Table 4 Transformer’s specifications under investigation.

From: Transformer windings defects identification using frequency response analysis and advanced data visualization techniques

Parameter

Value

Impedance (%), Frequency (Hz), Phase

2.431, 50, 3

Rated Power (KVA)

1200

Primary Voltage/Secondary Voltage (KV)

20/0.4

Low voltage/High voltage winding Turns

112/5600

Outer/Inner HV Winding Diameter (mm)

1086/987

Outer/Inner LV Winding Diameter (mm)

891/823

Height of Primary/Secondary Windings (mm)

1154/1249

Core Height/Length (mm)

2033/3785

Disk Number of HV Winding

70