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A2A... thank you for your response! Q5) Regarding your comment about the change of temperature... although seemingly "rapid" does it also occur at the same rate as the deviation! 6) Is there a corresponding change in stator Amperes, PF or kVAr? Regards, Phil

Pandu... two similar topics located in the Control.Conm Archives may shed some light on the problem: http://www.control.com/thread/950636217 http://www.control.com/thread/1318343767 Regards, Phil Corso

A2A... Have you looked into the phenomenon, "Which Came First, The Chicken or The Egg?". Have you seen any corroboration between MW deviation, and local load change? Search Control.Com Archive for a thread involving a vibration problem that took weeks to solve. It is...

A2A... can you at least provide answers to the following questions: 1) the rate-of-change? 2) does it occur randomly? 3) does it appear to be sinusoidal? 4) does it occur during a specific time interval. That is, during a shift, a day, a week, weekends, etc! Regards, Phil

CSA... it is clear to me that not all posters have the acumen or experience you have. My intent was to illustrate an approach for solving "Chicken or the Egg" problems. That is, compare associated variables on the same time scale! For example, fuel-flow vs MW, etc. Regards, Phil

A2A... the following Control.Com thread might be helpful: http://control.com/thread1026226787 Regards, Phil Corso

Abu… providing each generator with a NGR is the positive corrective-action for the following reasons: o Any third-harmonic present caused by having unlike alternators, becomes miniscule. o Eliminates switching gear to isolate the individual NGR circuit and its complication to operation...

Eric... you are corrrrect!

William... I meant NEMA Locked-Rotor Code. Phil

William... I would be very interested in the motor's kVA/Hp ratio? Regards, Phil

HV... they are series-connected to provide consistent lighting patterns. Series lighting insures that the same current-magnitude, hence voltage-drop, is available at each fixture! Regards, Phil

William... see Eng-Tips, Thread # 238-307149, for a similar question on the MICOm P643! Regards, Phil Corso

Liam... do you have a Multi-Amp (or similar) Relay Tester on-site. Something that can deliver, say, 100-300 Amperes of current? Phil

Liam... unfortunately without knowing the noise “type” all you can do is trial and error. I strongly urge you to borrow, beg, or in some other(?) way procure a scope. Phil

Liam... can you provide information regarding the interfering signal, that is, when it occurs (during start, under load, etc), what is its appearance (transient, sinusoidal), and how long does it last (continuous, intermittent, random)? Another question, does the interference occur on one...

Liam... is this a first-time commissioning operation? Regards, Phil Corso

Powah... I certainly never claimed computers are major appliances. Would you like a copy? Regards, Phil Corso

Kaljaro... contact EMERSON Process Management Co. for their 'Whitepaper' entitled, "Compressor Anti-Surge Control Application!" Regards, Phil Corso

Vinu... contact Dynasty Technology for their paper, "Batteries, Life Expectancy vs Temperature"! Regards, Phil Corso

Rokan... for years three of the most usual reasons are: 1) Typically, the LV-winding typically carries the heavier current, so it size is much larger than the HV-winding current. And, because the number of turns is low, less is required if the coil is wound closest to the core, that is its...