A young engineer has asked a question and I don't have a good answer other than that is how I've always done it.
A motor that has an Auto Start function, uses a Hand - Off - Auto, 3 position selector switch. If switch is in Hand (motor running) and it needs to be placed in Auto, if Auto is...
At my house I have a 5 ton, 2 stage scroll compressor condensing unit, and my house lights blink on the unit starting.
Specs are 118 LRA, 230V, 23 FLA.
Lamps are incandescent 130 V.
Service size is 200A, 120/240V, single phase
Measurements at the unit disconnect switch are:
Normal Voltage 246...
Hi,
I am builidng a house on an empty lot. I will have to add dirt fill about 18" to raise the lot elevation. It will be a raised house built on piers. The lot is covered in St. Augustine grass. Do I have to remove the grass before I fill the lot.
Thanks
I would like to calculate the volume bottle size required to close a fail open pneumatically operated on/off valve 3 times, when the Instrument Air Supply header has failed. My actuator size is 10,500 cubic inches. The volume bottle would have 100psig air and the actuator requires 60 psig air...
Hello,
I work for a major refining organization and we are considering using remote I/O for our PLC applications in new units we are building. Presently all existing PLC equipment for the plant is located in air conditioned buildings. By using remote I/O we expect to reap large cost savings...
