In our case we contacted the manufacturer and asked what would be the effect(s) of operating their device in an ambient outside their published temperature range. We had this situation many times with manufacturers of various components. Most of the time the manufacturer could not or more...
I thought I should at least tell you guys which solution was implemented. I used a typical motor winding RTD with a 3200V dielectric rating. The RTD was held in place against the lug by a nylon 'holder'. It worked quite well. I also used a typical RTD-input hi-limit relay for shutdown. I...
This is in machinery that has no personnel nearby and must be continually monitored by a PLC to ensure that the upper temperature limit is not exceeded.
Raytek's MID pyrometer: 0 - 85C ambient (problem on low end.
Infra-View: max. ambient ~50C without cooling
Bridex: 0 - 65C
I don't want to add a jacket to the sensing head - there's no cooling water or air (compressed or fan-driven) supply available.
Guess I need to rephrase the question; has anyone installed one of these winding monitoring-type RTDs directly on a 'hot' conductor? In a motor or generator stator, I assume these types of sensors are slipped between windings, of course the windings have insulation if only varnish.
As I mentioned, infrared pyrometers won't work. It's too bad; I agree that it would be the best solution. However we need a VERY wide ambient temperature range for the electronics to operate/survive and we cannot install the transmitter outside of the enclosure.
Trying to find a suitable way of monitoring the lug temperatures of a ~1000V circuit breaker. I see that infrared pyrometers are quite common but that simply won't work in this case. I'd like direct contact rather than monitoring the air temperature near the lugs however the obvious problem is...
I was let go by an EPC engineering company a few weeks ago. I am an I&C Engineer with ~25 years experience in the chemical sector. I've been very interested in a move to the nuclear market for some years and especially so now that I'm unemployed and nuclear work seems to be about the only...
