Control of Self Excited Induction Generator using ANN based SVC
... SVC are widely used in power systems for several applications [6]. They are mainly used in voltage control purposes and in stability problem solutions. They are used for solving machine operation problems such as induction motor starting and induction motor short circuit problems solutions [7-11]. R ...
... SVC are widely used in power systems for several applications [6]. They are mainly used in voltage control purposes and in stability problem solutions. They are used for solving machine operation problems such as induction motor starting and induction motor short circuit problems solutions [7-11]. R ...
Notes on Rebuilding an SB
... approach can be very reliable if the resistors and relay are selected carefully. After a twosecond delay, two 15 Ohm, 5 Watt resistors in parallel in each leg of the incoming AC are removed, using a double-pole, 20 Amp relay. The component values allow the simple, 28-Volt delay circuit to operate pr ...
... approach can be very reliable if the resistors and relay are selected carefully. After a twosecond delay, two 15 Ohm, 5 Watt resistors in parallel in each leg of the incoming AC are removed, using a double-pole, 20 Amp relay. The component values allow the simple, 28-Volt delay circuit to operate pr ...
5. AUXILIARY SERVICES VOLTAGE TRANSFORMERS
... its primary and secondary windings around it. The primary conductor is enclosed by a capacitive bushing consisting of shields and layers of insulating paper impregnated in oil. In order to control oil level changes, they are fitted with metallic bellows. Voltage transformers for auxiliary services wi ...
... its primary and secondary windings around it. The primary conductor is enclosed by a capacitive bushing consisting of shields and layers of insulating paper impregnated in oil. In order to control oil level changes, they are fitted with metallic bellows. Voltage transformers for auxiliary services wi ...
6.0 Voltage Regulators
... into two categories, linear and switching regulator. • There are two types of linear regulator, series and shunt regulator. • The popular voltage regulator IC is three terminal +ve and –ve which can be fixed and adjustable. • Switching regulators are also widely used. ...
... into two categories, linear and switching regulator. • There are two types of linear regulator, series and shunt regulator. • The popular voltage regulator IC is three terminal +ve and –ve which can be fixed and adjustable. • Switching regulators are also widely used. ...
4. Electrical characteristics
... The tolerance on the rated power of the capacitor bank is : 0/+10%, Capacitance variation according to temperature is : -3,5.10-4/°C. 4.1 Acceptable overcurrent and overvoltage CP 253 SAH capacitor banks are designed for: - 1,10 x Un overvoltage - 12 hours per day, - 1,15 x Un power frequency overvo ...
... The tolerance on the rated power of the capacitor bank is : 0/+10%, Capacitance variation according to temperature is : -3,5.10-4/°C. 4.1 Acceptable overcurrent and overvoltage CP 253 SAH capacitor banks are designed for: - 1,10 x Un overvoltage - 12 hours per day, - 1,15 x Un power frequency overvo ...
Resistivity-induced Polarization Receiver/Transmitter Design and
... Geophysics engineering, which studies the issues of identifying and examining the locations of mines, minerals, fuel, natural gas, or water underground has specific research and measuring methods. The methods used in this engineering area are seismic, gravity, electrical-electro-magnetic, magnetic, ...
... Geophysics engineering, which studies the issues of identifying and examining the locations of mines, minerals, fuel, natural gas, or water underground has specific research and measuring methods. The methods used in this engineering area are seismic, gravity, electrical-electro-magnetic, magnetic, ...
Lab 1 Basic Instrumentation and Measurements
... 1. Examine the i-v curve for the #47 lamp that you plotted for the lamp. Calculate the resistance of the lamp, using Ohm’ law, at these voltages: 1.3, 2.3, 3.3, 4.3, 5.3 and 6 volts. Put the results in tabular form. 2. Connect the two DOM leads across leads of the lamp. Record the resistance of the ...
... 1. Examine the i-v curve for the #47 lamp that you plotted for the lamp. Calculate the resistance of the lamp, using Ohm’ law, at these voltages: 1.3, 2.3, 3.3, 4.3, 5.3 and 6 volts. Put the results in tabular form. 2. Connect the two DOM leads across leads of the lamp. Record the resistance of the ...
MODEL 2681 Voltage Band Monitor
... The Model 2681 Voltage Band Monitor is a dual set-point voltage monitor. Input voltages between the upper and lower set-points will cause the output contacts to pull in (contacts 1 & 3 closed) and the LED indicator to illuminate. Input voltages above or below the set-points will cause the output con ...
... The Model 2681 Voltage Band Monitor is a dual set-point voltage monitor. Input voltages between the upper and lower set-points will cause the output contacts to pull in (contacts 1 & 3 closed) and the LED indicator to illuminate. Input voltages above or below the set-points will cause the output con ...
050 Electronic Tuning Fork Example Project
... I added them to the protoboard, connected the battery, pressed the trigger switch and was greeted by a horrid high frequency squeal from the speaker. This was not what I was expecting!!! I checked my circuit and retested it, but the output from the speaker was the same. I asked my supervisor if he h ...
... I added them to the protoboard, connected the battery, pressed the trigger switch and was greeted by a horrid high frequency squeal from the speaker. This was not what I was expecting!!! I checked my circuit and retested it, but the output from the speaker was the same. I asked my supervisor if he h ...
No Slide Title
... After we know how to convert RLC components from time to phasor domain, we can transform a time domain circuit into a phasor/frequency domain circuit. Hence, we can apply the KCL laws and other theorems to directly set up phasor equations involving our target variable(s) for solving. Next we f ...
... After we know how to convert RLC components from time to phasor domain, we can transform a time domain circuit into a phasor/frequency domain circuit. Hence, we can apply the KCL laws and other theorems to directly set up phasor equations involving our target variable(s) for solving. Next we f ...
