Stability Test

What does it say about it in the user manual that came with the equipment?

Tiptoe away silently.

• http://www.venable.biz/tp-01.pdf this is a PDF with diagrams that will show you how to perform a general electrical stability test
  
• http://www.edaboard.com/thread47168.html this forum holds a couple of posts that should prove helpful in guiding you through a transformer stability test providing you know the terminology

Is this just for interest or study?

If not and you have to ask the question I doubt your qualified to be doing such tests.

I just searched the "J P Transformer Book" and the "Electrical Transmission Reference Book" and could not find any entries for an electrical "Stability Test" of Power Transformers (there were entries for the mechanical and chemical stability of the materials used in the their construction though).

Are you referring to the stability of differential protection schemes for power transformers with some form of LTC (Load Tap Changing)? Perhaps you could elaborate on what this test is for,

I'm surprised that post #6 by naro was flagged as Off Topic when in fact it is the positive response to post #5; i.e., he is trying to perform a stability test of his differential relaying protective scheme.

This test ensures that the relaying is stable under normal operating conditions inside the zone such as tap-changing under load and does not cause a trip for any disturbance outside its zone of protection. What's really being tested is the uniformity of response of the CTs to the varying current due to where they are on their operating curves as well as the trip-window of the differential relay.

He should consult with the supplier of his protection system for guidance.