Design overhead distribution systems
... Overhead transmission Overhead conductors are not covered by insulation. The conductor material is nearly always an aluminium alloy, made into several strands and possibly reinforced with steel strands. Copper was sometimes used for overhead transmission but aluminium is lower in weight for equivale ...
... Overhead transmission Overhead conductors are not covered by insulation. The conductor material is nearly always an aluminium alloy, made into several strands and possibly reinforced with steel strands. Copper was sometimes used for overhead transmission but aluminium is lower in weight for equivale ...
3-Pole and 4-Pole Transfer Switch Switching Characteristics
... * As we examine each option, we must scrutinize the claim of some that 3-pole transfer switches with overlapping neutrals offer a benefit of lower neutral switching transients when compared to 4-pole switches. Are neutral switching transients a problem on a 4-pole system? As we will see, both labora ...
... * As we examine each option, we must scrutinize the claim of some that 3-pole transfer switches with overlapping neutrals offer a benefit of lower neutral switching transients when compared to 4-pole switches. Are neutral switching transients a problem on a 4-pole system? As we will see, both labora ...
C706 Alternator Troubleshooting Guide
... Volt and amp levels fluctuate depending on the battery state of charge. If batteries are in a state of discharge— as after extended cranking time to start the engine— system volts will measure lower than the regulator setpoint after the engine is restarted and system amps will measure higher. This i ...
... Volt and amp levels fluctuate depending on the battery state of charge. If batteries are in a state of discharge— as after extended cranking time to start the engine— system volts will measure lower than the regulator setpoint after the engine is restarted and system amps will measure higher. This i ...
MAX1838 Dual USB Switch with Fault Blanking and Autoreset General Description
... Dual USB Switch with Fault Blanking and Autoreset The MAX1838 is a dual, current-limited USB switch with auxiliary input supply. Each switch meets all IEC specifications for USB ports and is guaranteed to supply 500mA from either of two input supplies. A control pin selects the power source from eit ...
... Dual USB Switch with Fault Blanking and Autoreset The MAX1838 is a dual, current-limited USB switch with auxiliary input supply. Each switch meets all IEC specifications for USB ports and is guaranteed to supply 500mA from either of two input supplies. A control pin selects the power source from eit ...
AN3065
... The divider R3, R6, R11 and R15 provides the L6563S pin #7 (PFC_OK) with the information regarding the output voltage level. It is required by the L6563S output voltage monitoring and disables functions used for PFC protection purposes. If the voltage on pin #7 exceeds 2.5 V, the IC stops switching ...
... The divider R3, R6, R11 and R15 provides the L6563S pin #7 (PFC_OK) with the information regarding the output voltage level. It is required by the L6563S output voltage monitoring and disables functions used for PFC protection purposes. If the voltage on pin #7 exceeds 2.5 V, the IC stops switching ...
ppt_ch16
... discharge current. The stored charge in the dielectric provides the potential difference. When the positive and negative charges are neutralized, the capacitor is discharged and the voltage across it is zero. Fig. 16-2 (d) Discharging the capacitor. Copyright © The McGraw-Hill Companies, Inc. Pe ...
... discharge current. The stored charge in the dielectric provides the potential difference. When the positive and negative charges are neutralized, the capacitor is discharged and the voltage across it is zero. Fig. 16-2 (d) Discharging the capacitor. Copyright © The McGraw-Hill Companies, Inc. Pe ...
Powerpoint
... resistance of 1.0 Ω. It is attached to a battery, as shown, that steadily decreases in voltage from 12 V to 0 V in 0.5 s, then remains at 0 V for t > 0.5 s. The inner coil of wire is 1 cm long, 1 cm in diameter, has 10 turns of wire, and has a total resistance of 0.01 Ω. It is connected, as shown, t ...
... resistance of 1.0 Ω. It is attached to a battery, as shown, that steadily decreases in voltage from 12 V to 0 V in 0.5 s, then remains at 0 V for t > 0.5 s. The inner coil of wire is 1 cm long, 1 cm in diameter, has 10 turns of wire, and has a total resistance of 0.01 Ω. It is connected, as shown, t ...
bq76925 Analog Front End for 3 to 6 Series Lithium
... The bq76925 device integrates cell balancing FETs that are fully controlled by the Host. The balancing current is set by external resistors up to a maximum value of 50 mA. These same FETs may be utilized in conjunction with cell voltage measurements to detect an open wire on a cell sense-line. The H ...
... The bq76925 device integrates cell balancing FETs that are fully controlled by the Host. The balancing current is set by external resistors up to a maximum value of 50 mA. These same FETs may be utilized in conjunction with cell voltage measurements to detect an open wire on a cell sense-line. The H ...
Keysight Technologies U1240 Series Handheld Digital Multimeters
... –– Accuracy is given as ± (% of reading + counts of least significant digit) at 23 °C ± 5 °C, with relative humidity less than 80 % R.H. –– Accuracy is specified for 1-year after calibration, at operating temperature of room temperature. Multiply 1.5 times of the accuracy for 2-year after calibratio ...
... –– Accuracy is given as ± (% of reading + counts of least significant digit) at 23 °C ± 5 °C, with relative humidity less than 80 % R.H. –– Accuracy is specified for 1-year after calibration, at operating temperature of room temperature. Multiply 1.5 times of the accuracy for 2-year after calibratio ...
High-Voltage Circuit Breakers
... The foundation of quality for Siemens high-voltage circuit breakers begins right in the development of a new product. Switching performance, high voltage stability and performance under normal mechanical loads (wind and short circuits) as well as seismic conditions are simulated and optimized in the ...
