Soft Starters
Basic Functionality, Terminology and Applications
What is a Soft Starter?
A Soft Starter is a device that starts motors with reduced power supplied at start-up.
Reducing the
power reduces potentially damaging electrical and mechanical shocks...
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Soft Starters
Basic Functionality, Terminology and Applications
What is a Soft Starter?
A Soft Starter is a device that starts motors with reduced power supplied at start-up.
Reducing the
power reduces potentially damaging electrical and mechanical shocks on the system.
As the name implies, starters "start" motors.
They can also stop, reverse, accelerate and protect them.
Whether it s a small fan, or piece of mining equipment, electric motors are often the driving force
behind them.
Electric motors consume 60% to 70% of all energy used in the United States.
Soft Starters are a combination of a controller and overload protection.
CONTROLLERS - turns electric current to the motor on and off.
A contactor is a controller that is
controlled by an electromagnet.
OVERLOAD PROTECTION - protects a motor from drawing too much current and "burning out" from
overheating.
The overload relay is the motor overload protection used in soft starters.
It limits the time
the overload current is
Less
