环网柜用互感器
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NUMBER:14
NAME:LTC7-10 Bushing-Type current transformers
Detailed introduction:


Product overview:

The LTC bushing type current transformer is suitable for current, energy measurement and microcomputer protection of power supply equipment in 10kV AC power system. The current transformer has the following characteristics: small size, light weight, and easy installation, and has been widely used in electrical equipment such as compact switchgear cabinets and capacitors.

The ring core and secondary winding of this type of current transformer are vacuum casted in a flame-retardant plastic casing with high-quality epoxy resin, which is moisture-proof, stable in performance and maintenance-free. This model has the advantages of small volume, light weight, compact, and is fixed on the casing of the electrical equipment such as switchgear cabinet and the capacitor, and is simple, harmonious and beautiful.


General specifications:

Specifications:

Rated frequency: 50Hz or 60Hz;

Rated secondary current: 5A or 1A;

Power frequency withstand voltage: 3kV/1min;

Rated expansion current: 120%ln;

Executive standard: 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).

Conditions:

Temperature: -35°C~+55°C;

Daily average humidity: ≤40%;

Altitude: ≤3000m;

Atmosphere: without heavy pollution.


According to different current ratio, accuracy level and rated load, the series of current transformers are divided into the following types. For details, please refer to the parameter table corresponding to each model.


Current ratio, rated power and Specification size  

model

Current ratio1V/5V

rated power in VA

Specification size (mm)

LTC1-10

50600A

≤10VA

φ116×φ78×35

LTC2-10

50600A

≤15VA

φ130×φ82×40

LTCJ1-10

50600A

≤20VA

φ116×φ78×70

LTCJ2-10

20600A

≤25VA

φ130×φ82×80

LTC3-10

75600A

≤10VA

φ125×φ85×50

LTC4-10

50600A

≤20VA

φ155×φ76×80

LTC5-10

50600A

≤20VA

φ135×φ85×50

LTC6-10

100600A

≤10VA

φ125×φ82×35

LTC7-10

50600A

≤20VA

φ116×φ72×70

LTC8-10

100600A

≤10VA

φ特定×72φ×75

LTC9-10

50600A

≤15VA

φ165×φ100×35

LTCS-10

100600A

≤10VA

φ105×φ75×35

LZW20-10

100600A

≤10VA

φ166×φ85×40

LZW28-10

100600A

≤10VA

φ155×φ110×80

LSZC-10

501200A

≤20VA

φ特定×φ45×100

LSTC-10

2501200A

≤20VA

φ特定×φ75×54



Dimensions drawing:


LDC Series dimensions:

model

Φ1

Φ2

D

H

H

LTC1-10

116

78

35

130

70

LTC2-10

130

82

40

145

80

LTCJ1-10

116

78

70

130

70

LTCJ2-10

130

82

80

145

80

LTC3-10

125

85

50

134

/

LTC4-10

155

76

80

170

90

LTC5-10

135

85

50

155

/

LTC6-10

125

82

35

150

86

LTC7-10

116

72

70

128

70

LTC8-10

/

72

75

130

70

LTC9-10

165

100

35

195

112.5

LTCS-10

105

75

35

115

62.5

LZW20-10

166

85

40

170

90

LZW28-10

155

110

80

170

90

LSZC-10

/

45

100

/

/

LSTC-10

/

75

54

130

/


Rated primary currentAccuracy class and rated load 

model

LDC7-10

Current ratio

I1/I2

Accuracy class and rated loadVA

Double winding Accuracy class and rated loadVA

0.2S

0.2

0.5

10P15

10P10

10P5

0.5

1

10P10

10P5

50/1

 

 

2.5

 

1.25

2.5

 

1

 

1

75/1

 

 

3.75

 

1.25

2.5

 

2.5

 

1.25

100/1

 

 

3.75

1.25

1.5

3.75

2.5

3

1.25

2.5

150/1

 

2.5

5

1.25

2.5

5

3

 

1.25

2.5

200/1

 

3.75

5

2.5

3.75

7.5

3.5

 

2.5

5

300/1

2.5

5

7.5

3.75

5

10

5

 

2.5

5

400/1

5

7.5

10

5

7.5

15

5

 

5

 

500/1

7.5

10

 

7.5

10

20

7.5

 

7.5

 

600/1

10

12.5

 

7.5

10

20

10

 

10

 

50/5

 

 

1.5

 

 

1.5

 

1.5

 

2

75/5

 

 

2.5

 

1.5

2.5

2.5

2.5

1.5

3

100/5

 

 

2.5

 

2.5

5

2.5

5

2

3.75

150/5

 

 

2.5

2.5

2.5

5

2.5

5

2.5

5

200/5

 

2.5

5

3.75

5

10

2.5

 

3.75

7.5

300/5

 

5

7.5

5

5

10

5

 

2.5

10

400/5

2.5

5

10

5

7.5

15

5

 

2.5

 

500/5

5

7.5

15

7.5

10

20

7.5

 

3.75

 

600/5

5

10

20

7.5

10

20

10

 

5

rated secondary current is 5A or 1A.



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)

  • www.weineng.com