Short Circuit Impedance - Raytech mini-ATOS Instruction Manual

Mini automatic transformer observation system
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10.6 Short Circuit Impedance

The short circuit impedance measurement view explained following the Figure 75.
Open the main menu
Back to the test plan page
Open test object quick access
Test settings
The selected test voltage and frequency
The actual tap position and its rated voltage of primary side. It can be changed by tapping on
the pencil button
The actual tap position and its rated voltage of non-primary side
To enable or disable the temperature corrected resistance view
The phase and the corresponding connections which be used automatically by the instrument
to test each phase
The measured short circuit impedance value
The measured AC resistance value
The measured Leakage reactance value
The measured temperature during the measurement or the reference temperature when
resistance is corrected
The deviation from 3 phases short circuit impedance average; green means the deviation is
less than the limit and the test is Passed. See chapter 4.5.4
90297-0.24 Instruction Manual mini-ATOS
Figure 75: Short circuit impedance measurement view
Preliminary
Page 90 of 125

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