File - ganesh subramanian
... 52.What is the fundamental requirement of a good insulating material? High dielectric strength, high insulating resistance with low dielectric loss, good mechanical strength, good thermal conductivity, high degree of thermal stability. 53.What is the importance of temperature as a factor in the life ...
... 52.What is the fundamental requirement of a good insulating material? High dielectric strength, high insulating resistance with low dielectric loss, good mechanical strength, good thermal conductivity, high degree of thermal stability. 53.What is the importance of temperature as a factor in the life ...
SR integrated charger - Aston Publications Explorer
... AC-DC rectification and voltage regulation in order to achieve a required voltage level. However, they are difficult to meet the varying input and output voltage/power requirements. From the input side of the charger, the options can be either DC or AC (single-phase or three-phase). Nevertheless, th ...
... AC-DC rectification and voltage regulation in order to achieve a required voltage level. However, they are difficult to meet the varying input and output voltage/power requirements. From the input side of the charger, the options can be either DC or AC (single-phase or three-phase). Nevertheless, th ...
harmonic mitigation of 12 pulse drives
... constructed a 30 HP twelve-pulse drive from a standard delta delta-wye isolation transformer and standard six-pulse drive using the series bridge connection shown in figure 3. An auto transformer could have been used in place of the isolation transformer. The auto transformer costs less and requires ...
... constructed a 30 HP twelve-pulse drive from a standard delta delta-wye isolation transformer and standard six-pulse drive using the series bridge connection shown in figure 3. An auto transformer could have been used in place of the isolation transformer. The auto transformer costs less and requires ...
Synchro Application Guide
... (5000 mg-mm) to minimize system errors. An accuracy of 1° is standard. All synchro systems are subject to one serious drawback – torque levels typically run around 3000 mg-mm per degree of receiver displacement. This is sufficient to turn a dial or a pointer but nothing larger without increasing sys ...
... (5000 mg-mm) to minimize system errors. An accuracy of 1° is standard. All synchro systems are subject to one serious drawback – torque levels typically run around 3000 mg-mm per degree of receiver displacement. This is sufficient to turn a dial or a pointer but nothing larger without increasing sys ...
Synchronous Machine
... current can be limited by other means not necessarily by keeping a low value of SCR. Self excitation : Alternators feeding long transmission lines should not be designed with small SCR as this would lead to large terminal voltage on open circuit due to large capacitance currents. ...
... current can be limited by other means not necessarily by keeping a low value of SCR. Self excitation : Alternators feeding long transmission lines should not be designed with small SCR as this would lead to large terminal voltage on open circuit due to large capacitance currents. ...
Current Sense Circuit Collection
... (RSENSE) to equal the voltage between VDC and the potentiometer’s wiper. A rail-to-rail op amp is needed because the voltage across the sense resistor is nearly the same as VDC. Q2 acts as a constant current sink to minimize error in the reference voltage when the supply voltage varies. At low input ...
... (RSENSE) to equal the voltage between VDC and the potentiometer’s wiper. A rail-to-rail op amp is needed because the voltage across the sense resistor is nearly the same as VDC. Q2 acts as a constant current sink to minimize error in the reference voltage when the supply voltage varies. At low input ...
EE 742 Chap. 5: Electromechanical Dynamics
... Introduction • In this chapter, a longer time scale is considered during which the rotor speed will vary (order of seconds to tens of seconds). • The change in rotor speed interacts with the electromagnetic changes to produce electro-mechanical dynamic effects. • Some important stability concepts w ...
... Introduction • In this chapter, a longer time scale is considered during which the rotor speed will vary (order of seconds to tens of seconds). • The change in rotor speed interacts with the electromagnetic changes to produce electro-mechanical dynamic effects. • Some important stability concepts w ...
Bipolar Transistors I – Page 1 Bipolar Transistors I
... resistor. Probably you find that when there is any base current at all, the voltage drop on the collector resistor is so large that you can’t get VCE at all close to the supply voltage. You are looking at the switching characteristic of a transistor. The transistor tends to be either on (large colle ...
... resistor. Probably you find that when there is any base current at all, the voltage drop on the collector resistor is so large that you can’t get VCE at all close to the supply voltage. You are looking at the switching characteristic of a transistor. The transistor tends to be either on (large colle ...
Bipolar Transistors I – Page 1 Bipolar Transistors I
... Replace the 1K collector resistor in the circuit above by a 10K resistor. Try to make the measurements of the collector characteristics now with this larger collector resistor. Probably you find that when there is any base current at all, the voltage drop on the collector resistor is so large that y ...
... Replace the 1K collector resistor in the circuit above by a 10K resistor. Try to make the measurements of the collector characteristics now with this larger collector resistor. Probably you find that when there is any base current at all, the voltage drop on the collector resistor is so large that y ...
FALL2016_ELC3314_01_Circuit_Practice_and_Resistor_PCB
... Step 1. Solder resistors to board. First ohm color bar should be at the highest point. Step 2. Measure the resistance from Node A to Node G and compare to calculations. Measured results should be within 5% of calculated. Step 3. Solder the power jack, energize with a 12Vdc wall wart, and check that ...
... Step 1. Solder resistors to board. First ohm color bar should be at the highest point. Step 2. Measure the resistance from Node A to Node G and compare to calculations. Measured results should be within 5% of calculated. Step 3. Solder the power jack, energize with a 12Vdc wall wart, and check that ...
How to Control and Monitor a C441 Motor Insight with
... has 120vac inputs for this purpose and the C441T has 24vdc inputs for this purpose. This application example will show how to configure a CompactLogix PLC with an embedded Ethernet/IP port to poll a C441 Motor Insight via Ethernet/IP and the C441R/T Ethernet module. This data will then be mapped to ...
... has 120vac inputs for this purpose and the C441T has 24vdc inputs for this purpose. This application example will show how to configure a CompactLogix PLC with an embedded Ethernet/IP port to poll a C441 Motor Insight via Ethernet/IP and the C441R/T Ethernet module. This data will then be mapped to ...
T4500 Auto Synchronizer
... be used to adapt the contact pulses to a signal, suitable for the speed trim input of an electronic speed controller. ...
... be used to adapt the contact pulses to a signal, suitable for the speed trim input of an electronic speed controller. ...
Chapter 11 Balanced Three-Phase Circuits
... Three-Phase Systems Analysis of the Y-Y Circuit Analysis of the Y- Circuit Power Calculations in Balanced Three-Phase Circuits Measuring Average Power in ThreePhase Circuits ...
... Three-Phase Systems Analysis of the Y-Y Circuit Analysis of the Y- Circuit Power Calculations in Balanced Three-Phase Circuits Measuring Average Power in ThreePhase Circuits ...
T4500 Manual
... be set on the front dial C/B MAKE TIME according to the specifications of the circuit breaker. The T4500 compensates for this make time so that the circuit breaker will close exactly at zero phase. The circuit breaker closing signal is a pulse signal of 0.7 seconds duration at terminals 9 and 10 (C ...
... be set on the front dial C/B MAKE TIME according to the specifications of the circuit breaker. The T4500 compensates for this make time so that the circuit breaker will close exactly at zero phase. The circuit breaker closing signal is a pulse signal of 0.7 seconds duration at terminals 9 and 10 (C ...
Solid-state High Voltage Pulse Power in the 10
... field strength between the arrival of particle packets, maintain the field for a finite time, and return to zero field ...
... field strength between the arrival of particle packets, maintain the field for a finite time, and return to zero field ...
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.