Overcurrent and Ground Fault Protection
... 2.1.4. Directional Overcurrent Relays When the power system is not radial (source on one side of the line), an overcurrent relay may not be able to provide adequate protection. This type of relay operates in on direction of current flow and blocks in the opposite direction. Three conditions must be ...
... 2.1.4. Directional Overcurrent Relays When the power system is not radial (source on one side of the line), an overcurrent relay may not be able to provide adequate protection. This type of relay operates in on direction of current flow and blocks in the opposite direction. Three conditions must be ...
42_17
... Switched Equivalent Resistance Model The above model assumes the device is an ideal constant current source. 1) This is not true below VOUT-SAT-D and leads to in accuracies. 2) Combining ideal current sources in networks with series and parallel connections is problematic. Instead define an equivale ...
... Switched Equivalent Resistance Model The above model assumes the device is an ideal constant current source. 1) This is not true below VOUT-SAT-D and leads to in accuracies. 2) Combining ideal current sources in networks with series and parallel connections is problematic. Instead define an equivale ...
Electrical Installations Lab AEL-1 Advanced Electrical Laboratories (AEL-LABS):
... Computer Aided Instruction Software - AEL-S-INST. Instructor Software: This software is recommended as a comprehensive, multi-level, instructional tool that directs students to work independently and at their own speed, while also freeing the instructor to provide specific guidance whenever needed. ...
... Computer Aided Instruction Software - AEL-S-INST. Instructor Software: This software is recommended as a comprehensive, multi-level, instructional tool that directs students to work independently and at their own speed, while also freeing the instructor to provide specific guidance whenever needed. ...
Temperature Measurements with Thermocouples
... CJC errors represent the difference between the actual temperature at the point where the thermocouple is connected to the measurement device (the cold-junction temperature), and the measured temperature by the device. The CJC error is roughly a 1 to 1 contributor to the accuracy of the temperature ...
... CJC errors represent the difference between the actual temperature at the point where the thermocouple is connected to the measurement device (the cold-junction temperature), and the measured temperature by the device. The CJC error is roughly a 1 to 1 contributor to the accuracy of the temperature ...
lecture1425873259
... The purpose of an Electric Power System is to generate and supply electrical energy to consumers. The power system should be designed and managed to deliver this energy to the utilization points with both reliability and economically The capital investment involved in power system for the generation ...
... The purpose of an Electric Power System is to generate and supply electrical energy to consumers. The power system should be designed and managed to deliver this energy to the utilization points with both reliability and economically The capital investment involved in power system for the generation ...
e Shar k®100 & 100T Electro Industries/GaugeTech Installation & Operation Manual
... neutral. The three-phase wires connect to the three phases (as shown in Fig. 1.1). The neutral wire is typically tied to the ground or center point of the wye (refer to Figure 1.1). In many industrial applications the facility will be fed with a four-wire wye service but only three wires will be run ...
... neutral. The three-phase wires connect to the three phases (as shown in Fig. 1.1). The neutral wire is typically tied to the ground or center point of the wye (refer to Figure 1.1). In many industrial applications the facility will be fed with a four-wire wye service but only three wires will be run ...
LCR Measurement Primer
... measurement sensitivity is apt to be higher. Other cases where parallel measurements are preferred are when measuring very low values of capacitance, when making measurements on dielectric and magnetic materials, and, of course, when trying to determine the separate values of two components in paral ...
... measurement sensitivity is apt to be higher. Other cases where parallel measurements are preferred are when measuring very low values of capacitance, when making measurements on dielectric and magnetic materials, and, of course, when trying to determine the separate values of two components in paral ...
Z4905147150
... area efficiency and IR drop. The sleep transistor is optimized in gate length, width, finger size and body bias to achieve high switch and area efficiencies, and low leakage current and IR drop. Sleep mode refers to a low power mode for electronic devices such as computers, televisions, and remote c ...
... area efficiency and IR drop. The sleep transistor is optimized in gate length, width, finger size and body bias to achieve high switch and area efficiencies, and low leakage current and IR drop. Sleep mode refers to a low power mode for electronic devices such as computers, televisions, and remote c ...
EE6201
... Ohm’s Law – Kirchoffs laws – DC and AC Circuits – Resistors in series and parallel circuits – Mesh current and node voltage method of analysis for D.C and A.C. circuits – Phasor Diagram – Power, Power Factor and Energy UNIT II NETWORK REDUCTION AND NETWORK THEOREMS FOR DC AND AC CIRCUITS 12 Network ...
