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5.0 Type Tests - IEEE Standards working groups
5.0 Type Tests - IEEE Standards working groups

... granted for IEEE Standards Committee participants to reproduce this document for purposes of IEEE standardization activities only. Prior to submitting this document to another standard development organization for standardization activities, permission must first be obtained from the Manager, Standa ...
dsport 2014 - Pulstar Spark Plugs
dsport 2014 - Pulstar Spark Plugs

... pressures may exceed 1,500 psi during combustion. At the same time, in-cylinder temperatures can soar above 2,000 degrees Celsius then instantly drop to outside temperatures when cool fresh intake air is drawn into the cylinder. If you have ever poured hot water in a chilled glass or ice cold water ...
Old Company Name in Catalogs and Other Documents
Old Company Name in Catalogs and Other Documents

... systems for life support (e.g. artificial life support devices or systems), surgical implantations, or healthcare intervention (e.g. excision, etc.), and any other applications or purposes that pose a direct threat to human life. You should use the Renesas Electronics products described in this docu ...
Instructions for Battery Tender Jr.
Instructions for Battery Tender Jr.

... unless the battery voltage matches the output voltage rating of the charger. For example, do not use a 12-volt charger with a 6-volt battery and vice-versa. CHARGER LOCATION: LOCATE the charger as far away from the battery as is allowed by the length of the output cable harness. NEVER set the charge ...
UCC2808A-1 数据资料 dataSheet 下载
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... COMP: COMP is the output of the error amplifier and the input of the PWM comparator. The error amplifier in the UCC3808A is a true low-output impedance, 2-MHz operational amplifier. As such, the COMP pin can both source and sink current. However, the error amplifier is internally current limited, so ...
What is a Riser Pole Arrester  ArresterFacts 015
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World smallest Time-of-Flight ranging and gesture detection sensor
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DR230 Hybrid Recorder
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... The universal input module permits measurement of DC voltages between 20 mV and 50 V, thermocouple inputs, RTD inputs, and contact signals in up to 500-ms intervals. Other cost-effective universal input modules are available that measure data from 20 or 30 channels in 2-second intervals, and lowcost ...
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... Some Electro Industries meters are optionally capable of monitoring digital inputs. Binary Input Status points report the state of these inputs. If the feature is not present on this device, the point is reported as being off-line. If the feature is present, the point is reported as being on line. ...
Sabertooth 2×32 - Dimension Engineering
Sabertooth 2×32 - Dimension Engineering

... custom operating modes, monitor the system, and update the firmware with new features. Auxiliary inputs and outputs Sabertooth 2x32 has two additional 8A power outputs, which can be set up to operate electromagnetic brakes on motors, act as a voltage clamp to protect power supplies, or power other m ...
LaPi Development Kit Datasheet
LaPi Development Kit Datasheet

... an interface of 3.3V. In addition, since the microcontrollers on this evaluation board can be run at either 3.3V or 5.0V, we have designed in a 2-channel voltage level shifter for the RST & TST pins that allows the nanoEASE to communicate with the micro. It is an automatic system, so there is nothin ...
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... unless the battery voltage matches the output voltage rating of the charger. For example, do not use a 12-volt charger with a 6-volt battery and vice-versa. CHARGER LOCATION: LOCATE the charger as far away from the battery as is allowed by the length of the output cable harness. NEVER set the charge ...
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... “hot” state, where the charger immediately stops charging the battery. When the battery is being discharged, this is a simple way of evaluating the OT functionality. When using alternate resistance and/or beta thermistors other than the two shown in the component list, then the circuit of Figure 3 m ...
MU-35CL Current Loop Panel Meter 3 1⁄2 Digit 0.3” LED
MU-35CL Current Loop Panel Meter 3 1⁄2 Digit 0.3” LED

... Texmate warrants that its products are free from defects in material and workmanship under normal use and service for a period of one year from date of shipment. Texmate’s obligations under this warranty are limited to replacement or repair, at its option, at its factory, of any of the products whic ...
VXR-7000 - Vertex Standard
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... from the AC source, a slight charging current will maintain battery charge. In the event of an AC power outage, the automatic power control circuit will automatically switch the repeater to the backup battery, and operation will not be interrupted. After prolonged operation from the battery, it shou ...
principles of lightning protection
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... This paper presents a review of lightning protection principles and set out a methodology to be followed to provide a total solution to both the direct and indirect effects of a lightning strike. The information in this volume may be used as a guide when planning lightning and surge protection for e ...
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Update on 2008 Code Changes

Turbine Supervisory Guide
Turbine Supervisory Guide

... hence the energising current, in proportion to the probetarget distance. Such changes are sensed in the driver where they are converted to a varying voltage signal. The whole probe, extension cable and driver system relies for its operation on being a tuned circuit and as such is dependent on the sy ...
ZTSCT Series - GE Grid Solutions
ZTSCT Series - GE Grid Solutions

... connection exceed 100 ms, the set of power contacts just closed shall be reopened and an alarm circuit shall be energized. If the main contacts fail to open, the control system shall energize a 24 VDC shunt trip circuit to the standby feeder breaker to disconnect this source and the alarm circuit sh ...
Li, J., T. Yuan, Q. Yang, W. Sima, C. Sun, and M. Zahn, Numerical and Experimental Investigation of Grounding Electrode Impulse-Current Dispersal Regularity Considering the Transient Ionization Phenomenon , IEEE Transactions on Power Delivery, Vol. 26, No. 4, pages 2647-2658, October, 2011
Li, J., T. Yuan, Q. Yang, W. Sima, C. Sun, and M. Zahn, Numerical and Experimental Investigation of Grounding Electrode Impulse-Current Dispersal Regularity Considering the Transient Ionization Phenomenon , IEEE Transactions on Power Delivery, Vol. 26, No. 4, pages 2647-2658, October, 2011

IOSR Journal of VLSI and Signal Processing (IOSR-JVSP)
IOSR Journal of VLSI and Signal Processing (IOSR-JVSP)

Operating Instructions
Operating Instructions

TND6041 - DC Motor Driver Fundamentals
TND6041 - DC Motor Driver Fundamentals

... INTRODUCTION Electric motors have been with us since the early 19th century, when Hungarian physicist Ányos Jedlik produced the first continuously rotating DC motor, made possible by his invention of the commutator. By the early 20th century electric motors revolutionized industry and agriculture an ...
< 1 ... 166 167 168 169 170 171 172 173 174 ... 1974 >

Mains electricity



Mains electricity is the general-purpose alternating-current (AC) electric power supply. In the US, electric power is referred to by several names including household power, household electricity, house current, powerline, domestic power, wall power, line power, AC power, city power, street power, and grid power.The two principal properties of the electric power supply, voltage and frequency, differ between regions. A voltage of (nominally) 230 V and a frequency of 50 Hz is used in Europe, most of Asia, most of South America and Australia. In North America, the most common combination is 120 V and a frequency of 60 Hz. Other voltages exist, and some countries may have, for example, 230 V but 60 Hz. This is a concern to travelers, since portable appliances designed for one voltage and frequency combination may not operate or may be destroyed by another.The use of different plugs and sockets in different regions provides some protection from accidental use of appliances with incompatible voltage and frequency requirements.
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