Report on Frequent Tripping of Pragati GT (FEB-2010)
... availed on 220 kV Pragati-Maharani Bagh ckt. As soon as the breaker was made off, the total load of 220 kV Pragati- MB ckt got transferred onto 220 kV Pragati-SV ckt. with a total load of 160 MW, the R-ph jumper of 220 kV Pragati-SV ckt got snapped off and remained suspended in air without touching ...
... availed on 220 kV Pragati-Maharani Bagh ckt. As soon as the breaker was made off, the total load of 220 kV Pragati- MB ckt got transferred onto 220 kV Pragati-SV ckt. with a total load of 160 MW, the R-ph jumper of 220 kV Pragati-SV ckt got snapped off and remained suspended in air without touching ...
3.1. The dc transformer model
... 1. The dc transformer model represents the primary functions of any dc-dc converter: transformation of dc voltage and current levels, ideally with 100% efficiency, and control of the conversion ratio M via the duty cycle D. This model can be easily manipulated and solved using familiar techniques of ...
... 1. The dc transformer model represents the primary functions of any dc-dc converter: transformation of dc voltage and current levels, ideally with 100% efficiency, and control of the conversion ratio M via the duty cycle D. This model can be easily manipulated and solved using familiar techniques of ...
Fuses - Time Delay
... transformers, and other inductive components, the Cooper Bussmann LowPeak and Fusetron dual-element, time-delay fuses can be sized close to fullload amps to give maximum overcurrent protection. Sized properly, they will hold until surges and normal, temporary overloads subside. Take, for example, a ...
... transformers, and other inductive components, the Cooper Bussmann LowPeak and Fusetron dual-element, time-delay fuses can be sized close to fullload amps to give maximum overcurrent protection. Sized properly, they will hold until surges and normal, temporary overloads subside. Take, for example, a ...
IEEE-PSRC_Report_D8_.. - pes-psrc
... terminal to the remote relay terminal, thereby allowing high-speed tripping for faults occurring within 100% of the protected line. This document is intended as a tool for protection engineers to assist in determining when pilot protection should be installed for transmission line protection, in add ...
... terminal to the remote relay terminal, thereby allowing high-speed tripping for faults occurring within 100% of the protected line. This document is intended as a tool for protection engineers to assist in determining when pilot protection should be installed for transmission line protection, in add ...
Megablock section-Rev8-CCH.indd
... made using pluggable screw terminal type connectors. This allows wire terminations to be made to the individual connectors which are then plugged into the Megablock. Devices can then be easily connected and disconnected during commissioning. After commissioning, retaining screws are tightened to sec ...
... made using pluggable screw terminal type connectors. This allows wire terminations to be made to the individual connectors which are then plugged into the Megablock. Devices can then be easily connected and disconnected during commissioning. After commissioning, retaining screws are tightened to sec ...
AT-G-DETECT Gas Sensing System
... Point Detection, where sensors are located as near as possible to the most likely sources of leakage, such as the compressor, expansion valves, mechanical joints or cable duct trenches. Perimeter Detection, where sensors completely surround the area or equipment. With heavier than air gases such as ...
... Point Detection, where sensors are located as near as possible to the most likely sources of leakage, such as the compressor, expansion valves, mechanical joints or cable duct trenches. Perimeter Detection, where sensors completely surround the area or equipment. With heavier than air gases such as ...
Aalborg Universitet SYSTEMS Choi, Uimin
... It is divided into two main parts: the first part, which consists of Chapters 2 and 3, is reliability studies of the IGBT module regarding thermal stresses and the second part, composed of Chapters 4 and 5, discusses strategies to improve the reliability and availability of power electronic converte ...
... It is divided into two main parts: the first part, which consists of Chapters 2 and 3, is reliability studies of the IGBT module regarding thermal stresses and the second part, composed of Chapters 4 and 5, discusses strategies to improve the reliability and availability of power electronic converte ...
A Framework for Reliability and Performance Assessment of Wind
... The first three define WECS, grid, and faults characteristics. WECS characteristics feed the WECS model. Similarly, grid characteristics are an input for the grid model. Fault characteristics can feed both models.Within each of these groups, we can distinguish between i) model parameters, ii) determ ...
... The first three define WECS, grid, and faults characteristics. WECS characteristics feed the WECS model. Similarly, grid characteristics are an input for the grid model. Fault characteristics can feed both models.Within each of these groups, we can distinguish between i) model parameters, ii) determ ...
oki electronics (hong kong) ltd
... This list is to avoid unnecessary troubles in programming and application circuit. Please confirm if all the points below have been checked and return this list together with customer’s software. If there is any question concerning this check list, please feel free to contact us. This form is just f ...
