Liebert PPC Two Stage Distribution 150-800kVA Guide
... The frame shall be constructed of welded steel to provide a strong substructure. The enclosure shall be mounted on heavy-duty swivel casters for portability and ease of installation and shall be provided with permanent leveling jacks for final installation. The unit shall have easily removable input ...
... The frame shall be constructed of welded steel to provide a strong substructure. The enclosure shall be mounted on heavy-duty swivel casters for portability and ease of installation and shall be provided with permanent leveling jacks for final installation. The unit shall have easily removable input ...
Worksheet 1 - Matrix TSL
... • Find out as much as you can about low-energy light bulbs. Explain to your partner why it is a good idea to use these instead of ‘normal’ light bulbs (the ones that get very hot!) ...
... • Find out as much as you can about low-energy light bulbs. Explain to your partner why it is a good idea to use these instead of ‘normal’ light bulbs (the ones that get very hot!) ...
INF5490 RF MEMS
... • MEMS varactors have not developed as fast as MEMS switches – But: is the RF MEMS component closest to commercial applications – Relative mature technology – Already, many replacements using MEMS have been demonstrated, DC Æ 100 GHz ...
... • MEMS varactors have not developed as fast as MEMS switches – But: is the RF MEMS component closest to commercial applications – Relative mature technology – Already, many replacements using MEMS have been demonstrated, DC Æ 100 GHz ...
Course Notes
... In a series circuit there is _________ path for the ______________ to flow around. The current in a series circuit is the __________________ at all points in the circuit. The _________________________ is divided between the ______________ in the ratio of their _________________. (components, voltage ...
... In a series circuit there is _________ path for the ______________ to flow around. The current in a series circuit is the __________________ at all points in the circuit. The _________________________ is divided between the ______________ in the ratio of their _________________. (components, voltage ...
50 555 Circuits - Talking Electronics
... The 555 and 7555 are called TIMERS or Timer Chips. They contain about 28 transistors and the only extra components you need are called TIMING COMPONENTS. This is an external ...
... The 555 and 7555 are called TIMERS or Timer Chips. They contain about 28 transistors and the only extra components you need are called TIMING COMPONENTS. This is an external ...
62-0415 E-Mon Green Class Meter Manual
... ready to install the current sensors. The MAIN power board contains three header connectors located at the bottom right of the board. The connectors are labeled A, B, and C along with conductor color indication. This format must be followed in order for the meter to function correctly. The Green Cla ...
... ready to install the current sensors. The MAIN power board contains three header connectors located at the bottom right of the board. The connectors are labeled A, B, and C along with conductor color indication. This format must be followed in order for the meter to function correctly. The Green Cla ...
"Is My UPS Distribution System Coordinated?
... interruption, UPS system short-circuit transients. 6. To confirm successful transfer operation, UPS static switch timing and triggering parameters should be reviewed. ...
... interruption, UPS system short-circuit transients. 6. To confirm successful transfer operation, UPS static switch timing and triggering parameters should be reviewed. ...
a CMOS Complete DDS AD9832
... Frequency Select Input. FSELECT controls which frequency register, FREQ0 or FREQ1, is used in the phase accumulator. The frequency register to be used can be selected using the pin FSELECT or the bit FSELECT. FSELECT is sampled on the rising MCLK edge. FSELECT needs to be in steady state when an MCL ...
... Frequency Select Input. FSELECT controls which frequency register, FREQ0 or FREQ1, is used in the phase accumulator. The frequency register to be used can be selected using the pin FSELECT or the bit FSELECT. FSELECT is sampled on the rising MCLK edge. FSELECT needs to be in steady state when an MCL ...
Slide 1
... Alternating Current and Direct Current DC stands for "Direct Current," meaning voltage or current that maintains constant polarity and direction over time. ...
... Alternating Current and Direct Current DC stands for "Direct Current," meaning voltage or current that maintains constant polarity and direction over time. ...
4 NFV Hardware Ecosystem
... The present document may be made available in electronic versions and/or in print. The content of any electronic and/or print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any existing or perceived difference in contents between su ...
... The present document may be made available in electronic versions and/or in print. The content of any electronic and/or print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any existing or perceived difference in contents between su ...
replacing batteries
... The switch should be connected to a normally open switch contact. External voltage is not required; the switch is driven by 12V internal supply. In closed condition, 2mA of current are drawn The EPO switch is internally powered by the UPS for use with non-powered switch circuit breakers. The EPO cir ...
... The switch should be connected to a normally open switch contact. External voltage is not required; the switch is driven by 12V internal supply. In closed condition, 2mA of current are drawn The EPO switch is internally powered by the UPS for use with non-powered switch circuit breakers. The EPO cir ...
CfE Higher Physics Unit 3: Electricity
... In Great Britain, the voltage of the supply is described as 230 V, 50 Hz. In other countries the values may be different, but virtually all countries use a.c. for their public electricity supply. There are two main reasons why a.c. is used. 1. Firstly that is the form of electricity generated by com ...
