Applications of Variable Speed Drives
... Rotary screw and piston air compressors are essentially constant torque loads which can also benefit from the application of variable speed control. The savings related to the use of variable speed control are dependent on the control system that is being replaced. In Fig. 7 the energy savings achie ...
... Rotary screw and piston air compressors are essentially constant torque loads which can also benefit from the application of variable speed control. The savings related to the use of variable speed control are dependent on the control system that is being replaced. In Fig. 7 the energy savings achie ...
1. General - Saunalahti.fi
... LF1. C5, D1 and D2 form a voltage doubler that rises the output of T1 from 2 to 4 kV AC. C6, D3 and D4 implement the same function for T2. The total voltage developed upon SG1 is therefore 8 kV AC. C1-C4 and R1-R4 are snubbers to protect D1-D4 from voltage transients. Motor MG1 rotates the RSG1 rota ...
... LF1. C5, D1 and D2 form a voltage doubler that rises the output of T1 from 2 to 4 kV AC. C6, D3 and D4 implement the same function for T2. The total voltage developed upon SG1 is therefore 8 kV AC. C1-C4 and R1-R4 are snubbers to protect D1-D4 from voltage transients. Motor MG1 rotates the RSG1 rota ...
Session 9.2 J. Ritchey Improving Generators and Motors Using
... Source: Wind Turbines Fundamentals, Technologies, Applications & Economics" by Erich Hau ...
... Source: Wind Turbines Fundamentals, Technologies, Applications & Economics" by Erich Hau ...
G050486-00 - DCC
... METHOD: a stepping motor,which will move its own mass by means of a threaded shaft G050486-00-R ...
... METHOD: a stepping motor,which will move its own mass by means of a threaded shaft G050486-00-R ...
Monitoring technique
... at IK/SK 9065. When connecting asynchronous motors not only the nominal current is important, but also the much higher starting current. The overload characteristic of the current input allows to connect motors with nominal current up to 4..5 A depending on the starting conditions. This is at 3 AC 4 ...
... at IK/SK 9065. When connecting asynchronous motors not only the nominal current is important, but also the much higher starting current. The overload characteristic of the current input allows to connect motors with nominal current up to 4..5 A depending on the starting conditions. This is at 3 AC 4 ...
the objectives of site grounding
... Modulation Technique for sine-coded PWM using the SineTriangle intersection method - digital implementation ...
... Modulation Technique for sine-coded PWM using the SineTriangle intersection method - digital implementation ...
Solid State Drives 7th Semester
... condition. Motor temperature then reaches a steady state value. Steady state temperature depends on power loss, which in turn depends on the output power of the machine. Since temperature rise has a direct relation with the output power, it is termed thermal loading on the machine. Steady state temp ...
... condition. Motor temperature then reaches a steady state value. Steady state temperature depends on power loss, which in turn depends on the output power of the machine. Since temperature rise has a direct relation with the output power, it is termed thermal loading on the machine. Steady state temp ...
1 A circuit consists of three identical lamps connected to a battery
... difference (V) as a function of position (clockwise from X) around the electronic circuit (below). Assume all wires and the switch have zero resistance. ...
... difference (V) as a function of position (clockwise from X) around the electronic circuit (below). Assume all wires and the switch have zero resistance. ...
Speed control for HF MIG welders I bought a Harbor Freight “Dual
... As soon as AC power is applied to the main power transformer, and rectified into pulsating DC by the large rectifiers in the welder (again shown on the user manual diagram), there will be 1720V DC applied between pin 6 (+) and pin 10 (-). (The exact voltage will depend on the power settings, how muc ...
... As soon as AC power is applied to the main power transformer, and rectified into pulsating DC by the large rectifiers in the welder (again shown on the user manual diagram), there will be 1720V DC applied between pin 6 (+) and pin 10 (-). (The exact voltage will depend on the power settings, how muc ...
PDF
... it is the most commonly used motor in industry [5,6]. Another attractive topic is the control scheme used to control an electric system. Field oriented control (FOC) is used to optimize the electric system. Intelligence techniques are used such as pi controller, fuzzy logic controller and hybrid con ...
... it is the most commonly used motor in industry [5,6]. Another attractive topic is the control scheme used to control an electric system. Field oriented control (FOC) is used to optimize the electric system. Intelligence techniques are used such as pi controller, fuzzy logic controller and hybrid con ...
current
... – There’s something pushing the water or some energy source making it flow (push = voltage/volts) – You can measure how fast it is flowing (flow = amperage/amps) – There are things that slow water down (slowing = resistance/ohms) • Conductors have low resistance and allow flow, insulators have high ...
