How to remove the power transformer thermal trip function?
How to remove the power transformer thermal trip function?
(OP)
DO you disconnect at the end of Hot Spot Winding temmperature gauge, or at the relay end?
Is the transformer outage required?
Thanks
Is the transformer outage required?
Thanks






RE: How to remove the power transformer thermal trip function?
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If we learn from our mistakes I'm getting a great education!
RE: How to remove the power transformer thermal trip function?
The trips were always caused by wrong setting or the mel-function of the old mechanical gauges. So we decide to remove the automatice thermal trip function, replace with manual trip. Normally, industry wide, the thermal trip is set at 140C, but we were seldom to load the transfomrer up to 90C. So there will be plenty time for the dispatcher to react after alarms set out. It's quite common to remove the thermal trip function
RE: How to remove the power transformer thermal trip function?
RE: How to remove the power transformer thermal trip function?
Of course, if all you're doing is lifting the leads from the contact, then there's no problem, but some people get ambitious.
old field guy