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What is the purpose of over load used with motors?

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Question added by Hasan Ahmad Ali Mohammad , Production Engineer , Gulf Grilles Company
Date Posted: 2016/06/21
Duran Govender
by Duran Govender , Technician & HSSE Rep , GAC

An over laod protection device is a thermal device used to protect and disconnect the main circuit and the motor and in some cases disconnect the control circuit,if for any reasons the motor exceeds the set trip current 

Baker  Abood
by Baker Abood , Electrical Engineer , Al marshad Group Holding Company

over load disconnect motor from supply in case high current more than rated current due to larger torque of motor .

Morteza Shamayeli
by Morteza Shamayeli , Technical Manager , Novin Azmayan

Overload uses for protection against over current which damaged motors

Padam Sharma
by Padam Sharma , Sales Manager , SIEMENS Ltd

to prevent motor from getting overloaded i.e. motor should not run beyond FLA full load ampere

MUHAMMAD IBRAHIM
by MUHAMMAD IBRAHIM , As Science teacher , Al-khair public and secondery school

protection from the over current  which wil burned the motor

Jovanni Miano
by Jovanni Miano , Electrical Technician , Abunayyan Trading Corporation (Maharah Human Resources)

To Protect Motors from Overloading, High Ampere that causes Burning.

Bokhari Ahmed
by Bokhari Ahmed , Maintenance Department Manager , Sudanese Hydro Power Generation Company .ltd

Protection of the motor windings from burning or it's insulator from being thermally stressed.

Thanooj AK
by Thanooj AK , PROJECT ENGINEER , ALICO KUWAIT

In the most general sense, the load is the thing that is connect to the output of an electrical circuit. The load can basically be anything. For example, it can be a resistor, or a capacitor or an inductor, or a transistor, or a motor, or an air conditioner etc.it also used to vary the output voltage,current,power

MOHAMMED TOUSEEF   ALI
by MOHAMMED TOUSEEF ALI , Data Center Consultant , Hewlett Packard Enterprise

overload relays are used to protect motors, if motors take high current then its capacity, either due to mechanical (Bearing or Pump etc) or electrical winding problem, the overload trips and protect motor from any kind of damage. 

Muhammad Shahzad Saleem
by Muhammad Shahzad Saleem , Trainee Engineer , Pakistan Ordinance Factories Wah cantt

Over load rellays are used for the protection of moter. These rellays sense the overload current and hence prevent from over heating of motor winding

Muhamma Omair Saleem Khan
by Muhamma Omair Saleem Khan , Assistant Manager , GlaxoSmithKline

Overload relays use for protection of motors

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