57C494 【现货】18005006671 -行业资讯

57C494
57C494

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★联系人：李莫愁
★联系电话：0591-83562354 * 18005006671
★联系QQ：2851617308
★公司传真：0591-83489960
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◆工控产品芯片封装的内部连接
◆工控产品封装引脚与PCB的连接。典型连接器IC插座。
◆印制电路与导线或印制板的连接。典型连接器为印制电路连接器。
◆底板与底板的连接。典型连接器为机柜式连接器。
◆设备与设备之间的连接。典型产品为圆形连接器。
◆接触电阻高质量的电连接器应当具有低而稳定的接触电阻。连接器的接触电阻从几毫欧到数十毫欧不等。
◆绝缘电阻衡量电连接器接触件之间和接触件与外壳之间绝缘性能的指标，其数量级为数百兆欧至数千兆欧不等。
◆抗电强度或称耐电压、介质耐压，是表征连接器接触件之间或接触件与外壳之间耐受额定试验电压的能力。

组合式电流电压互感器。组合式互感器由电流互感器和电压互感器组合而成，多安装于高压计量箱、柜，用作计量电能或用作用电设备继电保护装置的电源。组合式电流电压互感器是将两台或三台电流互感器的一次、二次绕组及铁心和电压互感器的一、二次绕组及铁心，固定在钢体构架上，浸入装有变压器油的箱体内，其一、二次绕组出线均引出，接在箱体外的高、低压瓷瓶上，形成绝缘、封闭的整体。一次侧与供电线路连接，二次侧与计量装置或继电保护装置连接。根据不同的需要，组合式电流电压互感器分为V/V接线和Y/Y接线两种，以计量三相负荷平衡或不平衡时的电能。
电力系统为了传输电能，往往采用交流电压、大电流回路把电力送往用户，无法用仪表进行直接测量。互感器的作用，就是将交流电压和大电流按比例降到可以用仪表直接测量的数值，便于仪表直接测量，同时为继电保护和自动装置提供电源。电力系统用互感器是将电网高电压、大电流的信息传递到低电压、小电流二次侧的计量、测量仪表及继电保护、自动装置的一种特殊变压器，是一次系统和二次系统的联络元件，其一次绕组接入电网，二次绕组分别与测量仪表、保护装置等互相连接。互感器与测量仪表和计量装置配合，可以测量一次系统的电压、电流和电能；与继电保护和自动装置配合，可以构成对电网各种故障的电气保护和自动控制。互感器性能的好坏，直接影响到电力系统测量、计量的准确性和继电器保护装置动作的可靠性。
★联系QQ：2851617308
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3BSE030221R1 ABB Advant 800xA DP-V1 Interface Module (3BSE030221R1)
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3BSE035380R1 ABB Advant 800xA Digital Input Module (3BSE035380R1)
3BSE038415R1 ABB Advant 800xA AO810V2 Analog Output Module (3BSE038415R1)
3BSE040662R1 ABB Advant 800xA Analog Input Module - RTD (3BSE040662R1)
3BSE041882R1 ABB Advant 800xA Profibus Communication Interface - Redundant (3BSE041882R1)
3BSE045584R1 ABB Advant 800xA Redundant Analog Output Module (3BSE045584R1)
3BSE046966R1 ABB Advant 800xA TU839 Extended Module Termination Unit (3BSE046966R1)
3BUR001454R1 ABB Advant 800xA DI814 Digital Input Module (3BUR001454R1)
3BUR001455R1 ABB Advant 800xA DO814 Digital Output Module (3BUR001455R1)
490176065 ABB Advant 800xA Teminal Block (490176065)
490176097 ABB Advant 800xA Analog Input (490176097)
492933501 ABB Advant 800xA Digital Input (492933501)
492933701 ABB Advant 800xA Digital Output (492933701)
492933801 ABB Advant 800xA Analog Current Input (492933801)
492953101 ABB Advant 800xA Analog Input Module (492953101)
492953401 ABB Advant 800xA Digital Input Module (492953401)
492953501 ABB Advant 800xA Digital Output Module (492953501)
492960133 ABB Advant 800xA Digital Input (492960133)
AI210 ABB Advant 800xA Analog Input Module (AI210)
AI801 ABB Advant 800xA Analog Input Module (AI801)
AI810 ABB Advant 800xA Analog Input Module (AI810)
AI815 ABB Advant 800xA Analog Input Module (AI815) Alt# 3BSE052604R1
AI820 ABB Advant 800xA Analog Input Module (AI820)
AI830 ABB Advant 800xA Analog Input Module - RTD (AI830)
AI830A ABB Advant 800xA Analog Input Module - RTD (AI830A)
AI835 ABB Advant 800xA Analog Input Module (AI835)
AI845 ABB Advant 800xA Analog Input Module (AI845)
AI890 ABB Advant 800xA Analog Input w/Intrinsic Safety Interface (AI890) Alt# 3BSC690071R1
AI895 ABB Advant 800xA Analog Input Module (AI895) Alt# 3BSC690086R1
