描述
變壓器故障的種類主要分為:變壓器短路故障、變壓器絕緣部位擊穿故障、變壓器過(guò)熱故障。變壓器故障的原因具體如下:
1、變壓器短路故障
變壓器在運(yùn)行中受到器件老化、震動(dòng)、環(huán)境劇變等方面的影響會(huì)在單項(xiàng)接地、兩相對(duì)地、兩相間、三相間會(huì)產(chǎn)生短路的事故,其中最嚴(yán)重的種類為出口處短路,這會(huì)嚴(yán)重影響變壓器的安全,處置不當(dāng)或不及時(shí)則會(huì)造成重大的電網(wǎng)安全事故。
2、變壓器絕緣部位擊穿故障
產(chǎn)生變壓器絕緣部位擊穿故障的主要原因來(lái)自于三個(gè)方面:受潮、異物、雷擊.當(dāng)變壓器套管、儲(chǔ)油柜、防爆筒內(nèi)有積水的時(shí)候,會(huì)降低變壓器絕緣體抗擊穿的強(qiáng)度,進(jìn)而產(chǎn)生局部短路;當(dāng)變壓器內(nèi)部殘留導(dǎo)電體、粉塵、雜質(zhì)等異物時(shí),會(huì)在正常的電壓下產(chǎn)生放電或磨損問(wèn)題,進(jìn)而將絕緣體擊穿;當(dāng)變壓器遭受雷電的突然襲擊,較大的電流會(huì)引起變壓器薄弱的絕緣部位產(chǎn)生擊穿,造成短路。
3、變壓器過(guò)熱故障
變壓器過(guò)熱一般是因異常電流而引起的,根據(jù)經(jīng)驗(yàn)渦流、環(huán)流、電阻增加、散熱受阻等原因都會(huì)產(chǎn)生變壓器過(guò)熱,如果過(guò)熱不能有效處理將會(huì)影響變壓器正常的工作和性能,持續(xù)發(fā)展會(huì)產(chǎn)生電力網(wǎng)絡(luò)安全問(wèn)題,并伴有變壓器火災(zāi)的發(fā)生。
廣泛應(yīng)用于數(shù)控機(jī)械?冶金、石油天然氣、石油化工、化工、造紙印刷、紡織印染、機(jī)械、電子制造、汽車(chē)制造、煙草、塑膠機(jī)械、電力、水利、水處理/環(huán)保、市政工程、鍋爐供暖、能源、輸配電。
歐美品牌停產(chǎn)的“DCS系統(tǒng)備品備件
歐美品牌常用的“DCS系統(tǒng)備品備件
歐美品牌停產(chǎn)的,常用的“PLC”備品備件
我司產(chǎn)品應(yīng)用于以下領(lǐng)域:
1,《發(fā)電廠DCS監(jiān)控系統(tǒng)》
2,《智能平鋼化爐系統(tǒng)制造》
3,《PLC可編程輸送控制系統(tǒng)》
4,《DCS集散控制系統(tǒng)》
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5,《智能型消防供水控制系統(tǒng)》
6,《化工廠藥液恒流量計(jì)算機(jī)控制系統(tǒng)》
7,《電氣控制系統(tǒng)》造紙,印染生產(chǎn)線,變電站綜合自動(dòng)化控制系列
本特利,英維思,伍德沃德,??怂共_、西屋、瑞恩、施耐德莫迪康、ABB、AB、西門(mén)子、摩托羅拉、GE發(fā)那科、安川、博世力士樂(lè),ACSO,力士樂(lè)等各大品牌的DCS系統(tǒng)配件,機(jī)器人系統(tǒng)配件,大型伺服系統(tǒng)備件。
IBM HS22 Intel Xeon E5506 2.13GHZ CPU Kit 43W5987
HP Proliant DL360 G5 Server Dual 5110 1.60GHZ 4GB RAM
IBM HS22 Intel Xeon X5560 2.80GHZ CPU Kit 44T1886
HP Proliant DL140 G3 1 X Dual Core Xeon 5160 2.66GHZ
IBM HS22 Intel Xeon X5550 2.66GHZ CPU Kit 44T1885
HP Proliant DL140 G3 1 X Dual Core Xeon 5160 3.0GHZ
HP Compaq NETRAID 3 SI PCI Array Card D5955
IBM Heatsink For Bladecenter HS22
HP Proliant DL385 G2 AMD 2210 HE 1.86GHz 1GB RAM
HP Proliant DL140 G3 1 X Dual Core Xeon 5160 3.0GHz
Dell PowerEdge R410 Dual Xeon E5630 48GB RAM 4 X 1TB
HP Z600 Workstation Xeon E5520 2.26GHZ 4GB RAM 1 X 1TB
Dell PowerEdge R710 Server 1 X QC E5620 2.4GHZ 4GB RAM
Dell T710 Intel Xeon X5660 2.80GHZ CPU Kit T710 X5660
HP Proliant DL140 G3 1 X Dual Core Xeon 5160 3.0GHZ
HP Z800 Workstation Xeon E5504 2.0GHZ 4GB RAM 1 X 1TB
