Distribution High Impedance Fault Location Using Localized Voltage
... harmonic current phase angle with respect to the fundamental phase voltage and comparing it with stored values. Another approach performs system pattern recognition on harmonic current energy levels in the arcing fault. The loss of voltage due to a downed line could also be utilized to detect the fa ...
... harmonic current phase angle with respect to the fundamental phase voltage and comparing it with stored values. Another approach performs system pattern recognition on harmonic current energy levels in the arcing fault. The loss of voltage due to a downed line could also be utilized to detect the fa ...
EE1427 ENGINEERING SCIENCE LABORATORY TASKS
... up to 30kHz, using a suitable scale. Record your results in tabular form and immediately plot a control graph of log10f against 20log10Gv. Your graph should be similar to that of Figure 6.3. If you examine your control graph you will see that for some intervals there is a need to take additional mea ...
... up to 30kHz, using a suitable scale. Record your results in tabular form and immediately plot a control graph of log10f against 20log10Gv. Your graph should be similar to that of Figure 6.3. If you examine your control graph you will see that for some intervals there is a need to take additional mea ...
Advanced Protection, Automation, and Control Functions
... protective relay in real time. This has the advantage that the relay always assigns the transferring feeder to the correct zone or zones and maintains high-speed bus protection, and the CT secondaries do not need to be switched. Combining a higher sampling rate with a greater number of analog inputs ...
... protective relay in real time. This has the advantage that the relay always assigns the transferring feeder to the correct zone or zones and maintains high-speed bus protection, and the CT secondaries do not need to be switched. Combining a higher sampling rate with a greater number of analog inputs ...
API9221EV1 User Guide Issue 3
... (The output USB_BYP remains at 0V.) 7. On the oscilloscope press RUN/STOP so that the sweep is initiated. Within about 20 seconds, but after the sweep is seen to begin, move the link at PL1 to the EN position. The EN\ voltage goes low. Note that the current has increased to about 90mA to 100mA. The ...
... (The output USB_BYP remains at 0V.) 7. On the oscilloscope press RUN/STOP so that the sweep is initiated. Within about 20 seconds, but after the sweep is seen to begin, move the link at PL1 to the EN position. The EN\ voltage goes low. Note that the current has increased to about 90mA to 100mA. The ...
SN65LVDS116 数据资料 dataSheet 下载
... voltage is present on the signal pair. The SN65LVDS116 receiver is like most differential line receivers, in that its output logic state can be indeterminate when the differential input voltage is between –100 mV and 100 mV and within its recommended input common-mode voltage range. Hovever, TI LVDS ...
... voltage is present on the signal pair. The SN65LVDS116 receiver is like most differential line receivers, in that its output logic state can be indeterminate when the differential input voltage is between –100 mV and 100 mV and within its recommended input common-mode voltage range. Hovever, TI LVDS ...
差分放大器系列AD8324 数据手册DataSheet 下载
... used in a single-ended or differential configuration. If the input is used in the differential configuration, the input signals should be 180 degrees out of phase and of equal amplitude. A vernier is used in the input stage for controlling the fine 1 dB gain steps. This stage then drives a DAC, whic ...
... used in a single-ended or differential configuration. If the input is used in the differential configuration, the input signals should be 180 degrees out of phase and of equal amplitude. A vernier is used in the input stage for controlling the fine 1 dB gain steps. This stage then drives a DAC, whic ...
AN-1126: More Boost with Less Stress: the SEPIC
... relatively high (over 10:1) boost ratios. These topologies include ...
... relatively high (over 10:1) boost ratios. These topologies include ...
Preliminary Datasheet General Purpose ITVS, 4 I/Os, CI/O
... devices are designed and built using BCD proprietary process technology. These devices integrate the various diodes, transistors and resistors into the BCD ITVS products. These diodes and transistors feature low parasitic resistance and the diodes also exhibit low capacitance. Using these devices, B ...
... devices are designed and built using BCD proprietary process technology. These devices integrate the various diodes, transistors and resistors into the BCD ITVS products. These diodes and transistors feature low parasitic resistance and the diodes also exhibit low capacitance. Using these devices, B ...
P 1 - 123SeminarsOnly.com
... had 128 bytes of RAM, 4 bytes of on chip ROM, two timers, one serial port, and 4 ports each 8 bits wide all on a single chip. At this time it was referred to as “system on chip”. The 8051 is an 8 bit processor meaning that the CPU can work only on 8 bit at a time. Data larger than 8 bit has to be br ...
... had 128 bytes of RAM, 4 bytes of on chip ROM, two timers, one serial port, and 4 ports each 8 bits wide all on a single chip. At this time it was referred to as “system on chip”. The 8051 is an 8 bit processor meaning that the CPU can work only on 8 bit at a time. Data larger than 8 bit has to be br ...
ZXLD1360 Description Pin Assignments
... Operation can be best understood by assuming that the ADJ pin of the device is unconnected and the voltage on this pin (VADJ) appears directly at the (+) input of the comparator. When input voltage VIN is first applied, the initial current in L1 and RS is zero and there is no output from the current ...
