Search results

The most disconcerting point here is the vibration of the SRV shaft, to which the LVDT cores are attached. By vibration, it's presumed you mean up and down, not side to side. It should be possible to balance a coin with smooth edges on its edge on the bar to which the LVDT cores are attached...

Ah. A member of the youTube generation.

>how is a RTD connected to a PLC< Having struggled with RTDs many years ago, I can understand how confusing this can seem to be. An RTD is a very simple device, the resistance of which changes in proportion to the temperature in the area where the RTD is mounted. RTDs are usually remotely...

Did your original post indicate you wanted to obtain a soft copy of the sequencing printout, or to be able to print a copy of the sequencing? That's one of the reasons I didn't respond sooner--your original post was unclear as to exactly what you wanted. Have you tried clicking on File...

Hi, The TCCA card is an analog input/output card in Loc. 2 of the <C> core. The <C> core 4-20 mA analog inputs and -outputs are terminated on the CTBA terminal board (Loc. 6) of the <C> core (that's the terminal board with the StageLink coaxial terminals on it). This alarm usually...

I, too, have pondered the term 'cable schedule' and wondered how the word 'schedule' came to be used to describe a list of cables used in a plant or building and where each cable goes between. Some cable schedules also include conductor (core) termination details. Cable schedules are...

And therein lies the problem. :-* Your experience is with a limited set of machines which employ Speedtronic Mark VI controls. You could qualify your statement by saying you don't have experience with a certain machine if you don't have experience with that machine. And with your...

309Eguy, >There is a L86HD hydraulic trouble signals that starts the 88HQ pump, if installed, but doesnt trip the turbine.< L86HD <b>is not</b> related to Hydraulic system pressure. L86HD <b>is</b> related to Trip Oil system pressure. And it usually trips the turbine.

We need some help in understanding the help you need. What is your role in the pre-application process? What are your responsibilities with regard to this list? The plant designer should be able to provide the "answers" to the "questions" in the list as they are all related to the...

When did the problem start? Has this configuration--running a single transmitter through a "switch"--ever worked properly? I'm not familiar with a "switch" for three-wire transmitters. Can you provide a manufacturer's name and model/part number? How many wires are connected to the switch from...

You're most welcome. By the way, there have been many types of L.O. mist eliminators over three decades or so. One of the first was an electrostatic precipitator, but they were not very efficient. Most of the more recent types have been "cyclone" separator-types of devices (causing the...

An <b>electric</b> motor is capable of producing more power than the nameplate rating. The nameplate rating is the optimum power output that results in the longest life of the motor (windings; bearings; frame; etc.). It is up to the designer of an <b>electric</b> motor-operated device to...

The answer is a qualified 'yes.' I'm hearing some new Frame 9E's need the Aux. Hyd. Pump to help break the shaft away from zero speed. If the unit at your site is one of these machines, the answer would then be,"No." The qualified 'yes' would be that the Main Hyd, Pump output pressure &...

If you define -1-2 in H2O as sub-atmospheric.... Oil flows back to the tank because of gravity, presuming the interconnecting piping was installed correctly. As for "removing" hydrogen which can be entrained in the lube oil because it is exposed to the hydrogen because it's used as the...

I wasn't quite sure how to respond to this; still not sure, actually. About the easiest way to get to the application code ("sequencing") is to use the 'Finder', which is usually the binocular icon in the Toolbar at the top of the .m6b file. When you open Finder, you will be presented with a...

The L.O. Tank must be "vented" somehow, and if that's just a simple pipe open to atmosphere then there would be a constant plume of oil vapors emanating from the open end of the pipe. And, those vapors usually condense on nearby equipment, causing a very unsightly mess. In some parts of the...

A written procedure? For something to do with adjustment/calibration of a device providing indication to a Speedtronic turbine control system? Surely you jest! And, difficult customers? Again, surely you jest! If I recall correctly, setting thrust probes involves "bumping" the rotor...

Dear anonymous, A positive VAr reading indicates reactive current is being "produced" by the generator because the exciter regulator is supplying more energy to the generator rotor than is required to make the generator terminal voltage equal to the voltage of the grid the generator is...

IGV Temp Control is primarily a means for maximizing exhaust temperature at part load (i.e., loads below Base Load, which can only occur when the IGVs are fully open). If the unit is combined cycle without a bypass stack then chances are it should be operated with IGV Temp Control enabled...

ProcessValue, Frame 6FA machines are relatively new machines. A few shipped with Mark V Speedtronic control systems, but most have shipped with Mark VI or Mark VIe Speedtronic control systems. Further, most 6FAs don't have Accessory Gear Boxes, and so have dual (redundant) Aux. L.O.- and...