical #KSA #Jordan #vision2030 #HVAC #MEP #computational_fluid_dynamics #FDS #thermal_comfort #jet_fans #Energy_Auditing #Energy_Consultancy #Energy_Modeling #Energy_Solutions #MEP_Design #CFD_Analysis_Services

Let's face it, sometimes a good old fashioned napkin sketch just doesn't cut it. Especially when you're dealing with the complexities of fluid flow.    That's where our APA Engineering CFD services come in!   Our CFD wizards use cutting-edge simulation tools to analyze how fluids (think air, water, even molten chocolate! 😊 ) interact with your designs.

As electric motor designs push the boundaries—becoming lighter and more energy-dense—𝘁𝗵𝗲𝗿𝗺𝗮𝗹 𝗺𝗮𝗻𝗮𝗴𝗲𝗺𝗲𝗻𝘁 emerges as one of the key engineering challenges. This post showcases how 𝗮𝗰𝘁𝗶𝘃𝗲 𝗼𝗶𝗹 𝗰𝗼𝗼𝗹𝗶𝗻𝗴 addresses high thermal loads and how 𝗵𝗲𝗮𝘁 𝘁𝗿𝗮𝗻𝘀𝗳𝗲𝗿 𝘀𝗶𝗺𝘂𝗹𝗮𝘁𝗶𝗼𝗻𝘀 help refine designs to achieve greater efficiency and durability.   To learn more, join our free webinar: 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝗶𝗮𝗹 𝗔𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀 𝗼𝗳 𝗖𝗙𝗗 𝗮𝗻𝗱 𝗔 𝗣𝗿𝗮𝗰𝘁𝗶𝗰𝗮𝗹 𝗜𝗻𝘁𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝗼𝗻 𝘁𝗼 𝗦𝗣𝗛 𝗦𝗶𝗺𝘂𝗹𝗮𝘁𝗶𝗼𝗻 📆 Dec 3, 2 PM CET: https://lnkd.in/gXtSUrvb 📆 Dec 5, 5 PM CET: https://lnkd.in/gBPMK5HE   #ThermalManagement #CFDApplications #SPH #engineering #simulation

LOAD MODELLING Load modelling involves creating mathematical representations of electrical loads to analyze their behavior and impact on power systems under varying conditions TYPES OF MODELING 🤔  Constant power load 🤔  Constant impedance load 🤔  Constant current load 👉     Constant power load               A constant power load is maintains a fixed power consumption regardless of variations in voltage or current. This type of load can lead to increased current draw when voltage decreases, potentially causing instability in power systems. 💡P = V and I 👉    Constant impedance load                A constant impedance load is an electrical load that maintains a fixed resistance, resulting in power consumption that varies with changes in voltage or current. As voltage increases, the current remains proportional, leading to predictable power usage according to Ohm's law. 💡 P directly proposal to V2 👉    Constant current load A constant current load draws a fixed amount of current regardless of changes in voltage. This type of load is common in applications. 💡P directly proposal to V POWER PROJECTS RAJESH S Madhan Raj Mohamed Meeran Mahendiran A GE Vernova Tata Electronics DIgSILENT Pacific #digsilent #powerfactor #poweranalysis #loadflow #simulation #loadmodelling #renewableintegration

Twelve-Step Voltage Source Inverter: A Three-Phase Six-Levels Inverter Using Planar Transformers Haitham KANAKRI, Euzeli Cipriano DOS SANTOS JR., and Maher RIZKALLA All authors are with the Purdue School of Engineering and Technology, Purdue University at Indianapolis, Indianapolis, Indiana 46202-5143, United States (e-mail: hkanakri@purdue.edu; edossant@purdue.edu; mrizkall@ purdue.edu).  Abstract—Multi-level inverters (MLIs) are becoming increasingly popular in high-speed motor drive systems for modern electric aircraft applications. However, two significant limitations are associated with current MLIs technology: (1) the high switching losses due to the high carrier switching frequency and (2) the complex modulation schemes required to maximize the DC source utilization. Consequently, the development of new topologies to mitigate these limitations is imperative for the rapid advancement of future electric aircraft systems. This paper introduces a six-level twelve-step inverter (TSI) that utilizes twelve switches and three planar high-frequency transformers. Implementing the proposed configuration ensures maximum DC source utilization, with a peak phase voltage of 5Vdc / 3. The proposed solution presents less semiconductor losses than the conventional MLIs, surpassing conventional MLIs, associated with neutral point clamped (NPC), flying capacitor (FC), and cascaded H-bridge (CHB). Experimental results demonstrate the TSI’s operation under static and dynamic conditions and its capability to function in three different modes: three-step, six-step, and twelve-step operations. The paper also offers a comprehensive design of the proposed planar transformer, supported by theoretical analysis, finite element analysis (FEA), and experimental validation. VIEW FULL PAPER: https://lnkd.in/dj7Mntg5

#100daysamplifierdesign day 10 Today, I delved into using SPICE netlists, a vital aspect of integrated circuit design. Crafting a SPICE netlist for an inverter circuit was both challenging and enlightening. In the netlist, I defined transistors M1 and M2 for the PMOS and NMOS transistors, respectively, along with voltage sources for power supply and input. By running simulations, I could analyze the circuit's behavior. This netlist allowed me to: Conduct an Operating Point Analysis to understand DC voltages and currents. Perform Transient Analysis to observe how the circuit responds over time to input changes. Through these simulations, I gained valuable insights into the inverter's functionality and performance, crucial for refining its design. Pipeloluwa Olayiwola @IEEECAS

Electrical Transient Analysis Program is one of the most important in short circuit current calculation for Transformer. #ETAP #Design #Transformer #Powersystem #Electricalengineer #Shortcircuit