Chapter 2 FAULT IMPEDANCE LOOPS AND OVERHEAD LINE
... impedance calculations from first principles, whilst section 2.4 will provide some insight into the effect that different load configurations could have on relay measurements. Protection relays are set based on the parameters obtained from the power network, and as such it is imperative that all hig ...
... impedance calculations from first principles, whilst section 2.4 will provide some insight into the effect that different load configurations could have on relay measurements. Protection relays are set based on the parameters obtained from the power network, and as such it is imperative that all hig ...
INSTRUCTION MANUAL DISTANCE RELAY GRZ100
... The power system protection system generally consists of a main protection and a backup protection to reliably remove all faults. In principle, system faults must be removed in the shortest possible time and cause the minimum outage. This important function is served by the main protection. In dista ...
... The power system protection system generally consists of a main protection and a backup protection to reliably remove all faults. In principle, system faults must be removed in the shortest possible time and cause the minimum outage. This important function is served by the main protection. In dista ...
INSTRUCTION MANUAL DISTANCE RELAY GRZ100
... The power system protection system generally consists of a main protection and a backup protection to reliably remove all faults. In principle, system faults must be removed in the shortest possible time and cause the minimum outage. This important function is served by the main protection. In dista ...
... The power system protection system generally consists of a main protection and a backup protection to reliably remove all faults. In principle, system faults must be removed in the shortest possible time and cause the minimum outage. This important function is served by the main protection. In dista ...
2033D SERIES
... conditioned AC power to a load. This is sometimes referred to as the "System". UPS MODULE CABINET - The metal enclosure which contains the Converter, the Inverter, the Chopper, the Static Transfer Switch, the Internal Bypass line, the operator controls, and the internal control system required to pr ...
... conditioned AC power to a load. This is sometimes referred to as the "System". UPS MODULE CABINET - The metal enclosure which contains the Converter, the Inverter, the Chopper, the Static Transfer Switch, the Internal Bypass line, the operator controls, and the internal control system required to pr ...
powertronix - Tools.Store
... The UPS described here is an on-line dual conversion type UPS with automatic by-pass in compliance with European standard EN62040-1-2. This UPS performs a dual conversion of the incoming voltage continuously and without interruption. The absence of direct mains-load connection does not allow the pas ...
... The UPS described here is an on-line dual conversion type UPS with automatic by-pass in compliance with European standard EN62040-1-2. This UPS performs a dual conversion of the incoming voltage continuously and without interruption. The absence of direct mains-load connection does not allow the pas ...
WATTS BAR
... Government serving the State of Tennessee and parts of six other States in the southeast on the boundaries of Tennessee. TVA is interconnected with electric power companies to the north, west, south, and east of its service area. As shown in Figure 8.1-1, the TVA grid consists of interconnected hydr ...
... Government serving the State of Tennessee and parts of six other States in the southeast on the boundaries of Tennessee. TVA is interconnected with electric power companies to the north, west, south, and east of its service area. As shown in Figure 8.1-1, the TVA grid consists of interconnected hydr ...
Evaluates: MAX6951 MAX6951 Evaluation Kit General Description Features
... DVCC input. The LDO linear regulator supplies power to the translator’s output side. A 5-pin header (J2) is provided for monitoring the +5V CLK_P, CS_P, DIN_P nonlevel-translated, and LOOPBACK signals coming from the parallel port cable. The EV kit can be easily reconfigured for stand-alone operatio ...
... DVCC input. The LDO linear regulator supplies power to the translator’s output side. A 5-pin header (J2) is provided for monitoring the +5V CLK_P, CS_P, DIN_P nonlevel-translated, and LOOPBACK signals coming from the parallel port cable. The EV kit can be easily reconfigured for stand-alone operatio ...
ESD DESIGN COOKBOOK
... Electrical overstress (EOS) has historically been one of the leading causes of integrated circuit failures, regardless of the semiconductor manufacturer. In general terms, electrical overstress can be defined as any condition where one or more pins on an IC are subjected to current and/or voltage le ...
... Electrical overstress (EOS) has historically been one of the leading causes of integrated circuit failures, regardless of the semiconductor manufacturer. In general terms, electrical overstress can be defined as any condition where one or more pins on an IC are subjected to current and/or voltage le ...
100 Level 1 Semester Course Code Course Title Units Prerequisite
... plots. State space description of control systems, analogue computer simulation of control systems. EEG 407 – I.TRODUCTIO. TO COMPUTERS Principle of analogue computing. Linear computer units – summer. Integrators/Differentiators. Non-linear operators, operational amplifiers. Solution to some differe ...
... plots. State space description of control systems, analogue computer simulation of control systems. EEG 407 – I.TRODUCTIO. TO COMPUTERS Principle of analogue computing. Linear computer units – summer. Integrators/Differentiators. Non-linear operators, operational amplifiers. Solution to some differe ...
