Successful Motor Protection Formulae

Written by Thomas Yoon

As we have discussed before, all overload relays have one major limitation - because they operate on line current, they do not directly senserepparttar motor temperatures.

However, with proper heater selection and careful attention to repparttar 137001 factors that affect heater performance,repparttar 137002 overload relay can work extremely well to protectrepparttar 137003 motors.

Some of these factors that need close attention are:

Motor full load current Motor temperature rise rating Service factor Ambient temperature atrepparttar 137004 motor and atrepparttar 137005 protector Motor locked rotor current ratio Starting time Duty cycle Locked rotor endurance time.

If attention is not given to these factors,repparttar 137006 overload relay will perform poorly. The other factor to be considered is maintenance. Below are some maintenance routines:

Cleaning - The overload relays should be cleaned periodically. Dirt or dust created byrepparttar 137007 operating conditions inrepparttar 137008 plant tends to settle aroundrepparttar 137009 moving parts inrepparttar 137010 device and prevent it from operating properly.

Tightening connections - Because most overload relays make use of current flowing through heater elements to sense overloaded conditions, it is important thatrepparttar 137011 electrical terminals are not loose. Loose electrical connections can create extra heat and cause false tripping ofrepparttar 137012 relays.

Will Magic Vines Make You HappY?

Written by David D. Deprice

DESCRIPTION Magic Vines is a puzzle game like no other. Get ready to travelrepparttar jungles and plains ofrepparttar 136839 world. Explore each location by solving a series of increasingly difficult puzzle boards.

Once you have completed one geography, you fly off to a new part ofrepparttar 136840 world and new challenging puzzles. Stunning graphics, great world music, and some ofrepparttar 136841 most addictive game play ever!

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