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Transformer Test Sheet

Project Information

form id= "frm-swbd-proj-info"

Name Plate Data

form id= "frm-mv-dry-nameplate"

AL
60 Hz 50 Hz
AL

Visual and Mechanical Inspection

Basic form layout

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Gauges

Basic form layout

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TTR

Transformer Turns Ratio

Winding Resistance Test

id= "frm-mv-wind-res"

NETA ATS 7.2.2: Measure the resistance of each high-voltage winding in each de-energized tap-changer position. Measure the resistance of each low-voltage winding in each de-energized tapchanger position

Insulation Resistance Test

id= "frm-mv-dry-ins"

NETA ATS: Perform insulation-resistance tests winding-to-winding and each winding-to-ground. Apply voltage in accordance with manufacturer’s published data. In the absence of manufacturer’s published data, use Table 100.5. Calculate polarization index.