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Practical Power System Protection
Leslie Hewitson, Mark Brown, and Ramesh Balakrishnan
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| Excerpt - page 3: "... protective system, is batteries that are used to ensure uninterrupted power to relays and breaker coils. The above items are extensively used in ..." | | See more references to Relays, Power in this book. |
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Protection of Electricity Distribution Networks, 2nd Edition (Power and Energy)
Juan Gers
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| Excerpt - page 42: "... enable and disable certain functions. (iv) Communication In numerical relaying, relay and power system information can be retrieved from a remote location using ..." | | See more references to Relays, Power in this book. |
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Protective Relaying for Power Generation Systems
Donald Reimert
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| Excerpt - page 75: "... high-current buses, AIEE Trans- actions, 50, 1656-1662, 1951. 3. IEEE Power System Relay Committee Report, Sine-Wave Distortions in Power Systems and the Impact ..." | | See more references to Relays, Power in this book. |
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Microprocessor-Relays for Power System Protection (IEEE Press Series on Power Engineering)
Mohindar S. Sachdev and Tarlochan S. Sidhu
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Bifurcations and Chaos in Piecewise-Smooth Dynamical Systems: Applications to Power Converters, Relay and Pulse-Width Modulated Control Systems, and Human ... Series on Nonlinear Science, Series a)
Zhanybai T. Zhusubaliyev and Erik Mosekilde
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| Excerpt - page 113: "... sustained by an external periodic action. The advantages of using relay control systems rather than systems ... engineering due to the large power gains of the relay element and because of their simplicity. ..." | | See more references to Relays, Power in this book. |
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Power System Protection (IEEE Press Series on Power Engineering)
Paul M. Anderson
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| Excerpt - page 64: "... with electromagnets for both current and voltage. This makes the relay perform as a power measuring device, and hence makes it directional. If the current ..." | | See more references to Relays, Power in this book. |
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Protective Relaying (Power Engineering, 5)
J. Lewis Blackburn
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| Excerpt - page 7: "... (Courtesy of Georgia Power Company.) FIGURE 1.3 Typical solid-state microprocessor relays for power system protection : (a-c) Rack-type mounting: (a) three-phase and ground ..." | | See more references to Relays, Power in this book. |
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Protection Devices and Systems for High-Voltage Applications (Power Engineering, 20)
Vladimir Gurevich
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| Excerpt - page 69: "... 3 - soft-start contactor on IGBT transistors; 4 - electromagnetic power relay; 5 - RG; 6 - HV power supply. The "Barracuda" ..." | | See more references to Relays, Power in this book. |
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Heavy-duty main power relay: high-capacity relay with integral transient voltage suppression system works from 350 mA to 200A.: An article from: Designfax
Stephanie Gooch
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Power Generation Handbook : Selection, Applications, Operation, Maintenance
Philip Kiameh
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| Excerpt - page 77: "... TRIPS FRONT VALVE OVERSPE ED TRIP TRIP TURBINE 0, DRAIN RELAY FLUID F LOW FORWARD TRIP SOLENOID PLUNGER TRIP 11 ENOID SO S PRESSURE SWITCHES POWER RELAYS PROTECTION FLUID L VALVE RELAY 0 0 FRONT MANUAL ..." | | See more references to Relays, Power in this book. |
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Electrical Installations Handbook: Power Supply and Distribution, Protective Measures, Electromagnetic Compatibility, Electrical Installation Equipment and Systems, Application Examples for Electrical Installation Systems, Building Management, 3rd Edition
Günter G. Seip and Gunter G. Seip
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| Excerpt - page 37: "... maximum short-circuit current load if parallel operation with the general power supply is intended. The following ... faults, comprising: - vector snap-acting relay - overvoltage/undervoltage relay - overfrequency/underfrequency relay In large generating sets, ..." | | See more references to Relays, Power in this book. |
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Electric Power Distribution Reliability (Power Engineering, 14)
Richard E. Brown
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| Excerpt - page 25: "... in parallel to energize the secondary bus. To prevent reverse power flow through the transformers, special network protectors with sensitive reverse power relays are used. Spot networks allow multiple component failures to occur ..." | | See more references to Relays, Power in this book. |
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Power Distribution Engineering (Electrical and Computer Engineering)
James J. Burke
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| Excerpt - page 7: "... automatic disconnection of any unit is obtained by sensitive reverse power relays in the protector. Maintenance switching of primary feeders can be ..." | | See more references to Relays, Power in this book. |
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Electrical Transients in Power Systems
Allan Greenwood
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| Excerpt - page 45: "... Second, they can induce undesirable transients in neighboring circuits; low power relay and control circuits being particularly vulnerable. This problem is discussed ..." | | See more references to Relays, Power in this book. |
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Electric Power Distribution (McGraw-Hill Professional Engineering)
A. S. Pabla
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| Excerpt - page 8: "... disconnection of any unit is obtained by sensitive reverse (directional) power relays in the protection unit (see Fig. 1.3e). If one feeder ..." | | See more references to Relays, Power in this book. |
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Pathways of Power: Building an Anthropology of the Modern World
Eric R. Wolf
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| Excerpt - page 142: "... determined by other social factors: tech nology, economy, residence, political power. The family is but one relay in the circuit within which symbols are generated in complex ..." | | See more references to Relays, Power in this book. |
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Computer Aided Power System Analysis (Power Engineering, 15)
Natarajan
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| Excerpt - page 7: "... analysis, graphical representation and the approach for effective report preparation. Relay Coordination Studies (Chapter 16) - ... and relays used in the power system. The short circuit results provide the minimum and maximum ..." | | See more references to Relays, Power in this book. |
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Electric Power Transformer Engineering
James H. Harlow
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| Excerpt - page 32: "... tank can provide further separation from the atmosphere. 2.1.6.2.1. "Buchholz" Relay On power transformers using a conservator liquid-preservation system, a "Buchholz" relay can ..." | | See more references to Relays, Power in this book. |
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Practical Power Distribution for Industry
