Introduction to Digital Multimeters
... resistance is called a multimeter, As voltage is always relative between two points, a voltage-measuring meter ("voltmeter") must be connected to two points in a circuit in order to obtain a good reading. Be careful not to touch the bare probe tips together while measuring voltage, as this will crea ...
... resistance is called a multimeter, As voltage is always relative between two points, a voltage-measuring meter ("voltmeter") must be connected to two points in a circuit in order to obtain a good reading. Be careful not to touch the bare probe tips together while measuring voltage, as this will crea ...
FMB2222A FFB2222A MMPQ2222A NPN Multi-Chip General Purpose Amplifier
... NPN Multi-Chip General Purpose Amplifier This device is for use as a medium power amplifier and switch requiring collector currents up to 500 mA. Sourced from Process 19. ...
... NPN Multi-Chip General Purpose Amplifier This device is for use as a medium power amplifier and switch requiring collector currents up to 500 mA. Sourced from Process 19. ...
EEP/402- Power system protection
... 6) Speed Measurement of Motor. 7) Speed Control of Induction Motor from SCADA, PLC through VFD. 8) DOL starter & star delta starter operation by using PLC. 9) Measurement of voltage, current, PF, Power & Energy. 10)Study of Ladder Diagram logic programming. 11)Study of ...
... 6) Speed Measurement of Motor. 7) Speed Control of Induction Motor from SCADA, PLC through VFD. 8) DOL starter & star delta starter operation by using PLC. 9) Measurement of voltage, current, PF, Power & Energy. 10)Study of Ladder Diagram logic programming. 11)Study of ...
accurate measurement of the mains frequency
... peak voltage can be calculated by multiplying the voltage with 2 or the peak-to-peak voltage is found by multiplying with 2 2 . The frequency used in mains electricity is either 50 Hz (20 ms period) sinusoidal or 60 Hz (16.66 ms period) sinusoidal. Table 1 gives a short list of some of the mains vol ...
... peak voltage can be calculated by multiplying the voltage with 2 or the peak-to-peak voltage is found by multiplying with 2 2 . The frequency used in mains electricity is either 50 Hz (20 ms period) sinusoidal or 60 Hz (16.66 ms period) sinusoidal. Table 1 gives a short list of some of the mains vol ...
Series 935 Retrofit Guide
... the controlled part of the process. This feature allows the control of one process as a ratio of another process. This is especially useful in applications that mix two materials, whether steam, paint or food ingredients. SSR – Solid State Relay, these devices will switch AC voltage only and require ...
... the controlled part of the process. This feature allows the control of one process as a ratio of another process. This is especially useful in applications that mix two materials, whether steam, paint or food ingredients. SSR – Solid State Relay, these devices will switch AC voltage only and require ...
Series 965 Retrofit Guide
... the controlled part of the process. This feature allows the control of one process as a ratio of another process. This is especially useful in applications that mix two materials, whether steam, paint or food ingredients. SSR – Solid State Relay, these devices will switch AC voltage only and require ...
... the controlled part of the process. This feature allows the control of one process as a ratio of another process. This is especially useful in applications that mix two materials, whether steam, paint or food ingredients. SSR – Solid State Relay, these devices will switch AC voltage only and require ...
A New Precision Peak Detector/Full
... The circuit consists of five diode-connected MOS transistors, phase shifter, together with two dual-output CCs [18-20]. The NMOS transistors M1, M3 and M5 have a threshold voltage VTn ≥ 0. Similarly, the identical PMOS transistors (M2, M4) have threshold voltage VTp ≤ 0. The Y ports of the CCs are b ...
... The circuit consists of five diode-connected MOS transistors, phase shifter, together with two dual-output CCs [18-20]. The NMOS transistors M1, M3 and M5 have a threshold voltage VTn ≥ 0. Similarly, the identical PMOS transistors (M2, M4) have threshold voltage VTp ≤ 0. The Y ports of the CCs are b ...
A Multiple Output Dc-Dc Converter Using Two Switch
... voltage levels.The requirement for multiple voltage levels, to support different digital systems, may bedriven by a single dc source, viz., battery. One approach to regulate multiple outputs froma source is to have a single power converter with multiple outputs, e.g., a fly back or forward converter ...
... voltage levels.The requirement for multiple voltage levels, to support different digital systems, may bedriven by a single dc source, viz., battery. One approach to regulate multiple outputs froma source is to have a single power converter with multiple outputs, e.g., a fly back or forward converter ...
Active and reactive power control and quality
... The main focus of this paper is to control the active power supplied by distributed generation (DG) system while compensating harmonics and reactive currents caused by the nonlinear loads using shunt active power filter (APF). The APF control is based on load currents sensing for reference current e ...
