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coolyaar
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Join Date: Jul 2011
Posts: 286
Good Answers: 1

Power Droop vs. Speed Droop

06/18/2012 2:46 PM

Our 800kw, 1500 Rpm genset have two potentiometers on control penel labelled as SPEED DROOP and POWER DROOP. what is the diffrence between them because as for as i know speed droop basically controls speed/frequency before synchronization and power/fuel after paralleling with mains. in other words are'nt cotrolling speed ,fuel,active power and frequency mean same thing. regards
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lyn
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Join Date: Oct 2008
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#1

Re: Power droop vs speed droop

06/18/2012 2:49 PM

Are we playiing 20 questions?

Call the manufacturer, he may tutor you.
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nobodysomebody47
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Join Date: Nov 2011
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#2

Re: Power droop vs speed droop

06/18/2012 3:10 PM

Read this if it helps you

Speed Droop and Power Generation
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wareagle
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#3

Re: Power droop vs speed droop

06/18/2012 3:10 PM

As usual google first.

http://www.google.com/search?sourceid=navclient&aq=hts&oq=&ie=UTF-8&rlz=1T4GZAZ_enUS396US396&q=SPEED+DROOP+and+POWER+DROOP
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8
lyn
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#4

Re: Power droop vs speed droop

06/18/2012 6:00 PM

LynDoor™Institutional Press is honored to present to you, free of charge today only, a first press limited edition of the informative manual shown above.

It is electrifying reading that will charge you up in soooo many ways.

You won't want to put it down until all of the power contained in these pages is conducted into your brain.
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TonyS
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#5
In reply to #4

Re: Power droop vs speed droop

06/18/2012 7:37 PM

Absolutely F***ing brilliant! GA

PS you owe me a new keyboard, mines full of port wine now!

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lyn
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#6
In reply to #5

Re: Power droop vs speed droop

06/18/2012 7:48 PM
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Epke
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#7
In reply to #4

Re: Power droop vs speed droop

06/18/2012 10:07 PM

By yourself or is it a site where you can make this GA!

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lyn
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Posts: 42355
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#8
In reply to #7

Re: Power droop vs speed droop

06/19/2012 12:30 AM

I'm sorry.

Intellectual property rights preclude me from providing additional information.
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sauravbabu
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Engineering Fields - Electrical Engineering - New Member

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Posts: 247
#9
In reply to #4

Re: Power droop vs speed droop

06/19/2012 6:22 AM

how can I get this? download link is not working. Its a privilege though.

Actually, earlier I was not confronted with this particular problem.

Thanks,

sks
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PWSlack
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United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

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Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
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#10
In reply to #9

Re: Power droop vs speed droop

06/19/2012 7:10 AM

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electricalexpert65
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Join Date: Oct 2009
Posts: 2061
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#13
In reply to #4

Re: Power droop vs speed droop

07/03/2012 9:58 AM

GA to you, Lyn! There can't be better sarcasm! I hope the poor chap wouldn't be looking at his doorsteps for the courier person to deliver him your Dummys edition.
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SHOCKISCAN
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#11

Re: Power Droop vs. Speed Droop

06/19/2012 2:35 PM

Coolyaar;

MACHINE (GENERATOR) SPEED = FREQUENCY

MACHINE (GENERATOR) POWER OUTPUT = VOLTAGE LEVEL X MACHINE (SYSTEM) LOAD CURRENT

GENERATOR OUTPUT POWER => Is not equal to nor totally dependent on machine speed or frequency.

The machine can most likely ouput maximum voltage and/or power via increasing generator excitation without attaining or maintaining proper frequency.

SPEED DROOP => Generator output frequency control setpoint and allowed deviation.

POWER DROOP => Generator output power level control setpoint and allowed deviation. (Voltage level adjustment only as current is a derived function of system load and machine design limit.)
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XNuke
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Location: Moncks Corner, South Carolina, USA
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#12

Re: Power Droop vs. Speed Droop

06/21/2012 7:39 AM

Speed Droop means the generator slows down as load increases. This is the opposite of Isochronous. These are normally governor functions. Voltage regulators have settings for Constant Power Factor, Constant Voltage, and Constant MVar. The opposite of any of these "constant" settings would be considered "Droop" You can be set for Speed Droop and change the voltage regulator settings to suit your needs. Normally only very large (1000 MW) base load machines have their governors set for Isochronous operation and constant voltage is a very common setting in the US.

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Users who posted comments:

electricalexpert65 (1); Epke (1); lyn (4); nobodysomebody47 (1); PWSlack (1); sauravbabu (1); SHOCKISCAN (1); TonyS (1); wareagle (1); XNuke (1)

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