X-RAD 225 - Precision X-Ray
... for high and low dose radiation studies normally conducted in research laboratories. The cabinet requires no additional shielding and features an adjustable specimen shelf and filter station to provide ultra stable and uniform dose delivery. The TouchRAD Control is multi-user, password protected tou ...
... for high and low dose radiation studies normally conducted in research laboratories. The cabinet requires no additional shielding and features an adjustable specimen shelf and filter station to provide ultra stable and uniform dose delivery. The TouchRAD Control is multi-user, password protected tou ...
Factors To Consider In Selecting Electric Motors
... • TYPE FH: indicates motor is a fractionalhorsepower motor • SF 1.35: indicates motor will tolerate a 35% overload for extended periods • SFA 3.5: number of amps the motor will draw when operating at the SF load of 1.35 times the rated Hp • HSG OPEN: indicates type of motor enclosure • CONNECTIONS: ...
... • TYPE FH: indicates motor is a fractionalhorsepower motor • SF 1.35: indicates motor will tolerate a 35% overload for extended periods • SFA 3.5: number of amps the motor will draw when operating at the SF load of 1.35 times the rated Hp • HSG OPEN: indicates type of motor enclosure • CONNECTIONS: ...
Line Diagrams And The Per Unit System
... is a simplified notation for representing a three-phase power system. Electrical elements such as circuit breaker, transformer, capacitors, bus bars, and conductors are shown by standized schematic symbols. Instead of representing each of three phases with a separate line or terminal, only one condu ...
... is a simplified notation for representing a three-phase power system. Electrical elements such as circuit breaker, transformer, capacitors, bus bars, and conductors are shown by standized schematic symbols. Instead of representing each of three phases with a separate line or terminal, only one condu ...
EMT 113 Chapter 2
... • In long shunt compound dc motor, the series field is connected in series with armature and the combination is in parallel with the shunt field. •In the short shunt field compound dc motor, the shunt field is in parallel with armature and the combination is connected in series with the series field ...
... • In long shunt compound dc motor, the series field is connected in series with armature and the combination is in parallel with the shunt field. •In the short shunt field compound dc motor, the shunt field is in parallel with armature and the combination is connected in series with the series field ...
Phase-Locked Loop Applications
... c. Phase detector d. VCO 8. The output of a PLL used as a frequency demodulator is taken from the? a. Frequency divider b. Loop filter c. Phase detector d. VCO 9. The main difference between a standard PLL and a clock multiplier PLL is that the latter contains a? a. Frequency divider b. Mixer c. Mul ...
... c. Phase detector d. VCO 8. The output of a PLL used as a frequency demodulator is taken from the? a. Frequency divider b. Loop filter c. Phase detector d. VCO 9. The main difference between a standard PLL and a clock multiplier PLL is that the latter contains a? a. Frequency divider b. Mixer c. Mul ...
A Double Grounded Transformerless Photovoltaic Array String
... capacitors. The motivations are to reduce cost, eliminate leakage ground currents, and improve reliability. The use of Silicon Carbide (SiC) transistors is the key enabling technology for this particular circuit to attain reasonable efficiency. Traditionally, grid connected PV inverters required a t ...
... capacitors. The motivations are to reduce cost, eliminate leakage ground currents, and improve reliability. The use of Silicon Carbide (SiC) transistors is the key enabling technology for this particular circuit to attain reasonable efficiency. Traditionally, grid connected PV inverters required a t ...
A 24 Vin, 40 Watt, Low Cost, DC-to-DC Converter
... Over-current limiting is provided by sensing the peak current in the MOSFET Q1 via R6. Once the 800 mV threshold level on U1’s pin 4 is exceeded the circuit will go a “hiccup” mode until the over-current condition is removed. A Vcc OVP circuit is implemented via Z1, while D1 (and fuse F1) provide re ...
... Over-current limiting is provided by sensing the peak current in the MOSFET Q1 via R6. Once the 800 mV threshold level on U1’s pin 4 is exceeded the circuit will go a “hiccup” mode until the over-current condition is removed. A Vcc OVP circuit is implemented via Z1, while D1 (and fuse F1) provide re ...
