induction motor* parameters extraction
... results; therefore the percent error is expressed with respect to those results. The percent error between the two tests is reasonable for each parameter with the exception of core equivalent resistance Rc. It is however still safe to say that we can be fairly confident in the results of either test ...
... results; therefore the percent error is expressed with respect to those results. The percent error between the two tests is reasonable for each parameter with the exception of core equivalent resistance Rc. It is however still safe to say that we can be fairly confident in the results of either test ...
Kosterev and Undrill
... assumptions on how much load tripped during a fault and how much of air-conditioning load stalls due to low voltages o NERC TPL-001-4 requires evaluation of power plant disturbance ridethrough capabilities, and NERC PRC-024 provides voltage and frequency ride-through requirements for control and pro ...
... assumptions on how much load tripped during a fault and how much of air-conditioning load stalls due to low voltages o NERC TPL-001-4 requires evaluation of power plant disturbance ridethrough capabilities, and NERC PRC-024 provides voltage and frequency ride-through requirements for control and pro ...
DN207 - LTC2400 High Accuracy Differential to Single-Ended Converter for ±5V Supplies
... currents introducing an error source into CH, an optional guard circuit could be added as shown. The common point of these two resistors produces the potential for the guard ring. Consult the LTC1043 data sheet for more information. As is good practice in all high precision circuits, keep all lead ...
... currents introducing an error source into CH, an optional guard circuit could be added as shown. The common point of these two resistors produces the potential for the guard ring. Consult the LTC1043 data sheet for more information. As is good practice in all high precision circuits, keep all lead ...
Basic Controls, 4-1 Friction Brakes
... contact with a disk mounted on the motor shaft. Fail-safe brakes, which apply automatically when power is turned off, provide an extra level of security to weightlifting equipment. Friction brakes are used in applications where a motor has to hold a certain position, and when quick and precise stops ...
... contact with a disk mounted on the motor shaft. Fail-safe brakes, which apply automatically when power is turned off, provide an extra level of security to weightlifting equipment. Friction brakes are used in applications where a motor has to hold a certain position, and when quick and precise stops ...
PIC DESIGN (version 1) 2/11/2009 The decision to design and
... The switch connections required the addition of weak pull-up resistors to ensure a stable signal, shown in figure2. The purpose of these resistors is to maintain a high voltage to the input pins until the switch is closed and they are grounded. This prevents the pins from floating at intermediate va ...
... The switch connections required the addition of weak pull-up resistors to ensure a stable signal, shown in figure2. The purpose of these resistors is to maintain a high voltage to the input pins until the switch is closed and they are grounded. This prevents the pins from floating at intermediate va ...
Chapter 8: Reliability and Availability
... In this chapter we will first address the basics of reliability, including definitions, units of measurement, infant mortality, wear out mechanisms, and factors that contribute to component failures. We will then discuss various methods of estimating, specifying and measuring power converter reliabi ...
... In this chapter we will first address the basics of reliability, including definitions, units of measurement, infant mortality, wear out mechanisms, and factors that contribute to component failures. We will then discuss various methods of estimating, specifying and measuring power converter reliabi ...
English Translation PDF
... volume itself is handled purely in the analogue domain. Another feature specific to the PL342: excellent distributed control over two levels. First in the output, rectifying and filtering via regulators in series, then at each stage of the audio chain where the manufacturer has used a second layer o ...
... volume itself is handled purely in the analogue domain. Another feature specific to the PL342: excellent distributed control over two levels. First in the output, rectifying and filtering via regulators in series, then at each stage of the audio chain where the manufacturer has used a second layer o ...
Delta Connected Capacitors Vs Wye Connected Capacitors
... In addition, Wye connected capacitors do not circulate harmonics and thus are much more vulnerable to failure due to harmonics. ...
... In addition, Wye connected capacitors do not circulate harmonics and thus are much more vulnerable to failure due to harmonics. ...
ALTA Assessment Procedures
... Obtain and review written policies and procedures to verify logical access to information systems (i.e., network, data base, and application layers) containing Non-public Personal Information is restricted to authorized persons only. a. For the sample of employees tested in Assessment Procedure 3.02 ...
... Obtain and review written policies and procedures to verify logical access to information systems (i.e., network, data base, and application layers) containing Non-public Personal Information is restricted to authorized persons only. a. For the sample of employees tested in Assessment Procedure 3.02 ...
Fault Management Circuit
... necessary to shut down the PRM and restart it with a pulse applied to the ENABLE pin. In a circuit with two VTMs, there is a possibility that one VTM would shut down due to a fault and the other VTM continue to provide load current, all of which would flow through the body diodes of the faulted VTM’ ...
... necessary to shut down the PRM and restart it with a pulse applied to the ENABLE pin. In a circuit with two VTMs, there is a possibility that one VTM would shut down due to a fault and the other VTM continue to provide load current, all of which would flow through the body diodes of the faulted VTM’ ...
powerpoint
... 10% of dynamic power in 0.1 micron technology, Thompson, et al. Intel Technology Journal, Q3, ...
... 10% of dynamic power in 0.1 micron technology, Thompson, et al. Intel Technology Journal, Q3, ...
PR1-E SERIES 9kW, 12kW 18kW and 24kW HVAC RANGE 1
... temperature trip on the heatsink as a safety feature. The unit should be mounted vertically, with heatsink fins top to bottom, and with sufficient surrounding air space to maximise natural convection cooling. If the unit is mounted in an enclosure or cabinet, adequate ventilation and/or forced air-c ...
... temperature trip on the heatsink as a safety feature. The unit should be mounted vertically, with heatsink fins top to bottom, and with sufficient surrounding air space to maximise natural convection cooling. If the unit is mounted in an enclosure or cabinet, adequate ventilation and/or forced air-c ...
pad1 pad2 pad5 pad10 pad20 pad50 pad100 pad200 pad500
... The PAD type number denotes its maximum reverse current value in pico amperes. Devices with IR values intermediate to those shown are available upon request. ...
... The PAD type number denotes its maximum reverse current value in pico amperes. Devices with IR values intermediate to those shown are available upon request. ...
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.