... Operation can be best understood by assuming that the ADJ pin of the device is unconnected and the voltage on this pin (VADJ) appears directly at the (+) input of the comparator. When input voltage VIN is first applied, the initial current in L1 and RS is zero and there is no output from the current ...
SIMATIC S7-200 SMART
... series. These Programmable Logic Controllers (PLC) from Siemens offer a wide range of selection options starting from the most basic logic controller ‘LOGO!’ to powerful SIMATIC S7 series, which are high performance programmable controllers. For specific applications with higher demands on data stor ...
... series. These Programmable Logic Controllers (PLC) from Siemens offer a wide range of selection options starting from the most basic logic controller ‘LOGO!’ to powerful SIMATIC S7 series, which are high performance programmable controllers. For specific applications with higher demands on data stor ...
LTC2376-20 20-Bit, 250ksps, Low Power SAR
... and full-scale code from VREF to 0.9 • VREF. For a typical reference voltage of 5V, the full-scale input range is now 0.5V to 4.5V, which provides adequate headroom for powering the driving amplifier from a single 5.5V supply. ...
... and full-scale code from VREF to 0.9 • VREF. For a typical reference voltage of 5V, the full-scale input range is now 0.5V to 4.5V, which provides adequate headroom for powering the driving amplifier from a single 5.5V supply. ...
T8-470 - Infoscience
... In electrical systems located in regions with high keraunic levels, lightning activity is responsible of more than 80% of the voltage sags that cause apparatus failures [1]-[4]. Consequently, the correlation between relay operations and lightning events is of crucial interest for the power quality i ...
... In electrical systems located in regions with high keraunic levels, lightning activity is responsible of more than 80% of the voltage sags that cause apparatus failures [1]-[4]. Consequently, the correlation between relay operations and lightning events is of crucial interest for the power quality i ...
Distribution Systems, Substations, and Integration of Distributed
... distribution network from a “passive” (local/limited automation, monitoring, and control) system to an “active” (global/integrated, self-monitoring, semiautomated) system that automatically responds to the various dynamics of the electric grid, resulting in higher efficiency, better load management, ...
... distribution network from a “passive” (local/limited automation, monitoring, and control) system to an “active” (global/integrated, self-monitoring, semiautomated) system that automatically responds to the various dynamics of the electric grid, resulting in higher efficiency, better load management, ...
Operating instructions K3G175RC0503 - ebm
... Power supply 230 VAC, 50-60 Hz, see type plate for voltage range ...
... Power supply 230 VAC, 50-60 Hz, see type plate for voltage range ...
Evaluates: MAX8844Z/MAX8844Y MAX8844Z Evaluation Kit General Description Features
... operation. Caution: Do not turn on the power supplies until all connections are completed. 1) Preset the power supply (PS1) to 5V. Turn off the power supply. Do not turn on the power supply until all connections are completed. 2) Preset the power supply (PS2) to 5V. Turn off the power supply. Do not ...
... operation. Caution: Do not turn on the power supplies until all connections are completed. 1) Preset the power supply (PS1) to 5V. Turn off the power supply. Do not turn on the power supply until all connections are completed. 2) Preset the power supply (PS2) to 5V. Turn off the power supply. Do not ...
Nuclear Electronics Lab
... As mentioned earlier, the signals from detectors are very small and must be amplified and filtered in order to reduce the effects of noise in the detector system and in order to accurately measure the height of the pulse. Thus, it might seem logical that a NIM amplifier module should be connected di ...
... As mentioned earlier, the signals from detectors are very small and must be amplified and filtered in order to reduce the effects of noise in the detector system and in order to accurately measure the height of the pulse. Thus, it might seem logical that a NIM amplifier module should be connected di ...
Volume/Weight/Cost Comparison of a 1 MVA 10kV/400V
... delta-wye connection. The electrical part consists of two times three copper (or aluminum) windings and a magnetic core, which is usually made of low-loss silicon steel laminations. While dry-type solutions are available, distribution transformers with higher power ratings are typically immersed in ...
... delta-wye connection. The electrical part consists of two times three copper (or aluminum) windings and a magnetic core, which is usually made of low-loss silicon steel laminations. While dry-type solutions are available, distribution transformers with higher power ratings are typically immersed in ...
DC1646A LTC5564 15GHz RF Power Detector with Comparator
... is capable of driving a 1.7mA load with an output swing range of approximately 295mV to VCC – 1.6V. The standard demonstration circuit 1646A has a unity gain. Therefore, the pins G0 and G1 (or the test point Gain0 and Gain1) are pulling down for the logical Low with R10 = R11 = 10k resistors. The pi ...
... is capable of driving a 1.7mA load with an output swing range of approximately 295mV to VCC – 1.6V. The standard demonstration circuit 1646A has a unity gain. Therefore, the pins G0 and G1 (or the test point Gain0 and Gain1) are pulling down for the logical Low with R10 = R11 = 10k resistors. The pi ...
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.