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Our payment security system encrypts your information during transmission. We don’t share your credit card details with third-party sellers, and we don’t sell your information to others. Please try again.Please try again.Please try again. It offers comprehensive information on the generation, transmission, distribution, control, operation, and application of electric power. Completely revised throughout to address the latest codes and standards, the 16th Edition of this renowned reference offers new coverage of green technologies such as smart grids, smart meters, renewable energy, and cogeneration plants. Modern computer applications and methods for securing computer network infrastructures that control power grids are also discussed. Featuring hundreds of detailed illustrations and contributions from more than 75 global experts, this state-of-the-art volume is an essential tool for every electrical engineer.Then you can start reading Kindle books on your smartphone, tablet, or computer - no Kindle device required. Show details Beaty is a Senior Member of IEEE. Donald G. Fink was director emeritus of the Institute of Electrical and Electronic Engineers (IEEE). Beaty is a Senior Member of IEEE. Donald G. Fink was director emeritus of the Institute of Electrical and Electronic Engineers (IEEE). McGraw-Hill authors represent the leading experts in their fields and are dedicated to improving the lives, careers, and interests of readers worldwideFull content visible, double tap to read brief content. Videos Help others learn more about this product by uploading a video. Upload video To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzes reviews to verify trustworthiness. Please try again later. jeffer 1.

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0 out of 5 stars I have a display with resolution 3840x2160 and can't read most of the numbers and text on over half of the tables. I have to really focus to see the text on most of the other tables. The regular book text is fine. Even with the built in magnifier for Windows and Kindle, the data in the tables and pictures is fuzzy and hard to read.When updating or revising, valuable information must not be ignored.For some 30 years I have looked upon this book as an excellent reference and take it with me world wide. It is not country specific and the text enables one to quickly change the results to the local situation. Since owning this handbook I have always tried to have a reasonably up to date edition. This one serves the purpose admirably. In my work I need to know about electrical, electronic, telecommunications and computer engineering. This is one book I would not be without to help keep my knowledge up to date.I had an earlier edition also. We don’t share your credit card details with third-party sellers, and we don’t sell your information to others. Please try again.Please try again.Please try again. Please try your request again later. Up-to-date coverage of every facet of electric power in a single volume This fully revised, industry-standard resource offers practical details on every aspect of electric power engineering. The book contains in-depth discussions from more than 100 internationally recognized experts. Generation, transmission, distribution, operation, system protection, and switchgear are thoroughly explained. Standard Handbook for Electrical Engineers, Seventeenth Edition, features brand-new sections on measurement and instrumentation, interconnected power grids, smart grids and microgrids, wind power, solar and photovoltaic power generation, electric machines and transformers, power system analysis, operations, stability and protection, and the electricity market.

Then you can start reading Kindle books on your smartphone, tablet, or computer - no Kindle device required. Show details Hide details Choose items to buy together.He is co-author of Electrical Power Systems Quality, co-editor of Handbook of Electric Power Calculations, and author of Fundamentals of Electric Power Quality. He is an IEEE Fellow. H. Wayne Beaty is the former managing editor of Electric Light and Power and co-editor of McGraw-Hill's Handbook of Electric Power Calculations, and co-author of Electric Power Systems Quality. He is the former managing editor of Electric Light and Power and Power Delivery Product News. Beaty is a Senior Member of IEEE. Surya Santoso, Ph.D., is a professor of Electrical and Computer Engineering at the Cockrell School of Engineering at the University of Texas at Austin. He is co-author of Electrical Power Systems Quality, co-editor of Handbook of Electric Power Calculations, and author of Fundamentals of Electric Power Quality. He is an IEEE Fellow. H. Wayne Beaty is the former managing editor of Electric Light and Power and co-editor of McGraw-Hill's Handbook of Electric Power Calculations, and co-author of Electric Power Systems Quality. Full content visible, double tap to read brief content. It also analyzes reviews to verify trustworthiness. Please try again later. Amazon Customer 5.0 out of 5 stars It covers many topics in the electrical engineering field, and will give you enough knowledge to be dangerous. If you are an engineer that is out of college and you're looking for a great desk reference, this is it. It can be a little general on some topics so don't expect to become an expert on anything by reading this book. I wish it had more in-depth on analysis on transformers and machinery.Anyway very happy with everything about this book!The entire industry is going through a point of inflexion, and this book helps us keep our feet on the ground, while creatively exploring the space above and beyond the ordinary.

