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PowerLab 6 User Guide
PowerLab 6 User Guide

... chemistries, providing charging strategies for most common RC charging needs. Also holds up to 50 Library Presets. When using the free Charge Control Software, the number of custom presets is virtually unlimited and will grow over time to meet industry needs. Replace and customize presets to match y ...
L-Series Integrated Speed Control
L-Series Integrated Speed Control

... The engine, turbine, or other type of prime mover should be equipped with an overspeed shutdown device to protect against runaway or damage to the prime mover with possible personal injury, loss of life, or property damage. The overspeed shutdown device must be totally independent of the prime mover ...
Platform Cable USB II Data Sheet (DS593)
Platform Cable USB II Data Sheet (DS593)

... The Platform Cable USB II firmware resides in an USB microcontroller and a FPGA/PROM. The microcontroller is RAMbased and firmware is downloaded each time the cable is connected and detected by the host operating system. Additional firmware can also be downloaded to the microcontroller once a design ...
Geomagnetically Induced Current
Geomagnetically Induced Current

Paralleling Dissimilar Generators
Paralleling Dissimilar Generators

SERVICE MANUAL MICROWAVE OVENS
SERVICE MANUAL MICROWAVE OVENS

... (E) There is not any other visible damage with the oven. Servicing and repair work must be carried out only by trained Service Engineers. All the parts marked ”*” on schematic diagrams are used at voltages more than 250V. Removal of the outer wrap gives access to potentials above 250V. If the Magnet ...
Powerstroke Diesel IDM mod Doc
Powerstroke Diesel IDM mod Doc

... modification, although it has given some very noticeable gains on most trucks. Stock trucks show the most gains, highly modified ones the least. Any gains are also very dependant on what condition the original IDM is in: If the original IDM is already modified, and the pulse gap is shorter than .36- ...
Recommended Practices for Charge Controllers
Recommended Practices for Charge Controllers

Safety Relays
Safety Relays

... a relay sticks or if a transistor or two electrical conductors short-circuit. A safety relay will fulfill these requirements. A safety relay has, for example, inputs that are checked for short-circuits and dual redundant circuits that are checked at each operation. This can be compared to the dual b ...
Guidelines for the Evaluation of Underground Storage
Guidelines for the Evaluation of Underground Storage

Advanced Sequence Elements for Line Current Differential
Advanced Sequence Elements for Line Current Differential

... theoretical infinite sensitivity to resistive ground faults. However, we could say this only for perfectly transposed networks and perfect CTs. In reality, a minimum sequence (negative or zero) differential pickup current limits this sensitivity to take into account such factors as natural unbalance ...
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1. part 1

FREQUENCY DIVIDERS DESIGN FOR MULTI
FREQUENCY DIVIDERS DESIGN FOR MULTI

... with a digital logic resetting the counter after a number of input clock cycles equal to the division ratio have been counted. The drawback of this kind of solution is the limited maximum frequency of operation due to the digital logic with which the counter is implemented. Usually, such a frequency ...
Safety Relays
Safety Relays

... a relay sticks or if a transistor or two electrical conductors short-circuit. A safety relay will fulfill these requirements. A safety relay has, for example, inputs that are checked for short-circuits and dual redundant circuits that are checked at each operation. This can be compared to the dual b ...
Powerware BladeUPS for Data Centers, 12kW single system to
Powerware BladeUPS for Data Centers, 12kW single system to

When fully charged the 2.0 mF capacitor used as a backup
When fully charged the 2.0 mF capacitor used as a backup

... When fully charged the 2.0 mF capacitor used as a backup for a memory unit has a potential difference of 5.0 V across it. The capacitor is required to supply a constant current of 1.0 μA and can be used until the potential difference across it falls by 10%. For how long can the capacitor be used bef ...
Aalborg Universitet Göksu, Ömer
Aalborg Universitet Göksu, Ömer

... sequence currents, is given and compared with the conventional method in the sense of grid support performance. Additionally, effect of the coupling between positive, negative and zero sequences during asymmetrical faults, is investigated, which was not considered in the wind power studies before. I ...
Intel® Atom™ Processor Z5xxΔ Series
Intel® Atom™ Processor Z5xxΔ Series

... The processor supports low power states at the thread level and the core/package level. Thread states (TCx) loosely correspond to ACPI processor power states (Cx). A thread may independently enter the TC1/AutoHALT, TC1/MWAIT, TC2, TC4, or TC6 low power states, but this does not always cause a power ...
74AVCH20T245 1. General description 20-bit dual supply translating transceiver with configurable
74AVCH20T245 1. General description 20-bit dual supply translating transceiver with configurable

... HIGH on a 1DIR allows transmission from 1An to 1Bn and a LOW on 1DIR allows transmission from 1Bn to 1An. A HIGH on nOE causes the outputs to assume a HIGH impedance OFF-state. The device is fully specified for partial power-down applications using IOFF. The IOFF circuitry disables the output, preve ...
word - Rackcdn.com
word - Rackcdn.com

... erroneously goes high. The larger the number of inputs, the more charge-sharing that occurs and the more likely the circuit will improperly operate. An objective of the invention, therefore, is to provide a dynamic logic circuit that is capable of providing substantially constant power and speed reg ...
Spatial Modulation in the Underwater Acoustic  Communication  Channel
Spatial Modulation in the Underwater Acoustic Communication Channel

Guide and Requirements for Service at 69000 to 287000
Guide and Requirements for Service at 69000 to 287000

... SECTION 3.0 - CUSTOMER ELECTRICAL REQUIREMENTS SUBSECTION 3.1 - EQUIPMENT REQUIREMENTS It will be necessary for customers to coordinate their station insulation with the incoming transmission line insulation. At 230 kV and 287 kV it is BC Hydro's practice to install overhead ground wires on transmis ...
NI PXI-5114 Calibration Procedure
NI PXI-5114 Calibration Procedure

... for device performance to improve the measurement accuracy. Performing an adjustment updates the calibration date, effectively resetting the calibration interval. The device is guaranteed to meet or exceed its published specifications for the duration of the calibration interval. Verification is the ...
74AVCH4T245 1. General description 4-bit dual supply translating transceiver with configurable
74AVCH4T245 1. General description 4-bit dual supply translating transceiver with configurable

... VCC(B). A HIGH on nDIR allows transmission from nAn to nBn and a LOW on nDIR allows transmission from nBn to nAn. The output enable input (nOE) can be used to disable the outputs so the buses are effectively isolated. The device is fully specified for partial power-down applications using IOFF. The ...
Impact of low voltage - connected low carbon technologies on power
Impact of low voltage - connected low carbon technologies on power

... significant harmonic current are present on a feeder, the combined affect could lead to harmonic voltage distortion which could exceed the planning standard G5/4-1. Low-order harmonics are of particular concern because of their tendency to be synchronised between sources. G5/4-1 allows a maximum THD ...
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Opto-isolator



In electronics, an opto-isolator, also called an optocoupler, photocoupler, or optical isolator, is a component that transfers electrical signals between two isolated circuits by using light. Opto-isolators prevent high voltages from affecting the system receiving the signal. Commercially available opto-isolators withstand input-to-output voltages up to 10 kV and voltage transients with speeds up to 10 kV/μs.A common type of opto-isolator consists of an LED and a phototransistor in the same opaque package. Other types of source-sensor combinations include LED-photodiode, LED-LASCR, and lamp-photoresistor pairs. Usually opto-isolators transfer digital (on-off) signals, but some techniques allow them to be used with analog signals.
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