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AC DISTRIBUTION
AC Distribution Calculations: AC Distribution Calculations differ from those of d.c. distribution in the following respects : In case of d.c. system, the voltage drop is due to resistance alone.INDUCTION MACHINE
Deep Bar Rotor: Deep Bar Rotor – The chief advantage of the slip-ring induction motor compared to the squirrel-cage one lies in the fact that while its rotor is designed with low resistance to give good running performance (high efficiency, low slip, etc.), excellent starting characteristic (low starting current, high starting torque, etc.) is simply achieved VARIABLE LOAD ON POWER STATION Selection of Power Generation Unit in Load Curve: The load on a Power Generation Unit is seldom constant; it varies from time to time. Obviously, a single generating unit (i.e., alternator) will not be an economical proposition to meet this varying load.CIRCUIT ELEMENTS
Current Definition: Current Definition states that there are free electrons available in all semiconductive and conductive materials. These free electrons move at random in all directions within the structure in the absence of external pressure or voltage. CONTROL OF ELECTRIC MOTORS Current Source Inverter Fed Induction Motor Drive: Current Source Inverter Fed Induction Motor Drive – In a voltage source inverter fed induction motor the applied voltage to the stator is proportional to the frequency, with a correction for the stator resistance drop, FABRICATION OF INTEGRATED CIRCUITS Lithography Process: Lithography Process is used to produce a multiple image on the resists which covers the wafer. A lithographic process can be realised with the help of three sub processes given by, Deposit of the resist, Imaging of the wafer, and Etching of the oxide.DATA ACQUISITION
Multi Channel Data Acquisition System: The Multi Channel Data Acquisition System can be time shared by two or more input sources. Depending on the desired properties of the multiplexed system, a number of techniques are employed for such time shared measurements. CHARACTERISTICS OF ELECTRIC MOTORS Characteristics of DC Motor: DC Motors are of the rotating armature type. The armature winding is a closed winding through the commutator. The armature is supplied through the brushes which are placed along the neutral axis on the commutator. INDUCTION MOTOR DRIVES Harmonic Equivalent Circuit of Induction Motor: When fed from an inverter or cycloconverter, the motor terminal voltage is non-sinusoidal but it has half-wave symmetry. A non-sinusoidal waveform can be resolved into fundamental and harmonic components using Fourier analysis. Because of half-wave symmetry only odd harmonics will be present. RECORDERS | EEEGUIDE Definition of Recorder: Definition of Recorder – A recorder is a measuring instrument that displays a time-varying signal in a form easy to examine, even after the original signal has ceased to exist.AC DISTRIBUTION
AC Distribution Calculations: AC Distribution Calculations differ from those of d.c. distribution in the following respects : In case of d.c. system, the voltage drop is due to resistance alone.INDUCTION MACHINE
Deep Bar Rotor: Deep Bar Rotor – The chief advantage of the slip-ring induction motor compared to the squirrel-cage one lies in the fact that while its rotor is designed with low resistance to give good running performance (high efficiency, low slip, etc.), excellent starting characteristic (low starting current, high starting torque, etc.) is simply achieved VARIABLE LOAD ON POWER STATION Selection of Power Generation Unit in Load Curve: The load on a Power Generation Unit is seldom constant; it varies from time to time. Obviously, a single generating unit (i.e., alternator) will not be an economical proposition to meet this varying load.CIRCUIT ELEMENTS
Current Definition: Current Definition states that there are free electrons available in all semiconductive and conductive materials. These free electrons move at random in all directions within the structure in the absence of external pressure or voltage. CONTROL OF ELECTRIC MOTORS Current Source Inverter Fed Induction Motor Drive: Current Source Inverter Fed Induction Motor Drive – In a voltage source inverter fed induction motor the applied voltage to the stator is proportional to the frequency, with a correction for the stator resistance drop, FABRICATION OF INTEGRATED CIRCUITS Lithography Process: Lithography Process is used to produce a multiple image on the resists which covers the wafer. A lithographic process can be realised with the help of three sub processes given by, Deposit of the resist, Imaging of the wafer, and Etching of the oxide.DATA ACQUISITION
