Position Sensorless Control Based on Coordinate Transformation
... components, one is the back EMF caused by the PM excitation field, which can reflect the rotor position accurately, and the other is the reaction EMF due to the armature reaction field, which is usually only around 10%–20% of the magnitude of the open-circuit field [21] and may distort the motor air ...
... components, one is the back EMF caused by the PM excitation field, which can reflect the rotor position accurately, and the other is the reaction EMF due to the armature reaction field, which is usually only around 10%–20% of the magnitude of the open-circuit field [21] and may distort the motor air ...
The Triode Board
... Grid current is detected across R1 (page 30). In order to operate the sensing circuit (details below) the maximum voltage drop across R1 needs to be about 0.8V. Therefore the over-current protection for the meter M1 requires two silicon diodes in series, D3 and D4, to prevent incorrect grid current ...
... Grid current is detected across R1 (page 30). In order to operate the sensing circuit (details below) the maximum voltage drop across R1 needs to be about 0.8V. Therefore the over-current protection for the meter M1 requires two silicon diodes in series, D3 and D4, to prevent incorrect grid current ...
A motor control center
... A small motor can be started by simply plugging it into an electrical receptacle or by using a switch or circuit breaker. A larger motor requires a specialized switching unit called a motor starter or motor contactor. When energized, a direct on line (DOL) starter immediately connects the motor term ...
... A small motor can be started by simply plugging it into an electrical receptacle or by using a switch or circuit breaker. A larger motor requires a specialized switching unit called a motor starter or motor contactor. When energized, a direct on line (DOL) starter immediately connects the motor term ...
Eaton 9E
... The terminal block on the back of the UPS also implements the R.E.P.O. (Remote Emergency Power Off) function that can be used to shut off the UPS remotely in case of an emergency. For installation, connect to the device's normally open contact . In case of an emergency, if the stop device is used, t ...
... The terminal block on the back of the UPS also implements the R.E.P.O. (Remote Emergency Power Off) function that can be used to shut off the UPS remotely in case of an emergency. For installation, connect to the device's normally open contact . In case of an emergency, if the stop device is used, t ...
ABWR 8.2 Offsite Power Systems 8.2.1 Description
... The location of the main power transformer, unit auxiliary transformers, and reserve auxiliary transformers are shown on Figure 8.2-1. The reserve auxiliary transformers are separated from the main power and unit auxiliary transformers by a minimum distance of 15.24 m. It is a requirement that the 1 ...
... The location of the main power transformer, unit auxiliary transformers, and reserve auxiliary transformers are shown on Figure 8.2-1. The reserve auxiliary transformers are separated from the main power and unit auxiliary transformers by a minimum distance of 15.24 m. It is a requirement that the 1 ...
TCM320 - Wavelength Electronics
... • Accuracy ± 1.0°C • Protection from reverse supply operation ...
... • Accuracy ± 1.0°C • Protection from reverse supply operation ...
62-0389—05 - Class 2000 Meter - E-Mon
... a. To ensure a safe installation, the Class 2000 meter requires an external switch mechanism, such as a circuit breaker, be installed on the Class 2000 MAINS input wiring. The switch mechanism must be installed in close proximity to the meter and easily reachable for the operator. This device must a ...
... a. To ensure a safe installation, the Class 2000 meter requires an external switch mechanism, such as a circuit breaker, be installed on the Class 2000 MAINS input wiring. The switch mechanism must be installed in close proximity to the meter and easily reachable for the operator. This device must a ...
Effects of the circulating sheath currents in the magnetic field
... The raising environmental pressure is creating new markets for the power transmission systems based on very high voltage XLPE-isolated cables. Nowadays XLPE-cables are being applied up to 500 kV. In many countries high voltage overhead power lines are not allowed in large cities which are densely po ...
... The raising environmental pressure is creating new markets for the power transmission systems based on very high voltage XLPE-isolated cables. Nowadays XLPE-cables are being applied up to 500 kV. In many countries high voltage overhead power lines are not allowed in large cities which are densely po ...
MN225014EN/ Old S225-10-10PSVR
... Eaton's pad-mounted voltage regulators are suitable for three- or four-wire underground systems. The 2-in-1 and 3-in-1 configurations consist of two or three single-phase voltage regulators in a single tank. A bypass module is available for the single-phase configuration only. Eaton voltage regulato ...
... Eaton's pad-mounted voltage regulators are suitable for three- or four-wire underground systems. The 2-in-1 and 3-in-1 configurations consist of two or three single-phase voltage regulators in a single tank. A bypass module is available for the single-phase configuration only. Eaton voltage regulato ...
MATHSmanual2013.
... FALL controls determine how fast or slow the circuit will respond to signals applied to the Signal IN and Trigger IN. The range of times is larger than the typical Envelope or LFO. MATHS will create functions as slow as 25 minutes (Rise and Fall full CW and external control signals added to go into ...
