Design and Computer Modeling of Ultracapacitor Regenerative
... was clear that the system would need a boost converter to make use of the reclaimed energy. A simulation of the most efficient boost converter was designed using LT Spice and the real circuit is ready to be installed in the scooter. Once installed, the live performance of the scooter will be compare ...
... was clear that the system would need a boost converter to make use of the reclaimed energy. A simulation of the most efficient boost converter was designed using LT Spice and the real circuit is ready to be installed in the scooter. Once installed, the live performance of the scooter will be compare ...
Isobar 8-Outlet Professional A/V Power Conditioning
... Input Voltage LCD meter displays the in-coming utility power with dimmer control. Alerts user to input voltage levels ...
... Input Voltage LCD meter displays the in-coming utility power with dimmer control. Alerts user to input voltage levels ...
Skill Sheet 8-A Ohm's Law
... 1. Using Ohm’s Law to understand circuits To work through this skill sheet, you will need the symbols used to depict circuits in diagrams. The symbols that are most commonly used for circuit diagrams are provided to the right. All of the circuits discussed in this skill sheet are series circuits. Th ...
... 1. Using Ohm’s Law to understand circuits To work through this skill sheet, you will need the symbols used to depict circuits in diagrams. The symbols that are most commonly used for circuit diagrams are provided to the right. All of the circuits discussed in this skill sheet are series circuits. Th ...
- Steelpumps
... The level sensor for the pump should be fitted in the header tank or break tank at the level at which you want the pump to activate. If there is any additional fill system such as a mains water float valve in a rainwater system, you would set the sensor height accordingly depending on which fill sys ...
... The level sensor for the pump should be fitted in the header tank or break tank at the level at which you want the pump to activate. If there is any additional fill system such as a mains water float valve in a rainwater system, you would set the sensor height accordingly depending on which fill sys ...
Causes of electrical fires
... (burning) of the electrodes.” c The insulating medium can be an air gap, insulation worn thin by aging, abuse, or a number of other factors. The conditions for arcing may form over a wide range of time intervals, from milliseconds to decades, before an arcing fault develops. Both current level and d ...
... (burning) of the electrodes.” c The insulating medium can be an air gap, insulation worn thin by aging, abuse, or a number of other factors. The conditions for arcing may form over a wide range of time intervals, from milliseconds to decades, before an arcing fault develops. Both current level and d ...
Bus Edison High Speed Fuse Application
... fault conditions and the fuse voltage rating is selected to be equal or greater than the supply line-to-line voltage. In the case of the three phase double Wye (star) arrangement with interphase transformer, the voltage rating of the fuse must be twice the line to neutral voltage. For large rectifie ...
... fault conditions and the fuse voltage rating is selected to be equal or greater than the supply line-to-line voltage. In the case of the three phase double Wye (star) arrangement with interphase transformer, the voltage rating of the fuse must be twice the line to neutral voltage. For large rectifie ...
DC Proportional Thrusters
... Maintenance WESMAR bow thrusters are hard working, powerful units. DC Pro units are continuous duty operation systems. They do not require an over-heat switch, or a directional overheat switch. Also, the motor comes equipped standard with a built-in motor brake to prevent motor damage between direct ...
... Maintenance WESMAR bow thrusters are hard working, powerful units. DC Pro units are continuous duty operation systems. They do not require an over-heat switch, or a directional overheat switch. Also, the motor comes equipped standard with a built-in motor brake to prevent motor damage between direct ...
2010 B1 Session Questionnaire ( doc , 67 kB ) - SC B1
... Power system technical performance issues related to the application of long HVAC cables ...
... Power system technical performance issues related to the application of long HVAC cables ...
PW Data Sheet - Spec-Tech Industrial Electric
... The KBBC series of battery powered variable speed controls are designed for 12, 24, 36, and 48 Volt PM and Series Wound DC motors. Microcontroller design provides superior performance and ease of tailoring to specific applications. Operating in a regenerative mode, precise and efficient control is o ...
... The KBBC series of battery powered variable speed controls are designed for 12, 24, 36, and 48 Volt PM and Series Wound DC motors. Microcontroller design provides superior performance and ease of tailoring to specific applications. Operating in a regenerative mode, precise and efficient control is o ...
Coupling Faults
... Inversion Coupling Faults (CFin) • or in cell j inverts contents of cell i • Condition: For all cells that are coupled, each should be read after a series of possible CFins may have occurred, and the # of coupled cell transitions must be odd (to prevent the CFins from masking each other). • < ; > a ...
... Inversion Coupling Faults (CFin) • or in cell j inverts contents of cell i • Condition: For all cells that are coupled, each should be read after a series of possible CFins may have occurred, and the # of coupled cell transitions must be odd (to prevent the CFins from masking each other). • < ; > a ...
This test is described in Section 5.4 of NEMA AB 4-1996
... The data will vary according to the breaker frame type, ampere rating and manufacturer. The manufacturer should be consulted to determine the acceptable level for the breaker under test. If the average test values on any pole of the breaker exceed the manufacturer’s data, a potential overheating con ...
... The data will vary according to the breaker frame type, ampere rating and manufacturer. The manufacturer should be consulted to determine the acceptable level for the breaker under test. If the average test values on any pole of the breaker exceed the manufacturer’s data, a potential overheating con ...
SPECIFICATION FOR 75 KV,75 mA, DC HV TEST KIT
... SPECIFICATION FOR 75 KV,75 mA, DC HV TEST KIT PART A: PART B: ...
... SPECIFICATION FOR 75 KV,75 mA, DC HV TEST KIT PART A: PART B: ...
CN-0054 利用AD5450/AD5451/AD5452/AD5453电流输出DAC处理交流信号
... In any circuit where ac performance is important, careful consideration is given to the layout to ensure that the rated performance is achieved. The printed circuit board should be designed so that the analog and digital sections are separated and confined to certain areas of the board. If the DAC i ...
... In any circuit where ac performance is important, careful consideration is given to the layout to ensure that the rated performance is achieved. The printed circuit board should be designed so that the analog and digital sections are separated and confined to certain areas of the board. If the DAC i ...
Instantaneous Reclosing
... • Utilities use this for PQ concerns • Increases the probability that DG will not disconnect in time – Makes it almost a certainty that some won’t ...
... • Utilities use this for PQ concerns • Increases the probability that DG will not disconnect in time – Makes it almost a certainty that some won’t ...
Data Center Infrastructure Management: How to Optimize Data Center Operations
... Nameplate: Is generally over-rated by up to 70% Real-time: Snapshot in time of power supply consumption. Will vary based on server load and redundancy levels Budgeted: A value that is closer to the max real-time power over a defined duration and conditions. ...
... Nameplate: Is generally over-rated by up to 70% Real-time: Snapshot in time of power supply consumption. Will vary based on server load and redundancy levels Budgeted: A value that is closer to the max real-time power over a defined duration and conditions. ...
How to achieve higher redundancy of the UPS for QPS ?
... -The new DQLPU-typeS crates shall be powered from both Line-1 AND Line-2 (one line per power-pack, one additional power-pack to be foreseen). 2) At the place of all other existing LPU’s (1188 total): -Same separation of the powering lines for the DQHDS as above. The existing Quench Protection Crate ...
... -The new DQLPU-typeS crates shall be powered from both Line-1 AND Line-2 (one line per power-pack, one additional power-pack to be foreseen). 2) At the place of all other existing LPU’s (1188 total): -Same separation of the powering lines for the DQHDS as above. The existing Quench Protection Crate ...
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.