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目錄:江陰市星火電子科技有限公司>>二次互感器-微型電流互感器>> 微型電流二次互感器

微型電流二次互感器
  • 微型電流二次互感器
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產(chǎn)地:國產(chǎn) 加工定制:否

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更新時間:2024-09-06 16:35:42瀏覽次數(shù):402評價

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產(chǎn)地 國產(chǎn) 加工定制
微型電流二次互感器,一般使用于計量儀表內(nèi),做為儀表的二次互感器,由A轉(zhuǎn)換成mA電流,供儀表使用;

微型電流二次互感器 使用綜述

* 使用場合:一般使用于計量儀表內(nèi),做為儀表的二次互感器,由A轉(zhuǎn)換成mA電流,供儀表使用;

* 產(chǎn)品特點:尺寸小,準確級高。

微型電流二次互感器 技術(shù)參數(shù)

* 電流范圍: 5-200A;

* 二次信號: 2mA-200mA

* 耐壓等級: 2/3KV;

* 額定頻率: 50/60HZ;

* 阻燃特性: UL94-V0;

* 使用環(huán)境: -25℃至50℃。

Type A: Dual pins, usually smaller in size and smaller in current range, usually using ultra-fine crystal cores with higher precision;  Type B: Four-pin parallel pins, usually the current is from large to small, usually using ultra-microcrystalline iron core, so the accuracy is higher;  Type C: Front and rear parallel pins, usually the current is from large to small, usually using ultra-microcrystalline iron core, so the accuracy is higher;  Class D: Three-pin, usually use silicon steel wound core, so the accuracy is not as good as the ultra-microcrystalline core, but the load capacity is strong.

A類:雙針腳,通常尺寸較小,電流范圍也小,通常使用超微晶鐵心,精度較高;

Type A: Dual pins, usually smaller in size and smaller in current range, usually using ultra-fine crystal cores with higher precision;  Type B: Four-pin parallel pins, usually the current is from large to small, usually using ultra-microcrystalline iron core, so the accuracy is higher;  Type C: Front and rear parallel pins, usually the current is from large to small, usually using ultra-microcrystalline iron core, so the accuracy is higher;  Class D: Three-pin, usually use silicon steel wound core, so the accuracy is not as good as the ultra-microcrystalline core, but the load capacity is strong.

B類:四針平行針腳,通常電流從大到小,通常使用超微晶鐵心,故精度較高;

Type A: Dual pins, usually smaller in size and smaller in current range, usually using ultra-fine crystal cores with higher precision;  Type B: Four-pin parallel pins, usually the current is from large to small, usually using ultra-microcrystalline iron core, so the accuracy is higher;  Type C: Front and rear parallel pins, usually the current is from large to small, usually using ultra-microcrystalline iron core, so the accuracy is higher;  Class D: Three-pin, usually use silicon steel wound core, so the accuracy is not as good as the ultra-microcrystalline core, but the load capacity is strong.

C類:前后平行針腳,通常電流從大到小,通常使用超微晶鐵心,故精度較高;

Type A: Dual pins, usually smaller in size and smaller in current range, usually using ultra-fine crystal cores with higher precision;  Type B: Four-pin parallel pins, usually the current is from large to small, usually using ultra-microcrystalline iron core, so the accuracy is higher;  Type C: Front and rear parallel pins, usually the current is from large to small, usually using ultra-microcrystalline iron core, so the accuracy is higher;  Class D: Three-pin, usually use silicon steel wound core, so the accuracy is not as good as the ultra-microcrystalline core, but the load capacity is strong.

D類:三針腳,通常使用硅鋼卷繞鐵心,故精度沒超微晶鐵心好,但帶載能力強。

尺寸性能

類別

產(chǎn)品規(guī)格

額定輸入

建議匝比

負載

準確度

尺寸

(輸入)

A

B

C

D

Z

P

A

T

Q

mm

mm

mm

mm

mm

mm

A

wctΦ4.5

5(20)

1000

10

0.2

19.2

20

11

4.5

12


A

WCTΦ5

5(20)

1000

10

0.2

19

18

10.5

5

12


B

WCTΦ5.6

5(20)

1000

10

0.2

19

20

11

5.6

6.4

15.2

B

WCTΦ7

5(40)

2500

20

0.1

23.7

24.5

11

7

15/19

10

B

WCTΦ8.9

20(80)

2500

50

0.1

26.4

28.2

17

8.9

15/19

16

C

WCTΦ7.5

10(60)

2500

20

0.1

23.5

24.5

11.2

7.5

18

8

C

WCTΦ13.2

30 (90)

2500

50

0.1

37.7

28.5

14

13.2

24.7/33

13

D

WCTΦ9.5

20 (60)

1000

100

1.0

23.8

23.8

11.1

9.5

15.24

7.62

D

WCTΦ11.4

30(90)

1000

100

1.0

30.2

30.3

14.3

11.4

20.32

10.16

D

WCTΦ14.6

S30(150)

1000

100

1.0

38.1

38.1

15.9

14.6

33

10.16

D

WCTΦ19

100(150)

1000

100

1.0

44.5

44.5

14.3

19.05

35.56

10.16

D

WCTΦ23.

8150(200)

1000

100

1.0

55.6

55.6

20.6

23.8

45.72

12.7


典型應(yīng)用

img

使用方法一:

典型應(yīng)用電路如圖1所示。二次負載基本為0?;ジ衅鲬?yīng)選用0負載互感器。通過運算放大器,用戶可以調(diào)節(jié)反饋電阻R值在輸出端得到所要求的電壓輸出。而電容C及電阻r是用來補償相位差的。如用戶使用軟件補償或不需要補償相位差的場合,電容C及電阻r可以不接。圖中運算放大器為通用運算放大器;圖1中反饋電阻R的精度與輸出電壓的精度要求有關(guān);D1、D2二極管為1N4148起保護用,可以不接;C0為抗干擾電容,電容根據(jù)的電路及運放技術(shù)參數(shù)來定,否則會引起輸出信號振蕩。

img

使用方法二:

典型應(yīng)用電路如圖2所示。并電阻R直接可以得到輸出電壓。V0=R*I0;R建議使用推薦值,太高容易飽和。圖2中C可以起到一定的相位補償作用,無相位要求可以不加 。

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