William States Lee III Nuclear Station FSAR, Chapter 8 CHAPTER 8 ELECTRIC POWER
... The 230 kV switchyard is connected to four transmission lines and the 525 kV switchyard is connected to two transmission lines. No single transmission line to either switchyard is designated as the preferred circuit, but each line has sufficient capacity and capability from the transmission network ...
... The 230 kV switchyard is connected to four transmission lines and the 525 kV switchyard is connected to two transmission lines. No single transmission line to either switchyard is designated as the preferred circuit, but each line has sufficient capacity and capability from the transmission network ...
Impact of Pass-Transistor Logic (PTL) on Power
... in the CMOS design. Due to the smaller size of the transistors in PTL implementation. • The lengths of the transistors should be as small as possible, because increased lengths result in more IRdrop across the transistor. • The widths of transistors also should be small. It’s because the improvement ...
... in the CMOS design. Due to the smaller size of the transistors in PTL implementation. • The lengths of the transistors should be as small as possible, because increased lengths result in more IRdrop across the transistor. • The widths of transistors also should be small. It’s because the improvement ...
G6-Circuit-Components
... A. NAND Gate B. Microprocessor C. Frequency Counter D. Linear voltage regulator ...
... A. NAND Gate B. Microprocessor C. Frequency Counter D. Linear voltage regulator ...
Technical Statement - The Lighting Industry Association
... control gear (ECG) for LEDs The market trend towards LED lighting has led to situations where mains circuit breakers maybe nuisance tripped when connected to similar loads to that of fluorescent circuits due to the higher inrush current that is drawn by some devices. Inrush current refers to the bri ...
... control gear (ECG) for LEDs The market trend towards LED lighting has led to situations where mains circuit breakers maybe nuisance tripped when connected to similar loads to that of fluorescent circuits due to the higher inrush current that is drawn by some devices. Inrush current refers to the bri ...
EE 423 – Power System Analysis 2 Power System Fault Analysis
... damage or human error. These faults, may either be three phase in nature involving all three phases in a symmetrical manner, or may be asymmetrical where usually only one or two phases may be involved. Faults may also be caused by either short-circuits to earth or between live conductors, or may be ...
... damage or human error. These faults, may either be three phase in nature involving all three phases in a symmetrical manner, or may be asymmetrical where usually only one or two phases may be involved. Faults may also be caused by either short-circuits to earth or between live conductors, or may be ...
- Emicro Technologies
... This paper presents a new topology of an isolated multilevel inverter that can be used for high voltage and high power applications such as integrating battery storage systems and alternative energy sources to power grid. With reduced number of components the proposed cascaded multilevel inverter re ...
... This paper presents a new topology of an isolated multilevel inverter that can be used for high voltage and high power applications such as integrating battery storage systems and alternative energy sources to power grid. With reduced number of components the proposed cascaded multilevel inverter re ...
Reliability and Failure Analysis of Electronic Components
... • 5 common stresses are used to accelerate device failure – temperature – voltage – current – temperature cycling to accelerate mechanical failure of chips and assembly package • In such studies, different failure mechanisms may be accelerated by different level of stress even for the same type of ...
... • 5 common stresses are used to accelerate device failure – temperature – voltage – current – temperature cycling to accelerate mechanical failure of chips and assembly package • In such studies, different failure mechanisms may be accelerated by different level of stress even for the same type of ...
Selection Guide
... “open” the circuit to provide protection from the overcurrent or elevated ambient temperature condition. Once the fault is removed or the ambient temperature cools, the PTC will automatically “reset” and conduct safe current levels again, allowing current to flow through the circuit. PTCs are common ...
... “open” the circuit to provide protection from the overcurrent or elevated ambient temperature condition. Once the fault is removed or the ambient temperature cools, the PTC will automatically “reset” and conduct safe current levels again, allowing current to flow through the circuit. PTCs are common ...
Reliability Fundamentals of System Protection
... Protective relays do not generally demonstrate their performance until a fault or other power system problem requires that they operate to protect power system elements, or even the entire Bulk Electric System. Lacking faults or system problems, the protection systems may not operate for extended pe ...
... Protective relays do not generally demonstrate their performance until a fault or other power system problem requires that they operate to protect power system elements, or even the entire Bulk Electric System. Lacking faults or system problems, the protection systems may not operate for extended pe ...
NI 9758 Port Fuel Injector Driver User Manual
... The NI 9758 has two phases of current control. The maximum phase current is 4 A. Control can be set to transition from the first to the second phase after a set time or immediately when the first current level is reached. To drive low impedance injectors, set the first phase peak current to 4 A and ...
... The NI 9758 has two phases of current control. The maximum phase current is 4 A. Control can be set to transition from the first to the second phase after a set time or immediately when the first current level is reached. To drive low impedance injectors, set the first phase peak current to 4 A and ...
Electronic devices and circuits
... continuous-time and discrete-time [[Fourier Transform]], z-transform. [[Sampling theorem]]s. [[LTI system theory|Linear Time-Invariant (LTI) Systems]]: definitions and properties; causality, stability, impulse response, convolution, poles and zeros frequency response, group delay, phase delay. Signa ...