The chapters are quite technical, also introduces the concepts from a very approachable level, in relatively simple easy to understand language. In particular, the chapter on Smart Grid and Microgrid is really useful. Our search algorithmHe is co-author of Electrical Power Systems Quality, co-editor of Handbook of Electric Power Calculations, and author of Fundamentals of Electric Power Quality.This fully revised, industry-standard resource offers practical details on every aspect of electric power engineering. The book contains in-depth discussions from more than 100 internationally recognized experts.This fully revised, industry-standard resource offers practical details on every aspect of electric power engineering. Standard Handbook for Electrical Engineers, Seventeenth Edition, features brand-new sections on measurement and instrumentation; interconnected power grids; smart grids and microgrids; wind, solar, and photovoltaic power generation; electric machines and transformers; power system analysis, operations, stability, and protection; and the electricity market.Collections of Units and Conversion Factors 1.17.3. Books and Papers Model of the Process of Measurement View sub-sections 2.3 Reference Source 2.3.3. No Stable Source Available 2.3.4. External Networks in Calibration 2.3.5. Propagating Uncertainties 2.3.6. Test Uncertainty Ratio View sub-sections 2.4 Sampling 2.5 Capacitance Measurements 2.10.3. Inductance Measurements 2.11. FREQUENCY MEASUREMENT View sub-sections 2.12. High Voltage and Resistance View sub-sections 2.13 Angle 2.13.3. Frequency 2.13.4. Rate of Change of Frequency 2.14 Metal Properties 3.1.3. Conductor Properties 3.1.4. Fusible Metals and Alloys 3.1.5. Miscellaneous Metals and Alloys 3.1.6. Bibliography View sub-sections 3.2 Magnetic Properties and Their Application 3.2.3. Types of Magnetism 3.2.4. Materials for Solid Cores 3.2.6. Carbon Steels 3.2.7. Materials for Laminated Cores 3.2.8. Materials for Special Purposes 3.2.9.

High-Frequency Materials Applications 3.2.10. Quench-Hardened Alloys 3.2.11. Bibliography View sub-sections 3.3 Insulating Gases 3.3.3. Insulating Oils and Liquids 3.3.4. Insulated Conductors 3.3.5. Thermal Conductivity of Electrical Insulating Materials Design Objectives 11.1.3. Reliability Comparisons 11.1.4. Arrangements and Equipment 11.1.5. Site Selection 11.1.6. Substation Buses 11.1.7. Clearance Requirements 11.1.8. Mechanical and Electrical Forces 11.1.9. Protective Relaying 11.1.10. Substation Grounding 11.1.11. Transformers 11.1.12. Surge Protection 11.1.13. References for Air-Insulated Substations View sub-sections 11.2 General Characteristics of Gas-Insulated Equipment 11.2.3. SF 6 Properties in Gas-Insulated Substations 11.2.4. GIS Sealing System 11.2.5. Enclosure and Conductor Design Features, Voltage Withstand, and Ampacity 11.2.6. GIS Typical Layout and Enclosure Designs 11.2.7. References for Gas-Insulated Substations Fundamentals 12.1.3. Severe Interrupting Conditions 12.1.4. High-Voltage Circuit Breaker Ratings and Capabilities 12.1.5. High-Voltage Circuit Breaker Construction 12.1.6. Testing and Installation of High-Voltage Circuit Breakers 12.1.7. Application and Selection of High-Voltage Circuit Breakers 12.1.8. Low-Voltage Circuit Breaker Ratings 12.1.9. Low-Voltage Circuit Breaker Construction 12.1.10. Application of Low-Voltage Circuit Breakers 12.1.11. References 12.1.12. Bibliography on Circuit Breakers View sub-sections 12.2 Metal-Clad Switchgear 12.2.3. Metal-Enclosed Interrupter Switchgear 12.2.4. Metal-Enclosed Gas-Insulated Switchgear 12.2.5. Metal-Enclosed Bus 12.2.6. Switchboards 12.2.7. Arc Resistant Metal-Enclosed Switchgear 12.2.8. Station-Type Cubicle Switchgear 12.2.9. References 12.2.10. Bibliography on Switchgear Assemblies View sub-sections 12.3 Switches View sub-sections 12.4 General Construction 12.4.3. Ratings 12.4.4. Selection and Application View sub-sections 12.5 Automated Switches View sub-sections 12.

