开口互感器在越南美的工业云系统中的应用

 Application of Split Core Transformer in Industrial Cloud System of Vietnam 

摘 要：分析低压开口式电流互感器的原理，结合工程实例分析开口电流互感器在低压配电系统中，主要是改造项目中的应用及施工细节，为用户快速实现智能配电提供解决方案，该方案具有成本低、投资少、安装接线简便等优点，有利于低压智能配电的进一步推广和应用。

Abstract: this paper analyzes the principle of low voltage split core current transformer, analyzes the application and construction details of split core current transformer in low voltage distribution system with engineering examples, and provides a solution for users to realize intelligent distribution quickly. The scheme has the advantages of low cost, low investment and simple installation and wiring, which is beneficial to the further popularization and application of low voltage intelligent distribution.

关键词：开口式电流互感器；低压配电系统；改造项目；工作原理；应用；施工细节

Keywords: Split core current transformer; Low Voltage Distribution System; Renovation Project; Principle; Application; Construction Details

1.引言 Introduction

目前市场大部分低压电流互感器主要用于新项目的建设，由于经济的飞速发展，企业对节能减排意识逐渐提高，许多企业的电气特点是： 

At present, most of the low voltage current transformers in the market are mainly used in the construction of new projects. Due to the rapid development of economy, the awareness of energy saving and emission reduction is gradually improved. The electrical characteristics of many enterprises are:

1)电气柜运行的时间长；

2)大部分电流互感器只是对系统电流进行测量，也没有相应的计量装置和保护装置，计量装置只有一块供电局的总表，而对所有车间电能无法进行考核，系统线路保护装置根本没有；

3)大部分线路干线为大规格铜排，拆卸需要大量的人力和时间，安装常规电流互感器不方便；

4)企业生产时间比较紧迫，不能长时间停电。

所以如需对上述电气进行改造，采用开口式电流互感器可以为用户节约大量的投资。

1）Long running time of electric gas cabinet;

2）Most of the current transformers only measure the current of the system, and there is no corresponding metering device and protection device. The measuring device has only one master table of the power supply bureau, but the electric energy of all workshops can not be assessed, and the system line protection device is not available at all,;

3）Most of the main lines are large size copper bar, it takes a lot of manpower and time to disassemble, it is not convenient to install conventional current transformer;

4）Enterprise production time is more urgent, can not long time blackout.

Therefore, the use of split core current transformer can save a lot of investment for users.

2.产品设计Product design

1）结构特点 Structural characteristics

我司开口互感器型号齐全，有线缆专门用的圆孔互感器，有适用于铜排的方孔互感器，本产品外壳材料采用PC/ABS合金，具有耐高温、机械强度高、环保等特点；铁芯采用有取向冷扎硅钢片，具有性能稳定，机械强度高，导磁率较高等特点；具体结构如图1所示。

Our company has a complete range of split core current transformer models, including round hole transformers for cables, and square hole transformers for copper bars., this product shell material is PC/ABS alloy, with high temperature resistance, high mechanical strength, environmental protection and other characteristics; The core adopts oriented cold bonded silicon steel sheet with stable performance, high mechanical strength and high magnetic conductivity.