Generator circuit breakers have special requirements for
... rate-of-rise. One may prefer to install surge protective devices for many other reasons, but they are not needed to reduce the RRRV in order for the vacuum interrupter to clear. These TRV conditions are so severe that even the world’s best high power laboratories cannot construct direct test circuit ...
... rate-of-rise. One may prefer to install surge protective devices for many other reasons, but they are not needed to reduce the RRRV in order for the vacuum interrupter to clear. These TRV conditions are so severe that even the world’s best high power laboratories cannot construct direct test circuit ...
Isolation and Regulation Transformer Operating Principles and
... transformers must be carefully selected and operated at their rated load to provide the design benefits. Again, no protection against common mode noise is provided and by transformer action a rapidly collapsing magnetic field due to a power failure, or fuse clearing can generate lethal transients at ...
... transformers must be carefully selected and operated at their rated load to provide the design benefits. Again, no protection against common mode noise is provided and by transformer action a rapidly collapsing magnetic field due to a power failure, or fuse clearing can generate lethal transients at ...
Evaluates: MAX16834 MAX16834 Evaluation Kit General Description Features
... driver controller in a step-up (boost) configuration and optional step-up/step-down (buck-boost) operation. The MAX16834 EV kit operates from a DC supply voltage of 7V to 28V and requires up to 5A. The MAX16834 EV kit circuit is configured to deliver up to 1A of current into series LEDs with a maxim ...
... driver controller in a step-up (boost) configuration and optional step-up/step-down (buck-boost) operation. The MAX16834 EV kit operates from a DC supply voltage of 7V to 28V and requires up to 5A. The MAX16834 EV kit circuit is configured to deliver up to 1A of current into series LEDs with a maxim ...
M. Zhu, D.J. Perreault, V. Caliskan, T.C. Neugebauer, S. Guttowski, and J.G. Kassakian, “Design and Evaluation of Feedforward Active Ripple Filters,” IEEE Transactions on Power Electronics , March 2005, pp. 276-285.
... Successful implementation of a feedforward current-ripple cancellation scheme (such as illustrated in Fig. 1) requires that the ripple current be both sensed and replicated with great fidelity. Therefore, the current sensor and injector must each have wide bandwidth, an accurately known gain with lo ...
... Successful implementation of a feedforward current-ripple cancellation scheme (such as illustrated in Fig. 1) requires that the ripple current be both sensed and replicated with great fidelity. Therefore, the current sensor and injector must each have wide bandwidth, an accurately known gain with lo ...
TVSS Series STABILINE Transient Voltage Surge Suppressors ®
... fuse array rated at 200 kAIC (patented) - All paths and elements protected via fusing - Expanded safety and reliability via a fuse block array that prevents “cross-arcing” which may occur in designs without independently isolated fuses • Separately fused MOVs — ensures seamless product performance i ...
... fuse array rated at 200 kAIC (patented) - All paths and elements protected via fusing - Expanded safety and reliability via a fuse block array that prevents “cross-arcing” which may occur in designs without independently isolated fuses • Separately fused MOVs — ensures seamless product performance i ...
Tektronix AM503 current probe system, user-manual
... Tektronix warrants that this product will be free from defects in materials and workmanship for a period of one (1) year from the date of shipment. If any such product proves defective during this warranty period, Tektronix, at its option, either will repair the defective product without charge for ...
... Tektronix warrants that this product will be free from defects in materials and workmanship for a period of one (1) year from the date of shipment. If any such product proves defective during this warranty period, Tektronix, at its option, either will repair the defective product without charge for ...
Load, Switch, and Commutation Considerations
... where toff is the turn-off period as shown in figure 6.4. The average power loss due to switching, which is required for the thermal design outlined in chapter 5, is obtained by multiplying energy loss W by the switching frequency fs. That is, the turn-on switching loss is given by Pon = I mVs t o ...
... where toff is the turn-off period as shown in figure 6.4. The average power loss due to switching, which is required for the thermal design outlined in chapter 5, is obtained by multiplying energy loss W by the switching frequency fs. That is, the turn-on switching loss is given by Pon = I mVs t o ...
