韩国三级BD高清中字,少妇厨房愉情理伦bd在线观看,无码一区二区三区在线观看,粗了大了 整进去好爽视频

您好!歡迎訪問揚(yáng)州海弘機(jī)電設(shè)備有限公司網(wǎng)站!
始于2011年,專注發(fā)電機(jī)、柴油發(fā)電機(jī)組生產(chǎn)以質(zhì)量求生存,以科技求發(fā)展
全國(guó)咨詢熱線:0514-86829289
聯(lián)系我們

【 微信掃碼咨詢 】

0514-86829289

18901444789

柴油發(fā)電機(jī)組轉(zhuǎn)速測(cè)量保護(hù)系統(tǒng)工作原理是什么? What is the working principle of the speed measurement and protection system for diesel generator sets?

作者:admin 瀏覽量:30 來源:本站 時(shí)間:2024-10-10 14:39:28

信息摘要:

柴油發(fā)電機(jī)組轉(zhuǎn)速測(cè)量保護(hù)系統(tǒng)的工作原理:轉(zhuǎn)速是柴油發(fā)電機(jī)設(shè)備中最基本、最重要的參數(shù)之一,起動(dòng)時(shí)的點(diǎn)火轉(zhuǎn)速、運(yùn)行中的轉(zhuǎn)速調(diào)整、超速時(shí)的停車保護(hù)、甚至負(fù)荷的大小也能從轉(zhuǎn)速的大小上得到體現(xiàn),因此轉(zhuǎn)速測(cè)定是柴油發(fā)電機(jī)監(jiān)控保護(hù)的基礎(chǔ)。一般柴油機(jī)中轉(zhuǎn)速的測(cè)量有二處,一是主機(jī)轉(zhuǎn)速的測(cè)量,二是渦輪增壓器轉(zhuǎn)速的

 柴油發(fā)電機(jī)組轉(zhuǎn)速測(cè)量保護(hù)系統(tǒng)的工作原理:

  轉(zhuǎn)速是柴油發(fā)電機(jī)設(shè)備中最基本、最重要的參數(shù)之一,起動(dòng)時(shí)的點(diǎn)火轉(zhuǎn)速、運(yùn)行中的轉(zhuǎn)速調(diào)整、超速時(shí)的停車保護(hù)、甚至負(fù)荷的大小也能從轉(zhuǎn)速的大小上得到體現(xiàn),因此轉(zhuǎn)速測(cè)定是柴油發(fā)電機(jī)監(jiān)控保護(hù)的基礎(chǔ)。一般柴油機(jī)中轉(zhuǎn)速的測(cè)量有二處,一是主機(jī)轉(zhuǎn)速的測(cè)量,二是渦輪增壓器轉(zhuǎn)速的測(cè)量。

 ?。?/span>1) 傳感器。傳感器是一個(gè)近程感應(yīng)開關(guān),不通過接觸就可以工作。它由振蕩器、觸發(fā)器及放大器組成,通過振蕩器電路線圈產(chǎn)生一交變電磁場(chǎng)。在金屬導(dǎo)體接近傳感器時(shí)交變磁場(chǎng)就會(huì)發(fā)生變化,振蕩器的輸出電壓隨之發(fā)生變化,頻率也發(fā)生變化。主機(jī)轉(zhuǎn)速測(cè)量的傳感器共有4個(gè)。2個(gè)測(cè)量轉(zhuǎn)速并經(jīng)速度變送器在CMR盤或OCW盤顯示轉(zhuǎn)速,另外2個(gè)供調(diào)速器使用。

 ?。?/span>2) 速度變送器。將傳感器傳輸來的頻率信號(hào)轉(zhuǎn)換成4~20 mA的電流信號(hào),傳送給轉(zhuǎn)速表。

  (3) 轉(zhuǎn)速表。顯示轉(zhuǎn)速。


The working principle of the speed measurement and protection system for diesel generator sets:

Speed is one of the most basic and important parameters in diesel generator equipment. The ignition speed during start-up, speed adjustment during operation, parking protection during overspeed, and even the size of the load can also be reflected from the speed. Therefore, speed measurement is the basis of diesel generator monitoring and protection. There are two ways to measure the rotational speed in a typical diesel engine: one is to measure the engine speed, and the other is to measure the turbocharger speed.

(1) Sensors. The sensor is a proximity sensing switch that can operate without contact. It consists of an oscillator, a trigger, and an amplifier, which generate an alternating electromagnetic field through the oscillator circuit coil. When a metal conductor approaches the sensor, the alternating magnetic field will change, and the output voltage of the oscillator will also change, along with the frequency. There are a total of 4 sensors for measuring the speed of the host. Two measure the speed and display it on the CMR or OCW panel through the speed transmitter, while the other two are used for the speed controller.

(2) Speed transmitter. Convert the frequency signal transmitted by the sensor into a 4-20 mA current signal and transmit it to the tachometer.

(3) Tachometer. Display the rotational speed.


在線客服
聯(lián)系方式

熱線電話

18901444789

上班時(shí)間

周一到周五

公司電話

0514-86829289

二維碼
久久精品国产亚洲av无码娇色| 日韩精品无码熟人妻视频| 女人被做到高潮免费视频| 色五月丁香五月综合五月亚洲| 思热99re视热频这里只精品| 一个人在线观看免费视频www | 国内精品久久久久影院优 | 亚洲国产精品一区二区第四页| 中国老熟女重囗味hdxx| 人人添人人澡人人澡人人人人| 特黄大片又粗又大又暴| 9久9在线视频 | 传媒| 99精品国产成人一区二区| 亚洲国产av高清无码| 亚洲国产av一区二区三区| 2023亚洲男人天堂| 国产精品va在线观看无码| 天天澡天天添天天摸97影院| 一本色道久久综合一| 精品人妻无码区在线视频| 精品国产免费一区二区三区| 久久久久久久久毛片精品| 久久亚洲精品人成综合网| 欧美亚洲人成网站在线观看| аⅴ天堂中文在线网| 成人伊人精品色xxxx视频| 特级做a爰片毛片免费看| 精品一区二区三区无码免费视频 | 嫖妓丰满肥熟妇在线精品| 丁字裤少妇露黑毛| 六月丁香婷婷色狠狠久久| 看国产黄大片在线观看| 在线精品一区二区三区| 亚洲国产精品日韩专区av| 99久久无码一区人妻 | 中文字幕免费不卡二区| 亚洲午夜精品久久久久久浪潮| 精品精品国产自在97香蕉| 国产精品久久久久久无码五月 | 1区2区3区产品乱码免费| 欧美xxxx黑人又粗又长精品|