safe stall time cold?
safe stall time cold?
(OP)
what does the term safe stall time cold mean? - wrt electric motors?
When was the last time you drove down the highway without seeing a commercial truck hauling goods?
Download nowINTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS Come Join Us!Are you an
Engineering professional? Join Eng-Tips Forums!
*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail. Posting GuidelinesJobs |
|
RE: safe stall time cold?
RE: safe stall time cold?
RE: safe stall time cold?
I think you're configuring a relay for a motor to enhance better discrimination.
In addition to the preceeding post above; to attain good coordination, you must define this first; SAFE STALL TIME and STARTING TIME.
Motor Characteristic;
Safe stall time less than starting time,
Safe Stall time greater than starting time.
RE: safe stall time cold?
Locked Rotor time Cold- Motor at ambient temp.
Locked Rotor time Hot- Motor at it's operating temp. usually .833 times cold LR time. 10 sec LR time cold = 8.33 sec. LR time hot.