Specification of an Electric Power System
... Lithium cells are connected in series to obtain the desired voltage, as per NiCads. However, they are also sometimes connected in parallel to boost capacity or current capability. This is becoming less common as larger lithium cells become available, and the cells improve in current delivery capabil ...
... Lithium cells are connected in series to obtain the desired voltage, as per NiCads. However, they are also sometimes connected in parallel to boost capacity or current capability. This is becoming less common as larger lithium cells become available, and the cells improve in current delivery capabil ...
L551A_M5500EX (Page 1)
... flash to indicate an under or over voltage condition. Power to the connected equipment is automatically turned off if either of these conditions is detected. When voltage returns to a safe level, power to the equipment is automatically reconnected. ...
... flash to indicate an under or over voltage condition. Power to the connected equipment is automatically turned off if either of these conditions is detected. When voltage returns to a safe level, power to the equipment is automatically reconnected. ...
The Effect of Power Factor On An Electrical System
... P.F. as shown in vector diagram (see diagram two) is the ratio of true power (shown as watts (W) amps x volts) to the apparent power (shown as VA amps x volts) flowing to the load in an alternating current (AC) system. Watts and VA are more commonly quoted in thousands as kW and kVA. kW and kVA in a ...
... P.F. as shown in vector diagram (see diagram two) is the ratio of true power (shown as watts (W) amps x volts) to the apparent power (shown as VA amps x volts) flowing to the load in an alternating current (AC) system. Watts and VA are more commonly quoted in thousands as kW and kVA. kW and kVA in a ...
QST5
... No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject to change without notice. The specifications for the product described in this document are for reference only. Up ...
... No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject to change without notice. The specifications for the product described in this document are for reference only. Up ...
AND8019/D Offline Converter Provides 5.0 Volt, 1.0 Amp
... converters offers a low cost, high efficiency power source for low power, electronic equipment. It serves the same function as small, line frequency transformers, but with the added benefits of line and load regulation, transient suppression, reduction in weight, and operation across the universal i ...
... converters offers a low cost, high efficiency power source for low power, electronic equipment. It serves the same function as small, line frequency transformers, but with the added benefits of line and load regulation, transient suppression, reduction in weight, and operation across the universal i ...
Study of PR Controller to the Voltage Source Inverter
... pass). In order to improve reference current tracking ability the filter inductor is made smaller too. Normally PI Controller is used in grid connected inverter systems in order to control the output power using Inverter output current, however it's performance is not up to the mark, since poor dis ...
... pass). In order to improve reference current tracking ability the filter inductor is made smaller too. Normally PI Controller is used in grid connected inverter systems in order to control the output power using Inverter output current, however it's performance is not up to the mark, since poor dis ...
Specifications
... Injection molding for maximum consistency of encapsulation, yielding exceptionally low leakage currents. Vacuum drawing prior to injection prevents air pockets inside. A far superior process to compression or transfer molding, or pouring. ...
... Injection molding for maximum consistency of encapsulation, yielding exceptionally low leakage currents. Vacuum drawing prior to injection prevents air pockets inside. A far superior process to compression or transfer molding, or pouring. ...
US6T5
... No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject to change without notice. The specifications for the product described in this document are for reference only. Up ...
... No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject to change without notice. The specifications for the product described in this document are for reference only. Up ...
Variable-frequency drive
A variable-frequency drive (VFD) (also termed adjustable-frequency drive, variable-speed drive, AC drive, micro drive or inverter drive) is a type of adjustable-speed drive used in electro-mechanical drive systems to control AC motor speed and torque by varying motor input frequency and voltage.VFDs are used in applications ranging from small appliances to the largest of mine mill drives and compressors. However, around 25% of the world's electrical energy is consumed by electric motors in industrial applications, which are especially conducive for energy savings using VFDs in centrifugal load service, and VFDs' global market penetration for all applications is still relatively small. That lack of penetration highlights significant energy efficiency improvement opportunities for retrofitted and new VFD installations.Over the last four decades, power electronics technology has reduced VFD cost and size and has improved performance through advances in semiconductor switching devices, drive topologies, simulation and control techniques, and control hardware and software.VFDs are available in a number of different low- and medium-voltage AC-AC and DC-AC topologies.