安科瑞 劉秋霞

ACREL ASJ earth leakage relay’s Application in Philippine mine

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所需。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 earth leakage relay in the Philippine mine.

1.項目概述  Project Overview

該礦廠位于菲律賓，由于電流很大，礦廠用電情況特殊，客戶希望通過在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。由于現場電流很大，所以在剩余電流互感器的選擇上，我們進行了多次溝通，通過銅排以及電流規格給客戶選定了較合適的剩余電流互感器。

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 . 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.

3.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

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

5.安裝圖片 Installation picture

6.總結  Summary

ASJ系列剩余電流繼電器具有較高的性能價格比，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