Previous in Forum: Earth Fault   Next in Forum: What Happens When the Power Factor Improves?
Close

Comments Format:






Change Mode
Close

Subscribe to Discussion:

CR4 allows you to "subscribe" to a discussion
so that you can be notified of new comments to
the discussion via email.

Close

Rating Vote:







Add Vote
2 comments
Rate Comments: Nested
wingman1985
Power-User

Join Date: Jul 2009
Location: China
Posts: 146

Setpoint Hover

12/07/2009 11:32 PM

Setpoint "Hover" function opens the anti-surge valve on a sudden large movement towards surge. The setpoint hover forces the setpoint of the surge PID to track the operating margin minus a hover margin.

what does "hover" mean here?

__________________
 I am not a home work cheater. I am a translator seeking professional help
Register to Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.

"Almost" Good Answers:

Check out these comments that don't yet have enough votes to be "official" good answers and, if you agree with them, vote them!
dkwarner
Guru

Join Date: May 2006
Location: Placerville, CA (38° 45N, 120° 47'W)
Posts: 6215
Good Answers: 248
#1

Re: Setpoint Hover

12/09/2009 2:09 AM

To 'hover' is to fly over one spot on the ground, without touching the ground. Helicopters commonly hover, as do the small hawks known as kites. Since it is virtually impossible in real life to remain truly motionless, I presume that the hover margin is the amount the value is allowed to vary before triggering the valve opening. Similar to hysteresis.

__________________
 Teaching is a great experience, but there is no better teacher than experience.
Register to Reply Score 1 for Good Answer
No more "Almost" Good Answers.
HUX
Power-User

Join Date: Jan 2007
Location: UK S.Northants
Posts: 485
Good Answers: 19
#2

Re: Setpoint Hover

12/15/2009 7:29 AM

might it be short for height over? your question lacks a frame of reference
Register to Reply
Register to Reply
Have a Different Question?
2 comments

"Almost" Good Answers:

Check out these comments that don't yet have enough votes to be "official" good answers and, if you agree with them, vote them!

Previous in Forum: Earth Fault   Next in Forum: What Happens When the Power Factor Improves?

Advertisement

Got Something to Say?
Ask a Question
Start a Discussion

Search this Forum
Electrical Engineering:
Go

CR4 Sections
Aerospace
BioMech & BioMed
Chemical & Material Science
Civil Engineering
Communications & Electronics
Education and Engineering Careers
Electrical Engineering
General Discussion
Instrumentation
Manufacturing
Mechanical Engineering
New Technologies & Research
Software & Programming
Sustainable Engineering
Transportation

Site Directories
Forum Directory
Blog Directory
User Group Directory
RSS Feeds

CR4 Rules of Conduct
CR4 FAQ
Site Glossary

Who's Online (106 right now)
Show Members
Advertisement