概述
Summary
FN（以下簡(jiǎn)稱FN12-12D負(fù)荷開(kāi)關(guān)）是額定電壓為12KV，額定頻率為50Hz的三相高壓開(kāi)關(guān)設(shè)備，用于分合負(fù)荷電流，空載變壓器和電纜充電電流，關(guān)合短路電流。配裝接地開(kāi)關(guān)的負(fù)荷開(kāi)關(guān)，可以承受短時(shí)電流。
（以下簡(jiǎn)稱FN12-12（R）D組合電器），是在FN7-12D負(fù)荷開(kāi)關(guān)與S□LAJ-12(XRNT□-10)高壓限流式熔斷器組合在一起的戶內(nèi)高壓開(kāi)關(guān)設(shè)備。它可以開(kāi)斷直至短路電流的任何電流；負(fù)荷開(kāi)關(guān)開(kāi)斷工作電流，熔斷器開(kāi)斷短路電流，聯(lián)合開(kāi)斷工作電流與全短路電流之間的任何電流，同時(shí)熔斷器通過(guò)其碰撞使負(fù)荷開(kāi)關(guān)分閘。
It is a three phase H.V switch equipment of 12KV 50Hz for breaking or closing load current. No-load transformer cable charging current and closing short-circuit current.The load switch with earth switch can bear short-circuit current.
It is made up of FN12-12D load switch and S□LAJ-12(XRNT□-10)H.V current.Jointly breaking any current between short-circuit antime.Fuse box make the switch off of with the striker.
適用范圍
Application
FN12-12D/負(fù)荷開(kāi)關(guān)FN12-(R)D組合電器主要用三相環(huán)網(wǎng)或終端供電的市區(qū)配電站和工業(yè)用電設(shè)備中，作負(fù)荷控制和短路保護(hù)之用。由于組合電器對(duì)變壓器等電器設(shè)備的保護(hù)作用比用斷路器更**，特別適用于環(huán)網(wǎng)，比輻射代單元和箱式變電站。
It is used in the ring network city distribution and industrial equipment of 12KV and three-phase AC 50Hz to cortrol load and short-circuit.Because the switch with fuse protecting transformer etc more reliably than circuit breaker .It is especialy suitable for ring network clouble radial distribution and package substtion.
 
產(chǎn)品采用標(biāo)準(zhǔn)
Standard
a、GB3804-90《3～65KV交流高壓負(fù)荷開(kāi)關(guān)》
b、GBXXX-XX《交流高壓負(fù)荷開(kāi)關(guān)-熔斷器組合電器》（等效IEC420-1990）
c、GB1995-89《交流高壓隔離開(kāi)關(guān)和接地開(kāi)關(guān)》a、GB3804-90《3～65KV AC H.V Load switch》
b、GBXXX-XX《AC H.V load switch with fuse box》（the same IEC420-1990）
c、GB1995-89《AC H.V isolate switch and earth switch》正常工作環(huán)境
Normal Serviec Condition
A、周圍空氣溫度 不** +40oC 不低于-25oC；
B、海拔不**過(guò)1000米；
C、相對(duì)濕度，月平均值不大于90%，日平均值不大于95%；
D、周圍空氣應(yīng)不受腐蝕性、可燃性氣體及水蒸汽體等明顯污染；
E、無(wú)經(jīng)常性的劇烈運(yùn)動(dòng)；
F、耐污穢等級(jí)：Ⅱ級(jí)。
如使用條件**過(guò)上述規(guī)定，由用戶與制造廠商協(xié)商確定。A、The ambient air temperatrue : Max:+40oC. Min:-25oC.
B、The altitude ≤1000m.
C、The relatire humidity of air Daily average ≤95% . Monthly average ≤90%
D、The ambient air should not be obviously polluted by corrosivity or the flammability gas and geam.Etc.
E、Without frequent shake.
F、Enviroment degree : gradeⅡ.
If requirements are not mentioed above, users can fix them with the manufacturer .型號(hào)含義
Type and meaning
機(jī)構(gòu)形式：S手操、D電動(dòng)
額定動(dòng)穩(wěn)定電流（KA）
額定電流
接地開(kāi)關(guān)
額定電壓（KV）
設(shè)計(jì)序號(hào)
戶內(nèi)
交流高壓負(fù)荷開(kāi)關(guān)Mechanism mode : S by hand. D by motor.