... Ohm’s Law – Kirchoffs laws – DC and AC Circuits – Resistors in series and parallel circuits – Mesh current and node voltage method of analysis for D.C and A.C. circuits – Phasor Diagram – Power, Power Factor and Energy UNIT II NETWORK REDUCTION AND NETWORK THEOREMS FOR DC AND AC CIRCUITS 12 Network ...
S280-70-2_10000
... Metering functions include demand and instantaneous current on a per-phase basis, instantaneous voltage and power factor on a per-phase basis, and power (real, reactive, apparent). The front panel LCD display is used to configure the operating settings for the control. It is also used to display met ...
... Metering functions include demand and instantaneous current on a per-phase basis, instantaneous voltage and power factor on a per-phase basis, and power (real, reactive, apparent). The front panel LCD display is used to configure the operating settings for the control. It is also used to display met ...
MCP809/MCP810 3-Pin Microprocessor Reset
... The MCP809/810 are relatively immune to short negative-going transients or glitches on VCC. Figure 10 shows the maximum pulse width a negative-going VCC transient can have without causing a reset pulse. In general, as the magnitude of the transient increases, going further below the threshold, the m ...
... The MCP809/810 are relatively immune to short negative-going transients or glitches on VCC. Figure 10 shows the maximum pulse width a negative-going VCC transient can have without causing a reset pulse. In general, as the magnitude of the transient increases, going further below the threshold, the m ...
Digitax ST Tech Data Iss2.book
... Control Techniques is committed to minimising the environmental impacts of its manufacturing operations and of its products throughout their life cycle. To this end, we operate an Environmental Management System (EMS) which is certified to the International Standard ISO 14001. Further information on ...
... Control Techniques is committed to minimising the environmental impacts of its manufacturing operations and of its products throughout their life cycle. To this end, we operate an Environmental Management System (EMS) which is certified to the International Standard ISO 14001. Further information on ...
MAX220–MAX249 +5V-Powered, Multichannel RS
... High slew rate, int. caps, two shutdown modes High slew rate, int. caps, three shutdown modes High slew rate, int. caps, nine operating modes High slew rate, selective half-chip enables Available in quad flatpack package ...
... High slew rate, int. caps, two shutdown modes High slew rate, int. caps, three shutdown modes High slew rate, int. caps, nine operating modes High slew rate, selective half-chip enables Available in quad flatpack package ...
ZAPI AC3-AC4 Manual
... Digital control based upon a microcontroller Voltage ..................................................................... 36/48 V; 72/80 V; 96 V; 120 V Maximum current (36/48 V)........................................................ 600 A (RMS) for 3' Maximum current (72/80 V)..................... ...
... Digital control based upon a microcontroller Voltage ..................................................................... 36/48 V; 72/80 V; 96 V; 120 V Maximum current (36/48 V)........................................................ 600 A (RMS) for 3' Maximum current (72/80 V)..................... ...
S280-70-2
... safe operation of the equipment described. Only competent technicians who are familiar with this equipment should install, operate, and service it. A competent technician has these qualifications: • Is thoroughly familiar with these instructions. • Is trained in industry-accepted high- and low-v ...
... safe operation of the equipment described. Only competent technicians who are familiar with this equipment should install, operate, and service it. A competent technician has these qualifications: • Is thoroughly familiar with these instructions. • Is trained in industry-accepted high- and low-v ...
Rectifier
A rectifier is an electrical device that converts alternating current (AC), which periodically reverses direction, to direct current (DC), which flows in only one direction. The process is known as rectification. Physically, rectifiers take a number of forms, including vacuum tube diodes, mercury-arc valves, copper and selenium oxide rectifiers, semiconductor diodes, silicon-controlled rectifiers and other silicon-based semiconductor switches. Historically, even synchronous electromechanical switches and motors have been used. Early radio receivers, called crystal radios, used a ""cat's whisker"" of fine wire pressing on a crystal of galena (lead sulfide) to serve as a point-contact rectifier or ""crystal detector"".Rectifiers have many uses, but are often found serving as components of DC power supplies and high-voltage direct current power transmission systems. Rectification may serve in roles other than to generate direct current for use as a source of power. As noted, detectors of radio signals serve as rectifiers. In gas heating systems flame rectification is used to detect presence of a flame.Because of the alternating nature of the input AC sine wave, the process of rectification alone produces a DC current that, though unidirectional, consists of pulses of current. Many applications of rectifiers, such as power supplies for radio, television and computer equipment, require a steady constant DC current (as would be produced by a battery). In these applications the output of the rectifier is smoothed by an electronic filter (usually a capacitor) to produce a steady current.More complex circuitry that performs the opposite function, converting DC to AC, is called an inverter.