6 Capacitor Units 12.6.3. Shunt Capacitors 12.6.4. Series Capacitor Banks 12.6.5. Capacitor Switching 12.6.6. References 12.6.7. Bibliography Magnetic Materials 13.1.3. Induced Voltage 13.1.4. Equivalent Circuit 13.1.5. Derivation of Equivalent Circuit Parameters View sub-sections 13.2 Temperature Rise 13.2.3. Ambient Temperature 13.2.4. Altitude of Installation 13.2.5. Impedance Voltage 13.2.6. No-Load Losses 13.2.7. Load Losses 13.2.8. Rated Voltages 13.2.9. Vector Group 13.2.10. Frequency 13.2.11. Short-Circuit Current 13.2.12. No-Load Current 13.2.13. Voltage Regulation 13.2.14. Efficiency View sub-sections 13.3 Classification According to Transformer Cooling Method 13.3.3. Classification According to Transformer Insulating Medium 13.3.4. Classification According to Transformer Core Construction View sub-sections 13.4 Y-? Connection 13.4.3 Z-Connection View sub-sections 13.5 Regulator Technical Characteristics 13.5.3. Regulator Control Functions 13.5.4. Bypassing Voltage Regulators 13.5.5. Three-Phase Voltage Regulators 13.5.6. Voltage Regulator Developments View sub-sections 13.6 Applications of Load Tap Changers 13.6.3. Phase-Shifting Transformers View sub-sections 13.7 Objective Function 13.7.3. Constraints 13.7.4. Solution Methods 13.7.5. Multiple Design Method View sub-sections 13.8 Alternative Fluids of Liquid-Insulated Transformers 13.8.3. Gas-Insulated Transformers 13.8.4. Design of Operating Structures View sub-sections 13.9 Calculation of Temperatures 13.9.3. Design Requirements 13.9.4. Insulation Aging View sub-sections 13.10 Sound Measurement 13.10.3. Sound Level Reduction View sub-sections 13.11 Parallel Operation of Transformers View sub-sections 13.12 Routine Tests 13.12.3. Special Tests View sub-sections 13.13 Protection against Lightning 13.14. TRANSFORMER NAMEPLATE INFORMATION View sub-sections 13.15 Oil Sampling 13.15.3. Testing for Oil Dielectric Strength 13.15.4. Filtering to Increase Dielectric Strength 13.15.5. Drying the Core and Coils 13.

