All Tech Talk & Teach Back to Knowledge Center Oil Dielectric Testers What is Guard/Ground Mode? Megohmmeter Readings Possible 1% Input Voltage Regulator on 37.5 kV and 75 kV models. Caution: Charging Load – How to Discharge? Burn Mode – What is it, Why, & When to Use Inductive Compensation – What is it? Examples of Test Currents Needed How much AC load current can be expected based on hipot ratings? How to choose the kVA or load current needed.