AM 811F ABB Advant 800xA AM811F Battery Module (AM 811F)
AO801 ABB Advant 800xA Analog Output Module (AO801)
AO810 ABB Advant 800xA Analog Output Module (AO810)
AO810V2 ABB Advant 800xA Analog Output Module (AO810V2)
AO815 ABB Advant 800xA Analog Output Module (AO815) Alt# 3BSE052605R1
AO820 ABB Advant 800xA AO820 Analog Output (AO820)
AO845 ABB Advant 800xA Redundant Analog Output Module (AO845)
AO84* ABB Advant 800xA Redundant Analog Output Module (AO84*)
AO890 ABB Advant 800xA Analog Output Module(AO890) Alt# 3BSC690072R1
AO895 ABB Advant 800xA Analog Output Module (AO895)
CI810A ABB Advant 800xA AF100 Field Communcation Interface (CI810A)
CI810V1 ABB Advant 800xA AF100 Field Communcation Interface (CI810V1)
CI810V2 ABB Advant 800xA AF100 Field Communcation Interface (CI810V2)
CI820 ABB Advant 800xA S800 Redundant FCI (CI820)
CI820-1 ABB Advant 800xA CI820 Internal Module (CI820-1)
CI820V1 ABB Advant 800xA Redundant FCI (CI820V1)
CI830 ABB Advant 800xA ABB Profibus DP Communications Interface (CI830)
CI840 ABB Advant 800xA Redundant Profibus Communications Interface (CI840)
CI840A ABB Advant 800xA Profibus Communication Interface - Redundant (CI840A) Alt# 3BSE041882R1
CI851K01 ABB Advant 800xA Profibus DP Interface Module Kit (CI851K01) Alt# 3BSE018101R1
CI853K01 ABB Advant 800xA Dual RS232-C Interface (CI853K01) Alt# 3BSE018103R1
CI854 ABB Advant 800xA Interface Module (CI854)
CI854A ABB Advant 800xA DP-V1 Interface Module (CI854A)
CI854AK01 ABB Advant 800xA Profibus DP-VI Communication Module Kit (CI854AK01) Alt# 3BSE030220R1
CI855K01 ABB Advant 800xA Dual Ethernet Port Interface (CI855K01) Alt# 3BSE018106R1
CI860K01 ABB Advant 800xA Communication Interface Module (CI860K01) Alt# 3BSE032444R1
DFM02 ABB Advant 800xA Serial Fieldbus Module (DFM02)
DI210 ABB Advant 800xA Digital Input Module (DI210)
DI801 ABB Advant 800xA S800 Digital Input Module (DI801)
DI810 ABB Advant 800xA Digital Input Module (DI810) Alt# 3BSE008508R1
DI814 ABB Advant 800xA Digital Input Module (DI814)
DI820 ABB Advant 800xA Digital Input (DI820) Alt# 3BSE008512R1
DI821 ABB Advant 800xA Digital Input (DI821)
DI821Z ABB Advant 800xA Digital Input Module (DI821Z)
DI830 ABB Advant 800xA Digital Input SOE Module (DI830)
DI890 ABB Advant 800xA Digital Input w/ Intrinsic Safety Interface (DI890)
DO210 ABB Advant 800xA Digital Output Module (DO210)
DO801 ABB Advant 800xA S800L DO801 Digital Output (DO801)
DO802 ABB Advant 800xA S800L DO802 Digital Output Relay (DO802)
DO810 ABB Advant 800xA Digital Output Module (DO810) Alt# 3BSE008510R1
DO814 ABB Advant 800xA Digital Output Module (DO814)
DO820 ABB Advant 800xA Digital Output Relay Module (DO820) Alt# 3BSE008514R1
DO890 ABB Advant 800xA Digital Output w/ Intrinsic Safety Interface (DO890)
DP820 ABB Advant 800xA Pulse Counter (DP820)
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ABB Advant 800xA Fieldbus Module, Profibus DP (FI830F)
FI840F ABB Advant 800xA Fieldbus Module, FFHSE (FI840F)

资讯来源：57C494