15.6. Time Required for Drying 13.15.7. Insulation Resistance 13.15.8. Insulation Power-Factor Reading 13.15.9. Filling without Vacuum 13.15.10. Filling with Vacuum 13.15.11. Energization 13.15.12. Internal Inspection of In-Service Transformers 13.15.13. Operating without Cooling 13.16. TRANSFORMER CONDITION MONITORING AND ASSESSMENT View sub-sections 13.17 Steam-Turbine Applications 14.1.3. Steam-Turbine Performance 14.1.4. Gas Turbines View sub-sections 14.2 General Principles 14.2.3. Armature Reactions 14.2.4. Commutation 14.2.5. Cooling and Ventilation 14.2.6. Losses and Efficiency 14.2.7. Generator Characteristics 14.2.8. Testing 14.2.9. Special Generators View sub-sections 14.3 Topology 14.3.3. Operation 14.3.4. Two-Reaction Theory or d-q Axis Transformation 14.3.5. Machine Size and Utilization 14.3.6. Electromagnetics 14.3.7. Armature Reaction 14.3.8. Capability Diagram 14.3.9. Saturation Curves and Excitation 14.3.10. Armature Windings 14.3.11. Mechanical Construction 14.3.12. Losses and Efficiency 14.3.13. Testing of AC Generators 14.3.14. Dynamic Models 14.3.15. Special AC Generators 14.4 DC Motor Starting 15.2.3. Basic Speed Control Methods View sub-sections 15.3 Construction and Manufacturing of Induction Motors 15.3.3. Testing of Polyphase Induction Machines 15.3.4. Characteristics of Polyphase Induction Motors 15.3.5. Single-Phase Induction Motors 15.3.6. Induction Motor Online Starting View sub-sections 15.4 Synchronous Motor Online Starting View sub-sections 15.5 Speed Control of Slip Ring Induction Motors View sub-sections 15.6 AC Drives—Three-Phase Inverters View sub-sections 15.7 Scalar Control 15.7.3. Vector Control 15.7.4. Direct Torque Control View sub-sections 15.8 Brushless DC Motors 15.8.3. Switched Reluctance Motors 15.8.4. Synchronous Reluctance Motors 15.9 Websites Phasors and Phasor Diagrams 17.2.3. Complex Power View sub-sections 17.3 Transmission Lines 17.3.3. Transformers 17.3.4. Loads View sub-sections 17.
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4 Converting pu Values from One Base to Another 17.5. SYMMETRICAL COMPONENTS View sub-sections 17.6 Transformers View sub-sections 17.7 Bus Types 17.7.3. Transmission Systems 17.7.4. Distribution Systems 17.7.5. Commercial and Royalty-Free Software View sub-sections 17.8 Symmetrical Faults 17.8.3. Nonsymmetrical Faults 17.8.4. Inversion of the Admittance Matrix by Column 17.9 Forecasting 18.2.3. Reserves 18.2.4. Generation Scheduling and Dispatch 18.2.5. Area Control Error and Control Performance 18.2.6. Frequency Control 18.2.7. Impact of Intermittent Renewable Resources on Frequency Control View sub-sections 18.3 Facility Thermal Limitation 18.3.3. System Stability Limitation 18.3.4. Voltage Limits 18.3.5. Maintain Network Security 18.3.6. Impact of Intermittent Renewable Resources on Transmission Security 18.3.7. References View sub-sections 18.4 EMS Subsystems 18.4.3. Dispatcher Training Simulator 18.4.4. Recent EMS Trends 18.4.5. Next Generation EMS 18.4.6. Proactive Grid Management 18.4.7. Summary 18.4.8. Acknowledgments 18.4.9. Further Reading View sub-sections 18.5 Scheduling Transmission Outage Requests 18.5.3. Processing Transmission Outage Requests 18.6. IMPACT OF REGULATORY ISSUES ON POWER SYSTEM OPERATIONS View sub-sections 18.7 Power System Operation Practices in China 18.7.3. Power System Operation Practices in Australia 18.7.4. Power System Operation Practices in India Primary and Backup Protection 19.1.3. Protection System Functional Characteristics View sub-sections 19.2 Synchrophasors 19.2.3. Time-Synchronized Systems View sub-sections 19.3 Directional Overcurrent Protection 19.3.3. Distance Protection 19.3.4. Directional Comparison Protection 19.3.5. Current Differential Protection 19.3.6. Time-Domain Protection View sub-sections 19.4 Restricted Earth-Fault Protection 19.4.3. Overexcitation Protection 19.4.4. Overcurrent Protection 19.4.5. Sudden-Pressure and Gas-Accumulation Protection View sub-sections 19.

5 Low-Impedance Percentage Differential Protection 19.5.3. Partial Differential Protection 19.5.4. Zone-Interlocked Protection View sub-sections 19.6 Stator Phase Fault Protection 19.6.3. Stator Ground Fault Protection 19.6.4. Rotor Fault Protection 19.6.5. Current Unbalance Protection 19.6.6. Loss-of-Field Protection 19.6.7. Motoring Protection 19.6.8. Other Generator Protection Functions View sub-sections 19.7 Thermal Protection 19.7.3. Short-Circuit Protection 19.7.4. Other Motor Protection Functions View sub-sections 19.8 Underfrequency Load Shedding 19.8.3. Undervoltage Load Shedding 19.8.4. Automatic Generator Shedding 19.9 Free Oscillations 20.1.3. Forced Oscillations 20.1.4. Measurement-Based Analysis Techniques 20.1.5. Mitigation and Control of System Oscillations 20.1.6. Bibliography View sub-sections 20.2 Voltage Stability Assessment and Model-Based Techniques 20.2.3. Measurement-Based Voltage Stability Assessment for a Load Bus 20.2.4. Measurement-Based Voltage Stability Assessment for a Load Area 20.2.5. Bibliography View sub-sections 20.3 Transient Stability Assessment Methods for Realistic Power System Models 20.3.3. Transient Stability Control 20.3.4. Bibliography View sub-sections 20.4 Rotor Angle Stability 20.4.3. Voltage Stability 20.4.4. Frequency Stability 20.4.5. Control Techniques to Emulate Inertia 20.4.6. Bibliography View sub-sections 20.5 Outer Control Loop 20.5.3. Mathematical Modeling of PV-DG System 20.5.4. System Mathematical Model with DG Governor and Induction Machine Load Principles of Market Economics 21.2.3. Electricity Markets 21.2.4. Electricity Market Actors and Participants 21.3. CHARACTERISTICS OF ELECTRICITY MARKETS View sub-sections 21.4 Hedging Energy Price Risk 21.4.3. Locational Marginal Prices 21.4.4. Hedging Transmission Price Risk 21.4.5. Capacity Markets 21.4.6. Market Impacts on ISO System Operations View sub-sections 21.5 Real-Time Balancing Energy Market (Imbalance Market) 21.5.3.