IMPORTANT!!!! - TWR Lighting
... lifting of the cable by the supplied cable grip or conduit to affix to the tower. Always work safely and adhere to all OSHA Safety Guidelines when lifting wiring or working on the structure or tower itself. It is the installer’s responsibility to install the lighting kit in a safe manner. Installers ...
... lifting of the cable by the supplied cable grip or conduit to affix to the tower. Always work safely and adhere to all OSHA Safety Guidelines when lifting wiring or working on the structure or tower itself. It is the installer’s responsibility to install the lighting kit in a safe manner. Installers ...
230V FX Drives - Accu Electric Motors Inc.
... The FX drive is capable of two-way communication with an external controller or computer using an optically isolated RS-423 serial interface port. RS-423 is signal compatible with both RS-232C and RS-422 serial communications protocol. Programming of motion parameters, input/ output functions, opera ...
... The FX drive is capable of two-way communication with an external controller or computer using an optically isolated RS-423 serial interface port. RS-423 is signal compatible with both RS-232C and RS-422 serial communications protocol. Programming of motion parameters, input/ output functions, opera ...
6.2 MB - Yaskawa
... The startup and acceleration characteristics of the motor are restricted to the drive overload current rating (HD: 150% 60 s, ND: 120% 60 s). The overload rating for the drive determines the starting and accelerating characteristics of the motor. Expect lower torque than when running from line power ...
... The startup and acceleration characteristics of the motor are restricted to the drive overload current rating (HD: 150% 60 s, ND: 120% 60 s). The overload rating for the drive determines the starting and accelerating characteristics of the motor. Expect lower torque than when running from line power ...
Alberta Interconnected Electric System Protection Standard
... The emphasis for protection application is to protect the AIES from the effects of disturbances and faults on protected equipment, minimize the equipment removed from service during these conditions and at the same time allow the interconnected electric system to continue serving native Alberta load ...
... The emphasis for protection application is to protect the AIES from the effects of disturbances and faults on protected equipment, minimize the equipment removed from service during these conditions and at the same time allow the interconnected electric system to continue serving native Alberta load ...
Catalog LV12 - 2015
... Contacts: auxiliary switches can be expanded as for standard contactors Coil voltage: - All main voltages in use worldwide are supported: 24 V DC and 110 V DC (32 V DC and 72 V DC on request) - The series resistor variant can be supplied for other voltage ranges ...
... Contacts: auxiliary switches can be expanded as for standard contactors Coil voltage: - All main voltages in use worldwide are supported: 24 V DC and 110 V DC (32 V DC and 72 V DC on request) - The series resistor variant can be supplied for other voltage ranges ...
Installation and Maintenance Instruction
... In noise-sensitive areas, the designer should use heavier gauge support structure and appropriate vibration isolating material, as necessary. When Rulmeca motorized pulley mounting brackets are NOT used, it is essential that: 1. The mounting equipment supports at least 80% of the shaft flats. 2. ...
... In noise-sensitive areas, the designer should use heavier gauge support structure and appropriate vibration isolating material, as necessary. When Rulmeca motorized pulley mounting brackets are NOT used, it is essential that: 1. The mounting equipment supports at least 80% of the shaft flats. 2. ...
L26 Hardware Design
... backup mode, L26 GNSS module has excellent low-power consumption in different scenes. EASY technology as the key feature of L26 is one kind of AGPS. Collecting and processing all internal aiding information like GPS time, Ephemeris, Last Position etc, the GNSS module will have a fast TTFF in either ...
... backup mode, L26 GNSS module has excellent low-power consumption in different scenes. EASY technology as the key feature of L26 is one kind of AGPS. Collecting and processing all internal aiding information like GPS time, Ephemeris, Last Position etc, the GNSS module will have a fast TTFF in either ...
3.3 volt logic characteristics and applications
... Interconnecting Device Outputs The output structure of IDT’s 3.3 volt components should be capable of driving all except the heaviest loads. If it is necessary to drive a large load at high speed, it is possible to connect two outputs together to reduce the driving impedance by about 50%. The design ...
... Interconnecting Device Outputs The output structure of IDT’s 3.3 volt components should be capable of driving all except the heaviest loads. If it is necessary to drive a large load at high speed, it is possible to connect two outputs together to reduce the driving impedance by about 50%. The design ...
English - SMC ETech
... (2) Only personnel with appropriate training should operate machinery and equipment. The product specified here may become unsafe if handled incorrectly. The assembly, operation and maintenance of machines or equipment including our products must be performed by an operator who is appropriately trai ...
... (2) Only personnel with appropriate training should operate machinery and equipment. The product specified here may become unsafe if handled incorrectly. The assembly, operation and maintenance of machines or equipment including our products must be performed by an operator who is appropriately trai ...
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.