供應(yīng) RN3系列高壓限流熔斷器找曙光熔斷器

RN3系列戶(hù)內(nèi)高壓限流熔斷器,用于電力線路的過(guò)載及短路保護(hù)。所謂限流就是熔斷器在短路電流達(dá)到峰值之前就將其切斷的功能。

□The product is in overload or short-circuit protection for elctric transformer. The current limiting means that the fuse will cut off the circuit before the shortcircuit current reaches the peak value.

熔斷特性
當(dāng)通過(guò)熔斷器的電流為其額定電流的1.3倍時(shí),1小時(shí)不熔斷；當(dāng)通過(guò)熔斷器的電流為其額定電流的2倍時(shí),1小時(shí)內(nèi)熔斷；熔斷器的熔斷特性曲線如圖1,供選擇熔斷器時(shí)參考。

Current which passes the fuse when being 1.3 times of its specified electric current, Do not fusing for an hour; When the current through the fuse is 2 times of its specined electric current, fusing in an hour; Refer to its fusing feature curve in chart 1 when select the fuse。

RN3系列戶(hù)內(nèi)高壓限是用于電力線路及輸電設(shè)備的過(guò)載及短路保護(hù)。

RN3型系列高壓限流熔斷器比RNL型有如下改進(jìn)。

1,熔體采用片狀變截面多斷口結(jié)構(gòu),為使開(kāi)斷能力增強(qiáng)。開(kāi)斷速度加快,開(kāi)斷后絕緣可以迅速建立。對(duì)抗過(guò)電壓沖擊能力得到改善。

2,RN3型系列高壓限流熔斷器。為了使其能與FN5負(fù)荷開(kāi)關(guān)配合工作。完善了指示的基本功能。

3,按國(guó)家標(biāo)準(zhǔn)草案GBL5166.1-5—《限流式熔斷器》中的試驗(yàn)方法,可開(kāi)斷20-150MVA的短路容量,而RN1型只能開(kāi)斷40～80MVA 的短路容量。RN3型可配合FN5開(kāi)斷過(guò)載電流。開(kāi)斷過(guò)載電流。

4,熔斷器的工作溫度降低,熔管的額定電流得到提高,具體參見(jiàn)圖樣。

The fuse flows in high voltage limt in RN3 type one(RN1)

1．Meltiing body adopt slice become section fracture structure more is for make and turn on and give up abiltiy streng then,open and break accelerating, can set up rapidly to bring up the rear insulatingl while openning. AssauIt ability and was improved after opposing the voltage.

2．RN 3 type serial high-voltage Iine the fuse flows．For enabIe them be abIe to cope rate with Fn5 on-Icad switch and work．Have perfected the basic function of pointing out．Should point for to trip in the organiz-ation on-load switch．

3．From nationaI standard d raft GBl5166．The experimental methods of”Iimit flowina type device fuse box”for 1-5-94． can make the capacity of short circuit of breaking 20-1 50MVA．a(chǎn)nd Rn1 type can only make the capacity of short circuit of breaking 40-80MVA. Rn3 type can cooperated with Fn 5 and opened and broken the ilectric curtent in year. RNl type. can’t triP

4．Workinq temperature of fuse box reduce,rated current of the fuse has been ine reased,See the pattern concretly.