PART

INDEX

1#

2#

3#

4#

5#

PART

INDEX

1#

2#

3#

4#

5#

BODY

Sealing condition

2

4

3

2

4

IRON CORE

Ground current (A)

0.14

0.36

0.07

0.28

0.19

Oil pillow temperature (˚C)

69

78

66

74

83

Total hydrocarbon (μL/L)

158

178

144

158

163

Top oil temperature (˚C)

52

59

50

59

61

Acetylene (μL/L)

1.2

2.3

0.8

1.5

2.1

Oil leakage condition

3

3

4

1

4

CO2/CO ratio

30

38

46

34

35

Hydrogen (μL/L)

157

169

148

155

145

Water in oil (ppm)

5

9

3

4

6

SWITCH

Action situation

2

3

4

3

4

WINDING

Short circuit resistance (%)

1.4

3.8

1.1

2.5

4.3

Noise

4

3

3

1

2

BUSHING

Capacitance (%)

0.8

1.4

2

0.9

1.9

Insulation resistance (MΩ)

18

10

21

13

19

Dialectric loss angle (%)

2

4.3

1.2

1.5

3.8

Absorption ratio

1.2

1.09

1.34

1.45

1.26

Partial discharge (%)

76

98

89

65

9

COOLING SYSTEM

Congestion

2

3

4

2

2

DC resistance (%)

1.26

1.08

0.82

0.94

1.35

Fan situation

3

4

3

2

1