Electric Motor Control Basics - Book - Page 33
Industrial Control Basics: Part 3, Starters
The control circuit can derive the power from either of the following three ways:
• Common Control: This type of control is when the power source of the control
circuit is the same as the motor.
• Separate Control: This is the most popular type of control. As the name
suggests, the control circuit derives power from a separate source in this
arrangement. Generally, the power derived is lower in voltage as compared to
the motor’s power source.
• Transformer Control: As the name suggests, the control circuit derives power
from a control circuit transformer. Generally, the power derived is lower in
voltage as compared to the motor’s power source.
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
33
