Have a friend who is a maint. manager at a large municipal waste water treatment facility. He is looking to acquire a data logger and asked me if I had any experience w/ a Fluke 1736. I haven't had to use a data logger in years and years.
From what I gather the primary use would be for...
I normally work the instrumentation/DCS side of things motor related so I dont deal with motors/ motor starting that often.
I was at a WWTP the other day tying some vibration probes into the DCS and was working near the MCC where a plant operator was changing a motor controller on a 100 HP...
I work in the oil refining industry where EPA regs are mandating on certain equipment such as flares, TRS analyzers with ranges as high as 500,000 ppm TRS.
Our cal cylinders are generally 35% H2S at 2000 psi. The other day a cylinder regulator failed open exposing the low pressure side (and...
We have a customer who's waste water treatment plant flow metering has become very prone to damage from lightning strikes.
Historically the field installed flow meters were connected to strip chart recorders in the control room w/ very rare storm damage.
In the last year or so they have...
I don't post here often, but enjoy reading the posts concerning motor and controls- I've spent the last 40 yrs on low voltage D.C instrumentation........
Had a customer call the other day complaining that his Eaton Cutler Hammer size 6 contactor would not pull in- he gave a model no.A10JN0-C1...
Came across an Allen Bradley 509 motor starter component the other day and was interested to find out its'use. It was in the parts cabinet with verbage "load balancer" imprinted on it. Looked somewhat like an aux contact w/o the contact!
We have a municipal client who had a catastrophic piping failure several years ago in an underground vault that caused flooding and major damage to the motors and controls. The failure occurred in a 25 year old 10" cast iron pipe tee feeding three pumps. The tee had probably been leaking to the...
Hello,
I'm more of a low voltage, instrumentation type and was curious about how the power company's pole mounted lightning arrestors work- say at the 14 kv level. I'm used to the gas filled or MOV type down here at the lo voltage level.
Can they fail in such a manner that a visual inspection...
In the past few years a client of ours has purchased several packaged skids with the GE Fanuc 90-30 series plcs running the controls. They are wanting us to provide primarily program save/storage and reload corrupted program functions. Also may have a need on rare occasions to modify a program...
I was curious as to whether or not there was a relatively inexpensive way to convey a contact closure that could be transmitted via power lines to an autodialer a couple of miles away.
I have a municipal customer where one of their wellhouses has no autodialer to indicate when the pump...
Hello-
I enjoy reading this forum but dont work w/ motors regularly so I haven't posted here yet-
Last week we had a customer who's 75 hp 460 volt submersible well motor went bad (old age). It has been started for years from a soft start w/ internal bypass contactor. Soft start has an initial...
Hopefully this is the right forum-I have a client (municipal) who serves domestic water to an established appartment complex. I was called to look at a magnetic flow transmitter, installed eight yrs. ago, within the complex with regard to continual lightning damage of the flowmeter electronics...
I have a client who has acquired 8 or so 90-30 PLCs (374 processors) in the last few years. Periodically a sitiation will arise whereby they need to reload a program.
Does G.E. offer software that they could install on their laptop to upload/download programs? They will not need to...
I am not directly involved with motor controls, as I deal more with control systems. We have an application where we are using a 0-40a/4-20ma current xmitter to monitor a 15 hp 480/3ph pump motor. The motor is fed from an MCC and is controlled via an across the line starter and protected by...
I do not have any experience with generators or calculating generator loads, but I just happened to notice the other day on a portable 3 phase generator nameplate a power factor. There was obviously a KVA rating but I don't remember if there was also a KW rating. How does this power factor...
Does anyone have experience (good/bad) with an Allen Bradley solid state OL relay (Cat 592)? I was looking for an adjustable Ol relay to retofit to a size 2 509 starter, and in passing the local A.B. rep. said that they have never sold one. Seemed pricey at $350.00 a pop. I dont remember ever...