Jan De Kock and Cobus Strauss
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| Excerpt - page 28: "... ree-phase voltages sidual voltage equency tive power active power >Power factor ergy rmonics ..." | | See more references to Relays, Power in this book. |
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Power System Stability and Control
Prabha Kundur
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| Excerpt - page 18: "... on a critical element followed by its isolation by protective relays will cause variations in power transfers, machine rotor speeds, and bus voltages; the voltage variations ..." | | See more references to Relays, Power in this book. |
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Protection of Industrial Power Systems, Second Edition
T. DAVIES
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| Excerpt - page 39: "... be specified by software which widens the scope of the relay and allows a single relay ... made possible by the low power requirement of the relay, and a choice of five different ..." | | See more references to Relays, Power in this book. |
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IEEE Guide for Differential and Polarizing Relay Circuit Testing
Power Engineering Society
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Power Electronics Design : A Practitioner's Guide
Keith H. Sueker
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| Excerpt - page 59: "... same end if possible, and the same is true for power leads. The operating coils on contactors and power relays will generate transient voltages when they are deenergized. R/C snubbers ..." | | See more references to Relays, Power in this book. |
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Electrical Power Equipment Maintenance and Testing (Power Engineering, 4)
Paul Gill
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| Excerpt - page 13: "... and usually encompass all the short-circuit values available in the power system, relays, and trip device settings. Normally, this study is performed during ..." | | See more references to Relays, Power in this book. |
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Electric Power Systems, 4th Edition
B. M. Weedy and B. J. Cory
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| Excerpt - page 48: "... system by the L.V. system, and in some instances reverse power relay protection is necessary. In new developments it is essential to ..." | | See more references to Relays, Power in this book. |
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High-Power Audio Amplifier Construction Manual
G. Randy Slone
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| Excerpt - page 34: "... some amplifier designs, adequate fusing may be provided in the power supply rails, thus eliminating the ... majority of audio power amplifiers, relays are the best and least expensive way of protecting the ..." | | See more references to Relays, Power in this book. |
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Distributed Switchgear (IEE Power & Energy Series)
Stan Stewart
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| Excerpt - page 164: "... the facilities that can be provided. A problem facing the relay designer was the same one as was previously solved by the switchgear designer, that was the lack of a local low-voltage source to power the relay. One solution, which is currently employed by some ..." | | See more references to Relays, Power in this book. |
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Power Electronics Design Handbook: Low-Power Components and Applications (EDN Series for Design Engineers)
Nihal Kularatna
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| Excerpt - page 7: "... overvoltage regulation and protection are provided with the amplifier. These power amplifiers can be used for ... devices can be circuit breakers, relays, and power controllers all in one package. They can operate ..." | | See more references to Relays, Power in this book. |
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Plant Engineering's Fluid Power Handbook, Volume 2: System Applications and Components (Fluid Power Handbook Plant Engineering)
Anton H. Hehn
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| Excerpt - page 163: "... to operate the machine. a ON-OFF electric control of fluid power is as old as modern fluid power technology. Solenoids and relays have been used as fluid-power control components for years. Addition ..." | | See more references to Relays, Power in this book. |
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Power System Grounding and Transients (Electrical and Computer Engineering)
Meliopoulos
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| Excerpt - page 33: "... Often, communication lines are suspended on the same towers as power lines. As an example, Fig. ... for communication between two protective relays at the ends of a power line. Another typical example ..." | | See more references to Relays, Power in this book. |
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Power System Quality Assessment
Jos Arrillaga, Neville R. Watson, and S. Chen
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| Excerpt - page 36: "... the standard. These devices comprise motors and generators, trans- formers, power cables, capacitors, electronic equipment, metering equipment, switch- gear, relays and static power converters. Interference to the telephone networks as ..." | | See more references to Relays, Power in this book. |
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High Performance Audio Power Amplifiers
Ben Duncan
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| Excerpt - page 70: "... larger junctions may be used to enhance protection. 4. Clamping relays. Placed after the series input current limiting resistors, inputs are shorted to Ov until power is up on all rails. With suitably rapid action and ..." | | See more references to Relays, Power in this book. |
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Power System Harmonics
Jos Arrillaga and Neville R. Watson
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| Excerpt - page 10: "... the standard. These devices comprise motors and generators, transformers , power cables, capacitors, electronic equipment, metering equipment, switchgear, relays and static power converters. Interference to the telephone networks as ..." | | See more references to Relays, Power in this book. |
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Electric Relays (Electrical and Computer Engineering)
Vladimir Gurevich
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| Excerpt - page 17: "... technological gap, and realizing the importance of develop- ment of relay devices for modern communication and ... to produce relays for the power-generation industry and the electric drive industry. In a few years ..." | | See more references to Relays, Power in this book. |
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Transient Stability of Power Systems: Theory and Practice
M. Pavella and P. G. Murthy
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| Excerpt - page 50: "... static VAR compensators are finding a place more frequently in power networks for various reasons, their modelling features are included subsequently. Representation of protective relays during power swings, and a short description of often favoured ..." | | See more references to Relays, Power in this book. |
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Industrial and Commercial Power System Handbook
F. S. Prabhakara, Robert L. Smith, and Ray P. Stratford
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| Excerpt - page 38: "... Switching surges EMTP/TNA Milliseconds Transients Milliseconds Relaying Short-circuit Cycles Protection Relay coordination Power swing Stability Seconds Motor starting Power flow; stability Minutes Wave ..." | | See more references to Relays, Power in this book. |
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