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Help CenterKumanical Brand High Voltage Fuse Cut Out RTF-1 (High Voltage Fuse 12KV)
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Specifications
1.Voltage:11KV, 12KV, 15KV, 24KV, 33KV2.Current:100A, 120A
3.A complete range of specifications
4.OEM is available
Kumanical Brand High Voltage Fuse Cut Out RTF-1 (High Voltage Fuse 12KV)
General
Drop-out fuse cutout and load switching fuse cutout are of outdoor used high voltage protective device, to be connected incoming feeder of distribution transformer or distribution lines it mainlly protect transfomer or lines from short circuit and overload, and on/off loading current, Drop-out fuse cutout is composed of insulator supports and fuse tube, static conntacts is fixed on two sides of insulator support and moving tube, contact is installed on two ends of fuse tube. Fuse tube is composed of inside arc-extinguishing tube outer phenolic compound paper tube or epoxy glass tacts and arc-extiguishing exclosure for switching on/off loading current.
At nnormally working via fusellink tightened the fuse tube is fixed to form up of close position, In case system occure faults, fault current result guishing melt immediately and take place electric arc, which let arc-extinguishing tube being heated and explode a lot of gas, this will produce high pressure and blow off the arc along with tube. After fuselink melt moving contact has no tightened strenngth again mechianism is locked and fuse tube drop out, Cutout now is in open position. When it needs to switch off during cutout loading , operator shall via insulating operating bar pull the moving contact, at its beginning the auxiliary static contact is contacted still ,whiling pulling the auxiliary contact is separated between auxiliary contacts there occur electric arc and the arc-extinguishing explode gas to blow off the arc during current passing zero.
Specification
10KV-15KV
Type |
Rated voltage (KV) |
Rated current (A) |
Breaking current (A) |
Impuls voltage BIL (KV) |
Power frequecy withstand voltage (KV) |
Creepage distance (mm) |
Weight (kg) |
Dimensions (CM) |
RTF-1 |
12 |
100 |
10, 000 |
110 |
42 |
245 |
2.9 |
38.5*34.5*10.5 |
RTF-1 |
12 |
120 |
12, 000 |
110 |
42 |
245 |
2.9 |
Dimension
No. |
Description |
|
1 |
Nut |
|
2 |
Long Bolts |
|
3 |
Mounting Bracket I |
|
4 |
Mounting Bracket II |
|
5 |
Porcelain insulator |
|
6 |
Spring Washer |
|
7 |
One-piece channel |
|
8 |
Fuse Tube |
|
9 |
Lower |
|
10 |
Lower contacts |
|
11 |
Connector |
|
12 |
Upper Contacts |
|
13 |
Attachment Hooks |
|
14 |
Operation Ring |
|
Note: *Add connector suffix per table 1. *Dimension shown is for'C'suffix(nema 'B'bracket.) Dimension is 53/16 for'B' suffix fuerte exetended bracket. 'D'suffix only. |
Table 1
Connector | ||
Type |
wire size |
Catalogue no.suffix |
Parallel groove |
No.6 solid cu thru 250 KC will stranded cu or al or4/0 acsr |
-D |
Eye bolt |
No.6 solid cu thru 2/0stranded cu or al or4/0 acsr |
-J |
Eye bolt |
No.6 solid cu thru 250 KC will stranded cu or al or4/0 acsr |
-M |
Table 2
Style |
Rating |
Leakage distance to gro.minum inches |
|||
Catalogue |
KV.Nom |
BIL |
Ammps |
||
Extra heavy duty |
RTF |
25 |
150 |
100 |
-D |
Ultra heay duty |
RTF |
25 |
150 |
100 |
-J |
Heavy duty |
RTF |
14.4 |
150 |
100 |
-M |
Packing
Other Models
| |||
| RTF-1 | RTF-2 | RTF-3 | RTF-4 |
| |||
| RTF-5 | RTF-6 | RTF-7 | RTF-8 |
| |||
| RTF-9 | RTF-10 | RTF-11 | RTF-12 |
| |||
| RTF-13 | RTF-14 | RTF-15 | RTF-16 |
| |||
| RW20 | RW11 | HRW11 | PRWG1 |
| |||
| RW10(W) | RW10-10F | HRW10 | RW10-35 |
| |||
| PRWG2 | RW3 | RW7 | |
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