... In Great Britain, the voltage of the supply is described as 230 V, 50 Hz. In other countries the values may be different, but virtually all countries use a.c. for their public electricity supply. There are two main reasons why a.c. is used. 1. Firstly that is the form of electricity generated by com ...
XCL205/XCL206/XCL207Series
... *6: The CE/MODE pin of the XCL207 series works also as an external switching pin of PWM control and PWM/PFM control. When the IC is in the operation, control is switched to the automatic PWM/PFM switching mode when the CE/MODE pin voltage is equal to or greater than VIN minus 0.3V, and to the PWM mo ...
... *6: The CE/MODE pin of the XCL207 series works also as an external switching pin of PWM control and PWM/PFM control. When the IC is in the operation, control is switched to the automatic PWM/PFM switching mode when the CE/MODE pin voltage is equal to or greater than VIN minus 0.3V, and to the PWM mo ...
256-Position I C -Compatible Digital Potentiometer
... INL and DNL are measured at VW with the RDAC configured as a potentiometer divider similar to a voltage output D/A converter. VA = VDD and VB = 0 V. DNL specification limits of ±1 LSB maximum are guaranteed monotonic operating conditions. ...
... INL and DNL are measured at VW with the RDAC configured as a potentiometer divider similar to a voltage output D/A converter. VA = VDD and VB = 0 V. DNL specification limits of ±1 LSB maximum are guaranteed monotonic operating conditions. ...
HEWITT PYROMETERS Installation Instructions
... PYROMETER SYSTEM TESTER Installation Instructions ...
... PYROMETER SYSTEM TESTER Installation Instructions ...
Voltage Regulator-Down (VRD) 11.0 Processor Power Delivery
... processors’ Vcc power delivery requirements for desktop computer systems using the LGA775 socket. This includes design recommendations for DC to DC regulators, which convert the input supply voltage to a processor consumable Vcc voltage along with specific feature set implementation such as thermal ...
... processors’ Vcc power delivery requirements for desktop computer systems using the LGA775 socket. This includes design recommendations for DC to DC regulators, which convert the input supply voltage to a processor consumable Vcc voltage along with specific feature set implementation such as thermal ...
capacitance test bridge
... for wide-range capacitance and dissipation-factor measurements at 60 and 120 cps. (At 120 cps, an external generator is required; the Type 1214-D is recommended.) Measurements can be made at other audio frequencies up to about 1000 cps with reduced sensitivity. For such measurements an external gene ...
... for wide-range capacitance and dissipation-factor measurements at 60 and 120 cps. (At 120 cps, an external generator is required; the Type 1214-D is recommended.) Measurements can be made at other audio frequencies up to about 1000 cps with reduced sensitivity. For such measurements an external gene ...
Short-circuit current rating (SCCR) of industrial control panels
... A device that, when interrupting currents in its current limiting range, reduces the current flowing in the faulted circuit to a magnitude substantially less than that obtainable in the same circuit if the device were replaced with a solid conductor having comparable impedance. Feeder Circuit The co ...
... A device that, when interrupting currents in its current limiting range, reduces the current flowing in the faulted circuit to a magnitude substantially less than that obtainable in the same circuit if the device were replaced with a solid conductor having comparable impedance. Feeder Circuit The co ...
How to Construct a Cable for Garmin GPS receivers
... adapter, for example). In either case, don’t forget to add a fuse inline with the external power source. The following circuit will provide a steady output of 6VDC to a GPS receiver, which should work for most Garmin models (though as always, check with your manual to be sure of the maximum voltage ...
... adapter, for example). In either case, don’t forget to add a fuse inline with the external power source. The following circuit will provide a steady output of 6VDC to a GPS receiver, which should work for most Garmin models (though as always, check with your manual to be sure of the maximum voltage ...
Switched-mode power supply
A switched-mode power supply (switching-mode power supply, switch-mode power supply, SMPS, or switcher) is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently. Like other power supplies, an SMPS transfers power from a source, like mains power, to a load, such as a personal computer, while converting voltage and current characteristics. Unlike a linear power supply, the pass transistor of a switching-mode supply continually switches between low-dissipation, full-on and full-off states, and spends very little time in the high dissipation transitions, which minimizes wasted energy. Ideally, a switched-mode power supply dissipates no power. Voltage regulation is achieved by varying the ratio of on-to-off time. In contrast, a linear power supply regulates the output voltage by continually dissipating power in the pass transistor. This higher power conversion efficiency is an important advantage of a switched-mode power supply. Switched-mode power supplies may also be substantially smaller and lighter than a linear supply due to the smaller transformer size and weight.Switching regulators are used as replacements for linear regulators when higher efficiency, smaller size or lighter weight are required. They are, however, more complicated; their switching currents can cause electrical noise problems if not carefully suppressed, and simple designs may have a poor power factor.