Multi Channel Data Acquisition System: The Multi Channel Data Acquisition System can be time shared by two or more input sources. Depending on the desired properties of the multiplexed system, a number of techniques are employed for such time shared measurements. CHARACTERISTICS OF ELECTRIC MOTORS Characteristics of DC Motor: DC Motors are of the rotating armature type. The armature winding is a closed winding through the commutator. The armature is supplied through the brushes which are placed along the neutral axis on the commutator. INDUCTION MOTOR DRIVES Harmonic Equivalent Circuit of Induction Motor: When fed from an inverter or cycloconverter, the motor terminal voltage is non-sinusoidal but it has half-wave symmetry. A non-sinusoidal waveform can be resolved into fundamental and harmonic components using Fourier analysis. Because of half-wave symmetry only odd harmonics will be present. RECORDERS | EEEGUIDE Definition of Recorder: Definition of Recorder – A recorder is a measuring instrument that displays a time-varying signal in a form easy to examine, even after the original signal has ceased to exist. INDUCTION MOTOR DRIVES Harmonic Equivalent Circuit of Induction Motor: When fed from an inverter or cycloconverter, the motor terminal voltage is non-sinusoidal but it has half-wave symmetry. A non-sinusoidal waveform can be resolved into fundamental and harmonic components using Fourier analysis. Because of half-wave symmetry only odd harmonics will be present. RECORDERS | EEEGUIDE Definition of Recorder: Definition of Recorder – A recorder is a measuring instrument that displays a time-varying signal in a form easy to examine, even after the original signal has ceased to exist. CONTROL OF ELECTRIC MOTORS Current Source Inverter Fed Induction Motor Drive: Current Source Inverter Fed Induction Motor Drive – In a voltage source inverter fed induction motor the applied voltage to the stator is proportional to the frequency, with a correction for the stator resistance drop,WWW.EEEGUIDE.COM
www.eeeguide.com
INDUCTION MOTOR DRIVES Harmonic Equivalent Circuit of Induction Motor: When fed from an inverter or cycloconverter, the motor terminal voltage is non-sinusoidal but it has half-wave symmetry. A non-sinusoidal waveform can be resolved into fundamental and harmonic components using Fourier analysis. Because of half-wave symmetry only odd harmonics will be present.INDUCTION MACHINE
Deep Bar Rotor: Deep Bar Rotor – The chief advantage of the slip-ring induction motor compared to the squirrel-cage one lies in the fact that while its rotor is designed with low resistance to give good running performance (high efficiency, low slip, etc.), excellent starting characteristic (low starting current, high starting torque, etc.) is simply achievedAC DISTRIBUTION
AC Distribution Calculations: AC Distribution Calculations differ from those of d.c. distribution in the following respects : In case of d.c. system, the voltage drop is due to resistance alone.CIRCUIT ELEMENTS
Circuit Elements which includes Electric Voltage,Current Definition,Power and Energy Formula,SI Unit of Electrical Resistance,Voltage Source and CurrentDYNAMIC ELECTRIC
Dynamic Electric: Dynamic Electric – An industrial drive system basically consists of a mechanical working equipment or load, which has to be kept in motion to turn out mechanical work, equipment to do this job, called the prime mover, and a transmission to transfer energy from the prime mover to the mechanical load.Transmission equipment such as a gearing or belt may be used to match CONTROL OF ELECTRIC MOTORS Current Source Inverter Fed Induction Motor Drive: Current Source Inverter Fed Induction Motor Drive – In a voltage source inverter fed induction motor the applied voltage to the stator is proportional to the frequency, with a correction for the stator resistance drop, CHARACTERISTICS OF ELECTRIC MOTORS Characteristics of DC Motor: DC Motors are of the rotating armature type. The armature winding is a closed winding through the commutator. The armature is supplied through the brushes which are placed along the neutral axis on the commutator.DATA ACQUISITION
