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安科瑞 師晴晴

摘要：對電氣線路進行接地故障保護，方式接地故障電流引起的設備和電氣火災事故越來越成為日常。針對用戶側主要的用能節點，設計安裝剩余電流繼電器，實時監控各用能回路的剩余電流狀態。通過實時監控用能以及相關電力參數、提高用能安全、可靠及維護效率、降低維護的人工成本、實現了對剩余電流監控的無人值守。通過用能的實時監測，數據的采集及報警，監測配電系統中剩余電流，為用戶電氣線路接地故障保護，防范剩余電流導致的火災事故和人員觸電事故提供保障。現就我司ASJ型剩余電流繼電器在馬爾代夫環島水上排屋項目的應用做一簡要介紹。

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 residual current relay in the  water terrace house project around the island Maldives.

1.項目概述  Project Overview

馬爾代夫環島水上排屋主要用于接待世界各地游客，應用現場頻率為50  Hz，電壓為220V的TT或者TN系統配電線路。客戶希望通過在水上排屋配電柜內安裝剩余電流繼電器來監測線路剩余電流，并且希望可以在顯示面板上顯示實時監測的剩余電流值與其設定的剩余電流值之比值，在此比值達到80%時剩余電流繼電器能立即報警。安科瑞ASJ10-LD1A配合剩余電流互感器，成功地解決了客戶現場剩余電流監控需求。

The water townhouses around the island in the Maldives are mainly used  to receive tourists from all over the world. The application site  frequency is 50 Hz and the voltage is 220V TT or TN system power  distribution lines. The customer hopes to monitor the residual current  of the line by installing a residual current relay in the distribution  cabinet of the water row house, and hopes that the ratio of the  real-time monitored residual current value to the set residual current  value can be displayed on the display panel, when the ratio reaches 80%,  the residual current relay can alarm immediately. Acrel ASJ10-LD1A  cooperates with the residual current transformer, Successfully solved  the customer's on-site residual current monitoring needs.

1.ASJ系列剩余電流繼電器介紹  

ASJ Series Residual Current Relay

ASJ 系列剩余電流動作繼電器可與低壓斷路器或低壓接觸器等組成組合式剩余電流保護裝置，主要適用于交流 50Hz，額定電壓 400V 及以下的  TT 和 TN  系統配電線路，用來對電氣線路進行接地故障保護，防止接地故障電流引起的設備損壞和電氣火災事故，也可用來對人身觸電危險提供間接接觸保護。

產品符合 GB/T 22387-2016《剩余電流動作繼電器》的要求。

   ASJ系列剩余電流繼電器集線路過電壓、欠電壓保護功能和線路正常電壓自動延時復位功能。該產品主要應用于住宅分戶箱進線或單相或三相用電設備配電線路的保護，產品體積小、精度高、結構緊湊，安裝方便，是民用建筑領域中的安全保護裝置。

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.

2.型號說明  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

3.剩余電流互感器選型 Model Selection of Residual Current Relay

4.安裝圖片 Installation picture

5.總結  Summary

ASJ系列剩余電流繼電器性能價格比，作為一種先進的智能化、數字化的剩余電流監控儀表，該剩余電流繼電器已廣泛應用在民用建筑住宅分戶箱進線或單相或三相用電設備配電線路中。

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.

參考文獻 Bibliography

1.Solutions For Enterprise Micro-grid System 2021.04