高分段能力高压限流熔断器：
一、用途：
变压器保护：XRNT SDLAJ SFLAJ SKLAJ STR4
电动机保护：XRNM XRNM1 RNK WDNHO WFNHO WKNHO
互感器保护：XRNP RN2
电容器保护：BR1 BR2 BRN BRW BRW2 RYN1 PT-10
线 路 保护：RN1 RN2 RN3 RN4 RN5 RN6 RXWO RW9 RW10 RWJ
二、电压等级有:3KV 6KY 7.2KV 10KV 12KV 15KV 15.5KV 20KV 24KV 35KV 40.5KV
三、技术标准： GB15166-2 IEC280-1 英国BS 德国DIN
□RN1型户内高压限流熔断器，用于电力线路的过载及短路保护。所谓限流就是熔断器在短路电流达到峰值之前就将其切断的功能。
□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.
◆熔断特性
当通过熔断器的电流为其额定电流的1.3倍时，1小时不熔断；当通过熔断器的电流为其额定电流的2倍时，1小时内熔断；熔断器的熔断特性曲线如图1，供选择熔断器时参考。
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.
◆技术数据 Technique data
3 6 10 35
额定电流 A 20 100 200 300 400 20 75 100 200 300 20 50 75 100 200 7.5 10 20 30 40
最大开断电流KA (有效值)
Max breaking curent KV effective vakue 40 20 12 3.5
最小开断电流(以额定电流倍数表示)
The mininum breaking current Express
with specified electric current multipe 不规定
nuprovide 1.3 不规定
nuprovide 1.3 不规定
nuprovide 1.3 不规定
nuprovide 1.3
三相最大断流容量（MVA） 200
重量 Weight 8 8.9 10.8 15.7 15.7 8.5 9.6 13.6 13.6 17 10 11.5 14.5 21 21 10 20 27 27 27
◆熔断管结构 Structure of fuse
熔断管是熔断器的主要部件，它是由熔丝装在瓷管中，并在瓷管中充填石英砂，两端密封而成。额定电流在7.5A以下及额定电压 为35V的熔管，其熔丝是绕在特制的瓷芯上，如图2.a；额定电流在7.5A以上的熔体管，其熔丝是悬挂在瓷管中如图2.b。
The fuse pipe is the main part of fuse,it is made by installing the fuse wire in the porcelain pipe,filling the quartz sand in the porcelain pipe and sealing to-ends of pipe.For the fuse pipe with rated current below 7.5Aand 35V rated voltage,its fuse wire is rolled on the special por-
celain core,referening to chart 2.a.for the fuse pipe with rated current above 7.5A,its fuse wire is hang in the porcelain pipe,referening to the chart.
◆外型及安装尺寸 Installation Dimensios
图2 RN1-及RN2型熔体管剖面
Chart 2-the section of Rn1and Rn2 style fuse pipe
图3 RN1-3，6，10/2-20型外形尺寸
Chart 2-the section of Rn 1and Rn2 style fuse pipe
□1.端盖 Cover □6.指示器熔丝 Indicator fuse wire
□2.端帽 Cap □7.弹簧 Spring
□3.瓷管 Porce lain pipe □8.指示器头 Indicator
□4.熔丝 Fuse wire □9.瓷制芯子 Porcelain core
□5.石英砂 Quartz sand □10.胶垫 Rubber washer
产品型号
Product type 产品型号
Product code number 图号
Diagram number 额定电压(KV)
Rated voltage 额定电流
RaFuse current A 主要尺寸Main sizemin
A a L H1 H b
RN1-3/2 RN3 图3 3 2 220 400 450 125 235 108
RN1-3/3 RN3 3
RN1-3/5 RN3 5
RN1-3/7.5 RN3 7.5
RN1-3/10 RN3 10
RN1-3/15 RN3 15
RN1-3/20 RN3 20
RN1-6/2 RN3 6 2 320 500 550
RN1-6/3 RN3 3
RN1-6/5 RN3 5
RN1-6/7.5 RN3 7.5
RN1-6/10 RN3 10
RN1-6/15 RN3 15
RN1-6/20 RN3 20
RN1-10/2 RN3 10 2 420 600 650
RN1-10/3 RN3 3
RN1-10/5 RN3 5
RN1-10/7.5 RN3 7.5
RN1-10/10 RN3 10
RN1-10/15 RN3 15
RN1-10/20 RN3 20
