5X00481G01占位模塊,5X00481G01產(chǎn)品尺寸
主要技術(shù)指標如下：
電壓等級：1140V/660V；頻率：50HZ；
總額定電流：800A、1200A，單臺工作電流可達到400A；
漏電閉鎖保護：附加直流檢測，1140V-40K歐、660V-22K歐；
漏電保護動(dòng)作：1140V-20K歐、660V-11K歐；
短路保護：為額定電流的3-10倍；
過(guò)壓和欠壓保護：0.75Ue；
超溫保護和超限保護；
開(kāi)關(guān)設備有漏電試驗和過(guò)流試驗按鈕，可隨時(shí)檢測饋電開(kāi)關(guān)保護功能；
5X00481G01占位模塊系統原理圖
目前國內大多數饋電開(kāi)關(guān)采用西門(mén)子 變送器 漏電保護器控制的方案，盡管該方案能達到系統要求，但是在控制功能上有很大局限性。采用此方案替代上述方案后可以對整個(gè)饋電開(kāi)關(guān)的工藝參數如電流、電壓等參數進(jìn)行在線(xiàn)檢測。降低了客戶(hù)的成本，保證了工藝條件的穩定、提高了產(chǎn)品的響應速度。采用文本顯示屏，利用顯示屏反應出來(lái)的報警信息，工作人員很容易排除故障。提高了生產(chǎn)效率。
6、系統亮點(diǎn)
該系統所采用的三相交流電及漏電監測模塊UN 231-0BH22-0XA0是一大亮點(diǎn)，該模塊通過(guò)交流互感器能夠實(shí)現對交流電信息的采集，配合CPU的運算和控制，可以實(shí)現過(guò)壓、欠壓、過(guò)載、短路、漏電、三相不平衡保護等功能；能夠對電網(wǎng)絕緣電阻進(jìn)行監測；具有零序電壓和零序電流采集功能。該產(chǎn)品是UN200PLC的一個(gè)擴展模塊系統中主要的控制核心為我公司已經(jīng)取得煤安防爆資格的煤礦用帶式輸送機保護控制箱，12條皮帶每臺皮帶用1臺控制箱控制，共12臺控制箱，每個(gè)控制箱均能實(shí)現急停保護、超溫保護、欠速打滑保護、煙霧保護、跑偏保護、堆煤保護、張緊力保護功能，可實(shí)現就地操作以及遠程控制。同時(shí)整條皮帶運輸線(xiàn)可實(shí)現逆煤流啟動(dòng)，順煤流停止功能，當去煤方向的皮帶出現保護停機時(shí)可實(shí)現來(lái)煤方向的所有皮帶閉鎖停機，有效防止了堆煤現象發(fā)生，提高了生產(chǎn)效率。本項目中為了實(shí)現12個(gè)控制箱的S7-1200CPU的閉鎖通信及數據交換，還選用了1臺S7-300系列的CPU 315-2PN/DP作為數據服務(wù)器，通過(guò)井下環(huán)形以太網(wǎng)與12臺S7-1200組成控制網(wǎng)絡(luò )；S7-300的PUT/GET指令為S7通信，組態(tài)為主動(dòng)連接，通信指令將每臺S7-1200 CPU的數據進(jìn)行處理分配
Networked secondary equipment: the conventional secondary equipment in the substation, such as relay protection device, measurement control device, error proof locking device, telecontrol device, fault recording device, voltage and reactive power control, synchronous operation device and developing online state detection device, are all designed and manufactured based on standardized and modular microprocessor, and the connection between equipment adopts high-speed network communication, The secondary equipment will no longer have the repeated I / O field interface of functional devices, and truly realize data sharing and resource sharing through the network. The conventional functional devices have become logical functional modules.
(3) Automatic operation management system: the substation operation management automation system shall include power production and operation data, status record statistics, paperless and automation; In case of fault in substation operation, it can provide fault analysis report in time, and point out the fault causes and treatment suggestions; The system can automatically send the substation equipment maintenance report, that is, the conventional substation equipment "regular maintenance" is changed to "condition based maintenance". Requirements of digital substation for industrial
