Table 7 Test samples in experiments

Parameters

Connection

Y/Δ-11

Ratio

220/220 V

No-load current,

Loss

1.17%,

0.7%

Short-circuit voltage,

Loss

11.2%,

1.0%

Rated capacity

2 kVA

Sampling frequency

10 kHz

Insulation level

E

Product type

BMD-10

Scenarios

NO

Load: 100%, 75%, 50%, 25% of rated load;

Start-up time: random time

EF

Load: 100% of rated load; Occurrence time: random time; Type: single phase-to-ground, phase-to-phase; Location: primary, secondary sides

HTE

Energization time: random time

IF

Load: 100% of rated load; Occurrence time: random

Fault turns: primary side, 2.3%, 4.5%; secondary side, 4.5%

FTE

Occurrence time: random time; Fault turns: primary side, 2.3%, 4.5%, 9.1%; secondary side, 4.5%, 9.1%

Numbers

NO/EF

48

HTE

58

IF

63

FTE

54