Solid state reduced voltage starters

Journal Article · Mon Nov 01 04:00:00 EST 1982 · Power Transm. Des.; (United States)

OSTI ID:5610864

Posma, B W

This article predicts that as the relatively low cost, reliability and flexibility of solid state starters become recognized, they will replace conventional devices for starting ac motors under reduced voltage conditions. It explains that reduced voltage starters are used to reduce motor starting current, and to limit starting torque which thereby reduces excessive shock to driven machinery. For squirrel cage motors, there are 2 types of reduced voltage starters: electromechanical (part-winding, autotransformer, primary resistor, wye-delta, and reactor) and solid state (using SCRs). Solid state reduced voltage starters (SRVSs) provide smooth, stepless acceleration of ac squirrel cage and wound rotor motors from standstill to full speed. A rugged, low cost SRVS teamed with a standard squirrel cage motor can perform the starter functions normally accomplished by fluid couplings, eddy current drives, wound rotor drives and even some dc motor drives.

• Research Organization: Saftronics Group, Youngstown, New York
• OSTI ID: 5610864
• Journal Information: Power Transm. Des.; (United States), Journal Name: Power Transm. Des.; (United States) Vol. 24:11; ISSN PWTDA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420800* -- Engineering-- Electronic Circuits & Devices-- (-1989)
AC SYSTEMS
ACCELERATION
COST
CURRENT LIMITERS
ELECTRIC MOTORS
ELECTRICAL EQUIPMENT
ENERGY SYSTEMS
EQUIPMENT
MOTORS
PHYSICS
POWER SYSTEMS
RESISTORS
SOLID STATE PHYSICS
START-UP
TORQUE
TRANSFORMERS
VOLTAGE REGULATORS