Electric Motor Control Basics - Book - Page 45
Industrial Control Basics: Part 3, Starters
Summary
A starter is an electrical device which controls the power for starting a motor. These
electrical devices are also used for the purpose of controlling the motor, short circuit
and overload protection, and disconnecting and breaking and are made of two major
components: a contactor and overload relay. While there are many types of starters,
the two most basic starters are manual and magnetic. Thermal current, continuous
current, motor voltage, and power are just a few factors of the starter’s rating, as well
as its size and type of load. NEMA starters are sized based on horsepower and primarily
used in North America. IEC starters are used world wide and sized by their maximum
operating current.
Industrial Control
Basics:
Part 1, Contactors
Industrial Control
Basics: Part 2,
Overload Relays
Industrial Control
Basics: Part 3,
Starters
The Benefits of Type E/F
Motor Protection
Circuit Breakers
Basic Pump Control:
Three Phase DOL Starter
Control of an Electric Pump
Applying Motor Control
in a Wastewater
Application
NEMA vs IEC Motor
Controls
Understanding
IP Ratings
45
