2711-T10G3/C

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描述

2711-T10G3/C

根據(jù)儀器儀表應(yīng)用的工程實(shí)踐,儀器儀表受雷擊可大致分為直擊雷、感應(yīng)雷和傳導(dǎo)雷。但不論以哪一種形式到達(dá)設(shè)備都可歸納為從以下4個(gè)部位侵入的雷電浪涌,在此把這些部位稱為防雷端口,并以儀器儀表舉例說(shuō)明。在控制系統(tǒng)中,為了實(shí)現(xiàn)信號(hào)或信息的傳遞總要有與外界連接的部位,如過(guò)程控制系統(tǒng)的信號(hào)交接端的總配線架、數(shù)據(jù)傳輸網(wǎng)的終端、微波設(shè)備到天線的饋線口等等,那么這些從外界接收信號(hào)或發(fā)射信號(hào)出去的接口都有可能受到雷電浪涌沖擊。因?yàn)閺臉峭庑盘?hào)端口進(jìn)來(lái)的浪涌往往通過(guò)長(zhǎng)電纜,所以采用10/700μs波形,標(biāo)準(zhǔn)規(guī)定線到線間浪涌電壓為0.5kV,線到地間浪涌電壓為1kV。而樓內(nèi)儀器儀表之間傳遞信號(hào)的端口受到浪涌沖擊相當(dāng)于電源線上的浪涌沖擊,采用1.2/50(8/20)μs組合波,線到線、線到地浪涌電壓限值不變。一旦超過(guò)限值,信號(hào)端口和端口后的設(shè)備有可能遭受損壞。盡管在標(biāo)準(zhǔn)中沒有專門提到接地端口的指標(biāo),實(shí)際上信息技術(shù)設(shè)備地端口是非常重要的。在雷電發(fā)生時(shí)接地端口有可能受到地電位反擊、地電位升高影響,或者由于接地不良、接地不當(dāng)使地阻過(guò)大達(dá)不到參考電位要求使設(shè)備損壞。接地端口不僅對(duì)接地電阻/接地線極(長(zhǎng)度、直徑、材料)、接地方式、地網(wǎng)的設(shè)置等有要求,而且還與設(shè)備的電特性、工作頻段、工作環(huán)境等有直接的關(guān)系。同時(shí)從接地端還有可能反擊到直流電源端口損壞直流工作電壓的設(shè)備。綜上所述,信息技術(shù)設(shè)備的防雷可以考慮從四個(gè)關(guān)鍵的端口入手

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主營(yíng)DCS系統(tǒng)配件
機(jī)器人系統(tǒng)配件
大型伺服系統(tǒng)配件
品牌:ABB???,AB??,GE,FOXBORO,本特利,英維思,伍德沃德,西屋,瑞恩,施耐德,西門子,摩托羅拉,安川。力士樂(lè)。ACSO,橫河等進(jìn)口品牌。 專業(yè)銷售進(jìn)口DCS? PLC系統(tǒng)備件模塊
Triconex?Siemens?Yaskawa?ABB?GE?Ovation?AB?Foxboro?Motorola?Schneider?XYCOM?KUKA
? 專業(yè)銷售進(jìn)口DCS? PLC系統(tǒng)備件模塊 15天包退換 一年質(zhì)保 大量現(xiàn)貨? 國(guó)內(nèi)實(shí)力庫(kù)存商家

