Protection and control HV/MV substation Sepam
... c The communication function option can be used for remote setting, remote metering, remote annunciation and remote control via a two-wire link with a central computer for centralized control. c Setting and testing are extremely simple: direct readout of primary current and voltage and simple testin ...
... c The communication function option can be used for remote setting, remote metering, remote annunciation and remote control via a two-wire link with a central computer for centralized control. c Setting and testing are extremely simple: direct readout of primary current and voltage and simple testin ...
Figure 1 - Texas Instruments
... The key circuit parameters which is determined in the selection of the device specification is the normal operating current of the circuit under both charge and discharge; the maximum fault voltage and the secondary protection circuit response time to an over voltage condition. Based on the system r ...
... The key circuit parameters which is determined in the selection of the device specification is the normal operating current of the circuit under both charge and discharge; the maximum fault voltage and the secondary protection circuit response time to an over voltage condition. Based on the system r ...
Basic Circuit Elements
... Let us consider the first three basic circuit elements, one at a time. We begin with voltage sources. A voltage source is an element where the voltage across the terminals is determined by the value of that voltage source. The value of the voltage is the defining characteristic of a voltage source. ...
... Let us consider the first three basic circuit elements, one at a time. We begin with voltage sources. A voltage source is an element where the voltage across the terminals is determined by the value of that voltage source. The value of the voltage is the defining characteristic of a voltage source. ...
AN2983
... AN2983 Application note Constant current inverse buck LED driver using L6562A Introduction Whenever a lighting application, such as street lighting for example, requires an elevated number of LEDs, there are basically two solutions: the first is to connect all the diodes in series in a single "strin ...
... AN2983 Application note Constant current inverse buck LED driver using L6562A Introduction Whenever a lighting application, such as street lighting for example, requires an elevated number of LEDs, there are basically two solutions: the first is to connect all the diodes in series in a single "strin ...
Solutions of problems
... QuickTime™ and a TIFF (U ncompressed) decompressor are needed to see this pi cture. ...
... QuickTime™ and a TIFF (U ncompressed) decompressor are needed to see this pi cture. ...
electric current
... (a) What is electrical power? (b) State how power is related to other electrical quantities. (c) Calculate the current drawn by a device of power 2.5kW when connected to the 230V mains supply. What is the maximum power of an appliance that should be used with a 3A fuse? How much electrical energy is ...
... (a) What is electrical power? (b) State how power is related to other electrical quantities. (c) Calculate the current drawn by a device of power 2.5kW when connected to the 230V mains supply. What is the maximum power of an appliance that should be used with a 3A fuse? How much electrical energy is ...
Low Capacitance ESD Protection for High Speed Video Interface
... clearly defined in the spec how to specify a clamping voltage at the device level. ON Semiconductor has developed a way to examine the entire voltage waveform across the ESD protection diode over the time domain of an ESD pulse in the form of an oscilloscope screenshot, which can be found on the dat ...
... clearly defined in the spec how to specify a clamping voltage at the device level. ON Semiconductor has developed a way to examine the entire voltage waveform across the ESD protection diode over the time domain of an ESD pulse in the form of an oscilloscope screenshot, which can be found on the dat ...
Sample Report
... The voltage waveform is basically sinusoidal and approaching 5% total harmonic distortion (THD) which is at the level where further investigation or corrective action may be warranted. The dominant loads on this transformer are single-phase computer loads as demonstrated by the pulsed nature of the ...
... The voltage waveform is basically sinusoidal and approaching 5% total harmonic distortion (THD) which is at the level where further investigation or corrective action may be warranted. The dominant loads on this transformer are single-phase computer loads as demonstrated by the pulsed nature of the ...
permanent-magnet moving-coil movement
... Whenever electrons flow through a conductor, a magnetic field proportional to the current is created. This effect is useful for measuring current and is employed in many practical meters. Since most of the meters in use have D'Arsonval movements, which operate because of the magnetic effect, only th ...
... Whenever electrons flow through a conductor, a magnetic field proportional to the current is created. This effect is useful for measuring current and is employed in many practical meters. Since most of the meters in use have D'Arsonval movements, which operate because of the magnetic effect, only th ...
FST6800 10-Bit Bus Switch with Precharged Outputs FST6 800 1
... Note 4: Typical values are at VCC = 5.0V and T A= +25°C Note 5: Measured by the voltage drop between A and B pins at the indicated current through the switch. On resistance is determined by the lower of the voltages on the two (A or B) pins. ...
... Note 4: Typical values are at VCC = 5.0V and T A= +25°C Note 5: Measured by the voltage drop between A and B pins at the indicated current through the switch. On resistance is determined by the lower of the voltages on the two (A or B) pins. ...
SiC “Super” Junction Transistors Offer Breakthrough High Temp
... avoid spurious IGBT conduction during the dynamic testing. A 1 µF charging capacitor, a 150 µH inductor, 22 Ω Gate resistor and a supply voltage of 800 V were used in the testing process. A commercial standard IGBT Gate driver with an output voltage swing from -8 V to 15 V is used for driving the Si ...
... avoid spurious IGBT conduction during the dynamic testing. A 1 µF charging capacitor, a 150 µH inductor, 22 Ω Gate resistor and a supply voltage of 800 V were used in the testing process. A commercial standard IGBT Gate driver with an output voltage swing from -8 V to 15 V is used for driving the Si ...
TRIAC
TRIAC, from triode for alternating current, is a genericized tradename for an electronic component that can conduct current in either direction when it is triggered (turned on), and is formally called a bidirectional triode thyristor or bilateral triode thyristor.TRIACs are a subset of thyristors and are closely related to silicon controlled rectifiers (SCR). However, unlike SCRs, which are unidirectional devices (that is, they can conduct current only in one direction), TRIACs are bidirectional and so allow current in either direction. Another difference from SCRs is that TRIAC current can be enabled by either a positive or negative current applied to its gate electrode, whereas SCRs can be triggered only by positive current into the gate. To create a triggering current, a positive or negative voltage has to be applied to the gate with respect to the MT1 terminal (otherwise known as A1).Once triggered, the device continues to conduct until the current drops below a certain threshold called the holding current.The bidirectionality makes TRIACs very convenient switches for alternating-current (AC) circuits, also allowing them to control very large power flows with milliampere-scale gate currents. In addition, applying a trigger pulse at a controlled phase angle in an AC cycle allows control of the percentage of current that flows through the TRIAC to the load (phase control), which is commonly used, for example, in controlling the speed of low-power induction motors, in dimming lamps, and in controlling AC heating resistors.