Mike Krzyzewski is really a famous coach of Dream Team. She has coached north america men's basketball team for some time, that's clinched numerous medals for his country. Following Londonfl jerseys supplyn Olympic was over, Krzyzewski told The Associated Press that this game will be his final one as national coach, a job he's held for seven years. He had left open the possibility of swomen nfl jerseystaying with the team beyond the London Games, when practice on Saturday said these will be his last Olympics.When asked if he was sure, Krzyzewski didn't hesitate before again saying, "yecheap nfl jerseys wholesales," this will be his last game "If we could win it, then it might be three major championships in a row, i always do not know when that has been done because we haven't usually won http://govoriotkrito.bg/libs/nflcn08.htmthe globe championships," Krzyzewski said. "It becomes an enormous thing for the program." Whatever, he's an awesome coach. His achievement are going to be remembered by the country.cheap nfl jerseys
<td id="gu7nx"><input id="gu7nx"></input></td>
<form id="gu7nx"><optgroup id="gu7nx"></optgroup></form>

    1. <style id="gu7nx"><kbd id="gu7nx"></kbd></style>
    熱門產(chǎn)品   Hot
    搜索   Search

    CRW1智能型萬能式斷路器

    更新:2013/10/30 8:48:19      點擊:
    • 產(chǎn)品品牌   
    • 產(chǎn)品型號   CRW1
    • 產(chǎn)品描述

      CRW1智能型萬能式斷路器,CRW1萬能斷路器是上海人民電氣有限公司 http://m.hqbet5695.com 為您提供的關(guān)于CRW1智能型萬能式斷路器、CRW1萬能斷路器型號,CRW1智能型萬...

    產(chǎn)品介紹

    CRW1萬能斷路器適用范圍

    CRW1系列智能型萬能式斷路器,適用于交流50Hz,額定電壓至690V, 額定電流400A~4000A的配電網(wǎng)絡(luò)中,用來分配電能和保護線路及電源設(shè)備免受過載,欠電壓, 短路,單相接地等故障的危害,斷路器具有智能化保護功能,故障判斷準確,選擇性好,靈敏度高,能提高供電可靠性,避免不必要的停電。同時也可帶有通訊接口,可實現(xiàn)遠距離遙控, 以滿足控制中心和自動化系統(tǒng)的要求。CRW1萬能斷路器具有隔離功能。

    產(chǎn)品符合GB14048.11IEC60947-1,IEC60947-2等標準。

    CRW1萬能斷路器型號含義

    CRW1萬能斷路器分類

    按安裝方式分:a)固定式    b )抽屜式 

    按操作方式:a ) 電動操作  b )手動操作(檢修、維護用)

    按極數(shù)分:a ) 三極  b )四極

    按脫扣器種類分:a ) 智能型過電流脫扣器 b )欠電壓瞬時(或延時)動作脫扣器句分勵脫扣器。

    按過電流脫扣器性能分:a ) 具有過載長延時反時限、短延時反時限、短延時定時限、瞬動功 能,可由用戶自行設(shè)定,組成所需要的保護特性;b )單相接地保護功能;c ) 顯示功能:整定電流ir顯示,動作電流顯示,整定時間、動作時間顯示;d ) 報警功能,過載報警。

    自檢功能:過熱保護,微機自診斷;f)試驗功能;g ) 負載監(jiān)控功能;h ) 熱模擬功能;i ) MCR功能;j ) 故障記憶功能;k ) 按保護特性和輔助功能,控制器分為L型、M型、H型。

    CRW1萬能斷路器工作條件

    周圍空氣溫度

    a )上限值不超過|40口; b )下限值不低于-51; c )24h的平均值不超過+35℃;

    注:(1)下限值為-10℃或-25℃時的工作條件時,在訂貨時用戶須向本公司申明;

        (2)上限值超過+40℃或下限值低于-25℃時的工作條件,用戶應(yīng)與本公司協(xié)商。

    海拔:安裝地點海拔不超過2000m。

    大氣條件:最高溫度為+40℃時,空氣相對濕度不超過50%,在較低溫度下可以允許有較高的相對濕度:例如20℃時達90%,對由于溫度變化偶爾產(chǎn)生的凝露,應(yīng)采取特殊的措施。

    污染等級:3級。

    安裝類別:斷路器主電路及欠壓脫扣器線圈、電源變壓器初級線圈的安裝類別為IV,其余輔助電路,控制電路安裝類別為III。

    安裝條件:斷路器應(yīng)按照本說明書的安裝要求安裝,斷路器的垂直傾斜度不超過5°。

     

    CRW1萬能斷路器主要技術(shù)參數(shù)

    斷路器的基本參數(shù)見表1

     

     

     

    殼架等級額定電流 lnm A

    額定電流   ln A

    額定電壓 Ue V

    額定極限短路分斷能力lcu kA

    額定運行短路分斷能力lcs kA

    額定短時耐受電流lcw kA(1s)

    飛弧距離  mm

    400V

    690V

    690V

    400V

    2000

    400,630,800,1000,1250, 1600,2000

    50Hz   400    690

    65/80

    40/50

    40/50

    30/40

    40/50

    0

    3200

    2000,2500, 2900,3200

    80/100

    50/65

    50/65

    40/50

    65

    4000*

    3200,3600, 4000

    80/100

    50/65

    50/65

    40/50

    65

    注:分子為標準型技術(shù)指標、分母為高分斷型技術(shù)指標。4000*A為3200A的增容型。

    斷路器在不同環(huán)境溫度下的降容系數(shù)見表2

                                               表2

    環(huán)境溫度

    +40℃

    +45℃

    +50℃

    +55℃

    +60℃

    允許持續(xù)  工作電流

    2000A

    1ln

    0.95ln

    0.9ln

    0.85ln

    0.8ln

    3200  4000A

    1ln

    0.92ln

    0.86ln

    0.80ln

    0.74ln

    更多產(chǎn)品
    亚洲色欲大片AAA无码,欧美精品一区三区在线观看,久久精品人人做人人爽不卡,国产日韩伦精无码一区二区
    <td id="gu7nx"><input id="gu7nx"></input></td>
    <form id="gu7nx"><optgroup id="gu7nx"></optgroup></form>

    1. <style id="gu7nx"><kbd id="gu7nx"></kbd></style>