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Thanks for the feedback! However, simply sensing the input current to the igniter transformer isn't going to ensure the output of the transformer is working, or that the igniter is actually firing. And, I don't know of any current-sensing relays that will sense current at the high igniter...

Zihni from Turkey, control.com has a 'Search' feature on the far right side of the Menu bar or every control.com page. Type your search word/term there (each word must be preceded by a + character) and press ENTER on your keyboard and you will be presented with a list of relevant threads...

Accurately analyzing vibration events requires a lot more data than you have provided, and possibly even more that you have access to without additional instrumentation. But, based on the information you provided, the Number 1 Bearing cover was disassembled and reassembled to replace the...

There are many current-sensing relays which will operate contacts based on how much current is flowing in a circuit (or the lack of current, as the case may be). You would need to find a relay that has a suitable range of operation for the amount of current flowing in your igniter circuit as...

The more I think about this (and I've thought about it a lot), I think Andrew Davidson's response below is the best response to your second statement. Read it carefully; it's very good. If the prime mover's governor is in Isochronous and the load is at maximum at rated frequency and the load...

control.com, like most websites, has a Search function, though it's at the far right corner of the Menu Bar of every single control.com page. Inside the small white rectangle are the words "search the site"; that's a clue that you type the terms/words you are looking for in the box and then...

[These are my simple replies to two simple statements under the stated conditions. Anyone wishing to take exception to my replies please be specific with your qualifications (meaning no vague or nebulous responses, and not including any questions to be answered off-line). Please ensure your...

First of all, one doesn't calibrate the servo-valve, or the LFBV, or whatever device the servo-valve is being used to position. One only calibrates the feedback from the LVDTs installed on the device. It's been a considerably long time since I've worked on a Mark IV, but as I recall the...

GE, Square D, Telemecanique all make protective collars ("shrouds", "guards", etc.) for their mushroom-head emergency stop push-buttons (in various colors, too!). Any supplier/supply house should be able to look in their catalogs and find a suitable "shroud". An Internet search found this...

> What are the disadvantages of Speedtronic Mark-VIe? One "disadvantage" of the Mark VIe is that one needs to understand the concept of critical vs. non-critical I/O, particularly with TMR configurations. Also one needs to understand the concept of "primary" and "emergency" trip circuits...

> Velocity = 3.14159 * frequency * displacement > > where frequency = (RPM / 60) Unfortunately, the link above is "missing" since the referenced site has been "replaced." But, the answer to your question is still in the reply, as above.

It's difficult to comment without seeing the document, or at least the relevant portion of the document, you are quoting from. Can you post the document, or the relevant portion of the document, to a file-sharing site and then post the URL of the location here so that we could review the...

In theory it would seem possible. However, the way most machines are built, meaning the way the internal piping for charging/purging is constructed, CO2 is chosen because of it's weight versus hydrogen and air. Because CO2 is heavier than air it is "injected" into the bottom of the...

I'm not aware of any instrument which could be permanently mounted in a combustion can to observe or detect "problems" with a fuel nozzle tip. And, remember: A GE-design Frame 9E has 14 combustion cans, hence, a minimum of 14 fuel nozzles/tips (depending on the type of combustion system). So, it...

Hello, This thread, or at least my response to it, is bound to start some bickering (you have to have been reading similar posts on control.com for years to understand, Rick Fisher), but I'm going to dive in anyway. I waited about 24 hours before posting my response to give others a chance to...

A feeble attempt at humour.

> at -40 F the only thing you have to worry about is the capacity of your gearbox Don't you mean -40 C?

G.Rajesh, Yes, because the Speedtronic can make controlling a turbine, its driven device and auxiliaries pretty simple many people to think just about any PLC can be configured and programmed to control a GE-design heavy duty gas turbine. Configuring a PLC-based control system to interface...

> Does the application manual have a procedure? No; but I believe there is information in the Maintenance Manual, GEH-5980, that will be useful. When you replace an SDCC card, you will need to use the SLCC keypad/display to set the Voter ID, and if it is a <C> or <D>, you will need to also...

Naji, You're welcome, and thanks for the feedback. 'Feedback is the most important contribution!'(c) at control.com. There are also Thumbs Up and Thumbs Down icons at the left of the top of every post. As a member of control.com, you can express your pleasure, or displeasure, by...