Multi Channel Data Acquisition System: The Multi Channel Data Acquisition System can be time shared by two or more input sources. Depending on the desired properties of the multiplexed system, a number of techniques are employed for such time shared measurements. VARIABLE LOAD ON POWER STATION Selection of Power Generation Unit in Load Curve: The load on a Power Generation Unit is seldom constant; it varies from time to time. Obviously, a single generating unit (i.e., alternator) will not be an economical proposition to meet this varying load. RECORDERS | EEEGUIDE Definition of Recorder: Definition of Recorder – A recorder is a measuring instrument that displays a time-varying signal in a form easy to examine, even after the original signal has ceased to exist. INDUCTION MOTOR DRIVES Harmonic Equivalent Circuit of Induction Motor: When fed from an inverter or cycloconverter, the motor terminal voltage is non-sinusoidal but it has half-wave symmetry. A non-sinusoidal waveform can be resolved into fundamental and harmonic components using Fourier analysis. Because of half-wave symmetry only odd harmonics will be present.INDUCTION MACHINE
Deep Bar Rotor: Deep Bar Rotor – The chief advantage of the slip-ring induction motor compared to the squirrel-cage one lies in the fact that while its rotor is designed with low resistance to give good running performance (high efficiency, low slip, etc.), excellent starting characteristic (low starting current, high starting torque, etc.) is simply achievedDYNAMIC ELECTRIC
Dynamic Electric: Dynamic Electric – An industrial drive system basically consists of a mechanical working equipment or load, which has to be kept in motion to turn out mechanical work, equipment to do this job, called the prime mover, and a transmission to transfer energy from the prime mover to the mechanical load.Transmission equipment such as a gearing or belt may be used to matchAC DISTRIBUTION
AC Distribution Calculations: AC Distribution Calculations differ from those of d.c. distribution in the following respects : In case of d.c. system, the voltage drop is due to resistance alone.CIRCUIT ELEMENTS
Circuit Elements which includes Electric Voltage,Current Definition,Power and Energy Formula,SI Unit of Electrical Resistance,Voltage Source and Current CONTROL OF ELECTRIC MOTORS Current Source Inverter Fed Induction Motor Drive: Current Source Inverter Fed Induction Motor Drive – In a voltage source inverter fed induction motor the applied voltage to the stator is proportional to the frequency, with a correction for the stator resistance drop, CHARACTERISTICS OF ELECTRIC MOTORS Characteristics of DC Motor: DC Motors are of the rotating armature type. The armature winding is a closed winding through the commutator. The armature is supplied through the brushes which are placed along the neutral axis on the commutator.DATA ACQUISITION
Multi Channel Data Acquisition System: The Multi Channel Data Acquisition System can be time shared by two or more input sources. Depending on the desired properties of the multiplexed system, a number of techniques are employed for such time shared measurements. VARIABLE LOAD ON POWER STATION Selection of Power Generation Unit in Load Curve: The load on a Power Generation Unit is seldom constant; it varies from time to time. Obviously, a single generating unit (i.e., alternator) will not be an economical proposition to meet this varying load. RECORDERS | EEEGUIDE Definition of Recorder: Definition of Recorder – A recorder is a measuring instrument that displays a time-varying signal in a form easy to examine, even after the original signal has ceased to exist.AC DISTRIBUTION
AC Distribution Calculations: AC Distribution Calculations differ from those of d.c. distribution in the following respects : In case of d.c. system, the voltage drop is due to resistance alone. INDUCTION MOTOR DRIVES Harmonic Equivalent Circuit of Induction Motor: When fed from an inverter or cycloconverter, the motor terminal voltage is non-sinusoidal but it has half-wave symmetry. A non-sinusoidal waveform can be resolved into fundamental and harmonic components using Fourier analysis. Because of half-wave symmetry only odd harmonics will be present. VARIABLE LOAD ON POWER STATION Selection of Power Generation Unit in Load Curve: The load on a Power Generation Unit is seldom constant; it varies from time to time. Obviously, a single generating unit (i.e., alternator) will not be an economical proposition to meet this varying load.INDUCTION MACHINE
Deep Bar Rotor: Deep Bar Rotor – The chief advantage of the slip-ring induction motor compared to the squirrel-cage one lies in the fact that while its rotor is designed with low resistance to give good running performance (high efficiency, low slip, etc.), excellent starting characteristic (low starting current, high starting torque, etc.) is simply achievedDYNAMIC ELECTRIC
Dynamic Electric: Dynamic Electric – An industrial drive system basically consists of a mechanical working equipment or load, which has to be kept in motion to turn out mechanical work, equipment to do this job, called the prime mover, and a transmission to transfer energy from the prime mover to the mechanical load.Transmission equipment such as a gearing or belt may be used to matchSUPPLY SYSTEMS
