Implementing Temperature-Based Variable Fan Speed Control in
... For example, a +12V nominal fan modulated linearly to +8V would theoretically run at 66.7% RPM. Though this seems relatively simple, there are drawbacks. All BDC fans have a “stall voltage” that can vary from 35% to 60% of nominal voltage, making wide range speed control impossible. Additionally, th ...
... For example, a +12V nominal fan modulated linearly to +8V would theoretically run at 66.7% RPM. Though this seems relatively simple, there are drawbacks. All BDC fans have a “stall voltage” that can vary from 35% to 60% of nominal voltage, making wide range speed control impossible. Additionally, th ...
Induction Motor and Self-Excited Induction Generator
... Since its invention by Nikola Tesla in 1888, the induction motor has been built in vast numbers and has become the most important workhorse in industry. This article introduces the basic construction, operating principle, and major performance characteristics of three-phase squirrel-cage and slip-ri ...
... Since its invention by Nikola Tesla in 1888, the induction motor has been built in vast numbers and has become the most important workhorse in industry. This article introduces the basic construction, operating principle, and major performance characteristics of three-phase squirrel-cage and slip-ri ...
1500 Watt MOSORB® Transient Voltage Suppressor, 6.0 V Unidir
... condition associated with the inductance of the device and the inductance of the connection method. The capacitance effect is of minor importance in the parallel protection scheme because it only produces a time delay in the transition from the operating voltage to the clamp voltage as shown in Figu ...
... condition associated with the inductance of the device and the inductance of the connection method. The capacitance effect is of minor importance in the parallel protection scheme because it only produces a time delay in the transition from the operating voltage to the clamp voltage as shown in Figu ...
STEVAL-ISA044V2
... Only an inductor and 3 capacitors are required. The current mode PWM architecture and stable operation with low-ESR SMD ceramic capacitors result in low output ripple. To maximize power conversion efficiency in light load, the regulator can work in burst mode automatically. The device can operate in ...
... Only an inductor and 3 capacitors are required. The current mode PWM architecture and stable operation with low-ESR SMD ceramic capacitors result in low output ripple. To maximize power conversion efficiency in light load, the regulator can work in burst mode automatically. The device can operate in ...
Schneider Conext XW Application Note
... In addition to providing backup power for commercial operations, the Conext XW easily integrates Photovoltaic (PV) power reducing business dependency on utility power by offsetting consumption and increasing the return on investment. Conext XW can also manage load shifting to avoid expensive time-of ...
... In addition to providing backup power for commercial operations, the Conext XW easily integrates Photovoltaic (PV) power reducing business dependency on utility power by offsetting consumption and increasing the return on investment. Conext XW can also manage load shifting to avoid expensive time-of ...
Brochure
... Distribution engineers seek to maintain and improve the power quality of the distribution network to deal with the ever increasing demand. Distribution generators, different load characteristics, single-phase sections and unbalanced lines all contribute to the complexity of the voltage regulation pr ...
... Distribution engineers seek to maintain and improve the power quality of the distribution network to deal with the ever increasing demand. Distribution generators, different load characteristics, single-phase sections and unbalanced lines all contribute to the complexity of the voltage regulation pr ...
Motor Controller Marking
... There are several independent organizations engaged in regular testing of motor controllers under short circuit conditions. One of these, Underwriter’s Laboratories, tests controllers rated one horsepower or less and 300V or less with 1000 amps short-circuit current available to the controller test ...
... There are several independent organizations engaged in regular testing of motor controllers under short circuit conditions. One of these, Underwriter’s Laboratories, tests controllers rated one horsepower or less and 300V or less with 1000 amps short-circuit current available to the controller test ...
Application Note - Adler Instrumentos
... Low bias currents It is common for telecomms transformers to have a small DC current flowing through the primary winding. It is important that when transformers are tested, the effects of any current (that will be present when the device is in circuit) are taken into account. In some telecomm transf ...
... Low bias currents It is common for telecomms transformers to have a small DC current flowing through the primary winding. It is important that when transformers are tested, the effects of any current (that will be present when the device is in circuit) are taken into account. In some telecomm transf ...
How Do You Control An Electric Motor When the Communication
... Programmable devices allow some flexibility to make sure that specific motors can remain running so that a process or batch is not ruined when the network is disrupted. Some network-based motor control systems can hold the last motor state for a specified period until a secondary control system take ...
... Programmable devices allow some flexibility to make sure that specific motors can remain running so that a process or batch is not ruined when the network is disrupted. Some network-based motor control systems can hold the last motor state for a specified period until a secondary control system take ...
Phet Parallel Circui..
... battery to the light bulb. Once the circuit is completed, the bulb should light and you should see the flow of charge from positive to negative end of the battery through the circuit. This is circuit 1. 2. Use a voltmeter (check the box next to voltmeter on the right side of the display) to measure ...
... battery to the light bulb. Once the circuit is completed, the bulb should light and you should see the flow of charge from positive to negative end of the battery through the circuit. This is circuit 1. 2. Use a voltmeter (check the box next to voltmeter on the right side of the display) to measure ...
EOT AMPLIFIED PHOTODETECTOR USER’S GUIDE
... Dark Current: When a termination is present, a dark current (nA range) will flow if the photodiode is biased. Disconnecting the coaxial cable will prevent this current from flowing. DC Block Capacitor: Prevents the DC voltage that is supplied through the amplifier output from exiting the detector wh ...
... Dark Current: When a termination is present, a dark current (nA range) will flow if the photodiode is biased. Disconnecting the coaxial cable will prevent this current from flowing. DC Block Capacitor: Prevents the DC voltage that is supplied through the amplifier output from exiting the detector wh ...
Array Protector - Crawford Broadcasting
... A typical AM directional array is a giant cluster of interactions. If the phase or ratio should change at any one tower, the others will be affected -- sometimes dramatically. If you have one or more towers that only want a small fraction of the total power, another problem arises: if one of the hig ...
... A typical AM directional array is a giant cluster of interactions. If the phase or ratio should change at any one tower, the others will be affected -- sometimes dramatically. If you have one or more towers that only want a small fraction of the total power, another problem arises: if one of the hig ...
Standard Safety High Voltage Installations On Board Ships
... • areas of earthed metal that can be easily touched increase the possibility of electric shock from a high voltage conductor • high voltage insulation testing (flash testing) can be particularly hazardous when several parts of the equipment are energised for a period of time • equipment using wat ...
... • areas of earthed metal that can be easily touched increase the possibility of electric shock from a high voltage conductor • high voltage insulation testing (flash testing) can be particularly hazardous when several parts of the equipment are energised for a period of time • equipment using wat ...
Metadyne
A metadyne is a direct current electrical machine with two pairs of brushes. It can be used as an amplifier or rotary transformer. It is similar to a third brush dynamo but has additional regulator or ""variator"" windings. It is also similar to an amplidyne except that the latter has a compensating winding which fully counteracts the effect of the flux produced by the load current. The technical description is ""a cross-field direct current machine designed to utilize armature reaction"". A metadyne can convert a constant-voltage input into a constant-current, variable-voltage output.