ZR中國SF6氣體密度表,SF6氣體密度繼電器,

SF6氣體密度控制器介紹

SF6 氣體密度表YM / YWM / YXM

SF6 氣體密度控制器簡介SF6 gas densimeter & SF6 gas density controller

SF6 氣體應用SF6 gas intended
當高壓斷路器(又稱高壓開關)在開斷電路時會有火花產生又稱之為電弧，在電氣設備中電弧的產生會對斷路器造成燒毀甚至發(fā)生爆炸的危害。SF6 氣體由于具有絕緣性能好滅弧能力強的特性，目前在高壓斷路器中被廣泛使用。

The spark happened when the electric switching or the high pressure breaker (high pressure switch) open or close circuit is the electric arc. The electric arc produced in the electrical equipment may lead the circuit breaker to burn down even explosive. The SF6 gas is widely used in the high-pressured electric appliance because it has the insulating ability of extinguishing arc.

SF6 氣體在電力設備中的滅弧性能取決于設備容器中的SF6 氣體的密度。如在不同型號、規(guī)格的斷路器中的SF6氣體的密度就是不相同的，如果SF6氣體由于泄漏，密度減小，則滅弧作用就會減弱或起不到滅弧作用，因此，用SF6 密度表對容器內SF6 氣體的密度進行監(jiān)視和控制就顯得格外重要。

The ability of The SF6 gas extinguishing arc has big relations with the SF6 gas density in the equipment vessel. In the different model, specification circuit
breaker SF6 gas density is different, when the density SF6 gas is lower than some value, the extinguishing arc function is weaken, therefore, it is important that carrying on the surveillance and the control of the SF6 gas density .

SF6 密度表原理與應用SF6 densimeter principle & intended
Zoriver中國生產制造的SF6 密度表，有“YM(M1)”T-P 曲線監(jiān)測“; YWM (M2)”溫度補償監(jiān)測;“YXM (M3)”溫度補償加控制裝置三大系列產品。

　　The SF6 densimeter made of Zoriver China has three big series products :"YM (M1)" T-P curve monitor; "YM (M2)" temperature compensation monitor, "YXM (M3)" temperature compensation with control device.

“YM (M1)”T-P曲線監(jiān)測系列密度表的原理與應用

"YM (M1)" the T-P curve monitor series densimeter principle and service intended

T-P 曲線監(jiān)測SF6 氣體的密度，是將一定額定工作壓力下的SF6 溫度- 壓力對照情況用一條曲線在表盤上表示出來，讓人們從表盤上方便和直觀地來監(jiān)測SF6 氣體的密度情況，帶這種曲線盤的壓力表，稱之為T-P 曲線的密度表。

Under the fixed working pressure, a curve on the dial plate shows the SF6 temperature- pressure comparison situation to let the people conveniently and direct-viewing monitors the SF6 gas density situation from the dial plate.

一般情況下，表盤上是由3 條T-P 曲線組成，從左至右我們依次叫他們?yōu)椤白笄€”、“中曲線”、“右曲線”，其中“左曲線”和“右曲線”將表盤分為3 個區(qū)域，“左曲線”的左邊為紅色區(qū)域、“左曲線”和“右曲線”之間為綠色區(qū)域、“右曲線”的右邊為黃色區(qū)域(如圖)

　 In the ordinary circumstances, the dial plate is composed by 3 T-P curves, they are "the left curve", "center the curve", "the right curve" from left to right, "the left curve" and "the right curve" divides the dial plate into 3 regions, "left curve" left side for red region, "left curve" and "right curve" between for green region, "right curve" right side for yellow region (as chart).

在用“表盤上帶T-P曲線”的密度表對容器內SF6氣體密度進行監(jiān)視時，應首先測試環(huán)境溫度，然后找出環(huán)境溫度半圓線與指針的相交點A，若相交點A在綠色區(qū)域內，則表明器內SF6氣體密度在規(guī)定的范圍內；若相交點在紅色區(qū)域內，則表明器內SF6氣體密度低于規(guī)定的范圍，應當補氣或檢查容器是否有泄漏發(fā)生。

　When using the densimeter " with T-P curve on the dial plate" , you should read the thermometer nearby the densimeter to find out the ambient temperature, then find the point of intersection A of the ambient temperature half-circle line and the
pointer, if A is in green region, then the SF6 gas density is in stipulation scope; If A is in red region, then the SF6 gas density is lower than the stipulation scope, it is necessary to restore vital energy or inspect the vessel whether has divulges occurs.

“YWM (M2)”溫度補償監(jiān)測密度表的原理與應用

"YWM (M2)" temperature compensation monitor series densimeter principle and service intended

“帶溫度補償裝置”密度表是在原壓力儀表結構上，加裝溫度補償裝置所組成。是一種不用考慮環(huán)境溫度的變化(即不用查看溫度計)，也不用查看“對照表”，而是直接從密度表的讀數就可以判斷出容器內的SF6 氣體的密度是否在規(guī)定的范圍內。

The densimeter "with temperature compensation " installs the temperature compensation in the initial pressure measuring structure. It does not need to consider ambient temperature change ( not need to see the thermometer), also does not need to look over "the comparative table", but is directly judge the SF6 gas density whether in stipulation scope.

