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In an effort to resolve a difference of opinnion could someone difinitively validate clarify the correct purpose for a diode being placed across a relay or soleniod coil. Is it there to protect the coil from damage of the collapsing field; Or is it there to protect circuit boards from the...

Is there any general standard rule fordetermining exhaust back pressure that states the amount pressure is increased for every elbow, 45 ect and lenght of pie distance.

Does anyone know where I can find a chart or spec's on how much back pressure is created by pipe diameters, elbows and 45's and 90 degree elbows. I'm trying to create an automatic calculator to provide both for my self and comrads at work to ensure gen set start ups are properly done.

Can someone explain the difference between closed transition and over lapping Neutral regarding transfer sdwitches.

Does anyone know where I could find a list of what circuit breakers are refered to such as a 52 device, 86 device 489 ect ect. And what their purpose's are.

I think you have a governor stability issue. Depending on whos governor your using and or type you should look at the actuator compensation , and or gain settings. If your unit is an older Detroit with an SG type governor there is an adjustment inside that requires the top be taken off to gain...

Does anyone know of an easy way to determine (in the field)a generators pitch. In other words How can I figure out what the pitch of an existing generator so I know what to order to put on line with an older unit for paralleling?

I'm starting to look into the possibilty of installing a solar panel aray to off set the rising cost of electric power. My current average monthly Kwh for a 30 day period runs about 2500 kwh. can anyone offer up any ideas for the size / (number of) panels and wattage that would be needed. And...

To all those how took the time to assist me with this problem I would like to offer my extereme gratitude and thanks. I went to the site today Monday 6-12-06 to find that the client had already started the unit and had it fial before he even got fully under load. I took your advise regarding...

Hi, (itsmoked) you've reflected on the regulators several times so let me try and clear the air. I am merely one gen tech and not the first to be sent to this site. I am a tech that dont just change parts rather I will spend off time as well as my week ends trying to come up with solutions to...

Hello again and once again your input is appreciated. As to the DC amperage output from the regulator it was running at between 4.6 to 5.7 respectively based on the loading. The generator regulator exciter rated max DCA is 8.6 amps. Oh, regarding the meter I spoke about, if you go to the main...

Thank's (Waross) for the time to reply. I went back to the site today and found out that the gen set is feeding two different types of soft starts. One is a transformer type and is in the circuit all the time the second is an SCR type that is supposed to disconnect from the SCR's once up to...

Can someone shed some light on the possible or real effect's of inductive loading of a PM generator set that is running with loads that have power factors from as low as .20 pf to .36pf on average. And whether or not this would be the most likely cause of regulators going bad every 30 to 45...

I have use such items in the past to allow me to do load test's on single phase generators using three pahse load banks, the item I used was calle a ( ROTOPHASE) here is a web page that may assit you. http://www.fortier.qc.ca/anglais1.htm

My water heater went up the other nite and I (having several women in the house) had to do something right then! So I set out to obtain a replacement how ever at the time of night I was doing this the only thing I could come up with was a 85 gallon hot water heater (electric) which I bought and...

Dont forget about an in phase monitor since you will be going back and forth while loads are connected.

I have been keeping a eye on the pressure as well as noteing lower flow rate at the spigot when I switch to hot from cold. Flow rate is definantely less on the hot side. The checks are no more than a plastic ball in a piece of pipe that acts to keep from heateing the entire hot water line when...

To all, the only thing that can be said is simply this (Seeing is beleaving) if you havent studied , havent experienced havent been schooled on a product then (NO ONE) can objectively provide any honast real opinnion on anything. As mentioned in other replies go to the web site "Active...

OOP'S forgot to add the link ! My apologies. http://www.activepower.com/index.asp?pg=product_cleansource_ups

Thank you for your input, but it seems that you arent familiar with the Cat line of UPS, by the way Cat dosent make them they are a an afiliate. But you might be surprised to see just waht they can and cannot do. The amount of discharge time at full load for a model 300 has (by myself) been...