Physical Bilateral Trading Model 21.5.4. Power Exchanges 21.5.5. Hybrid Model (Voluntary Pool with Bilateral Contracts) 21.5.6. Minimalist Model View sub-sections 21.6 Market Dynamics in ERCOT 21.6.3. Comparison of Markets in Different Regions 21.7 General Classes of Power Quality Disturbances 22.2.3. Transient—General 22.2.4. Short-Duration Voltage Variations 22.2.5. Long-Duration Voltage Variations 22.2.6. Sustained Interruption 22.2.7. Voltage Imbalance 22.2.8. Waveform Distortion 22.2.9. Voltage Fluctuation 22.2.10. Power Frequency Variations View sub-sections 22.3 Sources of Sags and Interruptions 22.3.3. Utility System Fault Clearing 22.3.4. Reclosers 22.3.5. Reclosing Sequence 22.3.6. Fuse Saving or Fast Tripping 22.3.7. Fault-Induced Voltage Sags 22.3.8. Motor Starting Sags 22.3.9. Motor Starting Methods 22.3.10. Estimating the Sag Severity during Full Voltage Starting View sub-sections 22.4 Capacitor Switching Transient Overvoltages 22.4.3. Magnification of Capacitor Switching Transient Overvoltages 22.4.4. Options to Limit Magnification 22.4.5. Options to Limit Capacitor Switching Transients—Preinsertion 22.4.6. Options to Limit Capacitor Transient Switching—Synchronous Closing 22.4.7. Lightning 22.4.8. Low-Side Surges 22.4.9. Low-Side Surges—An Example 22.4.10. Ferroresonance 22.4.11. Transformer Energizing View sub-sections 22.5 Harmonic Distortion 22.5.3. Voltage and Current Distortion 22.5.4. Power System Quantities under Nonsinusoidal Conditions 22.5.5. RMS Values of Voltage and Current 22.5.6. Active Power 22.5.7. Reactive Power 22.5.8. Power Factor 22.5.9. Harmonic Phase Sequence 22.5.10. Triplen Harmonics 22.5.11. Triplen Harmonics in Transformers 22.5.12. Total Harmonic Distortion 22.5.13. Total Demand Distortion 22.5.14. System Response Characteristics 22.5.15. System Impedance 22.5.16. Capacitor Impedance 22.5.17. Parallel and Series Resonance 22.5.18. Effects of Resistance and Resistive Load 22.5.19. Harmonic Impacts 22.5.20.

Control of Harmonics View sub-sections 22.6 Electric Power Distribution Reliability Indices 22.6.3. Major Bulk Electric Power Outages 22.6.4.

It provides not only an introduction to finite element methods and the commonality in the various techniques, but explores state-of-the-art methods as well, with a focus on what are deemed to become classical techniques - procedures that will be standard and authoritative for finite element analysis for years to come. This textbook is one of the best for the subject, but it is not easy written, requre real devotion.Great price for the same quality as original. Verisign. Upload Language (EN) Scribd Perks Read for free FAQ and support Sign in Skip carousel Carousel Previous Carousel Next What is Scribd. Books Audiobooks Magazines Podcasts Sheet Music Documents (selected) Snapshots The owner has set this document to private. You will not be able to read it unless the owner changes it to public on their uploads page, or sends you a direct link. Loading Quick navigation Home Books Audiobooks Documents, active.

