Title :
Testing and applying instantaneous trip circuit breakers in combination motor starters
Author :
Padden, Lorraine K. ; Gregory, George D.
Author_Institution :
Padden Eng., Katy, TX, USA
Abstract :
Instantaneous trip molded-case circuit breakers have been widely used in petrochemical facilities for low-voltage motor protection. If not properly applied, false tripping on motor starting and contact welding of contactors may occur. Moreover, changes in the National Electrical Code have impacted equipment selection and protection. This paper discusses the testing, operation, and application of instantaneous trip molded-case circuit breakers used in combination motor starters
Keywords :
chemical industry; circuit breakers; electric motors; petroleum industry; starting; switchgear testing; National Electrical Code; combination motor starters; contact welding; equipment protection; equipment selection; false tripping; instantaneous trip circuit breakers testing; low-voltage motor protection; molded-case circuit breakers; motor starting; petrochemical facilities; Circuit breakers; Circuit testing; Contactors; Induction motors; Low voltage; National electric code; Petrochemicals; Protection; Protective relaying; Welding;
Conference_Titel :
Petroleum and Chemical Industry conference, 1998. Industry Applications Society 45th Annual
Conference_Location :
Indianapolis, IN
Print_ISBN :
0-7803-4897-4
DOI :
10.1109/PCICON.1998.727902
