c-14-deee-5th-sem
... Explain the charging current in lines and power loss due to it State `Ferranti’ effect Compute the rise in voltage at the receiving end State the factors affecting corona Explain corona in transmission lines State the disruptive critical voltage and give its formula State the empirical formula for p ...
... Explain the charging current in lines and power loss due to it State `Ferranti’ effect Compute the rise in voltage at the receiving end State the factors affecting corona Explain corona in transmission lines State the disruptive critical voltage and give its formula State the empirical formula for p ...
An effective passive islanding detection method for PV
... and rate of change of frequency (ROCOF) Yu et al., 2010; Llaria et al., 2011; De Mango et al., 2006; Freitas et al., 2005; Redfern et al., 1993. Active techniques inject a small disturbance at the PV inverter output to detect islanding. The main advantage of these techniques is their relatively smal ...
... and rate of change of frequency (ROCOF) Yu et al., 2010; Llaria et al., 2011; De Mango et al., 2006; Freitas et al., 2005; Redfern et al., 1993. Active techniques inject a small disturbance at the PV inverter output to detect islanding. The main advantage of these techniques is their relatively smal ...
Class D Audio Design Tips
... The PWM Waveform Edges With rise times in the order of 2ns, the frequency of the edge currents will be in excess of 200MHz. The decoupling of the supplies at the IC is critical, in order to keep current loops as small as possible and avoid spread of interference. The switching transients can be qui ...
... The PWM Waveform Edges With rise times in the order of 2ns, the frequency of the edge currents will be in excess of 200MHz. The decoupling of the supplies at the IC is critical, in order to keep current loops as small as possible and avoid spread of interference. The switching transients can be qui ...
the objectives of site grounding
... Modulation Technique for sine-coded PWM using the SineTriangle intersection method - digital implementation ...
... Modulation Technique for sine-coded PWM using the SineTriangle intersection method - digital implementation ...
Solar PV Standard Plan – Simplified Microinverter and ACM
... AC inverter output rating of 10 kW, with a maximum of 3 branch circuits, one PV module per inverter and with PV module ISC maximum of 10-A DC, installed on a roof of a one- or two-family dwelling or accessory structure. The photovoltaic system must interconnect to a single-phase AC service panel of ...
... AC inverter output rating of 10 kW, with a maximum of 3 branch circuits, one PV module per inverter and with PV module ISC maximum of 10-A DC, installed on a roof of a one- or two-family dwelling or accessory structure. The photovoltaic system must interconnect to a single-phase AC service panel of ...
AN INTELLIGENT HOT-SWAP CONTROLLER FOR ATCA FRU
... due to double faults (as in the case of two fuse “blow-out fault”). ...
... due to double faults (as in the case of two fuse “blow-out fault”). ...
LM4250 数据资料 dataSheet 下载
... Resale of TI products or services with statements different from or beyond the parameters stated by TI for that product or service voids all express and any implied warranties for the associated TI product or service and is an unfair and deceptive business practice. TI is not responsible or liable f ...
... Resale of TI products or services with statements different from or beyond the parameters stated by TI for that product or service voids all express and any implied warranties for the associated TI product or service and is an unfair and deceptive business practice. TI is not responsible or liable f ...
POWERLOGIC® Circuit Monitor — Series 2000
... The circuit monitor can continuously monitor for sags and swells on any metered voltage or current. This feature can help detect and analyze troublesome voltage disturbances that can cause costly equipment down time. The circuit monitor detects sags and swells based on user-defined setpoints and del ...
... The circuit monitor can continuously monitor for sags and swells on any metered voltage or current. This feature can help detect and analyze troublesome voltage disturbances that can cause costly equipment down time. The circuit monitor detects sags and swells based on user-defined setpoints and del ...
BDTIC CCM-PFC www.BDTIC.com/infineon ICE1PCS01
... correction converters. It comes in both DIP and DSO packages and is suitable for wide range line input applications from 85 to 265 VAC. The IC supports converters in boost topology and it operates in continuous conduction mode (CCM) with average current control. The IC operates with a cascaded contr ...
... correction converters. It comes in both DIP and DSO packages and is suitable for wide range line input applications from 85 to 265 VAC. The IC supports converters in boost topology and it operates in continuous conduction mode (CCM) with average current control. The IC operates with a cascaded contr ...
Electronics and Electrical instruments
... They allow regulating the test voltage controlled from PC ensuring such a perfect linearity for a better optimisation of tests. Each model includes two three-phase variacs with adjustable separately outputs single-phase and three-phase voltages in d.c. and a.c. and driven by motors through RS232 of ...
... They allow regulating the test voltage controlled from PC ensuring such a perfect linearity for a better optimisation of tests. Each model includes two three-phase variacs with adjustable separately outputs single-phase and three-phase voltages in d.c. and a.c. and driven by motors through RS232 of ...
Chapter 14 DC Electric Circuits Homework # 114 EC)
... 03. What is the resistance of a heater if it produces a current of 15.0 A when plugged into a household outlet that is wired for 120 V? 04. A 1.50-V flashlight battery (D cell) is placed in a flashlight whose bulb has a resistance of 1.35 W. How many electrons leave the battery if the flashlight is ...
... 03. What is the resistance of a heater if it produces a current of 15.0 A when plugged into a household outlet that is wired for 120 V? 04. A 1.50-V flashlight battery (D cell) is placed in a flashlight whose bulb has a resistance of 1.35 W. How many electrons leave the battery if the flashlight is ...
