Aug 2014 - Pump Ed 101
... less than 10% higher than the average current it will probably operate safely. A less desirable alternative is to derate the motor’s nameplate horsepower. NEMA suggests derating horsepower to 75% of nameplate at an unbalance of 5%. At 4% unbalance it is derated to 82%, at 3% it is derated to 88% and ...
... less than 10% higher than the average current it will probably operate safely. A less desirable alternative is to derate the motor’s nameplate horsepower. NEMA suggests derating horsepower to 75% of nameplate at an unbalance of 5%. At 4% unbalance it is derated to 82%, at 3% it is derated to 88% and ...
Measurement of Loss in High-Frequency Reactors
... capability is required not only for amplitude (gain), but the measurement, while Table 1 lists the specifications also for the phase difference between voltage and cur- of the reactor under measurement. Measurement was rent. To measure a high-frequency current in excess of performed while applying a ...
... capability is required not only for amplitude (gain), but the measurement, while Table 1 lists the specifications also for the phase difference between voltage and cur- of the reactor under measurement. Measurement was rent. To measure a high-frequency current in excess of performed while applying a ...
cathode-ray display of complex quantities at varying
... oscillator Ov inevitably varies rather considerably', frequency fm, the intermediate frequency. with the frequency fv. This being so, it has been From the test object X two voltages VI and V2 arranged that the buffer circuits deliver a voltage " . are obtained that are in phase with and proportional ...
... oscillator Ov inevitably varies rather considerably', frequency fm, the intermediate frequency. with the frequency fv. This being so, it has been From the test object X two voltages VI and V2 arranged that the buffer circuits deliver a voltage " . are obtained that are in phase with and proportional ...
optimal location of voltage regulators in radial distribution
... analytical tools such as optimal power flow, voltage stability, failure indicators analysis etc, and by the installation of devices such as fixed and controlled capacitors banks, automatic voltage regulators and transformers with on-load tap changers, [2]-[3]. The use of new devices is constrained b ...
... analytical tools such as optimal power flow, voltage stability, failure indicators analysis etc, and by the installation of devices such as fixed and controlled capacitors banks, automatic voltage regulators and transformers with on-load tap changers, [2]-[3]. The use of new devices is constrained b ...
Lecture 9 – Phys 272 Currents, EMF (voltage
... Here we discuss “sources of electromotive force”, such as batteries, electric generators and solar cells, and we consider how they behave in a closed circuit. Below is an analogy between basketball and current in a closed circuit. The player does work to move the ball up and the ball loses energy in ...
... Here we discuss “sources of electromotive force”, such as batteries, electric generators and solar cells, and we consider how they behave in a closed circuit. Below is an analogy between basketball and current in a closed circuit. The player does work to move the ball up and the ball loses energy in ...
RURD660S9A_F085 Ultrafast Power Rectifier, 6A 600V RURD660S9A_F085 Ultrafas Features
... • Low Forward Voltage( VF=1.26V(Typ.) @ IF=6A ) • Avalanche Energy Rated • AEC-Q101 Qualified ...
... • Low Forward Voltage( VF=1.26V(Typ.) @ IF=6A ) • Avalanche Energy Rated • AEC-Q101 Qualified ...
PSpice Orcad Release 9.2 Tutorial Part II
... We will follow the procedures we have used in the Tutorial Part 1. Select Start > Programs > Orcad Family Release 9.2 Lite Edition > Capture Lite Edition. This will launch the Capture application. Then select File > New > Project to start a new project. You should now configure the application so th ...
... We will follow the procedures we have used in the Tutorial Part 1. Select Start > Programs > Orcad Family Release 9.2 Lite Edition > Capture Lite Edition. This will launch the Capture application. Then select File > New > Project to start a new project. You should now configure the application so th ...
IOSR Journal of VLSI and Signal Processing (IOSR-JVSP)
... Voltage required depends upon the frequency at which it is clocked and thus if frequency is trimmed then voltage can be reduced. By this technique 34% of power is saved. The reduction in frequency increases speed, thus a biggest advantage of this technique. It also offers high performance. It is emp ...
... Voltage required depends upon the frequency at which it is clocked and thus if frequency is trimmed then voltage can be reduced. By this technique 34% of power is saved. The reduction in frequency increases speed, thus a biggest advantage of this technique. It also offers high performance. It is emp ...
STN93003
... maintaining the wide RBSOA. The STN93003 is expressly designed for a new solution to be used in compact fluorescent lamps, where it is coupled with the STN83003, its complementary NPN transistor. ...
... maintaining the wide RBSOA. The STN93003 is expressly designed for a new solution to be used in compact fluorescent lamps, where it is coupled with the STN83003, its complementary NPN transistor. ...
