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Wind power
Motor Protection
3.6kV high voltage current-limiting fuse
7.2kV high voltage current-limiting fuse
12kV high voltage current-limiting fuse
Transformer Protection
Germany DIN Dimension Standards
British BS Dimension Standards
12kV high voltage current-limiting fuse
40.5kV high voltage current-limiting fuse
Oil-immersed high voltage fuse
Oil-immersed high voltage current-limiting fuse
Voltage Transformer Protection
RN Series
40.5kV high voltage current-limiting fuse for transformer protection  
This product is used in indoor power system of 50Hz AC, rated voltage of 40.5kV, to protect high voltage power transformer and other electrical equipment from overloading and short-circuit. It also can be used together with other protective electric apparatus (e.g. load switch, vacuum breaker, etc.).
1.Type
2.Basic parameters (as shown in table 1) 
Table 1
Type
Rated voltage (kV)
Rated Current of Fuse (A)
Rated Current of Fuse-element(A)
XRNT1-40.5
40.5
16
31.5、6.37.5、10、16
40
20、25、31.5、35.5、40
63
45、50、56、63
3.Main technical data  
(1)Under the specified conditions, the fuses can break any fault current from the minimum breaking current of 3Ie to the rated breaking current of 31.5kA.  
(2)Time-current characteristics curve is shown in (Fig.1), the dotted lines stand for the current above the minimum breaking current.  
(3)Current-limiting characteristics curve is shown in (Fig.2).
4.Shape and mounting size
The shape and dimension of the fuse-element is shown in (Fig.3)  
The shape and dimension of the fuse-element is shown in (Fig.4)
5.Selection of fuse  
The general guides for selecting fuse-element used for 12kV transformer protection are shown in table 2.
Table 2
Transformer capacitykA
primary winding voltage of transformer (35kV)

Fuse type
Rated current of fuse-element(A)
Less than 100
XRNT1-40.5/16
3.15
125
6.3
160
6.3
200
6.3
250
10
315
10
400
16
500
16
630
XRNT1-40.5/40
20
800
25
1000
31.5
1250
40
1600
XRNT1-40.5/63
50
2000
56
2500
63
AddBeilin District, Xi'an City, Torch Road Park No. 18 building 4 layer
Tel400-9986-781
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