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Table 5 Training and validation samples in PSCAD

From: A denoising-classification neural network for power transformer protection

 

Training

Validation

1st one

2nd one

Parameters

Connection

Y/Δ-11

Δ/Y/Y-11

Ratio

230/11 kV

230/35 kV

35/220/500 kV

Leakage resistance

0.1 p.u

Copper loss

0.005 p.u

Iron loss

5%, 7%, 10%

6%

Sampling frequency

20 kHz

2, 10 kHz

Scenarios

NO

Start-up time: 1.001 s, 1.002 s, …, 1.020 s

EF

Occurrence time: 1.001 s, 1.002 s, …, 1.020 s; Type: single phase-to-ground, phase-to-phase, two phase-to-ground faults

HTE

Energization time: 1.001 s, 1.002 s, …, 1.020 s

IF

Occurrence time: 1.001 s, 1.002 s, …, 1.020 s;

Fault turns: 1.5%, 2.0%, 2.5%, 3.0%, and 5.0%

FTE

Energization time: 1.001 s, 1.002 s, …, 1.020 s;

Fault turns: 1.5%, 2.0%, 2.5%, 3.0%, and 5.0%

Numbers

NO/EF

564

225

HTE

478

80

IF

760

160

FTE

760

160