chapter2_circuit_breakers_jan_2014
... Operation of SF6 Circuit Breaker • Under normal operating conditions the contacts are closed . • On occurance of fault contacts are opened. The movable contact moves away from the fixed contact. • The arc is struck between the fixed and moving contacts. • High pressure SF6 gas now flows over the ar ...
... Operation of SF6 Circuit Breaker • Under normal operating conditions the contacts are closed . • On occurance of fault contacts are opened. The movable contact moves away from the fixed contact. • The arc is struck between the fixed and moving contacts. • High pressure SF6 gas now flows over the ar ...
MAX5391L/MAX5391N Evaluation Systems Evaluate: General Description Features
... The Send and Receive Data group box allows the user to send data to the MAX5391L/MAX5391N. The Data bytes to be written edit box indicates data to be sent from the master (microcontroller) to the device (MAX5391L or MAX5391N). Eight-bit hexadecimal numbers should be comma delimited. Press the Send N ...
... The Send and Receive Data group box allows the user to send data to the MAX5391L/MAX5391N. The Data bytes to be written edit box indicates data to be sent from the master (microcontroller) to the device (MAX5391L or MAX5391N). Eight-bit hexadecimal numbers should be comma delimited. Press the Send N ...
Portfolio Template - Schuylkill Technology Center
... advanced on the NOCTI exam which puts my scores against all other students in the United States that are in the same electrical program. I have attached my resume’ and portfolio for your review. I look forward to speaking with you and how I can be a positive fit at your facility. Thank you for takin ...
... advanced on the NOCTI exam which puts my scores against all other students in the United States that are in the same electrical program. I have attached my resume’ and portfolio for your review. I look forward to speaking with you and how I can be a positive fit at your facility. Thank you for takin ...
Stakeholder Comparison Comment Rationale Matrix 2012-09-06 AESO AUTHORITATIVE DOCUMENT PROCESS
... R1.8 Set transmission line relays 8. Set transmission line relays applied on the bulk system-end of transmission lines that serve load remote to the system so they do not operate at or below 115% of the maximum current flow from the system to the load under any system configuration. 9. Set transmiss ...
... R1.8 Set transmission line relays 8. Set transmission line relays applied on the bulk system-end of transmission lines that serve load remote to the system so they do not operate at or below 115% of the maximum current flow from the system to the load under any system configuration. 9. Set transmiss ...
Stakeholder Comparison Comment Rationale Matrix 2011-09-28 AESO AUTHORITATIVE DOCUMENT PROCESS
... windings well below 200 kV, PRC-023-1 excludes generators and all generator step-up and auxiliary transformers. Therefore, no generator owner that is not also a transmission owner and/or a distribution provider will be subject to PRC-023-1. Furthermore, it is clear from item 3.4 in Attachment A that ...
... windings well below 200 kV, PRC-023-1 excludes generators and all generator step-up and auxiliary transformers. Therefore, no generator owner that is not also a transmission owner and/or a distribution provider will be subject to PRC-023-1. Furthermore, it is clear from item 3.4 in Attachment A that ...
AH1810-W-7 Datasheet
... Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. Life support devices or systems are devices or systems which: ...
... Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. Life support devices or systems are devices or systems which: ...
FI25986990
... islanding situation could also happen when fuse at the point „F‟ melts. In this case the inverter based DG3 will feed the local loads, forming a small islanded power system. Formation of islanding can be intentional or unintentional. B). Intentional islanding The use of DG with proper control to sup ...
... islanding situation could also happen when fuse at the point „F‟ melts. In this case the inverter based DG3 will feed the local loads, forming a small islanded power system. Formation of islanding can be intentional or unintentional. B). Intentional islanding The use of DG with proper control to sup ...
POWER SYSTEM FAULTS
... involved, which can basically be considered as fault resistance. In this respect, the faults are categorized as: • solid (bolted) faults which involve negligible fault resistance and • resistive faults. Usually, for inter-phase faults, fault resistances are small and in general do not exceed 0.5 Ω. ...
... involved, which can basically be considered as fault resistance. In this respect, the faults are categorized as: • solid (bolted) faults which involve negligible fault resistance and • resistive faults. Usually, for inter-phase faults, fault resistances are small and in general do not exceed 0.5 Ω. ...
Stakeholder Comparison Comment Rationale Matrix 2012-09-06 AESO AUTHORITATIVE DOCUMENT PROCESS
... R1.8 Set transmission line relays 8. Set transmission line relays applied on the bulk system-end of transmission lines that serve load remote to the system so they do not operate at or below 115% of the maximum current flow from the system to the load under any system configuration. 9. Set transmiss ...
... R1.8 Set transmission line relays 8. Set transmission line relays applied on the bulk system-end of transmission lines that serve load remote to the system so they do not operate at or below 115% of the maximum current flow from the system to the load under any system configuration. 9. Set transmiss ...
