SD-LXK型零序电流互感器
- 商品名称： SD-LXK型零序电流互感器
- 规格尺寸
- 技术参数
-
- 商品名称: SD-LXK型零序电流互感器
> SD-LXK系列零序电流互感器与SD-LZD2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10KV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。 > 该产品为开启式安装，不受线缆敷设前后限制。由于选用了优质进口硅钢片经特殊工艺加工，互感器具有较高的准确度和准确限值系数，产品安装方便、性能稳定、体积小、容量大、 外型美观、绝缘防潮。 > The combination of SD-LXK series residual current transformers and SD-ZLD2 type current protection 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 10kV, alsocan be used on other types of ground system. > The product is split core style, will not be restricted by cables installation sequence. Since it uses fine imported silicon steel sheet with special processing, the transformer has high precision and accuracy, it has the features such as convenient installation, stable performance, small size, high capacity, fine appearance, moisture-proof and insulation and so on.
单位（unit）:mm
规格Type
尺寸Dimension
外形尺寸
Outline dimension
穿孔尺寸
Perforation dimension
安装尺寸
Mounting dimension
安装方式
Installation Steps
D
H
C
F
d(Φ)
A
B
LXK-Φ50
110
135
52
100
50
-
90
开启式 Split core type
LXK-Φ80
165
169
66
130
82
110
100
LXK-Φ100
184
189
66
130
104
110
100
LXK-Φ120
210
212
69
130
122
110
100
LXK-Φ140
235
250
70
130
140
110
100
LXK-Φ150
235
326
66
180
155
150
116
LXK-Φ160
265
350
70
180
160
160
120
LXK-Φ180
300
375
70
280
180
220
120
LXK-Φ200
330
405
70
280
205
220
120
LXK-Φ220
345
420
70
280
225
220
120
LXK-Φ240
365
440
70
280
240
220
120
LXK-Φ260
390
465
70
280
260
220
120
LXK-Φ300
430
510
70
280
305
220
120
-
规格型式Type
LXK-Φ50～LXK-Φ300
LXK-Φ80～LXK-Φ300
产品类别category
测量级零序互感器 Measuring ZCT
保护级零序互感器 Protective ZCT
准确级（CL)
0.5
1 3 10P5
10P10 额定电流比（A）Rated current ratio
额定容量（VA）Rated burden
50/5
2.5
1
75/5
2.5
1
100/5
2.5
2.5
2.5
150/5
2.5
3.75
3.75
200/5
2.5
2.5
5
5
300/5
2.5
2.5
5
10
7.5
400/5
2.5
2.5
5
15
10
≥500/5
2.5
5
7.5
20
15
50/1
2.5
1
75/1
2.5
1
100/1
2.5
2.5
2.5
150/1
2.5
3.75
3.75
200/1
2.5
2.5
5
5
300/1
2.5
2.5
5
10
7.5
400/1
2.5
2.5
5
15
10
≥500/1
2.5
5
7.5
20
15
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、 电动机保护、 SD-ZLD2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、开启式零序电流互感器，不受线缆敷设先后限制，安装时应注意接触面清洁、对齐后紧固；
5、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 adapt to microcomputer protection, motor protection, SD-ZLD2 type current 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, ground system and the protected apparatus, the technical requirements to the ZCT would be different, can custom design upon needs;
4、The split core ZCT will not be restricted by cables installation sequence, when fixing, attention to the cleaning of the contact area, keep alignment and then fix closely;
5、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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