Switchgear & Protection
... Voltage transformers VTs One requirement should be used with protection, which is that the secondary voltage must be accurate representation of the primary voltage in both magnitude and phase. To meet this requirement, they are designed to operate at low flux densities so that Ie , ration and pha ...
... Voltage transformers VTs One requirement should be used with protection, which is that the secondary voltage must be accurate representation of the primary voltage in both magnitude and phase. To meet this requirement, they are designed to operate at low flux densities so that Ie , ration and pha ...
ACS754xCB-150 - Allegro Microsystems
... 1 A change through the primary conductor. The sensitivity is the product of the magnetic circuit sensitivity (G / A) and the linear IC amplifier gain (mV/G). The linear IC amplifier gain is programmed at the factory to optimize the sensitivity (mV/A) for the full-scale current of the device. Noise ( ...
... 1 A change through the primary conductor. The sensitivity is the product of the magnetic circuit sensitivity (G / A) and the linear IC amplifier gain (mV/G). The linear IC amplifier gain is programmed at the factory to optimize the sensitivity (mV/A) for the full-scale current of the device. Noise ( ...
Lab 3
... something else “doped” into them. The important point is that one side has a slight excess of electron carriers and the other side has an excess of hole carriers. If you swap a silicon atom (with 4 bonding electrons) with a gallium (with 3 valence electrons) you end up with a hole (missing electron) ...
... something else “doped” into them. The important point is that one side has a slight excess of electron carriers and the other side has an excess of hole carriers. If you swap a silicon atom (with 4 bonding electrons) with a gallium (with 3 valence electrons) you end up with a hole (missing electron) ...
Understanding the Alternator
... Delta wound stators can be identified because they have only three stator lead ends. Delta stators allow for higher current flow being delivered at low ...
... Delta wound stators can be identified because they have only three stator lead ends. Delta stators allow for higher current flow being delivered at low ...
Valve Troubleshooting Guide Product Description
... Disconnect the 2-position harness connection (P14 & J14) at the valve and check for power using a Volt Meter at P14. Perform test with power turned on to both Monitor and Valve Control Modules. Connect meter Positive to female contact (Red/White wire color) and meter negative to male contact (Black/ ...
... Disconnect the 2-position harness connection (P14 & J14) at the valve and check for power using a Volt Meter at P14. Perform test with power turned on to both Monitor and Valve Control Modules. Connect meter Positive to female contact (Red/White wire color) and meter negative to male contact (Black/ ...
Diode Failure Scenarios Modes of Failure
... Cause: Over voltage or current. Usually due to out of phase paralleling, a lightning strike or other abnormal transient. This mode of diode failure may also occur if a voltage is imposed upon the terminals of a brushless generator while it is at rest. Effects: Increased excitation. Exciter rotor and ...
... Cause: Over voltage or current. Usually due to out of phase paralleling, a lightning strike or other abnormal transient. This mode of diode failure may also occur if a voltage is imposed upon the terminals of a brushless generator while it is at rest. Effects: Increased excitation. Exciter rotor and ...
power metal strip® resistors
... Automotive engine fan controls utilize brushless DC motors to improve engine temperature management. Accurate air flow and temperature control in the engine compartment are needed to allow the engine to run at a constant higher temperature for better fuel efficiency and lower ...
... Automotive engine fan controls utilize brushless DC motors to improve engine temperature management. Accurate air flow and temperature control in the engine compartment are needed to allow the engine to run at a constant higher temperature for better fuel efficiency and lower ...
Performance Improvement of Phase Displacement Modulated Inverter
... the inverter constant. The output waveforms of an ideal inverter should be sinusoidal. However, the waveforms of practical inverters are non-sinusoidal and contain certain harmonics which can be seen with ease in frequency domain. It is needless to say that harmonics have some detrimental effects on ...
... the inverter constant. The output waveforms of an ideal inverter should be sinusoidal. However, the waveforms of practical inverters are non-sinusoidal and contain certain harmonics which can be seen with ease in frequency domain. It is needless to say that harmonics have some detrimental effects on ...
Micalastic® insulation for high voltage hydro generators
... serves to control the voltage grading at the transition from the slot portion (grounded) to the end winding, where full voltage is applied during the tests of individual winding elements or the winding ...
... serves to control the voltage grading at the transition from the slot portion (grounded) to the end winding, where full voltage is applied during the tests of individual winding elements or the winding ...
study and performance of single-phase rectifiers with various type of
... A real rectifier characteristically drops part of the input voltage (a voltage drop, for silicon devices, of typically 0.7 volts plus an equivalent resistance, in general non-linear)—and at high frequencies, distorts waveforms in other ways. Unlike an ideal rectifier, it dissipates some power. Half- ...
... A real rectifier characteristically drops part of the input voltage (a voltage drop, for silicon devices, of typically 0.7 volts plus an equivalent resistance, in general non-linear)—and at high frequencies, distorts waveforms in other ways. Unlike an ideal rectifier, it dissipates some power. Half- ...
