微型电流二次互感器

微型电流二次互感器

参考价: 面议

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2024-09-06 16:35:42
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产地:国产；加工定制:否；
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产品属性
产地
国产
加工定制
否
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江阴市星火电子科技有限公司

江阴市星火电子科技有限公司

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产品简介

微型电流二次互感器，一般使用于计量仪表内，做为仪表的二次互感器，由A转换成mA电流，供仪表使用；

详细介绍

微型电流二次互感器 使用综述

* 使用场合：一般使用于计量仪表内，做为仪表的二次互感器，由A转换成mA电流，供仪表使用；

* 产品特点：尺寸小，准确级高。

微型电流二次互感器 技术参数

* 电流范围: 5-200A；

* 二次信号: 2mA-200mA

* 耐压等级: 2/3KV；

* 额定频率: 50/60HZ；

* 阻燃特性: UL94-V0；

* 使用环境: -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类：双针脚，通常尺寸较小，电流范围也小,通常使用超微晶铁心,精度较高；

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类：四针平行针脚，通常电流从大到小,通常使用超微晶铁心,故精度较高；

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类：前后平行针脚，通常电流从大到小,通常使用超微晶铁心,故精度较高；

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类：三针脚，通常使用硅钢卷绕铁心,故精度没超微晶铁心好,但带载能力强。

尺寸性能

类别

产品规格

额定输入

建议匝比

负载

准确度

尺寸

(输入)

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


典型应用

img

使用方法一：

典型应用电路如图1所示。二次负载基本为0。互感器应选用0负载互感器。通过运算放大器，用户可以调节反馈电阻R值在输出端得到所要求的电压输出。而电容C及电阻r是用来补偿相位差的。如用户使用软件补偿或不需要补偿相位差的场合，电容C及电阻r可以不接。图中运算放大器为通用运算放大器；图1中反馈电阻R的精度与输出电压的精度要求有关；D1、D2二极管为1N4148起保护用，可以不接；C0为抗干扰电容，电容根据的电路及运放技术参数来定，否则会引起输出信号振荡。

img

使用方法二：

典型应用电路如图2所示。并电阻R直接可以得到输出电压。V0=R*I0；R建议使用推荐值，太高容易饱和。图2中C可以起到一定的相位补偿作用，无相位要求可以不加 。

上一篇：电缆式电流互感器的应用范围有哪些？ 下一篇：三相一体电流互感器的工作原理是什么？
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