I have been trying to locate a 13.8kV on-load (Make before break) transfer switch for the last two days that would allow me to swap feeds from two reclosers being fed from the same transformer. The problem is that one is a dedicated feed and the other shared with some other folks.
However, all...
I have station battery bank (56 2.22V cells @130Vdc) that is breaking down rapidly. Replacement batteries are on order but I need an interim measure to survive until then.
Any thoughts on using a deep discharge inductrial battery in the cirucit? What are pros and cons?
I am attempting to realize a stepwise improvement in power factor (0.71 - 0.85) at an aged facility via the installation of capacitors at several low power factor loads. The attempt is to reduce var import from the utility (as well as the other benefits from power factor correction)
Resonance...
I am attempting to realize a stepwise improvement in power factor (0.71 - 0.85) at an aged facility via the installation of capacitors at several low power factor loads. The attempt is to reduce var import from the utility (as well as the other benefits from power factor correction)
Resonance...
This was posed in the motor controls forum. Just want to see what some of the power guys think about this
I have a cable tray located below a few oil filters to a couple of boilers that has been doused with oil over the years that an insurance risk assessment just uncovered.
As the plant EE I...
I am between a rock and a hard place!!
I have a cable tray located below a few oil filters to a couple of boilers that has been doused with oil over the years that an insurance risk assessment just uncovered.
As the plant EE I am faced with the task of correcting within 6 months. Step 1 is to...
Trying to weigh speed control options for a 3ph 220V AC induction motor. The easiest (and more expensive option) is to use a VFD.
However, I want to take up the challenge to implement the most economic solution while not sacrificing too much functionality. Was looking at the SMC-2 controller...
Are cable joints common practice on HV cables? I have a long run of 6kV cable carrying less than nominal load that has developed a fault mid stream. I normally prefer to re-run damaged HV cables but it is not cost or time effective in this scenario.
What sort of documentaion or procedure is...
Good day,
I have a piece of lab equipment that measures gram per litre solids concentration in certain suspensions.
This is a network arrangement that has been recently upgrade to handle several additional samples. However, the existing vacuum pump has been rendered inadequate. I am in the...
I have been thrown a concept on Motor magnetic center.
After a recent failure it was argued that over tightening a coupling restricted axial movement that is normally expected on larger induction motors once they have been energized or return to rest!
Personally, I have never heard of this...
I have managed to acquire a fairly old 62.5kVA, 3ph, 220/110VAC diesel generator - a MAGNICON Alternator driven by a D6 CAT engine.
It needs a bit of work and I am trying to do some research in order to get some background data on this piece of equipment. Apparently, this is not a common...
I have managed to acquire a fairly old 62.5kVA diesel generator - a MAGNICON Alternator driven by a D6 CAT engine.
It needs a bit of work and I am trying to do some research in order to get some background data on this piece of equipment. Apparently, this is not a common combination as local...
I am trying to rehab a 10 yr old limestone milling plant that uses a Syntron Feeder. The most I can get off the nameplate is F-330-C-DT. From the busted up controls, it seems that it is operated at 230VAC etc..
Any advice on how to proceed in terms of sourcing literature, schematics etc.. I...
I am trying to locate a cost effective bulk solid level measuring device (level switch).
I have just completed a small automation project on a milling system for Limestone and need a status indication from a level measuring device. Some sort of dry contact that I can carry to a PLC or simply...
Hoping to get some assistance from another forum.
I am trying to rehab a 10 yr old limestone milling plant that uses a Syntron Feeder. I can barely make out the nameplateinfo.
Any advice on how to proceed?
I have migrated over from the motor controls forum to get some insight on DL micro PLC's.
I am product hunting and having a bit of trouble choosing between the DL205 and the DL405. I have seen the spec sheets and other threads but need to know the practical and fundamental differneces between...
I am in the process of automating a small scale limestone processing plant and am looking for a cost effective PC based control system.
There a few I/O's (temperature, pressure, current etc) that I want to be able to monitor, control and historize. However, I have been asked to keep within a...
Here is a good one.
Yesterday I was called up on to implement an agitation system inside a sump pit; purpose of which is to create a suspension before the heavy stuff is moved by the sump pump.
I opted to insert a perforated pipe into the pit whose water flow [agitiation]is controlled with a...