AN-8024 Applying Fairchild Power Switch (FPS ) FSBH-series to Standby Auxiliary Power Supply
... advantages and disadvantages. In general, DCM provides better switching conditions for the rectifier diodes, since the diodes are operating at zero current just before becoming reverse biased and the reverse recovery loss is minimized. The transformer size can be reduced using DCM because the averag ...
... advantages and disadvantages. In general, DCM provides better switching conditions for the rectifier diodes, since the diodes are operating at zero current just before becoming reverse biased and the reverse recovery loss is minimized. The transformer size can be reduced using DCM because the averag ...
ENERGY CONVERSION ONE
... • A pilot exciter is a small ac generator with permanent magnets mounted on rotor shaft & a 3 phase winding on stator • It produces power for field circuit of exciter, which in turn controls the field circuit of main machine • With pilot exciter on shaft of generator, no external electric power is r ...
... • A pilot exciter is a small ac generator with permanent magnets mounted on rotor shaft & a 3 phase winding on stator • It produces power for field circuit of exciter, which in turn controls the field circuit of main machine • With pilot exciter on shaft of generator, no external electric power is r ...
ABB drives in chemical, oil and gas
... Variable speed drives in chemical, oil and gas The investment in high efficiency, largely maintenance-free, variable speed drives helps to keep costs under control. Higher efficiency and less emissions Energy saving has never been higher on the agenda than today. People have become increasingly awa ...
... Variable speed drives in chemical, oil and gas The investment in high efficiency, largely maintenance-free, variable speed drives helps to keep costs under control. Higher efficiency and less emissions Energy saving has never been higher on the agenda than today. People have become increasingly awa ...
New Concept for High Voltage – Modular Multilevel Converter PESC
... Therefore, the same hardware with the same mechanical construction will be used for a wide range of applications. Referring to the previous chapters A and B, further investigations have shown that the diode clamped-type and the capacitor clamped-type cannot meet these requirements. The mechanical co ...
... Therefore, the same hardware with the same mechanical construction will be used for a wide range of applications. Referring to the previous chapters A and B, further investigations have shown that the diode clamped-type and the capacitor clamped-type cannot meet these requirements. The mechanical co ...
EG/PH 305
... Slowly turn the supply voltage up until the galvanometer needle is fully deflected (i.e., reading "40"). From the voltage reading on the Fluke at this point, compute the current i fs that is flowing through the galvanometer. As you now reduce the voltage back down to 0, check that the galvanometer r ...
... Slowly turn the supply voltage up until the galvanometer needle is fully deflected (i.e., reading "40"). From the voltage reading on the Fluke at this point, compute the current i fs that is flowing through the galvanometer. As you now reduce the voltage back down to 0, check that the galvanometer r ...
CLASSROOM CHALLENGE HARDWARE HACKING AND ROBOTICS USING THE RASPBERRY PI
... By completing this activity you will be able to connect components to the Raspberry Pi to build a simple robotic buggy and to program it to move using Scratch. In order to protect the Raspberry Pi from the higher voltages required to operate the motors of the robotic buggy, you will connect an inter ...
... By completing this activity you will be able to connect components to the Raspberry Pi to build a simple robotic buggy and to program it to move using Scratch. In order to protect the Raspberry Pi from the higher voltages required to operate the motors of the robotic buggy, you will connect an inter ...
IPoD coil
... The xIPoD is the set-up and control software for the IPoD. 2 essential qualities set it apart: a simple intuitive display and an elaborate settings interface with numerous features. Depending on the type of IPoD used, only the relevant parameters are displayed. Previously saved set-ups can also be r ...
... The xIPoD is the set-up and control software for the IPoD. 2 essential qualities set it apart: a simple intuitive display and an elaborate settings interface with numerous features. Depending on the type of IPoD used, only the relevant parameters are displayed. Previously saved set-ups can also be r ...
Panasonic B Series AC Servo Motor Driver Manual
... ♦ During the power is ON, keep away from the motor and the machine driven by the motor to provide against malfunction. ♦ When not in use for a long time, turn OFF the power supply. ♦ When alarm is output, remove the cause and then restart. If restarted without removing the cause, the motor may unexp ...
... ♦ During the power is ON, keep away from the motor and the machine driven by the motor to provide against malfunction. ♦ When not in use for a long time, turn OFF the power supply. ♦ When alarm is output, remove the cause and then restart. If restarted without removing the cause, the motor may unexp ...
Stepper motor
A stepper motor or step motor or stepping motor is a brushless DC electric motor that divides a full rotation into a number of equal steps. The motor's position can then be commanded to move and hold at one of these steps without any feedback sensor (an open-loop controller), as long as the motor is carefully sized to the application in respect to torque and speed.Switched reluctance motors are very large stepping motors with a reduced pole count, and generally are closed-loop commutated.