047266-107現(xiàn)貨
產(chǎn)品廣泛應(yīng)用于【電力、水利】【冶金、能源】【石油、化工】【造紙印刷】【水處理/環(huán)?!俊酒囍圃臁俊臼姓こ獭康刃袠I(yè)。
我們所售備件均質(zhì)保一年,15天內(nèi)有問題包退換。
我們能夠解決您的缺損部分或疑難查找備件,并且愿與您共同維護工廠的正常生產(chǎn)!??!
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福州聚福興秉承“顧客至上,銳意進取”的經(jīng)營理念,
堅持“客戶”的原則為廣大客戶提供更加的服務(wù)。歡迎惠顧!
①也許您從未嘗試過給我們一個機會,給您一個大大的驚喜。
①也許您在乎的不僅僅是優(yōu)惠的價格,更是質(zhì)量的保障。
①也許您不曾知道,我們的價格低廉,質(zhì)量卻這般。
①你敢不敢丟下所有的質(zhì)疑,相信自己的選擇?
①我們的服務(wù),我們的價格,我們的質(zhì)量,我們的信用。
①就是無處不在的驚喜,讓你心跳
您的選擇,我們的服務(wù)
您的信賴,我們的品質(zhì)
您的滿意,我們的追求 您滿意的選擇
能力用電流有效值(kA)表示。
3)斷路器額定運行短路分斷能力應(yīng)大于線路中大短路電流。
4)斷路器的額定短時耐受電流(0.5s、3s)應(yīng)大于線路中短時持續(xù)短路電流。
10.5 低壓斷路器
當(dāng)分斷能力不夠,一般的線路,可用有填料式熔斷器(RT0)來替代低壓斷路器。對于特別重要的供電線路,應(yīng)采用更大容量的低壓斷路器
10.5 低壓斷路器
(6)斷路器欠電壓脫扣器額定電壓等于線路額定電壓。
(7)直流快速斷路器需考慮過電流脫扣器的動作方向(極性)、短路電流上升率。
(8)剩余電流保護斷路器需選擇合理的剩余電流動作電流和剩余電流不動作電流。注意能否斷開短路電流,如不能斷開短路電流則需要適當(dāng)?shù)娜蹟嗥髋浜鲜褂谩?br />
(9)滅磁斷路器選擇時需考慮發(fā)電機的強勵電壓、勵磁線圈的時間常數(shù)、放電電阻及斷開強勵電流的能力。
10.1.1 斷路器的作用
高壓斷路器在正常運行時用它接通或切斷負荷電流;
在電氣設(shè)備或線路發(fā)生短路故障或嚴重過負荷時,由繼電保護裝置控制其自動迅速地切斷故障電流,切斷發(fā)生短路故障的設(shè)備或線路,以防止擴大事故范圍。
10.1.2 斷路器的功能
斷路器開斷電路時,充分利用交流電弧電流每半周過零一次自然熄弧的特點,加強去游離使電弧不再復(fù)燃。其介質(zhì)強度恢復(fù)主要由斷路器滅弧裝置和介質(zhì)特性所決定。
系統(tǒng)電壓恢復(fù)過程可能是周期性的或非同期性的。取決于被開斷電路的參數(shù)。
72V AMETEK LOW WIND GENERATOR MOTOR
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047266-107
Eye Chart software, visual acuity software. NEW
DIGITAL ACUITY SOFTWARE with Patient Education Pic/Vids
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RVSI ACUITY CM400 CCTV CAMERA
Juno Systems RV123/RV123P Binocular Vision/Acuity Screener w Stand
Acuity CiMatrix CM4000 B/W CCD Camera, super miniture
ADEPT TECH 30332-22350 USPP 3033222350
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ADEPT TECH 90400-30013 USPP 9040030013
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047266-107
ALFA LAVAL SERVO DRIVE 31830-3350-1
ALFA LAVAL,2" 1X1 PLUG VALVE,STAINLES?S STEEL
Alfa Laval Think Top Replacement Control Top
45BY-3-02-SFY SPRINGER PARTS FOR ALFA LAVAL VALVES - BALL - OEM P/N 620377
ALFA LAVAL CPM-D-60-GC-?3 POL CONSTANT PRESSURE MODULATING INLET VALVE-NEW
882303760 CPM-I-D60 WITH MANUAL AND CONFORMITY CERT!!!
ALFA LAVAL FLOW SWITCH NSN 5930-01-448-26?32 NEW
ALFA LAVAL A3 PLUG VALVE 4"
TRI-CLOVER ALFA LAVAL BUTTERYFLY 3 WAY SHUTTER VALVES AIR OPERATED ETC
ALFA LAVAL SERVO DRIVE SS5
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41212 Old-Stock, Alfa Laval Seperation 98 01 B Liner, 7-11/16" ID, 21-9/16" OD
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ALFA LAVAL FILTERING DISK, FLUID PART # 1800-03365 NSN: 4330-14-479-43?89
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Alfa Laval Saunders Diaphragm Valve DN50 1.75" 34598 SS
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1.5 Inch Tri Clamp Diaphram Valve Alfa Laval Crane Saunders Stainless Steel 316L
1.5 In Valve Tri Clamp Alfa Laval Saunders Diaphram Stainless Steel 316L
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Alfa-Laval model NB26-34H brazed plate heat exchanger
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ALFA LAVAL SAUNDERS EC PISTON ACTUATOR
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Alfa Laval 10939820 Refrigerant Heat Exchanger
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047266-107