摘要：对电气线路进行接地故障保护，方式接地故障电流引起的设备和电气火灾事故越来越成为日常所需。针对用户侧主要的用能节点，设计安装剩余电流继电器，实时监控各用能回路的剩余电流状态。通过实时监控用能以及相关电力参数、提高用能安全、可靠及维护效率、降低维护的人工成本、实现了对剩余电流监控的无人值守。通过用能的实时监测，数据的采集及报警，监测配电系统中剩余电流，为用户电气线路接地故障保护，防范剩余电流导致的火灾事故和人员触电事故提供保障。现就我司ASJ型剩余电流继电器在马尔代夫环岛水上排屋项目的应用做一简要介绍。

Abstract: Ground fault protection for electrical circuits, equipment and electrical fire accidents caused by ground fault currents are increasingly becoming a daily necessity. For the main energy-consuming nodes on the user side, a residual current relay is designed and installed to monitor the residual current status of each energy-using circuit in real time. Through real-time monitoring of energy use and related power parameters, the safety, reliability and maintenance efficiency of energy use are improved, the labor cost of maintenance is reduced, and the unattended monitoring of residual current is realized. Through the real-time monitoring of energy use, data collection and alarm, the residual current in the power distribution system is monitored, and the ground fault protection of the user's electrical circuit is provided to prevent fire accidents and personal electric shock accidents caused by residual current. Here is a brief introduction to the application of our company's ASJ earth leakage relay in the Philippine mine.

1.项目概述  Project Overview

该矿厂位于菲律宾，由于电流很大，矿厂用电情况特殊，客户希望通过在配电柜内安装剩余电流继电器来监测线路剩余电流，并且希望可以在显示面板上显示实时监测的剩余电流值与其设定的剩余电流值之比值，在此比值达到80%时剩余电流继电器能立即报警。安科瑞ASJ10-LD1A配合剩余电流互感器，成功地解决了客户现场剩余电流监控需求。由于现场电流很大，所以在剩余电流互感器的选择上，我们进行了多次沟通，通过铜排以及电流规格给客户选定了较合适的剩余电流互感器。

The mine factory is located in the Philippines, because the current is very big, electricity supply for mine is special , customers hope that through in the power distribution ark installation of residual current relay to residual current monitoring line, and hope that can be displayed on the display panel real-time monitoring of residual current value rather than setting the ratio of residual current value, the ratio can reach 80% when the residual current relay immediately report to the police. Acrel ASJ10-LD1A with residual current transformer, successfully solve the customer's on-site residual current monitoring requirements. Due to the large current on site, we have communicated for many times on the selection of residual current transformer, and selected the most appropriate residual current transformer for the customer based on copper bar and current specifications.

2. ASJ系列剩余电流继电器介绍  ASJ Series Residual Current Relay

ASJ 系列剩余电流动作继电器可与低压断路器或低压接触器等组成组合式剩余电流保护装置，主要适用于交流 50Hz，额定电压 400V 及以下的 TT 和 TN 系统配电线路，用来对电气线路进行接地故障保护，防止接地故障电流引起的设备损坏和电气火灾事故，也可用来对人身触电危险提供间接接触保护。

产品符合 GB/T 22387-2016《剩余电流动作继电器》的要求。

    ASJ系列剩余电流继电器集线路过电压、欠电压保护功能和线路正常电压自动延时复位功能。该产品主要应用于住宅分户箱进线或单相或三相用电设备配电线路的保护，产品体积小、精度高、结构紧凑，安装方便，是民用建筑领域中的安全保护装置。

ASJ series current action relays can be combined with low-voltage power supplies or low-voltage contactor to form a combined power supply current protection, mainly used for AC 50Hz, voltage and below TT400V devices and TN system piping, in addition to ground fault protection for electrical circuits to prevent ground faults Common equipment damages and electrical failures caused by this can also prevent the danger of personal electric shock and provide direct contact protection.

The product meets the requirements of GB/T 22387-2016 "Catalyst Current Relay".

ASJ series sanitary current relays integrate line over-voltage and under-voltage protection functions and automatic additional functions for normal voltage. The product is small in size, high in precision, flexible in structure and easy to install. It is a safety protection device in the field of civil construction.

3.型号说明  Model description

Technical features

Note 3：ASJ10L-LD1A rated residual action current I N is 10mA-30A continuously adjustable;

Note 4：ASJ10L-LD1A limit non-driving Time N is 0-10S continuously adjustable.

Types of Products

Note1：The function of setting for relay means that you can set the initialization and the output of the relay by yourself, which is acted by the dial switch on the panel; the specific setting guide can be found from the table 5.

Note2：OPTIONAL FUNCTION C: RTU Communication RS485, Model ASJ10L-LD1A/C

4.剩余电流互感器选型 Model Selection of Residual Current Relay

5.安装图片 Installation picture

6.总结  Summary

ASJ系列剩余电流继电器具有较高的性能价格比，作为一种先进的智能化、数字化的剩余电流监控仪表，该剩余电流继电器已广泛应用在民用建筑住宅分户箱进线或单相或三相用电设备配电线路中。

ASJ series residual current relay has a very high performance-price ratio. As an advanced intelligent and digital residual current monitoring instrument, the residual current relay has been widely used in the incoming line or single-phase or three-phase of the household sub-box of civil buildings. Electric equipment in the power distribution line.

参考文献 Bibliography

1.Solutions For Enterprise Micro-grid System 2021.04

安科瑞 缪阳扬