Requirements Specification
... from the charger. The battery was then discharged across a resistive a load to 12 V, and charged back up again, this time at 8 A. No noticeable temperature increase of the battery or any difficulties in charging were detected at that current. Headlight – I tested the headlight quickly with 4 AAA ba ...
... from the charger. The battery was then discharged across a resistive a load to 12 V, and charged back up again, this time at 8 A. No noticeable temperature increase of the battery or any difficulties in charging were detected at that current. Headlight – I tested the headlight quickly with 4 AAA ba ...
HT2413701376
... the Z-source inverter, respectively, when the battery bank voltage declines by 20% of its normal voltage. The waveform distortion can be observed for the traditional UPS, whereas the sinusoidal waveform can be kept for the proposed UPS. Fig. 9(c) further shows the strong regulation capability of the ...
... the Z-source inverter, respectively, when the battery bank voltage declines by 20% of its normal voltage. The waveform distortion can be observed for the traditional UPS, whereas the sinusoidal waveform can be kept for the proposed UPS. Fig. 9(c) further shows the strong regulation capability of the ...
LeCroy Current Probes Datasheet
... The PMA2 software option is used to make critical power switching device measurements, perform control loop modulation analysis, and measure power harmonics. With PMA2, the display and setup of voltage waveforms, current waveforms, and necessary measurement parameters are done automatically. Importa ...
... The PMA2 software option is used to make critical power switching device measurements, perform control loop modulation analysis, and measure power harmonics. With PMA2, the display and setup of voltage waveforms, current waveforms, and necessary measurement parameters are done automatically. Importa ...
Surface DC Voltmeter Model SVM2 Quick Start Instructions Surface
... harm the meter, but it will require a "Reset" to continue to make accurate readings. Therefore, avoid touching the disc.) To test a large area, begin as above, but scan the area (at approximately a constant distance-- The preferred distance is also 1” or 25 mm. The magnetic spacer rod can be used. I ...
... harm the meter, but it will require a "Reset" to continue to make accurate readings. Therefore, avoid touching the disc.) To test a large area, begin as above, but scan the area (at approximately a constant distance-- The preferred distance is also 1” or 25 mm. The magnetic spacer rod can be used. I ...
LR9641 DESCRIPTION FEATURES
... high efficiency operation. An OVP function protects the IC itself and its downstream system against input voltage surges. With this OVP function, the IC can stand off input voltage as high as 42V, making it an ideal solution for industrial applications such as smart meters as well as automotive appl ...
... high efficiency operation. An OVP function protects the IC itself and its downstream system against input voltage surges. With this OVP function, the IC can stand off input voltage as high as 42V, making it an ideal solution for industrial applications such as smart meters as well as automotive appl ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
... pass through both the upslope and the down slope[4]. As compared with the normal mode, the lower maximum velocity results in nearly double operation time. An important feature must be pointed out that the common leg current is significantly lower than any phase currents. This feature can prevent the ...
... pass through both the upslope and the down slope[4]. As compared with the normal mode, the lower maximum velocity results in nearly double operation time. An important feature must be pointed out that the common leg current is significantly lower than any phase currents. This feature can prevent the ...
Loading Considerations when Paralleling Transformers
... Typically, transformers should not be operated in parallel when the following conditions exist: 1. When the division of load is such that, with the total load current equal to the combined kVA rating of the transformers, one of the transformers is overloaded. 2. When the no-load circulating currents ...
... Typically, transformers should not be operated in parallel when the following conditions exist: 1. When the division of load is such that, with the total load current equal to the combined kVA rating of the transformers, one of the transformers is overloaded. 2. When the no-load circulating currents ...
Anant Kumar Tiwari, Miss. Durga Sharma, Mr.Vijay Kumar Sharma
... It shows input waveform of voltage and current with phase difference. Both of the waveforms are fed to zero crossing detectors, which give square waves in digital format. These digital waveforms are used by microcontroller to calculate power factor. Microcontroller takes decision to switch appropria ...
... It shows input waveform of voltage and current with phase difference. Both of the waveforms are fed to zero crossing detectors, which give square waves in digital format. These digital waveforms are used by microcontroller to calculate power factor. Microcontroller takes decision to switch appropria ...
EEEE 381 Lab 6 Frequency Response - RIT
... Figure 3 shows representative magnitude (top) and phase (bottom) plots for this op-amp. It can be seen from Figure 3 that at the point where the gain magnitude is unity, or 0 dB, there is a phase shift of roughly –220, or a phase margin of –40 compared to a critical value of –180, which is indica ...
... Figure 3 shows representative magnitude (top) and phase (bottom) plots for this op-amp. It can be seen from Figure 3 that at the point where the gain magnitude is unity, or 0 dB, there is a phase shift of roughly –220, or a phase margin of –40 compared to a critical value of –180, which is indica ...
ON THE DESIGN OF LOW-POWER ... RESISTIVE SENSORS Ramon Casanella
... the proposed approach. When designing voltage dividers for maximal sensitivity, their output voltage is centred around Vref/2. This offset can be cancelled out by high-pass filtering but for very low-frequency measurements this becomes impractical. The common solution is to design a Wheatstone bridg ...