... This list is to avoid unnecessary troubles in programming and application circuit. Please confirm if all the points below have been checked and return this list together with customer’s software. If there is any question concerning this check list, please feel free to contact us. This form is just f ...
Chapter 21 - Web Services Overview
... A software system is to be implemented as part of a burglar alarm system for commercial buildings. This uses several different types of sensor. These include movement detectors in individual rooms, door sensors that detect corridor doors opening, and window sensors on ground-floor windows that detec ...
... A software system is to be implemented as part of a burglar alarm system for commercial buildings. This uses several different types of sensor. These include movement detectors in individual rooms, door sensors that detect corridor doors opening, and window sensors on ground-floor windows that detec ...
ALP20 and ALT20/21 Series, +85°C
... All product specifications, statements, information and data (collectively, the “Information”) in this datasheet are subject to change. The customer is responsible for checking and verifying the extent to which the Information contained in this publication is applicable to an order at the time the o ...
... All product specifications, statements, information and data (collectively, the “Information”) in this datasheet are subject to change. The customer is responsible for checking and verifying the extent to which the Information contained in this publication is applicable to an order at the time the o ...
Evaluates: MAX3645 MAX3645 Evaluation Kit _______________ General Description
... The outputs of the MAX3645 are PECL compatible and any standard DC or AC termination can be used. Figure 1 illustrates typical DC and AC terminations. When the data outputs are AC-coupled a shunt can be put on JU4 to short VEE to ground. Otherwise JU4 should be left open. To avoid overloading the os ...
... The outputs of the MAX3645 are PECL compatible and any standard DC or AC termination can be used. Figure 1 illustrates typical DC and AC terminations. When the data outputs are AC-coupled a shunt can be put on JU4 to short VEE to ground. Otherwise JU4 should be left open. To avoid overloading the os ...
... independently enabled and can be configured to transmit on one or both network interfaces. Both GCB’s transmit the LLN0$DS3_GOOSE Data Set, which includes the Ground-Fault Start, Ground-Fault Operate, Resistor-Fault Start, Resistor-Fault Operate and Remote Trip status. These data elements support ne ...
A8503 Datasheet - Allegro Microsystems
... All unused LED pins should be connected to ground to prevent any undesired faults from triggering. For LED short detect, any enabled LEDx pins that have a voltage exceeding the short circuit detect voltage, VSC , causes the device to shut down irrespective of what mode the A8503 is in. The open LED ...
... All unused LED pins should be connected to ground to prevent any undesired faults from triggering. For LED short detect, any enabled LEDx pins that have a voltage exceeding the short circuit detect voltage, VSC , causes the device to shut down irrespective of what mode the A8503 is in. The open LED ...
General Description Features
... The EV kit circuit uses a latching hot-swap controller IC that operates with a 1V to 16V input source range connected at the VIN and GND terminal connectors. The EV kit features two external n-channel MOSFETs (N1, N2) for delivering up to 40A of continuous load current at the VOUT and GND terminal c ...
... The EV kit circuit uses a latching hot-swap controller IC that operates with a 1V to 16V input source range connected at the VIN and GND terminal connectors. The EV kit features two external n-channel MOSFETs (N1, N2) for delivering up to 40A of continuous load current at the VOUT and GND terminal c ...
Circuit Board Fabrication Project Sheet
... EEPROM command. Note the following: a. Put in only 32 numbers in each bracket set. b. Place a comma between each number c. Only used values of 0,1,2,4 d. Do not change any other part of the program 3. To program compile the program, select from the menu bar Project => then Compile and Program. 4. Th ...
... EEPROM command. Note the following: a. Put in only 32 numbers in each bracket set. b. Place a comma between each number c. Only used values of 0,1,2,4 d. Do not change any other part of the program 3. To program compile the program, select from the menu bar Project => then Compile and Program. 4. Th ...
Lecture 8: Symmetrical Components
... Power in sequence networks Sp = Vag Ia* + Vbg Ib* + Vcg Ic* Sp = [Vag Vbg Vcg] [Ia* Ib* Ic*]T ...
... Power in sequence networks Sp = Vag Ia* + Vbg Ib* + Vcg Ic* Sp = [Vag Vbg Vcg] [Ia* Ib* Ic*]T ...
Design and Analysis of Conventional and Ratioed Cmos Logic Circuit
... Today’s integrated circuits have a growing need for speed,area, and power. Despite many advantages, CMOS suffers from increased area, more power dissipation and correspondingly increased capacitance and delay, as the logic gates become more complex. Ratioed circuits use weak pull-up devices and stro ...
... Today’s integrated circuits have a growing need for speed,area, and power. Despite many advantages, CMOS suffers from increased area, more power dissipation and correspondingly increased capacitance and delay, as the logic gates become more complex. Ratioed circuits use weak pull-up devices and stro ...
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.