Programmable Controller Troubleshooting Guide (GE Fanuc Automation)

  DOWNLOAD :   http://www.qualitrol.com/documents/Series9070/Manuals/gfz0086Series90-70TroubleshootingFlowChart.pdf   ...

Terms AC1 and AC3

AC-1 - This category applies to all AC loads where the power factor is more than 0.95. These are primarily non-inductive or slightly inductive loads, such as heating. Breaking the arc remains easy with minimal arcing and contact wear.   AC-3 - This category applies to squirrel cage motors with breaking during normal running of the motor. On closing, the contactor makes the inrush...

Advantages of LED light bulbs

How far the light bulb has come. For years incandescent bulbs were the only game in town. But in more recent times consumers have seen new choices come along, such as compact fluorescent light bulbs (CFLs) and light-emitting diodes (LEDs). Sometimes people prefer a certain type of light bulb for the impact they hope it will have on the environment, and other times people choose bulbs based...

Industrial Control Wiring Guide

DOWNLOAD : http://www.modon.gov.sa/en/mediacenter/InformationCenter/Books/Industrial%20Control%20Wiring%20Guide.pdf   ...

International Power Plugs & Sockets

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KW to Ampere calculation

DC kilowatts to amps calculation The current I in amps (A) is equal to 1000 times the power P in kilowatts (kW), divided by the voltage V in volts (V): I(A) = 1000 × P(kW) / V(V)  AC single phase kilowatts to amps calculation The phase current I in amps (A) is equal to 1000 times the power P in kilowatts (kW), divided by the power factor PF times the RMS voltage V in volts (V): I(A) = 1000...

Understanding Type 2 Coordinated Protection in Motor Branch Circuits

The new IEC (International Electrotechnical Commission) standard, publication 947 “Low Voltage Switchgear and Control, Part 4-1: Contactors and Motor Starters,” has been recognized by UL (Underwriters Laboratories) and is becoming widely accepted by designers and users of motor control in the U.S. This standard addresses coordination between the branch circuit protective device...