
The product is used in overload or short-circuit protection for voltage transformer. At the time of holding up by restrain circuit current way to get minimum from carrying on instantaneous to turn on and break, it should be within the range of 0.6-1.8A to fuse the electric current in one minute.
Technique data
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Product type |
RN2-3、6、/1 |
RN2-15、20 |
RN2-35 |
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|
Rated voltage Kv |
3 |
6 |
10 |
15 |
20 |
35 |
|
Fuse current A |
0.5 |
0.5 |
0.5 |
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|
Capacity of largest break of three-phase MVA |
500 |
1000 |
1000 |
1000 |
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|
Max break current KA effective value KA |
100 |
85 |
50 |
40 |
30 |
17 |
|
Over voltage multiple Do not exceed |
Do not exceed voltage of 2.5 times of rating |
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|
Resistance of the fuse pipe ( Ω) |
93±7 |
200±10 |
315±14 |
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|
Weight Kg |
5.6 |
12.2 |
15.6 |
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|
Fuse weight Kg |
0.9 |
1.6 |
2.5 |
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Installation Dimensios

The fuse flows in high voltage limt in RN3 type one(RN1).
1.Melting body adopt slice become section fracture structure more is for make and turn on and give up ability strengthen,open and break accelerating,can set up rapidly to bring up the rear insulatingl while openning. Assault ability and was improved after opposing the voltage.
2.RN 3 type serial high-voltage line the fuse flows. For enable them be able to cope rate with Fn5 on-load 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 national standard draft GBI5166. The experimental methods of” limit flowing type device fuse box”for 1-5-94,can make the capacity of short circuit of breaking 20-150MVA, and 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. RN1 type. can't trip
4.Working temperature of fuse box reduce,rated current of the fuse has been inereased, See the pattern concretly.

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