... continuous-time and discrete-time [[Fourier Transform]], z-transform. [[Sampling theorem]]s. [[LTI system theory|Linear Time-Invariant (LTI) Systems]]: definitions and properties; causality, stability, impulse response, convolution, poles and zeros frequency response, group delay, phase delay. Signa ...
... • Predict Catastrophic Failures: Maximize revenue from the generator by reducing risk of catastrophic asset failures and schedule maintenance activities to minimize outage cost. • Reduce Risk of Damage during Outage: During disassembly, outage and assembly there is always a risk that inadvertent d ...
Introduction to Electronics
... region marked “DCV” for DC circuits or “ACV” for AC circuits. Choose a setting that is the lowest possible and still above your expected potential difference. Place the leads at opposite ends of a circuit element or combination of elements and observe the potential difference or potential difference ...
... region marked “DCV” for DC circuits or “ACV” for AC circuits. Choose a setting that is the lowest possible and still above your expected potential difference. Place the leads at opposite ends of a circuit element or combination of elements and observe the potential difference or potential difference ...
Time-Current Curves (How to Read)
... 1. Overload Region: The opening of a molded case circuit breaker in the overload region is generally accomplished by a thermal element, while a magnetic coil is generally used on power breakers. Electronic sensing breakers will utilize CTs. As can be seen, the overload region has a wide tolerance ba ...
... 1. Overload Region: The opening of a molded case circuit breaker in the overload region is generally accomplished by a thermal element, while a magnetic coil is generally used on power breakers. Electronic sensing breakers will utilize CTs. As can be seen, the overload region has a wide tolerance ba ...
File - Shaw STEM Lab
... How to avoid a short in your circuit… Short Circuit – a “short” in a circuit occurs when an alternate path (with less resistance) to the intended path is introduced. A path with no resistance allows too much current to flow. If the location of the short in a circuit only partially reduces resistance ...
... How to avoid a short in your circuit… Short Circuit – a “short” in a circuit occurs when an alternate path (with less resistance) to the intended path is introduced. A path with no resistance allows too much current to flow. If the location of the short in a circuit only partially reduces resistance ...
Rajasthan Technical University, Kota COURSE - FILE
... 1. A transmission line of inductance 0.1 H and resistance 5 short circuited at t = 0, at the far end of a transmission line and is supplied by an ac t+150πsource of voltage v = 100 sin (100 ). Write the expression for the short circuit current, i(t). Find the approximate value of the first current m ...
... 1. A transmission line of inductance 0.1 H and resistance 5 short circuited at t = 0, at the far end of a transmission line and is supplied by an ac t+150πsource of voltage v = 100 sin (100 ). Write the expression for the short circuit current, i(t). Find the approximate value of the first current m ...
applications of gps in power engineering
... • The locations of PMUs according to state estimation improvement do not need to be similar to those locations according to observability depth. • The system parameters, system layout and power flow affect the PMUs' positioning for optimal state estimation. • For each system there is a certain numbe ...
... • The locations of PMUs according to state estimation improvement do not need to be similar to those locations according to observability depth. • The system parameters, system layout and power flow affect the PMUs' positioning for optimal state estimation. • For each system there is a certain numbe ...
Nodal analysis
... NOTE: In lecture 11 we will show that the circuit shown on the left is equivalent to a 200K resistor in series with 2V. ...
... NOTE: In lecture 11 we will show that the circuit shown on the left is equivalent to a 200K resistor in series with 2V. ...
ATPDraw- Graphical Preprocessor to ATP. Windows version. H. K.
... connection is drawn between the nodes. To draw a connection between nodes, click on a node with the left mouse button. A line is drawn between that node and the mouse cursor. Click the left mouse button again to place the connection (clicking the right button cancels the operation). The gridsnap fac ...
... connection is drawn between the nodes. To draw a connection between nodes, click on a node with the left mouse button. A line is drawn between that node and the mouse cursor. Click the left mouse button again to place the connection (clicking the right button cancels the operation). The gridsnap fac ...
Fault tolerance
Fault tolerance is the property that enables a system to continue operating properly in the event of the failure of (or one or more faults within) some of its components. If its operating quality decreases at all, the decrease is proportional to the severity of the failure, as compared to a naively designed system in which even a small failure can cause total breakdown. Fault tolerance is particularly sought after in high-availability or life-critical systems.A fault-tolerant design enables a system to continue its intended operation, possibly at a reduced level, rather than failing completely, when some part of the system fails. The term is most commonly used to describe computer systems designed to continue more or less fully operational with, perhaps, a reduction in throughput or an increase in response time in the event of some partial failure. That is, the system as a whole is not stopped due to problems either in the hardware or the software. An example in another field is a motor vehicle designed so it will continue to be drivable if one of the tires is punctured. A structure is able to retain its integrity in the presence of damage due to causes such as fatigue, corrosion, manufacturing flaws, or impact.Within the scope of an individual system, fault tolerance can be achieved by anticipating exceptional conditions and building the system to cope with them, and, in general, aiming for self-stabilization so that the system converges towards an error-free state. However, if the consequences of a system failure are catastrophic, or the cost of making it sufficiently reliable is very high, a better solution may be to use some form of duplication. In any case, if the consequence of a system failure is so catastrophic, the system must be able to use reversion to fall back to a safe mode. This is similar to roll-back recovery but can be a human action if humans are present in the loop.