Objective
... Meter Design. The lab had you construct an analog meter from a galvanometer and resistors. While the DMM is more complex, the fundamental principles of measurement are the same. Voltage Measurement Voltage is the easiest measurement to make in a circuit, typically with the least impact. The voltage ...
... Meter Design. The lab had you construct an analog meter from a galvanometer and resistors. While the DMM is more complex, the fundamental principles of measurement are the same. Voltage Measurement Voltage is the easiest measurement to make in a circuit, typically with the least impact. The voltage ...
7. Electric Currents
... cases these are electrons. A conductor is a material through which an electric charge can move easily. Metals are condutors, copper being the most commonly used to make electrical wires. Consider electrons moving through a copper wire. Even in a good conductor like copper they will encounter many ob ...
... cases these are electrons. A conductor is a material through which an electric charge can move easily. Metals are condutors, copper being the most commonly used to make electrical wires. Consider electrons moving through a copper wire. Even in a good conductor like copper they will encounter many ob ...
MAX1044/ICL7660 - Switched-Capacitor Voltage Converters
... terminal of C1 to ground and shifts the negative terminal to VOUT. This connects C1 in parallel with the reservoir capacitor C2. If the voltage across C2 is smaller than the voltage across C1, then charge flows from C1 to C2 until the voltages across them are equal. During successive cycles, C1 will ...
... terminal of C1 to ground and shifts the negative terminal to VOUT. This connects C1 in parallel with the reservoir capacitor C2. If the voltage across C2 is smaller than the voltage across C1, then charge flows from C1 to C2 until the voltages across them are equal. During successive cycles, C1 will ...
E92502 - ijarest
... Multistage Impulse Voltage generator is used in high power equipment testing and also in the experimental transmission line and aviation object’s. The basic principle of the Multistage impulse voltage generator is the charging x number of capacitors in parallel & discharge them in series stack. MIVG ...
... Multistage Impulse Voltage generator is used in high power equipment testing and also in the experimental transmission line and aviation object’s. The basic principle of the Multistage impulse voltage generator is the charging x number of capacitors in parallel & discharge them in series stack. MIVG ...
technical information
... from the output of the half-bridge is supplied to the processor via FDBKN1. Additional feedback information to account for ground bounce is supplied via GNDKELVIN1. The MOSFET drivers in the TA0103A are operated from voltages obtained from VN12 and LO1COM for the low-side driver, and VBOOT (generate ...
... from the output of the half-bridge is supplied to the processor via FDBKN1. Additional feedback information to account for ground bounce is supplied via GNDKELVIN1. The MOSFET drivers in the TA0103A are operated from voltages obtained from VN12 and LO1COM for the low-side driver, and VBOOT (generate ...
. .OR How To Protect your 3-Phase Equipment Investment
... All Time Mark 3-phase monitors are adjustable through a wide range to allow for actual voltage or unbalance conditions. Adjustment of the monitor can be made by several methods. The simplest of these, and the one most commonly used, is to adjust the unit after it is installed, but not yet connected ...
... All Time Mark 3-phase monitors are adjustable through a wide range to allow for actual voltage or unbalance conditions. Adjustment of the monitor can be made by several methods. The simplest of these, and the one most commonly used, is to adjust the unit after it is installed, but not yet connected ...
7TH CLASSES PHYSICS DAILY PLAN
... REAL LIFE: functions of resistors in an electric circuit PRESENTATION: The Measurement of Potential Difference, Current and Resistance: In a circuit, a potential difference can be measured by using an instrument called Voltmeter. A voltmeter is connected so that it must be placed in parallel with th ...
... REAL LIFE: functions of resistors in an electric circuit PRESENTATION: The Measurement of Potential Difference, Current and Resistance: In a circuit, a potential difference can be measured by using an instrument called Voltmeter. A voltmeter is connected so that it must be placed in parallel with th ...
Power electronics
Power electronics is the application of solid-state electronics to the control and conversion of electric power. It also refers to a subject of research in electronic and electrical engineering which deals with the design, control, computation and integration of nonlinear, time-varying energy-processing electronic systems with fast dynamics.The first high power electronic devices were mercury-arc valves. In modern systems the conversion is performed with semiconductor switching devices such as diodes, thyristors and transistors, pioneered by R. D. Middlebrook and others beginning in the 1950s. In contrast to electronic systems concerned with transmission and processing of signals and data, in power electronics substantial amounts of electrical energy are processed. An AC/DC converter (rectifier) is the most typical power electronics device found in many consumer electronic devices, e.g. television sets, personal computers, battery chargers, etc. The power range is typically from tens of watts to several hundred watts. In industry a common application is the variable speed drive (VSD) that is used to control an induction motor. The power range of VSDs start from a few hundred watts and end at tens of megawatts.The power conversion systems can be classified according to the type of the input and output power AC to DC (rectifier) DC to AC (inverter) DC to DC (DC-to-DC converter) AC to AC (AC-to-AC converter)