Electronic fluorescent lamp ballast
... It would seem that devices with a BVCES of 400V could be used - however this would mean that the devices would have a BVCEO less than the voltage applied by the mains, which is not advisable. Hence the transistors should have a BVCEO rating of 400V minimum. The same type of calculation can be used f ...
... It would seem that devices with a BVCES of 400V could be used - however this would mean that the devices would have a BVCEO less than the voltage applied by the mains, which is not advisable. Hence the transistors should have a BVCEO rating of 400V minimum. The same type of calculation can be used f ...
Rechargeable Power Supply Manual
... HIGH (5 VDC), any power supplies set to AUTO mode will turn on their outputs. When the control signal returns to a LO (0 VDC) state, the supply outputs will turn OFF. Note: Ensure polarity is correct when making control wiring connections. CHARGING The two internal gel-cell batteries can be charged ...
... HIGH (5 VDC), any power supplies set to AUTO mode will turn on their outputs. When the control signal returns to a LO (0 VDC) state, the supply outputs will turn OFF. Note: Ensure polarity is correct when making control wiring connections. CHARGING The two internal gel-cell batteries can be charged ...
The ME118 SN754410 Dual 1A H-Bridge Module
... J3, pin 2 : Since the SN754410 is capable of switching two H-Bridge channels at a maximum of 1A each, care must be taken in the methods employed returning this substantial current to ground. For this reason, a separate high-current ground connection is available at J3, pin 2. A separate connection s ...
... J3, pin 2 : Since the SN754410 is capable of switching two H-Bridge channels at a maximum of 1A each, care must be taken in the methods employed returning this substantial current to ground. For this reason, a separate high-current ground connection is available at J3, pin 2. A separate connection s ...
G201X / G210X User Manual
... CAUTION! Do not short the motor leads to each other or to ground; damage will result to the G201X. 4-wire, 6-wire and 8-wire motor may be used. When 6-wire motors are used, they may be connected in half winding or full winding. This is equivalent to an 8-wire motor connected in parallel or series. I ...
... CAUTION! Do not short the motor leads to each other or to ground; damage will result to the G201X. 4-wire, 6-wire and 8-wire motor may be used. When 6-wire motors are used, they may be connected in half winding or full winding. This is equivalent to an 8-wire motor connected in parallel or series. I ...
GEIGER COUNTER
... replace batteries. The fact that the vibrator is operating does not necessarily mean that the batteries are good. Flashlight batteries are inexpensive and readily available. Be sure yours are fresh! ...
... replace batteries. The fact that the vibrator is operating does not necessarily mean that the batteries are good. Flashlight batteries are inexpensive and readily available. Be sure yours are fresh! ...
BS31473481
... link is more in demand. The single-stage PFC converters operate with only one controller to regulate the DC link voltage along with the power factor correction. The absence of a second controller has a greater impact on the performance of single-stage PFC converters and requires a design to operate ...
... link is more in demand. The single-stage PFC converters operate with only one controller to regulate the DC link voltage along with the power factor correction. The absence of a second controller has a greater impact on the performance of single-stage PFC converters and requires a design to operate ...
LINEAR VARIABLE DIFFERENTIAL TRANSFORMER
... Then unknown resistance, R=P/Q*S It indicates that resistance of connecting lead, r has no effect on the measurement, provided that the two sets of ratio arms have equal ratios. It indicates that it is desirable to keep r as small as possible in order to minimize the errors in case there is a differ ...
... Then unknown resistance, R=P/Q*S It indicates that resistance of connecting lead, r has no effect on the measurement, provided that the two sets of ratio arms have equal ratios. It indicates that it is desirable to keep r as small as possible in order to minimize the errors in case there is a differ ...
SECTION 16409
... neutral, transformer core, primary and secondary shields, frame, equipment grounding conductors from the branch circuits, system monitoring electronics, all input and output conduits through the conduit landing plates. One or more output panelboards with secondary circuit breaker protection shall be ...
... neutral, transformer core, primary and secondary shields, frame, equipment grounding conductors from the branch circuits, system monitoring electronics, all input and output conduits through the conduit landing plates. One or more output panelboards with secondary circuit breaker protection shall be ...
Electrical Machines - Questions and Answers
... 33. How do the various methods of starting on reduced voltage compare as regards torque per ampere? Star-delta and auto-transformer methods have the advantage over primary resistance and primary reactor methods. 34. What mechanical methods of reducing starting current can be adopted? The starting du ...
... 33. How do the various methods of starting on reduced voltage compare as regards torque per ampere? Star-delta and auto-transformer methods have the advantage over primary resistance and primary reactor methods. 34. What mechanical methods of reducing starting current can be adopted? The starting du ...
Programmable Digital Timer
... The PTC-15 timer is a programmable digital timer with five relay outputs, each of which has five selectable operating modes and an external start/reset function. Each output can be programmed either in timed or instantaneous mode, making it a particularly flexible unit for in-panel machine control a ...