Supply Systems: Advantages of High Transmission Voltage: The Advantages of High Transmission Voltage at high voltages due to the following reasons : (i) Reduces volume of conductor material: Consider the transmission of electric power by a three-phase line. Let P = power transmitted in watts V = IMPORTANT QUESTIONS OF NEUTRAL GROUNDING Important Questions of Neutral Grounding: 1. What do you mean by grounding or earthing? Explain it with an example. 2. Describe ungrounded or isolated neutral system.INDUCTION MACHINE
Deep Bar Rotor: Deep Bar Rotor – The chief advantage of the slip-ring induction motor compared to the squirrel-cage one lies in the fact that while its rotor is designed with low resistance to give good running performance (high efficiency, low slip, etc.), excellent starting characteristic (low starting current, high starting torque, etc.) is simply achieved INDUCTION MOTOR DRIVES Harmonic Equivalent Circuit of Induction Motor: When fed from an inverter or cycloconverter, the motor terminal voltage is non-sinusoidal but it has half-wave symmetry. A non-sinusoidal waveform can be resolved into fundamental and harmonic components using Fourier analysis. Because of half-wave symmetry only odd harmonics will be present.AC DISTRIBUTION
AC Distribution Calculations: AC Distribution Calculations differ from those of d.c. distribution in the following respects : In case of d.c. system, the voltage drop is due to resistance alone.DATA ACQUISITION
Multi Channel Data Acquisition System: The Multi Channel Data Acquisition System can be time shared by two or more input sources. Depending on the desired properties of the multiplexed system, a number of techniques are employed for such time shared measurements. CONTROL OF ELECTRIC MOTORS Current Source Inverter Fed Induction Motor Drive: Current Source Inverter Fed Induction Motor Drive – In a voltage source inverter fed induction motor the applied voltage to the stator is proportional to the frequency, with a correction for the stator resistance drop,CIRCUIT ELEMENTS
Circuit Elements which includes Electric Voltage,Current Definition,Power and Energy Formula,SI Unit of Electrical Resistance,Voltage Source and Current FABRICATION OF INTEGRATED CIRCUITS Lithography Process: Lithography Process is used to produce a multiple image on the resists which covers the wafer. A lithographic process can be realised with the help of three sub processes given by, Deposit of the resist, Imaging of the wafer, and Etching of the oxide. CHARACTERISTICS OF ELECTRIC MOTORS Characteristics of DC Motor: DC Motors are of the rotating armature type. The armature winding is a closed winding through the commutator. The armature is supplied through the brushes which are placed along the neutral axis on the commutator. VARIABLE LOAD ON POWER STATION Selection of Power Generation Unit in Load Curve: The load on a Power Generation Unit is seldom constant; it varies from time to time. Obviously, a single generating unit (i.e., alternator) will not be an economical proposition to meet this varying load. RECORDERS | EEEGUIDE Definition of Recorder: Definition of Recorder – A recorder is a measuring instrument that displays a time-varying signal in a form easy to examine, even after the original signal has ceased to exist.INDUCTION MACHINE
Deep Bar Rotor: Deep Bar Rotor – The chief advantage of the slip-ring induction motor compared to the squirrel-cage one lies in the fact that while its rotor is designed with low resistance to give good running performance (high efficiency, low slip, etc.), excellent starting characteristic (low starting current, high starting torque, etc.) is simply achieved INDUCTION MOTOR DRIVES Harmonic Equivalent Circuit of Induction Motor: When fed from an inverter or cycloconverter, the motor terminal voltage is non-sinusoidal but it has half-wave symmetry. A non-sinusoidal waveform can be resolved into fundamental and harmonic components using Fourier analysis. Because of half-wave symmetry only odd harmonics will be present.AC DISTRIBUTION
AC Distribution Calculations: AC Distribution Calculations differ from those of d.c. distribution in the following respects : In case of d.c. system, the voltage drop is due to resistance alone.DATA ACQUISITION