... – There’s something pushing the water or some energy source making it flow (push = voltage/volts) – You can measure how fast it is flowing (flow = amperage/amps) – There are things that slow water down (slowing = resistance/ohms) • Conductors have low resistance and allow flow, insulators have high ...
N - ZARM
... push-pull four channel drivers L293E IC with an output current 1A max. It uses only two channels from this IC to control the DC motor in both directions. The digital controlled trick is the chip enable input of the IC where the PWM is applied. Therefore the drivers inputs may be used in bidirectiona ...
... push-pull four channel drivers L293E IC with an output current 1A max. It uses only two channels from this IC to control the DC motor in both directions. The digital controlled trick is the chip enable input of the IC where the PWM is applied. Therefore the drivers inputs may be used in bidirectiona ...
Simple-H User Manual
... The Simple-H uses the Infineon BTN7960B as its power-switching element. Each BTN7960B thus contains a complete half-bridge circuit and all needed driver circuits including robust protection features. The device features self-protection from over temperature, over current and over and under voltage c ...
... The Simple-H uses the Infineon BTN7960B as its power-switching element. Each BTN7960B thus contains a complete half-bridge circuit and all needed driver circuits including robust protection features. The device features self-protection from over temperature, over current and over and under voltage c ...
DC to AC Conversion (INVERTER) - ENCON
... For positive phase current +ia, Q11, Q12 : when va0 positive D13, D14 : when va0 negative D10, Q12 : at neutral clamping condition For negative phase current -ia, D11, D12 : when va0 positive Q13, Q14 : when va0 negative O13, D10’ : at neutral clamping condition Operation mode gives : 3 levels ...
... For positive phase current +ia, Q11, Q12 : when va0 positive D13, D14 : when va0 negative D10, Q12 : at neutral clamping condition For negative phase current -ia, D11, D12 : when va0 positive Q13, Q14 : when va0 negative O13, D10’ : at neutral clamping condition Operation mode gives : 3 levels ...
700` 54` 24 54 36 70”
... did not impede the liquid flow from the impeller would temperature rises in critical components of the power necessitate a pumping chamber of comparatively large circuit such as the secondary winding of the trans diameter. This problem can be overcome by mounting ...
... did not impede the liquid flow from the impeller would temperature rises in critical components of the power necessitate a pumping chamber of comparatively large circuit such as the secondary winding of the trans diameter. This problem can be overcome by mounting ...
Automatic Transformer Observation Device (ATOS)
... The device consists of a winding resistance meter, a turns ratio meter and multiplexers. The winding resistance meter is capable to deliver direct current for fast core magnetization. It is designed for highly accurate measurements of very low resistances. Measurements can be made with a selectable ...
... The device consists of a winding resistance meter, a turns ratio meter and multiplexers. The winding resistance meter is capable to deliver direct current for fast core magnetization. It is designed for highly accurate measurements of very low resistances. Measurements can be made with a selectable ...
electrical drive
... (f) Control unit : It control the power modulator besides generating commands for the protection of the motor and power modulator. It usually operates at much lower voltage and power levels. Input command signal, which adjusts the operation of drive forms an input o the control unit apart from signa ...
... (f) Control unit : It control the power modulator besides generating commands for the protection of the motor and power modulator. It usually operates at much lower voltage and power levels. Input command signal, which adjusts the operation of drive forms an input o the control unit apart from signa ...
Datasheet for the Toshibas TA8050P
... The TA8050P is a 1.5A motor driver which directly drives a bidirectional DC motor. Inputs DI1 and DI2 are combined to select one of forward, reverse, stop, and brake modes. Since the inputs are TTL-compatible, this IC can be controlled directly from a CPU or other control system. The IC also has var ...
... The TA8050P is a 1.5A motor driver which directly drives a bidirectional DC motor. Inputs DI1 and DI2 are combined to select one of forward, reverse, stop, and brake modes. Since the inputs are TTL-compatible, this IC can be controlled directly from a CPU or other control system. The IC also has var ...
Wireless Music transmission and reception by IR
... this project, power supply of 5V and 12V are required. In order to obtain these voltage levels, 7805 and 7812 voltage regulators are to be used. The first number 78 represents positive supply and the numbers 05, 12 represent the required output voltage levels. The L78xx series of three-terminal posi ...
... this project, power supply of 5V and 12V are required. In order to obtain these voltage levels, 7805 and 7812 voltage regulators are to be used. The first number 78 represents positive supply and the numbers 05, 12 represent the required output voltage levels. The L78xx series of three-terminal posi ...
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.