Voltage Transformers
... voltage winding is connected to a high-voltage alternating-current circuit, the use of a voltage transformer (sometimes called a potential transformer) is necessary. It is not practicable to wind the voltage coil of a meter for direct connection to, say, an 11,000volt supply, because the space avail ...
... voltage winding is connected to a high-voltage alternating-current circuit, the use of a voltage transformer (sometimes called a potential transformer) is necessary. It is not practicable to wind the voltage coil of a meter for direct connection to, say, an 11,000volt supply, because the space avail ...
Purchasing your Aerovox Capacitor cells from ARCO today…
... Harmonic Distortion Harmonic distortion is the resulting non-sinusoidal current waveform generated by a non-linear load. The most common non-linear load is a pulse rectifier, which is used in most switch mode power supplies, variable speed drives and uninterruptible power supplies. The distorted cur ...
... Harmonic Distortion Harmonic distortion is the resulting non-sinusoidal current waveform generated by a non-linear load. The most common non-linear load is a pulse rectifier, which is used in most switch mode power supplies, variable speed drives and uninterruptible power supplies. The distorted cur ...
Chapter 4
... The factor ωL has the same units as resistance and is related to current and voltage in the same way as resistance Because ωL depends on the frequency, it reacts differently, in terms of offering resistance to current, for different frequencies The factor is the inductive reactance and is given by: ...
... The factor ωL has the same units as resistance and is related to current and voltage in the same way as resistance Because ωL depends on the frequency, it reacts differently, in terms of offering resistance to current, for different frequencies The factor is the inductive reactance and is given by: ...
Principles of Electronic Communication Systems
... The capacitance of varactor diode D1 and L1 form the parallel tuned circuit of the oscillator. The value of C1 is made very large so its reactance is very low. C1 connects the tuned circuit to the oscillator and blocks the DC bias on the base of Q1. The values of L1 and D1 fix the center carrier fre ...
... The capacitance of varactor diode D1 and L1 form the parallel tuned circuit of the oscillator. The value of C1 is made very large so its reactance is very low. C1 connects the tuned circuit to the oscillator and blocks the DC bias on the base of Q1. The values of L1 and D1 fix the center carrier fre ...
SiGe W-CDMA Transmitter for Mobile Terminal Application , Member, IEEE Victoria Pereira
... and power-supply independent reference current to the nFET (N5–N8) current sources. A combination of n-p-ns and field-effect transistors (FETs) are used to enhance and optimize noise and linearity performance for low current consumption. The mixers’ outputs are summed via two resistors (R1–R2). The ...
... and power-supply independent reference current to the nFET (N5–N8) current sources. A combination of n-p-ns and field-effect transistors (FETs) are used to enhance and optimize noise and linearity performance for low current consumption. The mixers’ outputs are summed via two resistors (R1–R2). The ...
simulation results - Indico - Variable Energy Cyclotron Centre
... both higher voltage and higher switching frequency leads to replacement of more traditional power system based on vacuum tubes (tetrodes). Some standard power supply techniques are compared and improvement by introducing the PSM technique is also discussed in [1]. The advantages of PSM technique are ...
... both higher voltage and higher switching frequency leads to replacement of more traditional power system based on vacuum tubes (tetrodes). Some standard power supply techniques are compared and improvement by introducing the PSM technique is also discussed in [1]. The advantages of PSM technique are ...
HVAC - Relays Relays Capacitors
... specified capacitor size. However a plus or minus 10 % rule of thumb applies to the microfarad rating when changing out a capacitor. If necessary, the replacement capacitor voltage rating can be higher than specified, but not lower without effecting the capacitor life. • Always replace the run capac ...
... specified capacitor size. However a plus or minus 10 % rule of thumb applies to the microfarad rating when changing out a capacitor. If necessary, the replacement capacitor voltage rating can be higher than specified, but not lower without effecting the capacitor life. • Always replace the run capac ...
Low-ESL Multilayer Ceramic Capacitors
... general-purpose products mounted in parallel can be achieved, a reduction in the number of parts or mounting space will ...
... general-purpose products mounted in parallel can be achieved, a reduction in the number of parts or mounting space will ...
resistor combinations
... • This is most useful when we require higher power handling, but don't want to go out and buy more expensive (and physically larger) resistors. P=V*I ...
... • This is most useful when we require higher power handling, but don't want to go out and buy more expensive (and physically larger) resistors. P=V*I ...
Spark-gap transmitter
A spark-gap transmitter is a device that generates radio frequency electromagnetic waves using a spark gap.Spark gap transmitters were the first devices to demonstrate practical radio transmission, and were the standard technology for the first three decades of radio (1887–1916). Later, more efficient transmitters were developed based on rotary machines like the high-speed Alexanderson alternators and the static Poulsen Arc generators.Most operators, however, still preferred spark transmitters because of their uncomplicated design and because the carrier stopped when the telegraph key was released, which let the operator ""listen through"" for a reply. With other types of transmitter, the carrier could not be controlled so easily, and they required elaborate measures to modulate the carrier and to prevent transmitter leakage from de-sensitizing the receiver. After WWI, greatly improved transmitters based on vacuum tubes became available, which overcame these problems, and by the late 1920s the only spark transmitters still in regular operation were ""legacy"" installations on naval vessels. Even when vacuum tube based transmitters had been installed, many vessels retained their crude but reliable spark transmitters as an emergency backup. However, by 1940, the technology was no longer used for communication. Use of the spark-gap transmitter led to many radio operators being nicknamed ""Sparks"" long after they ceased using spark transmitters. Even today, the German verb funken, literally, ""to spark,"" also means ""to send a radio message or signal.""