... The foundation of quality for Siemens high-voltage circuit breakers begins right in the development of a new product. Switching performance, high voltage stability and performance under normal mechanical loads (wind and short circuits) as well as seismic conditions are simulated and optimized in the ...
The pictures below illustrate the values shown by the charger... In the first row the ...
... The built-in fan must be able to cool the electronics well. The fan speed depends on ambient temperature and charging current. Output currents are very high. Select the correct wire/cable size, use ferrules for wire ends, keep contact points clean and properly connect the output terminals. The fuse ...
... The built-in fan must be able to cool the electronics well. The fan speed depends on ambient temperature and charging current. Output currents are very high. Select the correct wire/cable size, use ferrules for wire ends, keep contact points clean and properly connect the output terminals. The fuse ...
Benchmarking of Grid Fault Modes in Single-Phase Grid-Connected Photovoltaic Systems Zhixiang Zou
... Adaptive filter based phase detector of an enhanced PLL. Fig. 11. ...
... Adaptive filter based phase detector of an enhanced PLL. Fig. 11. ...
Evaluates: MAX8537 MAX8537 Evaluation Kit General Description Features
... The resistor-divider formed by R15 and R16 sets VOUT1. The MAX8537 EV kit is shipped with the divider set so VOUT1 equals 2.5V. Change the voltage by selecting R16, the resistor from FB1 to GND, between 5kΩ and 15kΩ. Then calculate R15 by: R15 = R16 x [(VOUT1 / 0.8) -1] The resistor-divider formed b ...
... The resistor-divider formed by R15 and R16 sets VOUT1. The MAX8537 EV kit is shipped with the divider set so VOUT1 equals 2.5V. Change the voltage by selecting R16, the resistor from FB1 to GND, between 5kΩ and 15kΩ. Then calculate R15 by: R15 = R16 x [(VOUT1 / 0.8) -1] The resistor-divider formed b ...
A Review of Polarization Index and IEEE Standard 43-2000
... DC voltage testing is normally done by applying the DC source directly across the insulation system between the windings and stator frame of the machine. Because the resistivity values of the dirt, oil, and water that often contaminates the end-winding areas of rotating machinery are quite low, dire ...
... DC voltage testing is normally done by applying the DC source directly across the insulation system between the windings and stator frame of the machine. Because the resistivity values of the dirt, oil, and water that often contaminates the end-winding areas of rotating machinery are quite low, dire ...
PDF
... unbalanced three-phase signal. The design of this PLL is based on a complete description of the source voltage involving both positive and negative sequences in stationary coordinates and considering the angular frequency as an uncertain parameter. Keywords- Grid synchronization, phase locked loop, ...
... unbalanced three-phase signal. The design of this PLL is based on a complete description of the source voltage involving both positive and negative sequences in stationary coordinates and considering the angular frequency as an uncertain parameter. Keywords- Grid synchronization, phase locked loop, ...
5300 Series TECSource User's Manual
... Press the MENU button to enter the menu, and using the knob, turn to the right until the I Lim setting is displayed. Press the knob to edit the setting, and adjust the limit as appropriate to your Peltier. Press the knob again to save the value. Make the same adjustments to the high and low temperat ...
... Press the MENU button to enter the menu, and using the knob, turn to the right until the I Lim setting is displayed. Press the knob to edit the setting, and adjust the limit as appropriate to your Peltier. Press the knob again to save the value. Make the same adjustments to the high and low temperat ...
A Comparative Study of Switching Loss in IGBT and
... control circuit design and is capable of fast switching speed. Additionally, IGBT has current conduction capability that makes it widely used in applications exceeding 300V [1]. However, this device does not have an integral reverse diode. Because of this, it needs to be connected to an appropriate ...
... control circuit design and is capable of fast switching speed. Additionally, IGBT has current conduction capability that makes it widely used in applications exceeding 300V [1]. However, this device does not have an integral reverse diode. Because of this, it needs to be connected to an appropriate ...
RE1C002UN
... are presented only as guidance for Products use. Therefore, in case you use such information, you are solely responsible for it and you must exercise your own independent verification and judgment in the use of such information contained in this document. ROHM shall not be in any way responsible or ...
... are presented only as guidance for Products use. Therefore, in case you use such information, you are solely responsible for it and you must exercise your own independent verification and judgment in the use of such information contained in this document. ROHM shall not be in any way responsible or ...
Shaft Grounding and Sliding Electrical Contacts
... create a high potential for static and induced voltages. As the power capacities of these machines increased over the years the tendency for accumulation of electric charges on the shaft became ever more prevalent. These, like any electric charges, always seek the lowest resistance path to ground. A ...
... create a high potential for static and induced voltages. As the power capacities of these machines increased over the years the tendency for accumulation of electric charges on the shaft became ever more prevalent. These, like any electric charges, always seek the lowest resistance path to ground. A ...
Identifying Causes for Certain Types of Electrically Initiated
... the deterioration and decomposition mechanisms that occur when PVC wire insulation is heated and exposed to arcing. Gas analysis measurements have revealed that flammable gases can evolve from pyrolized PVC insulation. There are three examples presented showing how series arcing can initiate fires. ...
... the deterioration and decomposition mechanisms that occur when PVC wire insulation is heated and exposed to arcing. Gas analysis measurements have revealed that flammable gases can evolve from pyrolized PVC insulation. There are three examples presented showing how series arcing can initiate fires. ...