工作原理是：當環(huán)境溫度上升時，雖然容器內SF6氣體的密度未發(fā)生變化但其壓力增大，帶動指針順時方向轉動，而當溫度上升時，雙金屬補償裝置的“U形”口張大，則推動指針向逆時針方向轉動，當兩種運動引起表針的偏轉量相抵銷時，無論環(huán)境溫度如何變化，指針都不會發(fā)生偏轉。反之，當環(huán)境溫度下降時，雖然容器內SF6 氣體的密度未發(fā)生變化但其壓力減小，帶動指針向逆時方向轉動，而當溫度下降時，雙金屬補償裝置的“U 形”口縮小，則推動指針向順時針方向轉動，當兩種可運動個起表針的偏轉量相抵銷時，無論環(huán)境溫度如何變化，指針都不會發(fā)生偏轉。所以只要容器內SF6 氣體不發(fā)生泄漏，其密度不變化。儀表的示值就不變。從而達到測量和監(jiān)視其密度的作用。其使用方法是：在20℃的環(huán)境溫度下，將容器內的SF6氣體充至額定工作壓力(P額)，在每日的規(guī)定監(jiān)測時間進行監(jiān)測時，只要密度表的指針指向額定工作壓力即為正常狀態(tài)。

　 The principle of work is: When ambient temperature rises, the pressure of the SF6 gas increases, drives the indicator along the clockwise rotation, but
at the same time, the mouth of the bimetal compensation system "the U shape" publicizes, then impels the indicator to the counter clockwise rotation, when two
kind of strength be equilibrium, the ambient temperature change cannot made the indicator deflection. Otherwise, When ambient temperature falls, the pressure
of the SF6 gas decreases, drives the indicator counter the clockwise rotation, but at the same time,the mouth of the bimetal compensation system "the U shape" reduces, then impels the indicator to along the clockwise rotation, when two kind of strength be equilibrium, the ambient temperature change cannot made the indicator deflection. So the SF6 gas does not occur divulges, its density does not change. Although pressure in the vessel changes along with the ambient temperature change, under the function of the bimetal piece "temperature compensation installment", the densimeter indicator cannot have deflection. Thus the SF6 density value in the vessel is really reflected. Its application method is: ambient temperature under 20 ℃, fill the SF6 gas to the fixed working pressure (P ), Monitor at regulate time daily, it is normal while the indicator pointing the fixed working pressure.

YXM（M3）溫度補償加控制裝置的密度控制器

YXM (M3) temperature compensation with control device density controller

當“YXM (M3)”型SF6 氣體密度控制器接入密閉系統(tǒng)后，向系統(tǒng)設備中充入SF6 氣體，當SF6 氣體密度達到規(guī)定值時，密度控制器的指針指向額定工作壓力。當工作環(huán)境溫度發(fā)生變化時，雖然SF6 氣體的密度并沒有發(fā)生變化，但SF6 氣體的壓力將隨著溫度的變化而改變，密度控制器上的指針本應隨壓力的改變而發(fā)生偏轉，此時通過控制器內部的溫度補償裝置對SF6氣體壓力的變化進行補償，使指針不發(fā)生偏轉。只有在系統(tǒng)中SF6氣體發(fā)生泄漏，造成密度下降時，SF6
氣體密度控制器的指針才發(fā)生偏轉，從而起到對系統(tǒng)設備中SF6 氣體密度的監(jiān)測作用。SF6氣體密度控制器，通常配置兩個設定開關點Ps1和Ps2，設定點Ps1為報警點，設定點Ps2為閉鎖點。一旦系統(tǒng)發(fā)生SF6 氣體泄漏時，隨著SF6 氣體密度降低，指針上的觸頭（動觸頭）與設定開關點Ps1 上的觸頭（定觸頭）接觸時則發(fā)出報警信號；隨著密度繼續(xù)下降，當指針觸頭與設定點Ps2上的觸頭接觸時，則發(fā)出閉鎖信號，自動關閉斷路器開關，使之不能工作，防止事故的發(fā)生。

"YXM (M3)" SF6 density controller has installed electric contact device based on the "M2" densimeter. The two contact points is warning point and closedown point. So SF6 density controller can not only monitor but also warn and close automatically. When SF6 gas divulges, internal pressure reduces along with the density of SF6 gas reducing, causes the indicator contact (move touch) with the lower limit point (fixed touch) to send out the alarm, continues along with the density of SF6 gas reducing, the pressure continues to drop, when on the indicator contact (move touch)
with the closedown point (fixed touch) to shut-off circuit breaker switch automatically, to prevented the accident occurred.