Behavioral fault models
... following functional fault model for it. ◦ A 0 and a 1 cannot be selected on each input line. ◦ When an input is being selected, another input gets selected instead of or in addition to the correct input. Another type of functional fault model assumes that the truth table of the functional block can ...
... following functional fault model for it. ◦ A 0 and a 1 cannot be selected on each input line. ◦ When an input is being selected, another input gets selected instead of or in addition to the correct input. Another type of functional fault model assumes that the truth table of the functional block can ...
Optically Isolated Triac Driver
... the 220v into the low voltage part of the circuit. This would, of course, be disastrous for the low voltage part of the circuit but it could also be very dangerous for the user. One simple way of isolating the two parts of the circuit is shown below. If a high intensity red led is used in the circui ...
... the 220v into the low voltage part of the circuit. This would, of course, be disastrous for the low voltage part of the circuit but it could also be very dangerous for the user. One simple way of isolating the two parts of the circuit is shown below. If a high intensity red led is used in the circui ...
Example: This circuit is equivalent to a single capacitor having
... capacitance C. The voltage source voltage is given by v ( t ) = 4 cos ( 3 t ) V Find the current i(t) when C = 1 F. ...
... capacitance C. The voltage source voltage is given by v ( t ) = 4 cos ( 3 t ) V Find the current i(t) when C = 1 F. ...
Alberta Reliability Standard System Performance Following Loss of a Single BES Element
... (a) The scope of the planning assessment identifies where area studies have been conducted in the past year. It also identifies area studies that have been conducted in previous years and are still valid. Where area studies have not been conducted, a plan and schedule to conduct one is included in t ...
... (a) The scope of the planning assessment identifies where area studies have been conducted in the past year. It also identifies area studies that have been conducted in previous years and are still valid. Where area studies have not been conducted, a plan and schedule to conduct one is included in t ...
TESTING SYSTEMS FOR ELECTRIC MOTORS
... MotorTEST is a hardware-software system used to measure electric and dynamic features of single phase, three phase and dc electric motors, compliant with IEC 60034-2-1 and IEEE 112 / 113. Dynamic Braking Systems Dynamic Braking Systems use an electric motor controlled by a frequency converter as a b ...
... MotorTEST is a hardware-software system used to measure electric and dynamic features of single phase, three phase and dc electric motors, compliant with IEC 60034-2-1 and IEEE 112 / 113. Dynamic Braking Systems Dynamic Braking Systems use an electric motor controlled by a frequency converter as a b ...
No Slide Title
... • May or may not appear as a stuck-at fault. • May also cause permanent path between Vdd and Gnd giving intermediate voltage. • May also lead to combinational circuit to behave like a sequential one. • Will restrict ourselves to stuck-at model. ...
... • May or may not appear as a stuck-at fault. • May also cause permanent path between Vdd and Gnd giving intermediate voltage. • May also lead to combinational circuit to behave like a sequential one. • Will restrict ourselves to stuck-at model. ...
GridAdvisor™ Series II Smart Sensor Increases Outage Management and Capacitor Bank Efficiencies While Providing Enhanced Smart Grid Data 9/17/13 Read more
... improves overall efficiencies in distribution systems by identifying directional fault targeting, detecting capacitor bank fuse failure and providing real time line monitoring at nearly any location via the Distributed Network Protocol 3 (DNP3). ...
... improves overall efficiencies in distribution systems by identifying directional fault targeting, detecting capacitor bank fuse failure and providing real time line monitoring at nearly any location via the Distributed Network Protocol 3 (DNP3). ...
Troubleshooting tips on 2200
... Disconnect Q9070. Connect the external P/S across C925. Momentary raise it to about 25-30 V to initiate the startup circuit. Reduce and leave it at about 14 V. With reference to pin 13 (- of your P/S) you should now have 14 V at pins 8 and 11, 10-14 V at pin 12 and 5 V at pin 14. Still referenced to ...
... Disconnect Q9070. Connect the external P/S across C925. Momentary raise it to about 25-30 V to initiate the startup circuit. Reduce and leave it at about 14 V. With reference to pin 13 (- of your P/S) you should now have 14 V at pins 8 and 11, 10-14 V at pin 12 and 5 V at pin 14. Still referenced to ...