... The main focus of this paper is to control the active power supplied by distributed generation (DG) system while compensating harmonics and reactive currents caused by the nonlinear loads using shunt active power filter (APF). The APF control is based on load currents sensing for reference current e ...
Background Lecture - IEEE Real World Engineering Projects
... • Shorter trip times in high density urban areas • Quieter ...
... • Shorter trip times in high density urban areas • Quieter ...
designing an uninterruptible power supply based on the high
... SCIENCE AND TECHNOLOGY DEVELOPMENT, VOL 15, NO.K3- 2015 2. ANALYSIS OF DC/DC TOPOLOGIES Because the output voltage of the DC/DC converter should be high enough to generate the DC-link voltage around 350 V, and battery has a low voltage ranges from 20 V to 24 V, so a DC/DC converter has been investi ...
... SCIENCE AND TECHNOLOGY DEVELOPMENT, VOL 15, NO.K3- 2015 2. ANALYSIS OF DC/DC TOPOLOGIES Because the output voltage of the DC/DC converter should be high enough to generate the DC-link voltage around 350 V, and battery has a low voltage ranges from 20 V to 24 V, so a DC/DC converter has been investi ...
WM30 Datasheet in English
... number of pulses within a fixed time period, or by measuring the time between successive pulses. A potentiometer detects the position of the vane. The potentiometer features low starting and running torque, linear resistance and a long operation life. It has a single wiper with an open gap of less t ...
... number of pulses within a fixed time period, or by measuring the time between successive pulses. A potentiometer detects the position of the vane. The potentiometer features low starting and running torque, linear resistance and a long operation life. It has a single wiper with an open gap of less t ...
3.4 Poloidal Field Power Supply Systems for the EAST Steady State
... When the coil current is below the 10% level, the converters operate in the four-quadrant mode, in which only G11, G31, G22, and G42 operate. This operation mode of the PF converters can save half of the capacity of the required transformer, and also ensure that the load current crosses zero smoothl ...
... When the coil current is below the 10% level, the converters operate in the four-quadrant mode, in which only G11, G31, G22, and G42 operate. This operation mode of the PF converters can save half of the capacity of the required transformer, and also ensure that the load current crosses zero smoothl ...
maxspeed Crane Drive MG Set Conversion
... or reverse Gate Pulse Generator. With positive inputs, the forward gate pulse generator is turned “on” while the reverse is turned “off’. Exciting the gate pulse generator causes the unijunction fmng cncurt to operate, sending pulses to the gates of the card mounted SCR’s. This excitation of firing ...
... or reverse Gate Pulse Generator. With positive inputs, the forward gate pulse generator is turned “on” while the reverse is turned “off’. Exciting the gate pulse generator causes the unijunction fmng cncurt to operate, sending pulses to the gates of the card mounted SCR’s. This excitation of firing ...
CM-30 CM-30W - Performance Audio
... the singing voice, organ or other musical instruments. Extreme low frequencies are filtered out to reduce pickup of room rumble. The microphone output is balanced, low impedance. It is protected against static and radio frequency interference. A built-in removable hanger allows easy position adjustm ...
... the singing voice, organ or other musical instruments. Extreme low frequencies are filtered out to reduce pickup of room rumble. The microphone output is balanced, low impedance. It is protected against static and radio frequency interference. A built-in removable hanger allows easy position adjustm ...
1.5 KVA Manual.03.indd - Smith-Root
... switch is the main power switch and also functions as a circuit breaker to protect the unit in an overload. Warning, avoid turning this switch off when output of the Electrofisher is on. Time/seconds Counter: Located bottom right. This counter indicates electrofishing time in seconds. It may be reset ...
... switch is the main power switch and also functions as a circuit breaker to protect the unit in an overload. Warning, avoid turning this switch off when output of the Electrofisher is on. Time/seconds Counter: Located bottom right. This counter indicates electrofishing time in seconds. It may be reset ...
Variable-frequency drive
A variable-frequency drive (VFD) (also termed adjustable-frequency drive, variable-speed drive, AC drive, micro drive or inverter drive) is a type of adjustable-speed drive used in electro-mechanical drive systems to control AC motor speed and torque by varying motor input frequency and voltage.VFDs are used in applications ranging from small appliances to the largest of mine mill drives and compressors. However, around 25% of the world's electrical energy is consumed by electric motors in industrial applications, which are especially conducive for energy savings using VFDs in centrifugal load service, and VFDs' global market penetration for all applications is still relatively small. That lack of penetration highlights significant energy efficiency improvement opportunities for retrofitted and new VFD installations.Over the last four decades, power electronics technology has reduced VFD cost and size and has improved performance through advances in semiconductor switching devices, drive topologies, simulation and control techniques, and control hardware and software.VFDs are available in a number of different low- and medium-voltage AC-AC and DC-AC topologies.