Multi Channel Data Acquisition System: The Multi Channel Data Acquisition System can be time shared by two or more input sources. Depending on the desired properties of the multiplexed system, a number of techniques are employed for such time shared measurements. CONTROL OF ELECTRIC MOTORS Current Source Inverter Fed Induction Motor Drive: Current Source Inverter Fed Induction Motor Drive – In a voltage source inverter fed induction motor the applied voltage to the stator is proportional to the frequency, with a correction for the stator resistance drop,CIRCUIT ELEMENTS
Circuit Elements which includes Electric Voltage,Current Definition,Power and Energy Formula,SI Unit of Electrical Resistance,Voltage Source and Current FABRICATION OF INTEGRATED CIRCUITS Lithography Process: Lithography Process is used to produce a multiple image on the resists which covers the wafer. A lithographic process can be realised with the help of three sub processes given by, Deposit of the resist, Imaging of the wafer, and Etching of the oxide. CHARACTERISTICS OF ELECTRIC MOTORS Characteristics of DC Motor: DC Motors are of the rotating armature type. The armature winding is a closed winding through the commutator. The armature is supplied through the brushes which are placed along the neutral axis on the commutator. VARIABLE LOAD ON POWER STATION Selection of Power Generation Unit in Load Curve: The load on a Power Generation Unit is seldom constant; it varies from time to time. Obviously, a single generating unit (i.e., alternator) will not be an economical proposition to meet this varying load. RECORDERS | EEEGUIDE Definition of Recorder: Definition of Recorder – A recorder is a measuring instrument that displays a time-varying signal in a form easy to examine, even after the original signal has ceased to exist.AC DISTRIBUTION
AC Distribution Calculations: AC Distribution Calculations differ from those of d.c. distribution in the following respects : In case of d.c. system, the voltage drop is due to resistance alone. INDUCTION MOTOR DRIVES Harmonic Equivalent Circuit of Induction Motor: When fed from an inverter or cycloconverter, the motor terminal voltage is non-sinusoidal but it has half-wave symmetry. A non-sinusoidal waveform can be resolved into fundamental and harmonic components using Fourier analysis. Because of half-wave symmetry only odd harmonics will be present. VARIABLE LOAD ON POWER STATION Selection of Power Generation Unit in Load Curve: The load on a Power Generation Unit is seldom constant; it varies from time to time. Obviously, a single generating unit (i.e., alternator) will not be an economical proposition to meet this varying load.INDUCTION MACHINE
Deep Bar Rotor: Deep Bar Rotor – The chief advantage of the slip-ring induction motor compared to the squirrel-cage one lies in the fact that while its rotor is designed with low resistance to give good running performance (high efficiency, low slip, etc.), excellent starting characteristic (low starting current, high starting torque, etc.) is simply achievedDYNAMIC ELECTRIC
Dynamic Electric: Dynamic Electric – An industrial drive system basically consists of a mechanical working equipment or load, which has to be kept in motion to turn out mechanical work, equipment to do this job, called the prime mover, and a transmission to transfer energy from the prime mover to the mechanical load.Transmission equipment such as a gearing or belt may be used to matchSUPPLY SYSTEMS
Supply Systems: Advantages of High Transmission Voltage: The Advantages of High Transmission Voltage at high voltages due to the following reasons : (i) Reduces volume of conductor material: Consider the transmission of electric power by a three-phase line. Let P = power transmitted in watts V = IMPORTANT QUESTIONS OF NEUTRAL GROUNDING Important Questions of Neutral Grounding: 1. What do you mean by grounding or earthing? Explain it with an example. 2. Describe ungrounded or isolated neutral system.INDUCTION MACHINE
Deep Bar Rotor: Deep Bar Rotor – The chief advantage of the slip-ring induction motor compared to the squirrel-cage one lies in the fact that while its rotor is designed with low resistance to give good running performance (high efficiency, low slip, etc.), excellent starting characteristic (low starting current, high starting torque, etc.) is simply achievedAC DISTRIBUTION
AC Distribution Calculations: AC Distribution Calculations differ from those of d.c. distribution in the following respects : In case of d.c. system, the voltage drop is due to resistance alone. INDUCTION MOTOR DRIVES Three Phase Induction Motors: Three Phase Induction Motors are of two types: squirrel-case and wound-rotor. In squirrel-cage, the rotor consists of longitudinal conductor-bars shorted by circular connectors at the two ends while in wound-rotor motor, the rotor also has a balanced three-phase distributed winding having same poles as statorwinding.