... The PTC-15 timer is a programmable digital timer with five relay outputs, each of which has five selectable operating modes and an external start/reset function. Each output can be programmed either in timed or instantaneous mode, making it a particularly flexible unit for in-panel machine control a ...
The Active Front End allows sinusoidal mains current
... Operation independent of the phase sequence Optimised administration of spare parts due to equal components in the Active Infeed Converter and the Altivar inverter Energy-saving operation Improved efficiency due to innovative control ...
... Operation independent of the phase sequence Optimised administration of spare parts due to equal components in the Active Infeed Converter and the Altivar inverter Energy-saving operation Improved efficiency due to innovative control ...
AN-1137 APPLICATION NOTE
... 24-bit, signed output code for the same input signal level. The 24-bit, signed output code is available at a fixed rate of 8 kSPS (thousand samples per second). With a full-scale input signal of 0.5 V and an internal reference of 1.2 V, the ADC output code is approximately 5,928,256 (0x5A7540), as s ...
... 24-bit, signed output code for the same input signal level. The 24-bit, signed output code is available at a fixed rate of 8 kSPS (thousand samples per second). With a full-scale input signal of 0.5 V and an internal reference of 1.2 V, the ADC output code is approximately 5,928,256 (0x5A7540), as s ...
transformer protection
... healthy section in normal operation and to ensure uninterruptable power supply. The basic electrical quantities those are likely to change during abnormal fault conditions are current, voltage, phase angle and frequency . Protective relays utilizes one or more of these quantities to detect abnorma ...
... healthy section in normal operation and to ensure uninterruptable power supply. The basic electrical quantities those are likely to change during abnormal fault conditions are current, voltage, phase angle and frequency . Protective relays utilizes one or more of these quantities to detect abnorma ...
J047026063
... generation for filter is fromhysteresis current controller techniques. With the all these element shunt active power filter reduce the total harmonic distortion. Thispaper represents the simulation and analysis of the using three phase three wire system active filter to compensate harmonics .Theprop ...
... generation for filter is fromhysteresis current controller techniques. With the all these element shunt active power filter reduce the total harmonic distortion. Thispaper represents the simulation and analysis of the using three phase three wire system active filter to compensate harmonics .Theprop ...
Lab 4 Voltage Divider and Bridge Circuits
... 2. Insert the pot on your PB. Connect short wires to the three terminals. Measure the resistance from one End Terminal to the other End Terminal using a digital ohmeter (DOM). Then measure the resistance from one End Terminal to the Wiper terminal. Repeat this for the other end. 3. Now connect the D ...
... 2. Insert the pot on your PB. Connect short wires to the three terminals. Measure the resistance from one End Terminal to the other End Terminal using a digital ohmeter (DOM). Then measure the resistance from one End Terminal to the Wiper terminal. Repeat this for the other end. 3. Now connect the D ...
5305.SMPS Flyback design equations
... The current density is 5A / mm2 when the wire is long (> 1m). when the wire is short with a small number of turns , a current density of 6-10 A/mm is also acceptable. Avoid using wire with a diameter larger than 1mm to avoid severe eddy current losses as well as to make winding easier. For high curr ...
... The current density is 5A / mm2 when the wire is long (> 1m). when the wire is short with a small number of turns , a current density of 6-10 A/mm is also acceptable. Avoid using wire with a diameter larger than 1mm to avoid severe eddy current losses as well as to make winding easier. For high curr ...
IMPLEMENTATION OF SINGLE STAGE FULL BRIDGE SERIES
... generation of the desired output voltage is achieved comparing the desired reference waveform (modulating signal) with a high-frequency triangular’ carrier’ wave as depicted schematically in Fig 1.2. Depending on whether the signal voltage is larger or smaller than the carrier waveform, either the p ...
... generation of the desired output voltage is achieved comparing the desired reference waveform (modulating signal) with a high-frequency triangular’ carrier’ wave as depicted schematically in Fig 1.2. Depending on whether the signal voltage is larger or smaller than the carrier waveform, either the p ...
PDF
... series compensation for different line. The converters are linked together at their dc terminals and connected to the ac systems through their series coupling transformers. With this scheme, in addition to providing series reactive compensation, any converter can be controlled to supply active power ...
... series compensation for different line. The converters are linked together at their dc terminals and connected to the ac systems through their series coupling transformers. With this scheme, in addition to providing series reactive compensation, any converter can be controlled to supply active power ...
Three-phase electric power
Three-phase electric power is a common method of alternating-current electric power generation, transmission, and distribution. It is a type of polyphase system and is the most common method used by electrical grids worldwide to transfer power. It is also used to power large motors and other heavy loads. A three-phase system is usually more economical than an equivalent single-phase or two-phase system at the same line to ground voltage because it uses less conductor material to transmit electrical power.The three-phase system was independently invented by Galileo Ferraris, Mikhail Dolivo-Dobrovolsky, Jonas Wenström and Nikola Tesla in the late 1880s.