... FALL controls determine how fast or slow the circuit will respond to signals applied to the Signal IN and Trigger IN. The range of times is larger than the typical Envelope or LFO. MATHS will create functions as slow as 25 minutes (Rise and Fall full CW and external control signals added to go into ...
98 Series Brochure
... information over analog tone lines or point to point fiber optics. All modules are microprocessor controlled, and frequency shift keyed (FSK) modules utilize digital signal processing (DSP) for frequency stability. The 98 Series has a modular design, allowing for a variety of analog and digital appl ...
... information over analog tone lines or point to point fiber optics. All modules are microprocessor controlled, and frequency shift keyed (FSK) modules utilize digital signal processing (DSP) for frequency stability. The 98 Series has a modular design, allowing for a variety of analog and digital appl ...
Introdução - Portal de Periódicos da UEM
... obtained by capacitance variation and/or module source voltage, which influences directly the internal capacitors charge voltage. For each operation condition the sparking limit was determined. The judgment for establish the sparking limit was one fail at each 50 sparks. Operation conditions with s ...
... obtained by capacitance variation and/or module source voltage, which influences directly the internal capacitors charge voltage. For each operation condition the sparking limit was determined. The judgment for establish the sparking limit was one fail at each 50 sparks. Operation conditions with s ...
MAX1246/MAX1247 +2.7V, Low-Power, 4-Channel, Serial 12-Bit ADCs in QSOP-16 General Description
... track/hold, and serial interface with high conversion speed and low power consumption. The MAX1246 operates from a single +2.7V to +3.6V supply; the MAX1247 operates from a single +2.7V to +5.25V supply. Both devices’ analog inputs are software configurable for unipolar/bipolar and single-ended/diff ...
... track/hold, and serial interface with high conversion speed and low power consumption. The MAX1246 operates from a single +2.7V to +3.6V supply; the MAX1247 operates from a single +2.7V to +5.25V supply. Both devices’ analog inputs are software configurable for unipolar/bipolar and single-ended/diff ...
Notes
... Faraday, Lenz: wire moving in magnetic field has induced current Gauss et al.: capacitance Situations to examine: Coupling between two adjacent wires Mutual capacitance between adjacent circuits …etc. ...
... Faraday, Lenz: wire moving in magnetic field has induced current Gauss et al.: capacitance Situations to examine: Coupling between two adjacent wires Mutual capacitance between adjacent circuits …etc. ...
Standards for Engine-Starting Capacitors
... standard at 120 Hz, which measures internal energy dissipation during normal operation. The ESR may be useful and used to calculate the maximum instantaneous power a capacitor can provide. The df parameter is of little use in the engine cranking application since it is not a single frequency periodi ...
... standard at 120 Hz, which measures internal energy dissipation during normal operation. The ESR may be useful and used to calculate the maximum instantaneous power a capacitor can provide. The df parameter is of little use in the engine cranking application since it is not a single frequency periodi ...
Profile Control Experiments in JET using Off
... peak of the main lobe in the n||-spectrum can be varied between 1.4 and 2.3 by varying the phase difference between adjacent multijunctions. The majority of the LHCD experiments, and all the results presented in this paper, have been carried out with 0° phasing between multijunctions, which gives a ...
... peak of the main lobe in the n||-spectrum can be varied between 1.4 and 2.3 by varying the phase difference between adjacent multijunctions. The majority of the LHCD experiments, and all the results presented in this paper, have been carried out with 0° phasing between multijunctions, which gives a ...
AT10.1 SERIES CHARGERS AT10.1 SERIES CHARGERS
... markings on: A) this equipment, B) battery, and C) any other equipment to be used in conjunction with this equipment. ...
... markings on: A) this equipment, B) battery, and C) any other equipment to be used in conjunction with this equipment. ...
UNIT – 5 Explain the different starting methods for 3
... (ii) Stator resistance starting (iii) Autotransformer starting (iv) Star-delta starting (v) Rotor resistance starting Methods (i) to (iv) are applicable to both squirrel-cage and slip ring motors. However, method (v) is applicable only to slip ring motors. In practice, any one of the first four meth ...
... (ii) Stator resistance starting (iii) Autotransformer starting (iv) Star-delta starting (v) Rotor resistance starting Methods (i) to (iv) are applicable to both squirrel-cage and slip ring motors. However, method (v) is applicable only to slip ring motors. In practice, any one of the first four meth ...
Buck converter
A buck converter is a voltage step down and current step up converter.The simplest way to reduce the voltage of a DC supply is to use a linear regulator (such as a 7805), but linear regulators waste energy as they operate by dissipating excess power as heat. Buck converters, on the other hand, can be remarkably efficient (95% or higher for integrated circuits), making them useful for tasks such as converting the main voltage in a computer (12V in a desktop, 12-24V in a laptop) down to the 0.8-1.8V needed by the processor.