We frequently use non-contact AC voltage detectors (e.g. Fluke, Greenlee). They coveniently fit in a shirt pocket, are handy for cursory troubleshooting etc., and do not create any bargaining unit issues realtive to the use of tools since they are non-contact.
Is there such thing as a...
Spector, thanks for the response. I had not previously considered the effects of the internal system volume changing with temperature.
Even at 1000 microns or less, the system stills contains a finite amount of air and moisture. I believe you are saying that the pipes contract at colder...
We recently replaced an air cooled 25 ton condensing unit. Although at the same elevation, the evaporator is indoors and the condensing is outdoors. There is circa 70 feet of pipe between the condensing unit and the evaporator with about 50 feet outdoors. The refrigerant lines are welded...
ScottyUK, the high attrition rate in operations is due to a combination of factors including but not limited to, a high unrelenting work load, long hours with high required overtime, stressful control room enviroment, stress due to ongoing testing (written & simulator) required to maintain...
ScottyUK, I am a EE by education but I have also worked in almost every area associated with these plants. Over a lot of years, aside from engineering, I was a QC supervisor, STA(Shift Technical Advisor - post TMI requiremnt in US)) and went through an 18 month Hot License class (Senior Reactor...
At least in a PWR (I do not know BWRs), H2 is intentionally added to act as an oxygen scavenger for corrosion control. The concentration is required to be >35cc/kg during power operations and must be reduced to <5cc/kg to open up the reactor coolant system when shutdown. This is the major source...
I am familiar with the characteristics of a running three phase induction motor under an abnormal single phase condition. I am looking for information concerning the starting characteristics of a three phase induction motor if it is single phased on a start attempt. Will it start and accelerate...
I am an Electrical Maintenance Department Supervisor at a US PWR and have been in this industry since 1974. First, realistically, I do not think any reasonable person would have a problem with ScottyUK's footer. Second, there is no real difference in the fundamental design of the electrical...
About 25 years ago I looked at two systems for protecting a combined cycle power plant from lighning induced transients. This plant was a first generation plant. Although it was very highly automated and computer controlled (1975 vintage), there was virtually no transient protection on any of...
