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... changing control function block that could be implemented and it would be possible for Wärtsilä to start using this function instead of manual control. Wärtsilä synchronous generators have brushless excitation systems that are controlled by an AVR Unitrol 1000-15 or Unitrol 1020. Unitrol keeps the g ...
... changing control function block that could be implemented and it would be possible for Wärtsilä to start using this function instead of manual control. Wärtsilä synchronous generators have brushless excitation systems that are controlled by an AVR Unitrol 1000-15 or Unitrol 1020. Unitrol keeps the g ...
MIG/MAG Welding
... fluid state of the molten pool prevents it from being used for welding steels in positions other than flat or horizontal/vertical. Aluminium, however, can be welded in all positions using spray transfer. There are two types of spray transfer. The true spray is obtained when the shielding gas is argo ...
... fluid state of the molten pool prevents it from being used for welding steels in positions other than flat or horizontal/vertical. Aluminium, however, can be welded in all positions using spray transfer. There are two types of spray transfer. The true spray is obtained when the shielding gas is argo ...
8. TESTING POWER TRANSFORMERS
... batteries have high internal resistance and don’t need an extra series resistor. Arc flash on a power transformer can be limited if the transformer windings are short circuited on the side opposite those being flashed through. WARNING! A transformer winding that is carrying DC current will generate ...
... batteries have high internal resistance and don’t need an extra series resistor. Arc flash on a power transformer can be limited if the transformer windings are short circuited on the side opposite those being flashed through. WARNING! A transformer winding that is carrying DC current will generate ...
YNV05T10-0 - Power-One
... between Vout of the converter and the load. The SENSE (Pin 3) pin should be connected at the load or at the point where regulation is required (see Fig. D). There is no sense feature on the output GND return pin, where a solid ground plane is recommended to provide a low voltage drop. If remote sens ...
... between Vout of the converter and the load. The SENSE (Pin 3) pin should be connected at the load or at the point where regulation is required (see Fig. D). There is no sense feature on the output GND return pin, where a solid ground plane is recommended to provide a low voltage drop. If remote sens ...
Power and distribution transformers
... calculation and CAD programming. They are oil-type transformers filled with mineral, silicone or vegetable oil. They operate at the fundamental frequency of an alternating current system and are designed to have one or more output windings connected to the rectifier. It is possible to make major cha ...
... calculation and CAD programming. They are oil-type transformers filled with mineral, silicone or vegetable oil. They operate at the fundamental frequency of an alternating current system and are designed to have one or more output windings connected to the rectifier. It is possible to make major cha ...
Protective Relay Application Guide
... the power distribution authority, it is possible to use an accelerated system. This consists of reducing the relay time-delay to a pre-determined minimum value when the fault is on the section immediately downstream. The information required to achieve this is transmitted from the downstream relay t ...
... the power distribution authority, it is possible to use an accelerated system. This consists of reducing the relay time-delay to a pre-determined minimum value when the fault is on the section immediately downstream. The information required to achieve this is transmitted from the downstream relay t ...
7 CONTROL AND PROTECTION OF HYDRO ELECTRIC STATION
... the operators and managers. Type of control equipment and levels of control to be applied to a hydro plant are affected by such factors as number, size and type of turbine and generator. The control equipment for a hydro power plant include control circuits/logic, control devices, indication, instru ...
... the operators and managers. Type of control equipment and levels of control to be applied to a hydro plant are affected by such factors as number, size and type of turbine and generator. The control equipment for a hydro power plant include control circuits/logic, control devices, indication, instru ...
Fujitsu Components Engineering Reference Relays
... double-coil latching type. The polarized type relay is set or reset by supplying a driving pulse larger than the predetermined setting or resetting voltage (current) to the coil. Fig. 1.3 shows an example of the operating characteristics of a polarized latching relay. Usually, a pulse width of aroun ...
... double-coil latching type. The polarized type relay is set or reset by supplying a driving pulse larger than the predetermined setting or resetting voltage (current) to the coil. Fig. 1.3 shows an example of the operating characteristics of a polarized latching relay. Usually, a pulse width of aroun ...
DXTN07100BP5 Features Mechanical Data
... Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. Life support devices or systems are devices or systems which: ...
... Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. Life support devices or systems are devices or systems which: ...
