5X00226G02隔離模塊,5X00226G02使用配置教程
主煤流運(yùn)輸集控子系統(tǒng)，變頻、軟起部分和皮帶保護(hù)系統(tǒng)通過電控系統(tǒng)PLC配置的Modbus模塊接入各個(gè)皮帶控制子系統(tǒng)，各皮帶控制配置工業(yè)以太網(wǎng)接口模塊，膠帶機(jī)集中控制系統(tǒng)控制中心設(shè)在主井井口房，通過主井井口房的上位機(jī)直接接入地面工業(yè)以太環(huán)網(wǎng)；數(shù)據(jù)通過標(biāo)準(zhǔn)的TCP/IP數(shù)據(jù)協(xié)議傳輸?shù)秸{(diào)度中心集控室，以O(shè)PC方式實(shí)現(xiàn)與調(diào)度中心通信，實(shí)現(xiàn)集中控制礦用隔爆型真空饋電開關(guān)(以下簡(jiǎn)稱饋電開關(guān))主要用于煤礦井下，在交流50Hz、電壓至1140V，額定電流分別為400A、500A、630A、800A的線路中
5X00226G02隔離模塊，作為供電系統(tǒng)的總開關(guān)、分支開關(guān)，或作為礦用隔爆型移動(dòng)變電站用饋電開關(guān)（打開后蓋板與移動(dòng)變電站對(duì)接），也可作為大容量電動(dòng)機(jī)不頻繁起動(dòng)之用。具有過載、短路、欠壓、漏電保護(hù)(選擇性漏電保護(hù))及漏電閉鎖等功能。產(chǎn)品可應(yīng)用在礦用隔爆型真空饋電開關(guān)等煤礦安全用電監(jiān)測(cè)系統(tǒng)中。該系統(tǒng)由一套UniMAT PLC 文本屏構(gòu)成的控制系統(tǒng)和真空斷路器構(gòu)成的執(zhí)行系統(tǒng)構(gòu)成。如圖所示。其中CPU進(jìn)行一些邏輯控制，礦用模塊主要是采集AC電壓、電流和漏電電阻等信號(hào)，從而實(shí)現(xiàn)系統(tǒng)監(jiān)測(cè)監(jiān)控并完成漏電閉鎖、過載、短路、斷相、欠壓和過壓等保護(hù)功能，具有智能化程度高、性能穩(wěn)定、動(dòng)作可靠等優(yōu)點(diǎn)。系統(tǒng)主要是要保證漏電保護(hù)動(dòng)作時(shí)間小于50ms和短路保護(hù)動(dòng)作的時(shí)間小于100ms，所以要保證CPU的采集處理運(yùn)行速度很快，UniMAT PLC采用高頻微處理器，指令處理速度比普通PLC提升3-10倍，采用UniMAT UN200 PLC的采集與控制周期時(shí)間是12ms,加上外圍的設(shè)備時(shí)間30ms,共42ms，達(dá)到了設(shè)備的標(biāo)準(zhǔn)要求。采用文本顯示屏，配合UniMAT UN200系列小型PLC，實(shí)現(xiàn)對(duì)饋電開關(guān)的工作狀態(tài)、參數(shù)和故障類型顯示和記憶，并可對(duì)具體參數(shù)進(jìn)行修改調(diào)整，友好的用戶界面，具有良好的人機(jī)對(duì)話功能，可大大提高判斷故障和排除故障的效率。
所有模擬信號(hào)全部處理為數(shù)字信號(hào)，具有抗干擾能力強(qiáng)、接線簡(jiǎn)潔、信息量大、控制可靠準(zhǔn)確等特點(diǎn)。
具有完備的自檢、自診斷和故障模擬實(shí)驗(yàn)功能，可方便地檢查保護(hù)和控制系統(tǒng)正常與否。該饋電開關(guān)充分考慮煤礦井下的工作環(huán)境，集機(jī)械制造、自動(dòng)化、測(cè)控技術(shù)與儀器儀表、計(jì)算機(jī)應(yīng)用科學(xué)技術(shù)等學(xué)科于一身
As the key equipment of digital substation communication network, ingem Industrial Ethernet switch has strict requirements in iec61850-3, so that it can be applied stably, reliably and safely in various harsh industrial environments for a long time, and escort the digital substation. The communication network of digital substation must meet the special requirements of real-time, reliability, security and expansibility. Optical fiber communication has become an ideal communication mode in digital substation because of its wide bandwidth, high reliability, strong confidentiality, good anti-interference ability and long transmission distance. Characteristics of digital substation automation system:
(1) Intelligent primary equipment: the detected signal circuit and controlled operation driving circuit of primary equipment are designed by microprocessor and photoelectric technology. The conventional relay and its logic circuit in the secondary circuit of substation are replaced by programmable controller, and the conventional strong current analog signal and control cable are replaced by photoelectric digital and optical fiber.
