Vanguard TRM-20_40 - Manual (Page 21)

REV 1 TRM-20 AND TRM-40 USER’S MANUAL
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3.3 Typical Connections to a Load Tap Changer (LTC)
Figure 2. Typical Connections to a Load Tap Changer (LTC)
3.4 Typical TRM-20/40 Cable Connections
WARNINGS
• Do not touch or disconnect any test lead that is connected to a transformer
terminal while high current is being conducted during a test. Failure to heed
this warning can result in electric shock to personnel and/or damage to the
equipment.
• Disconnect the test clips from the transformer bushing only after the TRM
has completely discharged the transformer. Always disconnect the test clips
slowly from the transformer bushing to prevent an accidental flash-over.
Figure 3. Typical TRM Connections Diagram for A Dynamic Resistance Test