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NA Y.3 Connections to mains
NA Y.3 Connections to mains

... Systems rated not less than 48 V have one point directly earthed, the exposed conductive parts of the installation being connected to that point by protective earth conductors. Systems rated less than 48 V may have one point directly earthed. Two types of systems are recognized according to the arra ...
ZJ013646652
ZJ013646652

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B0509

HMMC-3122 DC-12 GHz Packaged High Efficiency Divide-by
HMMC-3122 DC-12 GHz Packaged High Efficiency Divide-by

... 2.  Prescaler may exhibit this output signal under bias in the absence of an RF input signal. This condition may be eliminated by use of the Input dc offset technique described on page 4. 3.  Fundamental of output square wave’s Fourier series. 4.  Square wave amplitude calculated from Pout. ...
Single-Supply Operation of Isolation Amplifiers
Single-Supply Operation of Isolation Amplifiers

... power-supply rails. In fact, in the application shown in Figures 1 and 2, the input range of the circuit extends approximately 2V below ground (the negative power supply rail). This is because the resistors internal to the INA105 divide the input level in half as seen by the op amp. The technique is ...
EN / ACS800 Single Drive Common DC
EN / ACS800 Single Drive Common DC

... Connecting the DC buses of frequency converters together results in energy savings and in some cases simplifies the connection to the main supply. With common DC the braking energy of one converter can be used for the other converters and motors. Unequal current distribution and different charging m ...
Physics 17 Spring 2003 The Stefan
Physics 17 Spring 2003 The Stefan

... on the Keithley and set the range to 100-300 microvolts full scale. Zero the meter. Run the standard bulb at the highest voltage given on the calibration chart taped to the table beside the nullmeter. Allow about five minutes for the meter reading to stabilize. Record. Repeat for the other two volta ...
Basics on electric motors
Basics on electric motors

Utilization of Repetitive Surge Oscillograph (RSO) in the Detection of
Utilization of Repetitive Surge Oscillograph (RSO) in the Detection of

... chosen by the various RSO manufactures in such a manner that the equipment is sensitive to shorted-turns for all large rotors. ...
A Lead-Acid Battery Model for Hybrid System Modelling
A Lead-Acid Battery Model for Hybrid System Modelling

... The model accounts for certain elements of battery behaviour and ignores others. Note that the model accounts battery self-discharge and for the effect of temperature (over a range of approximately –5ºC to 35ºC) on battery capacity, gassing, self-discharge, and resistance. Note, however, that the mo ...
Aalborg Universitet
Aalborg Universitet

BU97950FUV
BU97950FUV

... When SCL 8th=’L’ after transfer of 8-bit data (Slave Address, Command, Display Data), output ’L’ and open SDA line. When SCL 9th=’L’, stop output function. (As Output format is NMOS-Open-Drain, can’t output ‘H’ level.) If there is no need for Acknowledge function, please input ‘L’ level from SCL 8th ...
Mitigation of Transient Recovery Voltage Issues Associated with
Mitigation of Transient Recovery Voltage Issues Associated with

... each bus. SF6 circuit breakers are used to energize and deenergize the capacitor banks. Each 42 Mvar capacitor bank is equipped with 0.4 ohm/phase reactors to limit the inrush current during a back-to-back energizing and the outrush current during a close-in fault. In addition, the capacitor configu ...
Power Issues in Embedded Systems
Power Issues in Embedded Systems

... Phenomenal increase in processor speed 3GHz Pentium 4 by the end of the year ...
Practical Guide to Arc Flash Hazards
Practical Guide to Arc Flash Hazards

... • The National Electric Code (NEC) was designed to protect individuals from shock hazards under normal conditions. • It is not designed to protect employees under abnormal conditions. • We need additional policies to protect us under abnormal conditions. ...
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D2.5

Magnetics - American Zettler, Inc.
Magnetics - American Zettler, Inc.

... Plug n’ Play power solution Cost Effective Resale about $2 per watt Universal input voltage 90-264VAC 50/60Hz Output Range 3.3V-24VDC Compact Safety Agency Approved ...
AAT4626 数据资料DataSheet下载
AAT4626 数据资料DataSheet下载

... Output Capacitor In order to insure stability while the device current limit is active, a small capacitance of approximately 1µF should be used on each output. When either output of the AAT4626 is activated using the EN(A/B) function, there are no momentary current transients, as in the case when a ...
Control of VSC-HVDC for wind power
Control of VSC-HVDC for wind power

... The phase reactors as shown in Fig. 2.2 are used for controlling both the active and the reactive power flow by regulating currents through them. High pass filter branches prevent the harmonics due to switching of the IGBT's from being emitted into the ac system. The dc capacitors provide a low indu ...
scanCONTROL 2700
scanCONTROL 2700

... If the sensor is connected to a network adapter/switch that is capable of POE and if you also use the power supply of the multifunction port, these two power supplies have to be galvanically isolated. >> Damage of the sensor and/or the Ethernet card! -- A fixed IP address can be assigned. Use the ...
Thermal Simulation
Thermal Simulation

The New PL and New PL-P Series of manual and bus
The New PL and New PL-P Series of manual and bus

BRT11 - Vishay
BRT11 - Vishay

... Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other disclosure relating to any product. Vi ...
Supplemental Correction Sheet for Solar Photovoltaic
Supplemental Correction Sheet for Solar Photovoltaic

... module frames shall be identified for the purpose of grounding PV modules. (LAEC 690.43(D)) (e) Identify the listed devices for bonding the metallic frames of PV modules to bond the exposed metallic frames of PV modules to the metallic frames of adjacent PV modules. (LAEC 690.43(E)) (f) Equipment gr ...
AN-376 Logic-System Design Techniques Reduce Switching-CMOS Power AN-
AN-376 Logic-System Design Techniques Reduce Switching-CMOS Power AN-

... • putting the logic to sleep (by removing the clock); • capitalizing on power-down situations. Total system power dissipation is the sum of two components: static (or quiescent) and dynamic power. LS TTL systems consume such a great amount of quiescent power that the dynamic component pales into ins ...
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Voltage optimisation

Voltage optimisation is a term given to the systematic controlled reduction in the voltages received by an energy consumer to reduce energy use, power demand and reactive power demand. While some voltage 'optimisation' devices have a fixed voltage adjustment, others electronically regulate the voltage automatically.Voltage optimisation systems are typically installed in series with the mains electrical supply to a building, allowing all its electrical equipment to benefit from an optimised supply.
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