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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
12kV high voltage current-limiting fuse for transformer protection  
This product is used in indoor AC system of 50Hz, rated voltage of 12kV, to protect 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 contactor, 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)
XRNT1-12
12
200
160200
Note: Above parameters are the ratings for single tube fuse. The fuses can be connected in parallel according to user's requirement to get higher current rated values.
3.Main technical data  
(1)The fuses can break any fault current from the minimum breaking current of 5Ie (rated current of fuse-element) to the rated breaking current of 50kA.  
(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(a)
The shape and dimension of the fuse-element is shown in Fig.3(b)
5.Guides for selecting fuse
The general guides for selecting fuse-element used for 12kV transformer protection are shown in table 2.
Table 2

Transformer capacity (kVA)

Rated current of fuse-element (A)

1500/600

160

2000

200

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