Eng-Tips is the largest engineering community on the Internet
Intelligent Work Forums for Engineering Professionals
-
Congratulations waross on being selected by the Tek-Tips community for having the most helpful posts in the forums last week. Way to Go!
Search results for query: *
- Users: aldighe
- Order by date
-
Wye Delta starter breaker trip on Startup
Hello Marke and GGOSS Marke : The health of the motor seems OK as insulation windings resistance taken with Megger shows a good Ohmic value. Continuity of stator coils also Ok as well as phase balance. Regarding power supply being stiffened I dont think so anyone has done that to my knowledge...- aldighe
- Post #17
- Forum: Electric motors & generators engineering
-
Wye Delta starter breaker trip on Startup
shortstub : From aldighe Thanks for yr reply. Answers to your queries 1) The installation is a 20 yr old one and the problem is new. Before motor would start up on the DOL starter drawing normal starting current. Now of late is tripping off on overload as starting current is abnormally high...- aldighe
- Post #11
- Forum: Electric motors & generators engineering
-
Wye Delta starter breaker trip on Startup
GGOSS, Marke and NNPackerfan I am facing a similar problem with motor tripping on starting on the ship where I work. Only difference here is is on a DOL - direct on line starter. Motor is of 440V / 175 kW driving a centrifugal pump. Main bus bar is 6 kV and stepped down to 440V. During satring...- aldighe
- Post #8
- Forum: Electric motors & generators engineering
