三相一体电流互感器
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NUMBER:42
NAME:LSZ125-82 three-phase current transformer
Detailed introduction:


The LSZ three-phase integrated current transformer is suitable for installation on the three-phase bushing ring of the switchgear and the main column switch for the measurement and protection of three-phase current and zero-sequence current. It can also be used for multiple cable circuits. Measurement and protection of zero sequence current.

 

The iron core and secondary winding of the series of zero-sequence current transformers are vacuum casted in a flame-retardant plastic housing with high-quality epoxy resin, which is moisture-proof, stable in performance and maintenance-free.

Technical Parameters:

              Conditions of Use:

Current Transformer frequency: 50Hz or 60Hz;,

Ambient temperature: -35 ° C - +55 ° C

Current Transformer secondary current: 5A or 1A;

 Average temperature:  40 ° C.

Power frequency withstand voltage 3kV, 1min;

Altitude: 3000m

Current Transformer expansion current: 120%In;

Atmosphericconditions: no serious pollution in the atmosphere

Implementation standards:GB1208-2006;

WNCB001-2008 (enterprise standard).

P2 represents the primary polarity end, and S1 and S2 represent the secondary polarity end; P2 and S2 are the same name end (reduced polarity).

















Dimensions:

Model

M

mm

φ

mm

D

mm

H

mm

h

mm

L

mm

LSZ107-75

107

75

65

128

64

322

LSZ107-83

107

83

60

150

73.5

340

LSZ110-83

110

83

50

160

87.5

365

LSZ110-80

110

80

65

150

75

342

LSZ125-82

125

82

50

175

100

400

LSZ130-83

130

83

55

146.5

83.5

387

LSZ135-83I

135

83

57

184

100

440

LSZ135-83II

135

83

75

184

110

440

LSZ135-110

135

110

85

180

100

430

LSZ150-65

150

65

85

157

73.5

457


Rated current ratio, accuracy level and rated load table:

Model

LSZ series AC two phase

Use

Measuring current transformer

Protection current transformer

Double winding Current Transformer

Current ratio

I1/I2

Accuracy and rated load(VA)

Double windingAccuracy and rated load(VA)

0.5

1

3

10P15

10P10

10P5

0.5

1

10P10

10P5

100

2.5

 

 

 

1.5

3.75

 

 

 

 

150

3.75

 

 

 

2.5

5

 

 

 

 

200

5

 

 

 

2.5

7.5

2.5

 

 

2.5

300

7.5

 

 

 

3.75

10

2.5

 

2.5

5

400

10

 

 

2.5

5

15

2.5

 

2.5

7.5

500

10

 

 

2.5

5

15

2.5

 

3.75

10

600

10

 

 

2.5

7.5

20

5

 

3.75

10

800

10

 

 

2.5

7.5

20

5

 

5

15

 

Model

LSZ series three-phase

Use

Measuring current transformer

Protection current transformer

Double winding Current Transformer

Rated Current ratio

I1/I2

Accuracy and rated load(VA)

Double winding Accuracy and rated load(VA)

0.5

1

3

10P15

10P10

10P5

0.5

1

10P10

10P5

100

2.5 

5

7.5

 

1.5

2.5

 

2.5

 

2.5

150

2.5

5

7.5

 

2.5

3.75

 

3.75

 

2.5

200

3.75

5

10

 

2.5

5

2.5

 

 

 

300

5

7.5

 

 

3.75

7.5

2.5

 

 

 

400

10

 

 

2.5

5

10

2.5

 

2.5

5

500

10

 

 

2.5

5

10

3.75

 

2.5

5

600

10

 

 

5

10

15

5

 

5

10

800

15

 

 

5

10

15

5

 

5

10

 

Model

LSZ series zero sequence

Use

Zero sequence Current Transformer

Rated Current ratio

I1/I2

Accuracy and Current Transformer load(VA)

3

10P

20/1

0.5

0.5

30/1

0.5

0.5

50/1

0.5

0.5

100/1

1

1

50/5

1.5

1.5

75/5

2.5

2.5

100/5

2.5

2.5

150/5

2.5

2.5

Current transformers with different specifications and parameters can be customized according to user requirements

Wiring schematic:




Office No. 3032, Building 6, No. 97 Changping Road, Shahe Town, Changping District, Beijing, (Chāngpíng shìfàn yuán).

北京市昌平区沙河镇昌平路97号6幢3032(昌平示范园)

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  • Office No. 3032, Building 6, No. 97 Changping Road, Shahe Town, Changping District, Beijing, (Chāngpíng shìfàn yuán)

    北京市昌平区沙河镇昌平路97号6幢3032(昌平示范园)

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