Tektronix SD-22 SD22 Sampling Head 12.5GHz

Tektronix SD-20 SD20 Loopthrough Sampling Head

Agilent HP 11612A Bias Network 45MHz – 26GHz

Agilent 16191A Side Electrode SMD Test Fixture COMPLETE

Agilent HP 11664D 26.5 – 40 GHz Scalar Coaxial Detector

Agilent / HP 4140B pA Meter / DC Voltage Source

Tektronix 3056 Real Time DC to 3 GHz Spectrum Analyzer

Agilent HP 85021B Directional Bridge10MHz to 26.5GHz

Agilent HP 85033D opt. 100 Calibration Kit, 3.5 mm

Fluke 5450A Resistance Calibrator with warranty

Racal-Dana 1992 Timer / Counter 1.3 GHz w/ warranty

Fluke / Philips PM6669 Timer / Counter 120MHz / 1.3 GHz

Rohde & Schwarz FSEM30 Spectrum Analyzer 26.5 GHz R&S

Tektronix TDS784D Digital Oscilloscope 1GHz 4GS/s 4CHs

HP Agilent 8447A Dual Channel Amplifier, Option 001

Hewlett Packard Agilent 8447A Amplifier, 100 kHz to 400

hewlett Packard Agilent 462A Pulse Amplifier 20 & 40db

ENI 601L RF Power Amplifier 0.8 to 1000 MHz, 1.2 W

Agilent / HP 11636B Power Divider, DC to 26.5 GHz

Gigatronics 8541B Power Meter with Warranty

Agilent / HP 85039A Type F Calibration Kit 75 Ohm

Agilent / HP E4420B Signal Generator 250 kHz – 2 GHz

Agilent 83732B Synthesized Signal Generator .01 – 20GHz

Keithley 775 Programmable Counter / Timer

Agilent HP 85050A 7mm Calibration Kit

Anristu 2000-768 Precision OSL Calibration Kit DC-8GHz

Anristu 2000-767 Precision OSL Calibration Kit DC-8GHz

Agilent / HP 70100A Power Meter Module with Warranty

Two Narda 378NM Type N Coaxial Fixed Termination 18GHz

Gigatronics 80701A Power Sensor 0.05-18GHz

HP 909A Coaxial Termination DC to 18 GHz Type N female

Agilent HP 16092A Spring Clip Fixture

HP 8470B Low-Barrier Schottky Diode Detector 10M-18GHz

Wiltron Anritsu 560-7S50 RF Detector w/ opt. 02

Agilent N1300A 002 CMU Cable 3m for Agilent B1500A

SRS SR510 Lock-In Amplifier with Warranty

Agilent / HP 214B Pulse Generator .3 – 100 V, .1-10 MHz

SRS SR570 Low-Noise Current Preamplifier w/ Warranty

Agilent HP 8447A Preamplifier 0.1 to 400 MHz

Agilent / HP 83522A RF Plug In 0.01-2.4 GHz w/warranty

Agilent HP 6226B DC Power Supply 0-50V, 0 – 1.5A

Systron Donner 6246A 26GHz Microwave Frequency Counter

Agilent / HP 83545A RF Plug In 5.9-12.4 GHz w/warranty

Agilent 83492A Optical clock recovery module w/Warranty

Lambda / TDK GEN40-19 DC Power Supply 40V 19A 760W

Fluke / Philips PM6665 Timer / Counter 160MHz / 1.3 GHz

Agilent / HP 3311A Function Generator 1 MHz w/ warranty

Agilent / HP 83480A Digital Communications Analyzer

Agilent N1254A opt 100 GNDU to Kelvin Adaptor

Agilent HP 8472A Crystal Detectors 10MHz – 18GHz

Agilent E4418B EPM Series Single-Channel Power Meter

Agilent / HP 86060C Lightwave Switch with Warranty

Agilent / HP 0950-3246 – 4396B 4294A Power Supply Board

Agilent 83485B 30GHz optical / 40 GHz electrical module

Agilent / HP 8757A Scalar Network Analyzer w/Warranty

Anritsu MS2711D Spectrum Analyzer 3 GHz with warranty

Tektronix TLS216 Logic Analyzer 16 CHz 2 GS/s w/probes

LeCroy LT344 WaveRunner 500 MHz Oscilloscope 4 Channels

Agilent E4407B Spectrum Analyzer 26.5GHz w/ Warranty

Agilent E6651A Mobile WiMAX Test Set w/ 503 & Warranty

Symmetricom / HP 58538A Lightning Arrestor DC-2.5 GHz

Agilent / HP 33340C Attenuator, DC – 26.5 GHz, 20 dB

Agilent / HP 8133A Pulse Generator 15 MHz – 3.35 GHz

Anritsu MP1777A 10 GHz Jitter Analyzer w/ Warranty

Agilent / HP E4970-66501 – 4396B, 4395A A1 CPU Board

Agilent / HP E4970-66550 – 4396B DC-DC Converter Board

Tektronix TDS7404B Oscilloscope 4GHz 4 Ch 20GSa/s

Agilent HP 70001A MMS System Mainframe (4 available)