Rapid Electronics Ltd DATA SHEET MK484 RADIO IC
... Example Circuit This circuit provides a complete RF amplifier, Detection and AGC circuit, which requires only a few external components to give a high quality AM Tuner. Good audio quality can be achieved, and current consumption is extremely low. No setting up or alignment is required and the circui ...
... Example Circuit This circuit provides a complete RF amplifier, Detection and AGC circuit, which requires only a few external components to give a high quality AM Tuner. Good audio quality can be achieved, and current consumption is extremely low. No setting up or alignment is required and the circui ...
S.T.A.R. Faulted Circuit Indicators
... Circuit Indicators (FCI), the BLOC feature will shut the LED display off after 4 hours, but retains a record of fault occurrence in memory, which can be interrogated by use of the manual reset/testing tool. The event will remain in memory until the unit is either manually reset or until normal syste ...
... Circuit Indicators (FCI), the BLOC feature will shut the LED display off after 4 hours, but retains a record of fault occurrence in memory, which can be interrogated by use of the manual reset/testing tool. The event will remain in memory until the unit is either manually reset or until normal syste ...
Circuit Breakers - Short Time Delay (STD)
... is to provide protection to circuit components and equipment. A short-time delay (STD) setting on a circuit breaker can negate the function of protecting the circuit components. A low voltage power circuit breaker with a short-time delay and without instantaneous trip, permits a fault to flow for th ...
... is to provide protection to circuit components and equipment. A short-time delay (STD) setting on a circuit breaker can negate the function of protecting the circuit components. A low voltage power circuit breaker with a short-time delay and without instantaneous trip, permits a fault to flow for th ...
OWTS M 60
... For the PD diagnosis, the test object is charged to the preselected peak value by a HV source within a couple of seconds and afterwards shorted with an electronic switch via a resonance coil. Thus a sinusoidal oscillating AC voltage with low damping is created (DAC). The frequency is fixed in a rang ...
... For the PD diagnosis, the test object is charged to the preselected peak value by a HV source within a couple of seconds and afterwards shorted with an electronic switch via a resonance coil. Thus a sinusoidal oscillating AC voltage with low damping is created (DAC). The frequency is fixed in a rang ...
Reigh Walling Commen.. - pes-psrc
... be provided. All currents shall be provided as fundamental frequency phasor current values in r.m.s. amperes (magnitude and angle with respect to pre-fault A phase voltage) in the indicated time frames. Phasor values for all three phase currents and all three phase to neutral voltages at the high vo ...
... be provided. All currents shall be provided as fundamental frequency phasor current values in r.m.s. amperes (magnitude and angle with respect to pre-fault A phase voltage) in the indicated time frames. Phasor values for all three phase currents and all three phase to neutral voltages at the high vo ...
ECE 310 - University of Illinois at Urbana–Champaign
... The most common type of fault on a three phase system by far is the single line-to-ground (SLG), followed by the line-to-line faults (LL), double lineto-ground (DLG) faults, and balanced three phase faults ...
... The most common type of fault on a three phase system by far is the single line-to-ground (SLG), followed by the line-to-line faults (LL), double lineto-ground (DLG) faults, and balanced three phase faults ...
ECE4762007_Lect19
... The most common type of fault on a three phase system by far is the single line-to-ground (SLG), followed by the line-to-line faults (LL), double lineto-ground (DLG) faults, and balanced three phase faults ...
... The most common type of fault on a three phase system by far is the single line-to-ground (SLG), followed by the line-to-line faults (LL), double lineto-ground (DLG) faults, and balanced three phase faults ...
EFFECTS OF CIRCUIT SIMULATION ON ACHIEVEMENT
... Network (MTN) and Ericson revealed that most of their jobs like networking and signal testing are simulated before putting into practice. As a result of this, these employers prefer fresh recruits with requisite knowledge in computer application in various aspects of the profession. ...
... Network (MTN) and Ericson revealed that most of their jobs like networking and signal testing are simulated before putting into practice. As a result of this, these employers prefer fresh recruits with requisite knowledge in computer application in various aspects of the profession. ...
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.