Full Description

Many types of alternating-current (AC) motors are available; direct-current (DC) motors are also used, but to a more limited degree. National Electrical Manufacturers Association (NEMA) Standard MG 1 provides technical information on most types of AC and DC motors.

MOTORS
Alternating-Current Power Supply
Codes and Standards
Motor Efficiency
General-Purpose Motors
Permanent-Magnet AC Motors
Hermetic Motors
Integral Thermal Protection
Motor Protection and Control

AIR VOLUME CONTROL
Variable-Frequency Drives
Power Distribution System Effects
AHRI Standard 1210
Other Considerations

ISBN: 978-1-947192-52-2 (for I-P versions of chapters)
ISSN: 1078-6066 (for I-P versions of chapters)

Citation: 2020 ASHRAE Handbook -- HVAC Systems and Equipment