EFFICIENT CONTROL OF THE SERIES RESONANT CONVERTER FOR HIGH FREQUENCY OPERATION
... for the many enlightening discussions concerning all areas of power electronics. In particular I’d like to thank Wilson Eberle, Majid Pahlevaninezhad, Ali Khajehoddin, Zhiliang Zhang, Eric Meyer, Pan Shangzhi, John Lam, Mohammad Agamy, and Pritam Das. I would like to acknowledge the efforts of ePOWE ...
... for the many enlightening discussions concerning all areas of power electronics. In particular I’d like to thank Wilson Eberle, Majid Pahlevaninezhad, Ali Khajehoddin, Zhiliang Zhang, Eric Meyer, Pan Shangzhi, John Lam, Mohammad Agamy, and Pritam Das. I would like to acknowledge the efforts of ePOWE ...
Current measurement in power electronic and
... Current measurement has many applications in power electronics and motor drives. Current measurement is used for control, protection, monitoring, and power management purposes. Parameters such as low cost, accuracy, high current measurement, isolation needs, broad frequency bandwidth, linearity and ...
... Current measurement has many applications in power electronics and motor drives. Current measurement is used for control, protection, monitoring, and power management purposes. Parameters such as low cost, accuracy, high current measurement, isolation needs, broad frequency bandwidth, linearity and ...
differential integrator pixel architecture for dark current
... CMOS Image Sensor (CIS) rapidly became the dominant technology over Charge-CoupledDevice (CCD) in imaging markets. It has many advantages over CCDs such as low power and low cost which is highly desirable for imaging-enabled mobile devices. CMOS Active Pixel Sensor (APS) technology has improved duri ...
... CMOS Image Sensor (CIS) rapidly became the dominant technology over Charge-CoupledDevice (CCD) in imaging markets. It has many advantages over CCDs such as low power and low cost which is highly desirable for imaging-enabled mobile devices. CMOS Active Pixel Sensor (APS) technology has improved duri ...
User Manual - Magna
... or high current sources. Extreme caution must be used under these circumstances. Two or more XR Series power supplies may be connected in series. Regardless of the number of units or the voltage ratings of the series connected power supplies, the voltage potential from any output terminal to chassis ...
... or high current sources. Extreme caution must be used under these circumstances. Two or more XR Series power supplies may be connected in series. Regardless of the number of units or the voltage ratings of the series connected power supplies, the voltage potential from any output terminal to chassis ...
Controlled Switching of HVAC Circuit Breakers: Application
... The controller can treat small variations of the dc control voltage and ambient temperature independently in the calculation of circuit breaker compensation time. . The same holds true for small variations of ambient temperature and operating pressure, in the case of hydraulic- or pneumaticoperated ...
... The controller can treat small variations of the dc control voltage and ambient temperature independently in the calculation of circuit breaker compensation time. . The same holds true for small variations of ambient temperature and operating pressure, in the case of hydraulic- or pneumaticoperated ...
ELEKTRONIKA ELECTRONICS
... 3-phase thyristor inverter of bigger power (60 kVA), within the system rectifier-inverter, was made and put into operation by the “Nikola Tesla” Institute in the Federal Bureau of Statistics in 1968, as their original and proper solution, and first complete system for continous supply (UPS) was desi ...
... 3-phase thyristor inverter of bigger power (60 kVA), within the system rectifier-inverter, was made and put into operation by the “Nikola Tesla” Institute in the Federal Bureau of Statistics in 1968, as their original and proper solution, and first complete system for continous supply (UPS) was desi ...
Unit 14 TRANSFORMERS
... primary and secondary full-load currents usually are not given. The installer must be able to calculate the primary and secondary currents from the nameplate information. When the volt-ampere (or kilovolt-ampere) rating is given, along with the primary voltage, then the primary full-load current can ...
... primary and secondary full-load currents usually are not given. The installer must be able to calculate the primary and secondary currents from the nameplate information. When the volt-ampere (or kilovolt-ampere) rating is given, along with the primary voltage, then the primary full-load current can ...
YNS05S16-0 - Power-One
... Power-One’s point-of-load converters are recommended for use with regulated bus converters in an Intermediate Bus Architecture (IBA). The YNS05S16 non-isolated dc-dc converter delivers up to 16 A of output current in an industry-standard surface-mount package. Operating from a 3.0 to 5.5 VDC input, ...
... Power-One’s point-of-load converters are recommended for use with regulated bus converters in an Intermediate Bus Architecture (IBA). The YNS05S16 non-isolated dc-dc converter delivers up to 16 A of output current in an industry-standard surface-mount package. Operating from a 3.0 to 5.5 VDC input, ...
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.