This facial is designed to improve the texture and tone of your skin by reversing the signs of aging and damage caused by environmental factors. Treatment helps fade dark spots and smooth fine lines and wrinkles. This customized peel combines Glycolic 30 and Salicylic 30 and is designed to reduce fine lines and wrinkles and improve your skin’s overall tone and texture. This treatment contains alpha hydroxy acids and lactic acid to lighten and remove skin discolorations. The facial includes exfoliation, deep cleansing facial massage and masque that will rejuvenate and nourish the skin. Skin appears smoother, softer and refreshed. This treatment includes a gentle exfoliation, a deep cleansing facial massage, and a nourishing masque. Results are immediately visible after the first treatment. This facial improves the appearance of aging skin and uneven skin tone. Included in the facial treatment, it is designed to reduce the appearance of skin patches, freckles, acne and mild rosacea. Microdermabrasion is then used as a non-invasive, exfoliation treatment that resurfaces the skin, effectively removing dead skin cells to reveal smoother, softer and refreshed skin. Results will be immediately visible after the first treatment. Treatment improves blood and lymph circulation, eliminating toxins and improving skin firmness and elasticity. The areas are then wrapped using the Body Applicator, a cloth wrap infused with a powerful botanical-based formula designed to tighten, tone and firm the skin. Virgin coconut oil and scented organic raw sugar cane is used to polish your body and is then followed by a 60-minute massage. Your senses will be awakened and this treatment will leave you refreshed with an all-over health glow. Using a combination of jojoba beads, salicylic acid and lightening agents made of amino acids, this treatment exfoliates the skin while leaving the body radiant and evenly toned.

Virgin coconut oil and scented, organic, raw sugar cane is used to polish your body, followed by the application of body butters. Papers are submitted upon individual invitation or recommendation by the scientific editors and undergo peer reviewThis type ofEditors select a small number of articles recently published in the journal that they believe will be particularlyThe aim is to provide a snapshot of some of the most exciting workPlease note that many of the page functionalities won't work as expected without javascript enabled.Clearly visible are the main fault corridors (Kam-Subum and Buabua-Subum), as well as the main topographical features (plateau, pyroclastic cones, etc.). A stratovolcano eruptive cone at the left, and a volcanic dome overlooking the plateau at the right (August 2006). Thinly stratified surge deposits of Nyos maar with cross-bedding. The slightly reddish color in ( b ) reflects an important weathering of the deposits by water (June 2001 and August 2006). The diagram gives broad detail on the sub components of each vulnerability parameter to be measured. One can identify on this image the main lineaments, fault directions and structures around Lake Nyos. The southern part of the map represents a horst while the Northern part is a graben. The area is criss-crossed by many fractures. This dam is only 22 m across and 40 m long. These potholes focus on erosion and landslides; ( c ) mechanical erosion around the dam west flank of Lake Nyos. (Source: fieldwork in April 2007 and June 2001). Blocks 2 ? 2 ? 0.5 m 3 topple into the lake (Source: fieldworks, April 2007). ( c ) Lateral erosion and progressive retreat of the natural dam of Lake Nyos. (Source: fieldworks, April 2007). It is pumped by the plantations of Upper Penja (PHP) to water the banana, pineapple and papaw plantations, etc. (Source: Tchindjang, August 2007). The Cameroon Volcanic Line (CVL), to which it belongs, constitutes the most active volcanic region in Cameroon.

In 1986, an outgas explosion occurred from beneath the lake and killed 1746 people in several neighbouring villages. The event influenced a radial area of 25 to 40 km wide, particularly in eastern and western direction. This was mainly due to: (1) the rugged nature of the landscape (fault fields), which enabled the heavier gas to follow valleys framed by faults corridors without affecting elevated areas; and (2) the seasonal dominating western wind direction, which channeled the gas along tectonic corridors and valleys. This paper assesses the geological risk and vulnerability in the Lake Nyos before and after several proposal to mitigate future outgas events. Remotely sensed data, together with GIS tools (topographic maps, aerial photographs), helped to determine and assess lineaments and associated risks. A critical grid combining severity and frequency analysis was used to assess the vulnerability of the local population. This requires the local population’s consciousness-raising. The results also show that population around Lake Nyos still remains vulnerable to volcanic hazards and floods. However, the area has been safe since the last degassing and jet grouting through multiple procedures and actions proposed in the National Contingency Plan, and equally by the relief organization plan (DROP or ORSEC plan) for the Menchum Division. Another issue is that the local population is concerned with the idea of returning to the affected areas in order to stay close to their ancestors or the deceased. Therefore, even after jet grouting and degassing, the problem of risk minimization for local residents remains.Lake Nyos, is a crater lake (maar) with a surface area of about 1.5 km?, located in Menchum Division, North-West Administrative Region of Cameroon in West Africa. In the night of 21 August 1986, Lake Nyos released a large volume of carbon dioxide (CO 2 ) that spread across its surroundings and concentrated in low-lying areas due to being heavier than air.