Rated dynamic staility current
Rated current
Earth switch
Rated voltage
Designed number
Indoor
AC H.V load switch
機(jī)構(gòu)形式：S手操、D電動(dòng)
額定短路開(kāi)斷電流（KA）
額定電流
接地開(kāi)關(guān)
帶熔斷器
額定電壓（KV）
設(shè)計(jì)序號(hào)
戶內(nèi)
高壓負(fù)荷開(kāi)關(guān)-熔斷器組合電器Mechanism pattern : S handle operate. D by motor.
Rated dynamic staility current
Rated current
Earth switch
Witch switch
Rated voltage
Designed number
Indoor
H.V load switch with fuse box 技術(shù)參數(shù)和性能見(jiàn)下表
Techniacl parameter and performances(please see the table)
序號(hào)
Number
名稱
Name
單位
Unit
FN12-12D/630FN12-12D(R)D/1001額定電壓
Rated voltage
KV122額定頻率
Rated frequency
Hz503額定電流
Rated current
A6301004雷電沖擊耐受電壓
Lighting impulse resisting voltage
KV對(duì)地及相間75、隔離斷85
To ground.interphase 75 isolation break 85
51min 工頻耐受電壓
1min power frequency withstand voltage
KV對(duì)地及相間42、隔離斷48
To ground.interphase 42 isolation break 48
6額定熱穩(wěn)定電流
Rated heat-stability current
KA20(4S)7額定動(dòng)穩(wěn)定電流
Rated machine-stability current
KA508額定關(guān)合電流
Rated closing current(peak)
KA50509額定短路開(kāi)斷電流（予期值）
Rated short-circuit breaking current (prospective value)
KA 31.510臨界開(kāi)斷電流時(shí)較大I2·t
Max.critical breaking currentI2·t
A2S 按熔斷器特征曲線
fuse box characterisitic curve
11較小開(kāi)斷電流
Min.Breaking current
KA 按熔斷器特征曲線
fuse box characterisitic curve
12額定轉(zhuǎn)移電流
Rated transfer current
KA 1.513較大開(kāi)斷電流(參考值)
Max.breaking current(reference value)
KA1.814開(kāi)斷空載變壓器容量
Braking no-load transformer capcity
kva125015額定電纜充電電流
Rated cable charging current
A1016額定有功負(fù)載電流開(kāi)斷次數(shù)
Rated power load current breaking times
次
time
≥10017額定有功負(fù)載電流開(kāi)關(guān)分閘時(shí)間
Switch-off time of rated power load current switch on-and-off
S ＞0.0618接地開(kāi)關(guān)熱穩(wěn)定電流
Rated transfer current
KA20(2S)20(2S)19接地開(kāi)關(guān)熱穩(wěn)定電流(峰值)
Rated transfer current
KA505020電動(dòng)機(jī)操作電源電壓
Motor operating power valtage
V交直流100、220、
pay 110、220 direct current
 機(jī)械特征參數(shù)
Mechanical characteristic parameter
型號(hào)
Nunber
項(xiàng)目
Name
單位
Unit
FN12-12D/630FN12-120D(R)D/1001動(dòng)觸頭總行程
Machine contact qeneral travel
mm200±8-22相間中間距離（機(jī)構(gòu)儲(chǔ)能）
Interphase distance (before mechansim store energy)
mm210±33動(dòng)觸頭**行程
Dynamic contact ultra travel
mm40±24輔助觸頭開(kāi)距
Auxiliary contact distance
mm40±25三相分、合閘同期性
Three-phase switch on-and-off synchroneity
m/s＜36剛分速度
Switch-off speed
m/s＞2.8＞2.87剛合速度
Switch-on speed
m/s＞3.88金屬活門(mén)對(duì)導(dǎo)電筒距離
Distance between metal valueand conducting pipe
mm＞1259接地開(kāi)關(guān)斷口距離
Earth switch fracture distance
mm＞15010主回電電阻
Main.loop resistance
μΩ＜120＜30011較大操作力矩
Max.Opertaing moment
Nm＜160注：1、測(cè)量輔助觸頭開(kāi)距，可測(cè)量靜弧頭對(duì)導(dǎo)電筒噴口端面? /> -->
額定頻率 : 50/60（HZ） ;
額定電流 : 1000（A） ;
額定電壓 : 12k（V） ;
類型 : 高壓負(fù)荷開(kāi)關(guān) ;
型號(hào) : FN12-12（R）D ;
** : 特高 ;