Dell M1000e 2 x M710 Dual Xeon X5670 32GB RAM 2 x 300GB
Dell M1000e 2 x M710 Dual Xeon X5670 64GB RAM 2 x 300GB
HP Proliant DL380 G6 Server 1 X QC E5620 2.4GHZ 8GB RAM
Dell M1000e 2 x M710 Dual Xeon X5670 96GB RAM 2 x 300GB
Dell PowerEdge R410 Xeon E5506 2.13GHZ 4GB 1X300GB
Dell PowerEdge R410 Xeon E5506 2.13GHZ 4GB 1X300GB
HP Z600 Workstation Xeon E5620 2.4GHZ 4GB RAM 1 X 1TB
Dell M1000e 2 x M710 Dual Xeon X5670 144GB RAM 2x300GB
Dell PowerVault MD1120 SAS / SATA Storage DUAL CNTRLS
HP Proliant DL380 G6 Server 1 X QC E5620 2.4GHZ 8GB RAM
HP Z600 Workstation Xeon E5620 2.4GHZ 4GB RAM 1 X 1TB
HP Z600 Workstation Xeon E5620 2.4GHZ 4GB RAM 1 X 1TB
HP Proliant DL380 G6 Server 1 X QC E5620 2.4GHZ 8GB RAM
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Dell PowerVault MD3200i 12x450GB 15K Dual Controller
Dell PowerVault MD3200i 12x600GB 15K Dual Controller
Dell PowerVault MD3200i 12x600GB 15K Single Controller
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IBM HS22V Intel Xeon E5640 2.66GHZ CPU Kit 69Y0925
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Intel Xeon Quad Core Processor X5667 3.06GHZ SLBVA
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IBM HS22V Intel Xeon X5570 2.93GHZ CPU Kit 49Y5172
IBM HS22V Intel Xeon E5506 2.13GHZ CPU Kit 49Y5151
IBM Heatsink For Bladecenter HS22V 46C7382
Intel Xeon Quad Core Processor E5345 2.33GHZ SLAEJ
HP 2GB PC2-5300 2X1GB DDR2 Memory Kit 397411-B21
HP 2GB PC2-5300 2X2GB DDR2 Memory Kit 397413-B21
Dell T410 Intel Xeon X5667 3.06GHZ CPU Kit T410 X5667
Dell R610 Intel Xeon X5667 3.06GHZ CPU Kit R610 X5667
Dell T710 Intel Xeon X5667 3.06GHZ CPU Kit T710 X5667
HP DL140 G3 Intel Xeon X5365 3.0GHZ CPU Kit 452997-B21
Dell PowerEdge 1950 Intel Xeon X5460 3.16GHZ CPU Kit
HP BL460C Intel Xeon E5345 2.33GHZ CPU Kit 435564-B21
IBM HS21 XM Intel Xeon E5345 2.33GHZ CPU Kit 42C0581
Dell R410 Intel Xeon X5560 2.80GHZ CPU Kit R410 X5560
HP DL380 G6 Intel Xeon E5502 1.86GHZ CPU Kit 500085-B21
IBM HS21 XM INTEL XEON L5320 1.86GHZ CPU KIT 43W3923
Dell M610 Intel Xeon E5504 2.0GHZ CPU Kit M610 E5504
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HP DL360 G6 Intel Xeon E5502 1.86GHZ CPU Kit 507663-B21
IBM X3650 M2 Intel Xeon L5506 2.13GHZ CPU Kit 46M1082