1.2 MHz Step-up Converter for Display Bias
... As ILOAD is reduced, the energy required in the inductor, L1, also reduces, resulting in the inductor current dropping to zero for low load current levels. This is known as Discontinuous mode operation and results in some low-frequency ripple. The average load current will, however, remain regulated ...
... As ILOAD is reduced, the energy required in the inductor, L1, also reduces, resulting in the inductor current dropping to zero for low load current levels. This is known as Discontinuous mode operation and results in some low-frequency ripple. The average load current will, however, remain regulated ...
Panasonic B Series AC Servo Motor Driver Manual
... ♦ When not in use for a long time, turn OFF the power supply. ♦ When alarm is output, remove the cause and then restart. If restarted without removing the cause, the motor may unexpectedly run or burn out. ♦ Capacity of power rectifying circuit capacitor decreases due to secular change. To prevent s ...
... ♦ When not in use for a long time, turn OFF the power supply. ♦ When alarm is output, remove the cause and then restart. If restarted without removing the cause, the motor may unexpectedly run or burn out. ♦ Capacity of power rectifying circuit capacitor decreases due to secular change. To prevent s ...
International Electrical Engineering Journal (IEEJ) Vol. 6 (2015) No.4, pp. 1884-1890
... operation is a crucial issue because of the presence of DG’s having diverse power capabilities and generation characteristics, which will adversely affect the stability and security of the grid if appropriate control measures were not implemented [1]-[15]. The load sharing control strategy of the ea ...
... operation is a crucial issue because of the presence of DG’s having diverse power capabilities and generation characteristics, which will adversely affect the stability and security of the grid if appropriate control measures were not implemented [1]-[15]. The load sharing control strategy of the ea ...
- Phi Education
... designed to operate bipolar stepper motor in full, half, quarter and one-eighth step-modes. Lynx has motor supply voltage of 8V to 35V and maximum current rating of ±2.5 A. The A3977 includes a fixed off-time current regulator that has the ability to operate in slow, fast, or mixed decay modes. This ...
... designed to operate bipolar stepper motor in full, half, quarter and one-eighth step-modes. Lynx has motor supply voltage of 8V to 35V and maximum current rating of ±2.5 A. The A3977 includes a fixed off-time current regulator that has the ability to operate in slow, fast, or mixed decay modes. This ...
Selecting a Power System Architecture
... implemented with low power (mostly less than 50W) DC/DC converters. Two or more low power converters are often used. These power converters are sometimes referred to as Point of Use Power Supplies (PUPS). This approach lends itself to the usage of standard DC/DC converter modules rather than custom ...
... implemented with low power (mostly less than 50W) DC/DC converters. Two or more low power converters are often used. These power converters are sometimes referred to as Point of Use Power Supplies (PUPS). This approach lends itself to the usage of standard DC/DC converter modules rather than custom ...
SLO-SYN Bipolar Model SD200 Step Motor Drive
... added EMI shielding, the printed circuit board area below where the module is mounted could be used as an effective sixth side shield. The Module has an internal capacitor connected across the motor/module supply pins (13 and 18) to assure circuit stability. This capacitor cannot handle high values ...
... added EMI shielding, the printed circuit board area below where the module is mounted could be used as an effective sixth side shield. The Module has an internal capacitor connected across the motor/module supply pins (13 and 18) to assure circuit stability. This capacitor cannot handle high values ...
FAN6754A Highly Integrated Green- Mode PWM Controller Brownout and V
... FAN6754A inserts a synchronized, positive-going, ramp at every switching cycle. ...
... FAN6754A inserts a synchronized, positive-going, ramp at every switching cycle. ...
Reactive Power Compensation Technologies: State-of-the
... the current transient component is zero. Despite the attractive theoretical simplicity of the switched capacitor scheme, its popularity has been hindered by a number of practical disadvantages: the Var compensation is not continuous, each capacitor bank requires a separate thyristor switch and there ...
... the current transient component is zero. Despite the attractive theoretical simplicity of the switched capacitor scheme, its popularity has been hindered by a number of practical disadvantages: the Var compensation is not continuous, each capacitor bank requires a separate thyristor switch and there ...
TECHNICIAN POWER ELECTRONICS SYSTEMS Government of India
... Identify different sizes, shapes of cores used in low capacity transformers. Measure the primary and secondary voltage of different transformers Construct a low voltage night lamp Identify and test the variac AC & DC measurements Identify the meter for measuring AC & DC parameters Use the multi mete ...
... Identify different sizes, shapes of cores used in low capacity transformers. Measure the primary and secondary voltage of different transformers Construct a low voltage night lamp Identify and test the variac AC & DC measurements Identify the meter for measuring AC & DC parameters Use the multi mete ...
Three-phase electric power
Three-phase electric power is a common method of alternating-current electric power generation, transmission, and distribution. It is a type of polyphase system and is the most common method used by electrical grids worldwide to transfer power. It is also used to power large motors and other heavy loads. A three-phase system is usually more economical than an equivalent single-phase or two-phase system at the same line to ground voltage because it uses less conductor material to transmit electrical power.The three-phase system was independently invented by Galileo Ferraris, Mikhail Dolivo-Dobrovolsky, Jonas Wenström and Nikola Tesla in the late 1880s.