Agilent HP 41901A SMD PI-Network test Fixure

Agilent 70842B 3 Gb/s Error Detector Module w/ warranty

Agilent HP 70904A RF Section 100 Hz – 2.9 GHz Warranty

Agilent HP 70810B Lightwave Section, 100 kHz to 22 GHz

Agilent HP 70912B 10 to 2000 mHz Downconverter Module

Agilent / HP 8594E Spectrum Analyzer w/ Warranty

Agilent / HP 54832D 1 GHz Infiniium Oscilloscope

Agilent 81651A Laser Source 1550 nnm with Warranty

Agilent 81662A DFB Source w/ option 361 & Warranty

Agilent 83493A Optical clock recovery module w/Warranty

Advantest R3263 Spectrum Analyzer with Warranty 3GHz

HP/Agilent 11590A RF & DC Bias Network 1G-12.4GHz /01

Anritsu MA2422A Thermal Sensor 10MHz-18GHz, 50 ohm

HP / Agilent 779D Directional Coupler 1.7-12.4GHz

HP / Agilent 8482H Power Sensor 30uW-3W, 50 ohm

NARDA 2358-6, Directional Coupler 5.4-11 GHZ, 6 DB

HP / Agilent 355C VHF Attenuator

Agilent / HP 71500A Microwave Transition Analyzer 40GHz

Racal 1260-12 Relay Actuator Module with Warranty

Agilent/HP E1750A VXI Broadband Distribution Amplifier

Agilent / HP 8752C RF Network Analyzer 3 GHz w/Warranty

Anritsu MP1764A w/ Opt 01 Error Detector w/ Warranty

Agilent / HP E5252A 10 X 12 Switch Matrix Card

HP 3708A Noise & Interference Test Set with Warranty

Agilent / HP 8349B Microwave Amplifier, 2 to 20 GHz

Agilent E4406A VSA Transmitter Tester, 7MHz – 4GHz BAE

Agilent 11980A Fiber-Optic Interferometer w/Opt. 005

Agilent / HP 6634A Front Panel Assembly 06634-60003

Narda 5292 Broadband High Directivity Coupler

Anritsu MP1763C w/ Opt 01, 03 Pulse Pattern Generator

Tektronix TDS460A Oscilloscope 400MHz 100MS/s 4 Chs

Agilent / HP 54118A Trigger 500 MHz – 18GHz

Agilent / HP 83540A RF Plug In 2 – 8.4 GHz

Agilent / HP 70902A IF Section 10 Hz to 300 kHz Module

Agilent 70310A Precision Frequency Reference Module

Agilent / HP 4396B RF Network / Spectrum Analyzer

Tektronix TDS520C Digitizing Oscilloscope 500MHz,1GS/s

Agilent / HP 1670D Benchtop Logic Analyzer w/ Deep Mem.

Agilent 4142B Modular DC Source / Monitor Mainframe

專業(yè)銷售進(jìn)口DCS? PLC系統(tǒng)備件模塊

PLC模塊,可編程控制器,CPU模塊,IO模塊,AI模塊,通訊模塊。AB/施耐德/ABB/GE/本特利/西屋/英維斯/霍尼韋爾/黑馬/FU克斯波羅

15天包退換 一年質(zhì)保 大量現(xiàn)貨? 國(guó)內(nèi)實(shí)力庫(kù)存商家


選擇深圳長(zhǎng)欣,選擇放心,售后無(wú)憂大量現(xiàn)貨,當(dāng)天順豐發(fā)貨!
主營(yíng):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。

先介紹幾點(diǎn)經(jīng)驗(yàn)。
1、先通讀一遍“系統(tǒng)手冊(cè)”(不管能不能看懂,先了解個(gè)大概,以便學(xué)習(xí)編程時(shí)查找);
2、由位控邏輯入手,逐漸增加定時(shí)、計(jì)數(shù)等條件,把或、與、非關(guān)系理順;
3、進(jìn)而練習(xí)整數(shù)運(yùn)算、實(shí)數(shù)運(yùn)算、類型轉(zhuǎn)換;
4、量程轉(zhuǎn)換、PID調(diào)節(jié)回路的建立及P、I、D參數(shù)的理解(最好是有個(gè)物理回路驗(yàn)證,比如變頻器+電機(jī)+測(cè)速傳感器);
5、循環(huán)、順序、跳轉(zhuǎn)等程序控制(盡量避免跳轉(zhuǎn),非跳不可時(shí)也是跳的越近越好);
6、中斷、通訊、位置控制....

本人以ABB工業(yè)機(jī)器人配件DSQC系列和Motorola MVME系列,GE 卡件 模塊 驅(qū)動(dòng)器系列為主攻。各位電工朋友可根據(jù)自己的條件選擇適合自己的PLC品牌,由于PLC的基本框架大同小異,學(xué)會(huì)一種至于其它的學(xué)習(xí)起來(lái)也就簡(jiǎn)單了。