CONTROL OF ELECTRIC MOTORS Current Source Inverter Fed Induction Motor Drive: Current Source Inverter Fed Induction Motor Drive – In a voltage source inverter fed induction motor the applied voltage to the stator is proportional to the frequency, with a correction for the stator resistance drop,DATA ACQUISITION
Multi Channel Data Acquisition System: The Multi Channel Data Acquisition System can be time shared by two or more input sources. Depending on the desired properties of the multiplexed system, a number of techniques are employed for such time shared measurements.CIRCUIT ELEMENTS
Circuit Elements which includes Electric Voltage,Current Definition,Power and Energy Formula,SI Unit of Electrical Resistance,Voltage Source and Current FABRICATION OF INTEGRATED CIRCUITS Lithography Process: Lithography Process is used to produce a multiple image on the resists which covers the wafer. A lithographic process can be realised with the help of three sub processes given by, Deposit of the resist, Imaging of the wafer, and Etching of the oxide. CHARACTERISTICS OF ELECTRIC MOTORS Characteristics of DC Motor: DC Motors are of the rotating armature type. The armature winding is a closed winding through the commutator. The armature is supplied through the brushes which are placed along the neutral axis on the commutator. VARIABLE LOAD ON POWER STATION Selection of Power Generation Unit in Load Curve: The load on a Power Generation Unit is seldom constant; it varies from time to time. Obviously, a single generating unit (i.e., alternator) will not be an economical proposition to meet this varying load. RECORDERS | EEEGUIDE Definition of Recorder: Definition of Recorder – A recorder is a measuring instrument that displays a time-varying signal in a form easy to examine, even after the original signal has ceased to exist.INDUCTION MACHINE
Deep Bar Rotor: Deep Bar Rotor – The chief advantage of the slip-ring induction motor compared to the squirrel-cage one lies in the fact that while its rotor is designed with low resistance to give good running performance (high efficiency, low slip, etc.), excellent starting characteristic (low starting current, high starting torque, etc.) is simply achievedAC DISTRIBUTION
AC Distribution Calculations: AC Distribution Calculations differ from those of d.c. distribution in the following respects : In case of d.c. system, the voltage drop is due to resistance alone. INDUCTION MOTOR DRIVES Three Phase Induction Motors: Three Phase Induction Motors are of two types: squirrel-case and wound-rotor. In squirrel-cage, the rotor consists of longitudinal conductor-bars shorted by circular connectors at the two ends while in wound-rotor motor, the rotor also has a balanced three-phase distributed winding having same poles as statorwinding.
CONTROL OF ELECTRIC MOTORS Current Source Inverter Fed Induction Motor Drive: Current Source Inverter Fed Induction Motor Drive – In a voltage source inverter fed induction motor the applied voltage to the stator is proportional to the frequency, with a correction for the stator resistance drop,DATA ACQUISITION
Multi Channel Data Acquisition System: The Multi Channel Data Acquisition System can be time shared by two or more input sources. Depending on the desired properties of the multiplexed system, a number of techniques are employed for such time shared measurements.CIRCUIT ELEMENTS
Circuit Elements which includes Electric Voltage,Current Definition,Power and Energy Formula,SI Unit of Electrical Resistance,Voltage Source and Current FABRICATION OF INTEGRATED CIRCUITS Lithography Process: Lithography Process is used to produce a multiple image on the resists which covers the wafer. A lithographic process can be realised with the help of three sub processes given by, Deposit of the resist, Imaging of the wafer, and Etching of the oxide. CHARACTERISTICS OF ELECTRIC MOTORS Characteristics of DC Motor: DC Motors are of the rotating armature type. The armature winding is a closed winding through the commutator. The armature is supplied through the brushes which are placed along the neutral axis on the commutator. VARIABLE LOAD ON POWER STATION Selection of Power Generation Unit in Load Curve: The load on a Power Generation Unit is seldom constant; it varies from time to time. Obviously, a single generating unit (i.e., alternator) will not be an economical proposition to meet this varying load. RECORDERS | EEEGUIDE Definition of Recorder: Definition of Recorder – A recorder is a measuring instrument that displays a time-varying signal in a form easy to examine, even after the original signal has ceased to exist.AC DISTRIBUTION
AC Distribution Calculations: AC Distribution Calculations differ from those of d.c. distribution in the following respects : In case of d.c. system, the voltage drop is due to resistance alone. INDUCTION MOTOR DRIVES Three Phase Induction Motors: Three Phase Induction Motors are of two types: squirrel-case and wound-rotor. In squirrel-cage, the rotor consists of longitudinal conductor-bars shorted by circular connectors at the two ends while in wound-rotor motor, the rotor also has a balanced three-phase distributed winding having same poles as statorwinding.