A METHOD FOR CHARACTERIZATION OF THREE
... connected between phase and neutral, but the number of dips originating in the low-voltage system is small. Therefore the vast majority of three-phase unbalanced dips at the equipment terminals are of type C or type D, so that a distinction between type C and D is sufficient, together with a charact ...
... connected between phase and neutral, but the number of dips originating in the low-voltage system is small. Therefore the vast majority of three-phase unbalanced dips at the equipment terminals are of type C or type D, so that a distinction between type C and D is sufficient, together with a charact ...
Aalborg Universitet Inducverters: PLL-Less Converters with Auto-Synchronization and Emulated Inertia Capability
... and also its self-start capability is its overall variable and adaptive equivalent impedance which provides a variable output power, almost proportional to the rotor slip, and enables it to adapt itself to load power and grid frequency variations. However, during the start-up process the output torq ...
... and also its self-start capability is its overall variable and adaptive equivalent impedance which provides a variable output power, almost proportional to the rotor slip, and enables it to adapt itself to load power and grid frequency variations. However, during the start-up process the output torq ...
HGTG30N60A4D 600V, SMPS Series N
... is the turn-on loss when a typical diode is used in the test circuit and the diode is at the same TJ as the IGBT. The diode type is specified in Figure 24. 3. Turn-Off Energy Loss (EOFF) is defined as the integral of the instantaneous power loss starting at the trailing edge of the input pulse and e ...
... is the turn-on loss when a typical diode is used in the test circuit and the diode is at the same TJ as the IGBT. The diode type is specified in Figure 24. 3. Turn-Off Energy Loss (EOFF) is defined as the integral of the instantaneous power loss starting at the trailing edge of the input pulse and e ...
Overcurrent and Ground Fault Protection
... protection characteristics (IDMT) can also be selected and activated. ...
... protection characteristics (IDMT) can also be selected and activated. ...
Untitled
... I would like to thank my supervisor Ing. et Ing. Jan Pígl for helpfulness and valuable advices during writing my diploma thesis. ...
... I would like to thank my supervisor Ing. et Ing. Jan Pígl for helpfulness and valuable advices during writing my diploma thesis. ...
ZXLD1350 30V 350mA LED DRIVER with AEC
... The device, in conjunction with the coil (L1) and current sense resistor (RS), forms a self-oscillating continuous-mode buck converter. Device operation (Refer to block diagram and Figure 1 - Operating waveforms) Operation can be best understood by assuming that the ADJ pin of the device is unconnec ...
... The device, in conjunction with the coil (L1) and current sense resistor (RS), forms a self-oscillating continuous-mode buck converter. Device operation (Refer to block diagram and Figure 1 - Operating waveforms) Operation can be best understood by assuming that the ADJ pin of the device is unconnec ...
New Method for Comparison of Chopped Waveforms in Impulse
... delays as large as 1 µs appear from the triggered time to the effective arc generation. In addition, the time dispersion increases [5]. To avoid these problems, a multiple chopping device was proposed [6]. It has several sphere gaps, connected in series, to reduce the voltage and the gap distance be ...
... delays as large as 1 µs appear from the triggered time to the effective arc generation. In addition, the time dispersion increases [5]. To avoid these problems, a multiple chopping device was proposed [6]. It has several sphere gaps, connected in series, to reduce the voltage and the gap distance be ...
Mercury-arc valve
A mercury-arc valve or mercury-vapor rectifier or (UK) mercury-arc rectifier is a type of electrical rectifier used for converting high-voltage or high-current alternating current (AC) into direct current (DC). It is a type of cold cathode gas-filled tube, but is unusual in that the cathode, instead of being solid, is made from a pool of liquid mercury and is therefore self-restoring. As a result, mercury-arc valves were much more rugged, long-lasting and could carry much higher currents than most other types of gas discharge tube.Invented in 1902 by Peter Cooper Hewitt, mercury-arc rectifiers were used to provide power for industrial motors, electric railways, streetcars, and electric locomotives, as well as for radio transmitters and for high-voltage direct current (HVDC) power transmission. They were the primary method of high power rectification before the advent of semiconductor rectifiers, such as diodes, thyristors and gate turn-off thyristors (GTOs) in the 1970s.