... the proposed approach. When designing voltage dividers for maximal sensitivity, their output voltage is centred around Vref/2. This offset can be cancelled out by high-pass filtering but for very low-frequency measurements this becomes impractical. The common solution is to design a Wheatstone bridg ...
weighted total harmonic distortion
... Abstract- This paper presents harmonic and power quality analysis of two level and three level Diode Clamped Voltage Source Inverter (DCVSI). Purpose of analysis is to investigate performance of VSI in WECS in terms of power quality fed to grid, filter requirement and DC bus utilization. Modulation ...
... Abstract- This paper presents harmonic and power quality analysis of two level and three level Diode Clamped Voltage Source Inverter (DCVSI). Purpose of analysis is to investigate performance of VSI in WECS in terms of power quality fed to grid, filter requirement and DC bus utilization. Modulation ...
TSS521 Meter-Bus Transceiver
... VB to ground (GND) delivers the bus voltage VVB less the voltage drop over the rectifier BR. The voltage comparator TC2 monitors the bus voltage. If the voltage VVB > VSTC + 0.6 V, then the output PF = 1. The output level PF = 0 (power fail) provides a warning of a critical voltage drop to the micro ...
... VB to ground (GND) delivers the bus voltage VVB less the voltage drop over the rectifier BR. The voltage comparator TC2 monitors the bus voltage. If the voltage VVB > VSTC + 0.6 V, then the output PF = 1. The output level PF = 0 (power fail) provides a warning of a critical voltage drop to the micro ...
8.0 A, 400 V NPN Bipolar Power Transistor
... operation; i.e., the transistor must not be subjected to greater dissipation than the curves indicate. The data of Figure 6 is based on TC = 25°C; TJ(pk) is variable depending on power level. Second breakdown pulse limits are valid for duty cycles to 10% but must be derated when TC ≥ 25°C. Second br ...
... operation; i.e., the transistor must not be subjected to greater dissipation than the curves indicate. The data of Figure 6 is based on TC = 25°C; TJ(pk) is variable depending on power level. Second breakdown pulse limits are valid for duty cycles to 10% but must be derated when TC ≥ 25°C. Second br ...
Controlling DC Motors
... −For example, a drill turning a screw has a much lower rpm speed than when it is in the no-load situation. ...
... −For example, a drill turning a screw has a much lower rpm speed than when it is in the no-load situation. ...
PNIMNiPE_nr56
... are various professional texts dealing with harmonics, their origin, influences and possibilities of their reducing, for example [1, 2, 3]. One of the main sources of harmonics is AC adjustable speed drive using in its structure a semiconductor converter. Nowadays such type of this drive is widely p ...
... are various professional texts dealing with harmonics, their origin, influences and possibilities of their reducing, for example [1, 2, 3]. One of the main sources of harmonics is AC adjustable speed drive using in its structure a semiconductor converter. Nowadays such type of this drive is widely p ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
... system behaves exactly as a single large converter. However, it can be shown that if the cells are clocked independently (and hence operate at slightly different frequencies) as shown in Fig. 2(b), the rms input and output current ripples will be reduced by a factor of due to the passive ripple canc ...
... system behaves exactly as a single large converter. However, it can be shown that if the cells are clocked independently (and hence operate at slightly different frequencies) as shown in Fig. 2(b), the rms input and output current ripples will be reduced by a factor of due to the passive ripple canc ...
Film Capacitors - Power Factor Correction - DeltaCap Single
... rule, EPCOS is either unfamiliar with individual customer applications or less familiar with them than the customers themselves. For these reasons, it is always ultimately incumbent on the customer to check and decide whether an EPCOS product with the properties described in the product specificatio ...
... rule, EPCOS is either unfamiliar with individual customer applications or less familiar with them than the customers themselves. For these reasons, it is always ultimately incumbent on the customer to check and decide whether an EPCOS product with the properties described in the product specificatio ...
489 Generator Protection System
... CT saturation detection algorithms maintain immunity to saturation conditions that may be caused due to external disturbances through the use of a directional check that provides additional supervision and ensures the fault is internal to the generator before triggering it to trip. ...
... CT saturation detection algorithms maintain immunity to saturation conditions that may be caused due to external disturbances through the use of a directional check that provides additional supervision and ensures the fault is internal to the generator before triggering it to trip. ...
EEE 118-2531
... (secondary) and the second one with a delta-winding of 3Φ-3winding Transformer. Moreover, the deltaconnected secondary must have times the turns compared to the wye-connected secondary and the pulse train to one converter is shifted by 30 degrees with respect to the other [3,8]. In this compensation ...
... (secondary) and the second one with a delta-winding of 3Φ-3winding Transformer. Moreover, the deltaconnected secondary must have times the turns compared to the wye-connected secondary and the pulse train to one converter is shifted by 30 degrees with respect to the other [3,8]. In this compensation ...
Three-phase electric power
Three-phase electric power is a common method of alternating-current electric power generation, transmission, and distribution. It is a type of polyphase system and is the most common method used by electrical grids worldwide to transfer power. It is also used to power large motors and other heavy loads. A three-phase system is usually more economical than an equivalent single-phase or two-phase system at the same line to ground voltage because it uses less conductor material to transmit electrical power.The three-phase system was independently invented by Galileo Ferraris, Mikhail Dolivo-Dobrovolsky, Jonas Wenström and Nikola Tesla in the late 1880s.