AN-6047 FIN324C Reset and Standby Summary www.fairchildsemi.com
... Although very similar, the reset and standby pins function differently. Unlike the standby pin, both the serializer and deserializer have the reset pin. When reset is in LOW state, the device is in a power-down mode. The power-down mode consumes less than 10µA of power. When reset is asserted HIGH, ...
... Although very similar, the reset and standby pins function differently. Unlike the standby pin, both the serializer and deserializer have the reset pin. When reset is in LOW state, the device is in a power-down mode. The power-down mode consumes less than 10µA of power. When reset is asserted HIGH, ...
Scope and Sequence - Construction Electricity
... Calculate the peak and effective voltage or current values for an AC waveform. Calculate the phase relationship between two AC waveforms. Describe the voltage and current phase relationship in a resistive AC circuit. Describe the voltage and current transients that occur in an inductive circuit. Def ...
... Calculate the peak and effective voltage or current values for an AC waveform. Calculate the phase relationship between two AC waveforms. Describe the voltage and current phase relationship in a resistive AC circuit. Describe the voltage and current transients that occur in an inductive circuit. Def ...
the original construction manual in Word format.
... i. Once the components are installed carefully inspect all joints making sure that all components are installed in the correct holes, observing polarity when necessary, and that all solder joints are good. Carefully check for solder bridges that can easily create a short circuit between traces. j. W ...
... i. Once the components are installed carefully inspect all joints making sure that all components are installed in the correct holes, observing polarity when necessary, and that all solder joints are good. Carefully check for solder bridges that can easily create a short circuit between traces. j. W ...
Determination and Application of Practical Relaying
... When the study to establish the original loadability parameters was performed, it was based on the 4-hour facility rating. The intent of the 150% factor applied to the Facility Rating in the loadability requirement was to approximate the 15-minute rating of the transmission line and add some additio ...
... When the study to establish the original loadability parameters was performed, it was based on the 4-hour facility rating. The intent of the 150% factor applied to the Facility Rating in the loadability requirement was to approximate the 15-minute rating of the transmission line and add some additio ...
quick guide q and a A4
... return to Status Normal. Q11. How do I check background level at the control panel? A11. Turn key to ON Press 0 Enter Fire System Opts Menu Enter Engineers Config Menu Enter 221100 Press Yes Enter RSSI Interference Menu Check Background Level a number ranging from 0-255 will be displayed. P ...
... return to Status Normal. Q11. How do I check background level at the control panel? A11. Turn key to ON Press 0 Enter Fire System Opts Menu Enter Engineers Config Menu Enter 221100 Press Yes Enter RSSI Interference Menu Check Background Level a number ranging from 0-255 will be displayed. P ...
Notes
... Critical: state or output depends on order of arrival at decision point Noncritical: output value does not depend on order of arrival of inputs Hazard: (also called a decoding spike or a glitch): present in a circuit if the circuit has the possibility of giving an incorrect output 2 types of hazards ...
... Critical: state or output depends on order of arrival at decision point Noncritical: output value does not depend on order of arrival of inputs Hazard: (also called a decoding spike or a glitch): present in a circuit if the circuit has the possibility of giving an incorrect output 2 types of hazards ...
Stakeholder Comparison Comment Rationale Matrix 2012-09-06 AESO AUTHORITATIVE DOCUMENT PROCESS
... R1.8 Set transmission line relays 8. Set transmission line relays applied on the bulk system-end of transmission lines that serve load remote to the system so they do not operate at or below 115% of the maximum current flow from the system to the load under any system configuration. 9. Set transmiss ...
... R1.8 Set transmission line relays 8. Set transmission line relays applied on the bulk system-end of transmission lines that serve load remote to the system so they do not operate at or below 115% of the maximum current flow from the system to the load under any system configuration. 9. Set transmiss ...
Stakeholder Comparison Comment Rationale Matrix 2011-09-28 AESO AUTHORITATIVE DOCUMENT PROCESS
... R1 Each legal owner of a transmission facility, legal owner of a generating unit and legal owner of an aggregated generating facility must use one of the criteria set out in requirements R1.1 through R1.13, inclusive, for each specific circuit terminal to prevent its phase protective relay settings ...
... R1 Each legal owner of a transmission facility, legal owner of a generating unit and legal owner of an aggregated generating facility must use one of the criteria set out in requirements R1.1 through R1.13, inclusive, for each specific circuit terminal to prevent its phase protective relay settings ...
8. Molded Case Circuit Breakers
... that can be applied across the terminals, the type of distribution system and how the breaker is being applied in the system. The voltage system of 480Y/277V is the most common found in commercial and institutional buildings. It has a solidly grounded neutral. This system is also very prevalent in i ...
... that can be applied across the terminals, the type of distribution system and how the breaker is being applied in the system. The voltage system of 480Y/277V is the most common found in commercial and institutional buildings. It has a solidly grounded neutral. This system is also very prevalent in i ...
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.