VARIABLE LOAD ON POWER STATION Selection of Power Generation Unit in Load Curve: The load on a Power Generation Unit is seldom constant; it varies from time to time. Obviously, a single generating unit (i.e., alternator) will not be an economical proposition to meet this varying load.INDUCTION MACHINE
Deep Bar Rotor: Deep Bar Rotor – The chief advantage of the slip-ring induction motor compared to the squirrel-cage one lies in the fact that while its rotor is designed with low resistance to give good running performance (high efficiency, low slip, etc.), excellent starting characteristic (low starting current, high starting torque, etc.) is simply achievedDYNAMIC ELECTRIC
Dynamic Electric: Dynamic Electric – An industrial drive system basically consists of a mechanical working equipment or load, which has to be kept in motion to turn out mechanical work, equipment to do this job, called the prime mover, and a transmission to transfer energy from the prime mover to the mechanical load.Transmission equipment such as a gearing or belt may be used to matchSUPPLY SYSTEMS
Supply Systems: Advantages of High Transmission Voltage: The Advantages of High Transmission Voltage at high voltages due to the following reasons : (i) Reduces volume of conductor material: Consider the transmission of electric power by a three-phase line. Let P = power transmitted in watts V = IMPORTANT QUESTIONS OF NEUTRAL GROUNDING Important Questions of Neutral Grounding: 1. What do you mean by grounding or earthing? Explain it with an example. 2. Describe ungrounded or isolated neutral system.* HOME
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INDIRECT TESTING OF CIRCUIT BREAKER __POWER SYSTEM PROTECTION, TESTING
OF CIRCUIT BREAKERS
Indirect Testing of Circuit Breaker: With the increase in the breaking capacity of the HV circuit breakers, it has become uneconomical and unpracticable to increase the short-circuit capacity of testing station. It is consequently necessary to utilize some form of Indirect Testing of Circuit Breaker. The important methods of Indirect Testing of Circuit Breaker are:Read Post
DIRECT TESTING OF CIRCUIT BREAKER __POWER SYSTEM PROTECTION, TESTING
OF CIRCUIT BREAKERS
Direct Testing of Circuit Breaker: The Direct Testing of Circuit Breaker in a plant enables us to test under conditions largely representing those in actual network as well as tests of greater severity. The circuit breaker to be tested is subjected to the value of transient restriking voltage to which it is expected to beRead Post
CIRCUIT BREAKER TESTING PROCEDURE __POWER SYSTEM PROTECTION, TESTING
OF CIRCUIT BREAKERS
Circuit Breaker Testing Procedure: A preliminary check up of various equipment is made before the actual Circuit Breaker Testing Procedure commences. The correct values of resistance and reactance coils are inserted as per the magnitude of the short-circuit current. Proper settings of transformers are made. The measuring circuits are connected and oscillograph loops are calibrated.Read Post
CIRCUIT BREAKER ANALYZER __POWER SYSTEM PROTECTION, TESTING
OF CIRCUIT BREAKERS
Circuit Breaker Analyzer: Short Circuit Generator: This is of a special design having very low reactance in order to give the maximum short-circuit output of the Circuit Breaker Analyzer. The leakage reactance is reduced by reducing the depth of slots and the length of coil ends. The terminals are brought to a board where differentRead Post
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* DATA TRANSMISSION
(13)
* DC DISTRIBUTION
(6)
* DC MACHINES
(26)
* DC MOTOR DRIVES
(19)
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(5)
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* ELECTRIC DRIVES
(148)
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* ELECTRICAL DRIVES
(107)
* ELECTRICAL DRIVES INTRODUCTION(3)
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(4)
* ELECTRICAL MACHINES(182)
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* FET BIASING
(11)
* FIBER OPTIC COMMUNICATION(9)
