SD-LJD2型零序电流互感器
- 商品名称： SD-LJD2型零序电流互感器
- 规格尺寸
- 技术参数
-
- 商品名称: SD-LJD2型零序电流互感器
> SD-0.66-LJD2型零序电流互感器与SD-ZLD2剩余电流动作继电器或相关保护电器组合，构成接地故障保护装置。主要适用于0.66KV及以下电阻接地系统、低压配电系统，亦可应用于其它制式的接地系统。 > The combination of SD-0.66-LJD2 residual current transformer and SD-ZLD2 type currentprotection relay or related protection apparatus forms the ground fault protection system, it applies to resistance ground system, low voltage power distribution system that up to 0.66kV, also can be used on other types of ground system.
单位（unit）:mm
规格Type
尺寸Dimension
外形尺寸outine Dimension
穿孔尺寸wndow Dimension
安装尺寸Instalation Dimension
安装方式
Ins talltion MethodW
H
D
A
E
Φ M
N
30LJD2
108
126
70
32
16
-
74
83
E
50LJD2
114
135
60
52
33
-
80
72
E
60LJD2
150
180
78
65
54
-
91
92
E
80LJD2
170
185
78
85
54
-
112
92
E
100LJD2
198
186
78
105
56
-
152
92
E
120LJD2
197
185
70
123
56
-
140
83
E
125LJD2
201
202
90
128
94
-
-
-
E
170LJD2
255
225
60
173
122
-
71
72
E
说明：1、订货时请注明零序电流互感器电流比、额定容量及准确级，互感器技术参数应与保护电器的技术参数相匹配；2、由于系统运行方式、接地制式及保护电器配置不同，对零序电流互感器参数如有不同要求，可按需订制。Notice：1、When ordering, please specify the ratio, rated capacity and accuracy class of the ZCT, the technical specification of the transformers and protection apparatus；2、Due to the difference of power system, ground system and the protected apparatus, the technical requirements to the ZCT would be different, can custom design upon needs.
-
规格型式Type
30LJD2
50LJD2
60LJD2
80LJD2
100LJD2
120LJD2
125LJD2
170LJD2
母排规格Bus Bar（mm）
30×10
50×10
60×10
80×10
100×10
120×10
125×10
170×10
准确级(CL)
1
10P5 1
10P5 1
10P5 1
10P5 1
10P5 1
10P5 1
10P5 1
10P5 额定电流比（A）Rated current ratio
额定容量（VA）Rated burden
75/5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
100/5
2.5
2.5
2.5
2.5
5
2.5
5
3.75
2.5
3.75
2.5
2.5
2.5
2.5
2.5
150/5
5
5
5
5
10
5
10
5
5
5
5
5
5
5
5
2.5
200/5
7.5
7.5
7.5
5
10
5
10
7.5
10
7.5
7.5
7.5
7.5
7.5
10
5
300/5
10
10
10
10
15
10
15
10
15
10
10
10
10
10
10
5
400/5
15
15
15
10
15
10
15
15
15
15
15
15
15
15
10
10
≥500/5
15
15
15
10
15
10
15
15
15
15
15
15
15
15
15
10
75/1
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
100/1
2.5
2.5
2.5
2.5
5
3.75
5
3.75
5
3.75
2.5
2.5
2.5
2.5
2.5
150/1
5
5
5
5
10
5
10
5
10
5
5
5
5
5
5
2.5
200/1
7.5
7.5
7.5
5
10
5
10
5
10
5
7.5
7.5
7.5
7.5
10
5
300/1
10
10
10
10
15
10
15
10
15
10
10
10
10
10
10
5
400/1
15
15
15
10
15
10
15
15
15
15
15
15
15
15
10
10
≥500/1 15 15 15 10 15 10 15 15 15 15 15 15 15 15 15 10 备注1、该系列零序电流互感器为常用规格，额定二次电流5A或1A，适用于微机综保、电机保护、SD-ZLD2型剩余电流动作继电器等电器；2、订货时请注明零序电流互感器孔径、额定一次/二次电流、额定容量以及准确级，注意与保护电器的技术参数相匹配（如与我司继电器配套使用，则只需确定互感器孔径）；3、由于系统运行方式、接地制式以及保护电器配置不同、对零序电流互感器技术参数要求将不同，可按需订制；4、零序电流互感器的主绝缘由一次电缆保证，产品仅考核二次对一次及对地的工频耐压（3KV）。1、This series zero sequence current transformers are common types, rated secondary current is 5A or 1A, they apply to microcomputer protection, motor protection, SD-ZLD2 type current protection relay and so on；2、When ordering, please mark the perforation dimension, rated primary/secondary current, rated capacity and accuracy class of the ZCT, and attention to coordinate with the technical parameters of the protected apparatus (if used with our relay, only the perforation dimension of the transformer is required)；3、Due to the difference of power system, grounded system and the protected apparatus, the technical requirements to the ZCT would be different, can be custom design upon needs；4、The mail insulation of the ZCT is secured by the primary cables, only to check the power frequency withstand voltage between secondary and primary(3kV).
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