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Oil Immersed Industrial Combined Transformer CT VT PT Together Manufacturer Factory price ISO9001 Combined Transformer

PRODUCT INTRODUCTION

JLD-72.5 type voltage transformers are oil immersed combined current voltage transformer.

 

 

PRODUCT DETAILS

JLD-72.5 type voltage transformers are oil immersed combined current voltage transformer. The part of VT is imitation shape tank structure. The core was used cold-rolled silicon steel strip to folded. The high voltage coil adopts sectional winding method. The part of CT is inverted structure. The primary conductor passes through the center of the secondary winding and has high measurement accuracy. The secondary windings are protected within the aluminum shield. The rods part of the two body are insulated with capacitive screen structure. They are inside the porcelain bushing and reduce the amount of oil used in the transformer. We select corrugated metal expander as oil temperature variation compensator and can inspect the oil level through window. Outline dimensions drawing and structure shown in Figure 1.

Sihu Electrical Current Transformer

一、Service condition

a. outdoor

b. Surrounding Temperature Max. temperature: 40, min. temperature :-40.

c. Altitude will not exceed 1000m.

d. Relative Humidity Max. 95%/ Min. 35%

e. 24h average ambient temperature shall not exceed 35.

f. Solar radiation level reaching 1000W/m2 (sunshine at noon) shall be considered.

g. Pollution Level of the area can be . The ambient air is polluted by dust, smoke, corrosive gas, corrosive steam and salt.

h. Wind pressure shall not exceed 0.7kPa (equal to wind speed 34m/s).

二、Main Technical Parameters

Main Technical Parameters

Type

JLD-72.5

Rated   frequency

60Hz

Highest voltage

72.5kV

Insulation level

140/350kV

CT Ith.1s

31.5kA

CT Idyn.

80kA

Rated voltage factor

1.2 con./1.5 30s

Limited burden

500VA

Instalation

outdoor

Creepage distance

2248mm

CT.

secondary terminal

current rated

accuracy class

burden

1S1-1S5

2S1-2S5

1200/5A

5P20

50VA

1S2-1S5

2S2-2S5

1000/5A

1S3-1S5

2S3-2S5

900/5A

1S1-1S4

2S1-2S4

800/5A

1S2-1S4

2S2-2S4

600/5A

1S3-1S4

2S3-2S4

500/5A

1S4-1S5

2S4-2S5

400/5A

1S1-1S3

2S1-2S3

300/5A

3S1-3S3

200/5A

0.2

50VA

3S1-3S2

100/5A

VT.

secondary terminal

primary voltage

secondary voltage

accuracy class

burden

X1-X2

42000V

120V

0.2

75VA

Y1-Y2

42000V

120V

3P

75VA

三、Outline Dimensions and Structure Drawing

The demonstration of oil filled transformers

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