* FIELD EFFECT TRANSISTORS(5)
* FILTERS
(28)
* FLUID MECHANICS
(6)
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(6)
* FRACTIONAL KILOWATT MOTORS(12)
* FREQUENCY MODULATION BASIC THEORY(3)
* FREQUENCY STANDARDS(2)
* FUSES (2)
* GENERATING STATIONS(7)
* GENERATION OF HIGH VOLTAGE AND CURRENTS(19)
* HIGH VOLTAGE
(121)
* HIGH VOLTAGE INTRODUCTION(10)
* HIGH VOLTAGE LABORATORY DESIGN(5)
* HIGH VOLTAGE TESTING OF ELECTRICAL APPARATUS(8)
* IC FABRICATION
(6)
* IC OPERATIONAL AMPLIFIERS(10)
* INDICATORS & DISPLAY DEVICES(19)
* INDUCTANCE AND RESISTANCE(11)
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(19)
* INDUCTION MOTOR DRIVES(26)
* INSTRUCTION SET AND PROGRAMMING 8085(5)
* INTEGRATED CIRCUITS(108)
* INTEL 8086 MICROPROCESSOR(4)
* INTERFACING ICS
(31)
* INTERFACING WITH MICROPROCESSORS(13)
* INTRODUCTION TO COMMUNICATION SYSTEMS(3)
* INTRODUCTION TO ELECTRIC ENERGY SYSTEMS(4)
* INTRODUCTION TO ELECTRICAL MACHINES(3)
* INTRODUCTION TO MODERN POWER SYSTEM(22)
* INTRODUCTION TO PROTECTIVE RELAYS(5)
* INTRODUCTION TO STATIC RELAYS(11)
* LINEAR AND SWITCHING VOLTAGE REGULATORS(9)
* LINEAR INTEGRATED CIRCUITS(62)
* LOAD FLOW STUDIES
(8)
* LOAD FORECASTING
(7)
* MAGNETIC CIRCUITS
(9)
* MEASUREMENT OF HIGH VOLTAGE AND CURRENTS(24)
* MEASUREMENT OF POWER(10)
* MEASUREMENT SET UP(12)
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* METHODS OF CIRCUIT ANALYSIS(11)
* MICROCONTROLLER 8031 AND 8051(7)
* MICROPROCESSORS
(109)
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* MOTOR CONTROL
(31)
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* MOTOROLA 68000
(7)
* NETWORK ANALYSIS
(11)
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(8)
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(5)
* OPERATIONAL AMPLIFIER FREQUENCY RESPONSE(6)
* OPTIMAL SYSTEM
(8)
* OPTOELECTRONIC DEVICES(8)
* OSCILLOSCOPE
(31)
* OVERVOLTAGE
(16)
* OVERVOLTAGE PROTECTION(5)
* PERFORMANCE OF POWER TRNASMISSION(11)
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* POWER FACTOR
(5)
* POWER SYSTEM
(158)
* POWER SYSTEM COMPONENTS(7)
* POWER SYSTEM PROTECTION(126)
* POWER SYSTEM SECURITY(6)
* POWER SYSTEM STABILITY(11)
* PROTECTION OF ALTERNATORS AND TRANSFORMERS(7)
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* PROTECTION PRINCIPLES AND COMPONENTS(3)
* PROTECTIVE RELAYS
(11)
* PULSE COMMUNICATION(4)
* QUALITIES OF MEASUREMENT(8)
* RADAR SYSTEMS
(13)
* RADIATION AND PROPAGATION OF WAVES(11)
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(21)
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* RECORDERS
(11)
* RESONATORS AND WAVEGUIDES(14)
* ROTATING MACHINES
(20)
* SEMICONDUCTOR
(7)
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* SIGNAL CONDITIONING(19)
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(14)
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(6)
* SINGLE SIDEBAND TECHNIQUES(4)
* SMALL SIGNAL AMPLIFIERS(10)
* SOLAR AND BATTERY POWERED DRIVES(3)
* STATE ESTIMATION OF POWER SYSTEM(8)
* STATIC PROTECTIVE RELAY(5)
* STATIC RELAYS
(11)
* STEPPER MOTOR AND SWITCHED RELUCTANCE MOTOR DRIVES(4)
* SUB STATIONS
(5)
* SUPPLY SYSTEMS
(10)
* SWITCHGEAR
(4)
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* SYMMETRICAL FAULT
(4)
* SYMMETRICAL FAULT ANALYSIS(8)
* SYNCHRONOUS MACHINE(19)
* SYNCHRONOUS MOTOR AND BRUSHLESS DC MOTOR DRIVES(7)
* TARIFF (1)
* TELEVISION SYSTEM
(13)
* TESTING AND MAINTENANCE OF PROTECTIVE GEAR(6)
* TESTING OF CIRCUIT BREAKERS(6)
* TESTING OF MATERIALS(7)
* THEORY OF CIRCUIT INTERRUPTION(3)
* THYRISTORS
(9)
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(18)
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(29)
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(32)
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* UNSYMMETRICAL FAULTS(5)
* VARIABLE LOAD ON POWER STATION(7)
* VOLTAGE CONTROL
(8)
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(5)
* VOLTMETERS & MULTIMETERS(14)
* WAVE ANALYZER
(7)
* WORKING PRINCIPLE OF RELAY(4)
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