Motor Relay P.u. |
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Motor Relay P.u. |
Apr 24 2007, 06:42 AM
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#1
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Junior Member ![]() ![]() Group: Full Member Posts: 6 Joined: 19-August 06 Member No.: 1,811 |
Hi all,
What is meant by the motor relay was tested at 1.0 p.u. of FLA? and what is greater 5.5 p.u. or 1.0 p.u? Thanks |
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Apr 24 2007, 11:10 PM
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#2
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![]() Posting Freak ![]() ![]() ![]() ![]() ![]() ![]() Group: Moderator Posts: 636 Joined: 22-February 03 From: USA, California Member No.: 285 |
I've never been absolutely sure, but to me "p.u." means "per unit", a shorthand way of saying "multiples. So in your context, it means that the relay is tested at a multiplier of 1.0 x the FLA. It follows then that 5.5 p.u. would be 550% of FLA.
-------------------- "He's not dead, he's just pinin' for the fjords!"
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Apr 25 2007, 02:05 AM
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#3
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Posting Freak ![]() ![]() ![]() ![]() ![]() ![]() Group: Moderator Posts: 2,031 Joined: 24-April 02 From: Christchurch, New Zealand Member No.: 1 |
Yes,
That would be my understanding also. Best regards, -------------------- Mark Empson administrator
Skype Contact = markempson | phone +64 274 363 067 LMPForum | LMP Tech Warehouse | L M Photonics Ltd | Empson family | Advanced Motor Control Ltd | LMP Software | Mark Empson Website |
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