Megger MTO210, Instruction Manual

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AVTMMTO210 Rev 7 Sept 2013
ii
List of Figures
MTO210 Transformer Ohmmeter Test Set.................................................................................................... iii
Figure 1: MTO210 Front Panel ........................................................................................................................ 3
Figure 2: Single Winding Measurement ......................................................................................................... 26
Figure 3: Dual-Winding Test ........................................................................................................................... 28
Figure 4: Reading obtained is per phase, Resistance of A-N Winding ..................................................... 31
Figure 5: Reading obtained is between pairs of terminals, Resistance of A and B Windings ................ 32
Figure 6: Reading is between pairs of terminals. Resistance of A in parallel with B+C windings ........ 32
Figure 7: Odd Position Tap ............................................................................................................................. 36
Figure 8: Even Position Tap ............................................................................................................................ 36
Figure 9: Connection to a Regulator .............................................................................................................. 37