I have a 150 Hp 25 hz motor I would like to install a vfd on it to eliminate the MG set. My concern overheating/ overcurrent in the windings. Is it really an issue? will the speed setting to actual motor speed be say double if i set it up as a 50 Hz motor??
thanks in advance,Joe
I am looking for anyone who has used the kepware opc software to select or program patterns in a UP750 controller?? I am thinking it will only allow me to select from preprogrammed patterns which would be fine. Any help would be great!! Sorry if I posted this in the wrong forum!!
Joe
I am looking for any info on AB PLC integrated to honywell 7800 series flame saftey via controlbus comms. I am looking to use Flex I/O or a controllogix plc and it would be great to just talk to the flame relays.
I am working on a heat treat furnace and i need to know at what temperature rage does,Oxyegn,hydrogen and nitrogen start to get infused into the titanium?
We and the customer and I are not sure if we want to build and indirect fired or direct fired furnace. I have seen heat treating for...
I am going to replace a 40 yr old boiler with a new mod-con boiler. I will be heating with old cast iron radiators. I am going to zone the first and second floors and have a primary zone for the indirect water heater.
I am going to have pumps for each zone.
I am just not sure of the flow rates...
Would anyone know of a good collection of blocks for ladder drawings??
I have made many of my own but i would think that someone has put many of them in a collection. It would save me lots of time.
Thanks,Joe
Gents,
I have equipment that I have designed that passes the uniformity standards of 2750C.
What are the changes in temp uniformity standards in 2750D?
I have a customer that is asking if my equipment will pass 2750D and i think it should be no problem because i was within the 2750C by...
Gents,
I am in the process of putting a heattreat facility together for stainless and alloy steels. It will be a l x w x h--- 30'x6'x 5'
It looks like the level will be around 48"Dp to allow for displacement.
I am thinking of using the same size tank as a cold tank recirculating the fluid from...
I am using a immersion burner to heat and cool a zinc melting furnace. the tube is a ceramic compound. I would like to know if anyone has heard of heating and cooling through the same tube. For example zinc below 850 f burner firing at 100% air and gas. zinc above 860 f burner at 100 % air and...
I am looking for some help on the upgrade of a multi zone car bottom furnace. I cannot get a direct answer on if i need a temp limit for each zone or if i can monitor the whole furnace with one thermocouple with one limit controller. For info no one zone has enough BTU's to push the furnace over...
Gents,
I am looking to control Rh in 5000 cu/ft of air with air replacement changes every 4 hours(low air flow).
The temperature range is 85 F(98%Rh) to 120 F(20%Rh)
The High Rh(95%-90%) at lower temps 85 F to 100 F and lower Rh(75% -20%) at higher temps 100F to 120F.
I am using dry heat...
Would anyone know of any good books on carbon baking? I am helping a customer with some basic controls upgrades and understand the process well but it is always nice to have a good reference book at hand.
Thanks,Fellas and Fellett's
Does anyone have a copy of the instructions for the Microheat III software for modling industrial furnaces? I have just returned to the furnace building field after years of not using this software and I seem to have forgotten all of the steps and information needed to operate this software...
Does anyone know of any good process information on this. I understand the concept but wonder how it works in true operation.
Any help would be appeciated,Joe
I have a Hot water system with a 304 Stainless exchanger in furnace flue (taking on heat) and a Parker boiler (to make up heat, not sure of exchanger material in this) and a titanium exchanger (give off heat) in a tank with Zinc ammonium chloride in it. All piping is mild steel.
I would like to...
I have a Hot water system with a 304 Stainless exchanger in furnace flue (taking on heat) and a Parker boiler (to make up heat, not sure of exchanger material in this) and a titanium exchanger (give off heat) in a tank with Zinc ammonium chloride in it. All piping is mild steel.
I would like to...
I have a Hot water system with a 304 Stainless exchanger in furnace flue (taking on heat) and a Parker boiler (to make up heat, not sure of exchanger material in this) and a titanium exchanger (give off heat) in a tank with Zinc ammonium chloride in it. All piping is mild steel.
I would like to...
Has anyone seen/heard of some sensor to meas the coating thinkness on a continous wire galvanizer line. I just need some sort of sensor i am sure i can work out the instrumentation to collect the information.I think it would be similar to a lvdt with a ref coil and a coil after the coating has...
