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H.V.HRC current-limiting fuses type S for transformer protection
H.V.HRC current-limiting fuses type S for transformer protection
     H.V.current-limiting fuses type S is mainly used in AC 50Hz,rated voltage 3.6-36Kv,rated current up to 200A circuit for protection transformers and power equipments from overload and short-circuitl.It can also be used with load switch,vacuum contact.
    It conforms to IEC282-1,GB15166.2 and DIN43625 standard.
Basic Data

Rated voltage (kV)
Department
Models Foreign
Rated current of the fuse links(A)
Rated breaking current (kA)
Dimensions(mm)
Weight(kg)
¦ŐD
L
3.6 XRNT1 SDO.J 6.3,10,16,20,25,31.5,40 31.5 51 192 1.12
7.2 XRNT1 SDL.J 6.3,10,16,20,25,31.5,40,50,63 31.5 51 292 1.47
7.2 XRNT1 SFL.J 80,100,125,160 31.5 76 292 3.15
12 XRNT1 SDL.J 6.3,10,16,20,25,31.5,40 31.5 51 292 1.47
12 XRNT1 SFL.J 50,63,71,80,100 31.5 76 292 3.15
12 XRNT1 SKL.J 125 31.5 76 292 3.15
12 XRNT1 SXL.J 160,200 31.5 88 292 4.15
24 XRNT1 SDM.J 6.3,10,16,20,25,31.5,40 31.5 51 442 2.70
24 XRNT1 SFM.J 50,63,71,80,100 31.5 76 442 4.50
24 XRNT1 SKM.J 125 31.5 76 442 4.50
24 XRNT1 SXM.J 160 31.5 88 442 5.40
36 XRNT1 SDQ.J 3.15,6.3,10,16,20,25 31.5 51 537 2.90
36 XRNT1 SFQ.J 31.5,40 31.5 76 537 5.52
36 XRNT1 SXQ.J 63 31.5 88 537 6.50

Note:Under stipulated condition,min.breaking current of fuses could be as highas 2.5ˇ«3.0 tims than tated current.

Selection of prodper fuse links for transformer protection

Transformer(kVA)
Transformer proimary voltage
7.2(kV) 10(kV) 20(kV) 30(kV)
Fuse model /Rated current (A) Fuse model /Rated current (A) Fuse model /Rated current (A) Fuse model /Rated current (A)
50 SDL.J-7.2kV/8A SDL.J-12kV/6.3A SDM.J-24kV/3.15A SDQ.J-40.5kV/3.15A
100 SDL.J-7.2kV/16A SDL.J-12kV/10A SDM.J-24kV/6.3A SDQ.J-40.5kV/6.3A
125 SDL.J-7.2kV/20A SDL.J-12kV/12A SDM.J-24kV/6.3A SDQ.J-40.5kV/6.3A
160 SDL.J-7.2kV/25A SDL.J-12kV/16A SDM.J-24kV/8A SDQ.J-40.5kV/6.3A
200 SDL.J-7.2kV/31.5A SDL.J-12kV/20A SDM.J-24kV/10A SDQ.J-40.5kV/8A
250 SDL.J-7.2kV/40A SDL.J-12kV/25A SDM.J-24kV/12A SDQ.J-40.5kV/10A
300/315 SDL.J-7.2kV/50A SDL.J-7.2kV/31.5A SDM.J-24kV/16A SDQ.J-40.5kV/10A
400 SDL.J-7.2kV/63A SDL.J-12kV/40A SDM.J-24kV/20A SDQ.J-40.5kV/16A
500 SFL.J-7.2kV/80A SFL.J-12kV/50A SDM.J-24kV/25A SDQ.J-40.5kV/16A
630 SFL.J-7.2kV/100A SFL.J-7.2kV/63A SDM.J-24kV/31.5A SDQ.J-40.5kV/20A
750/800 SFL.J-7.2kV/125A SFL.J-12kV/80A SDM.J-24kV/40A SDQ.J-40.5kV/25A
1000 SFL.J-7.2kV/160A SFL.J-12kV/100A SFM.J-24kV/50A SFQ.J-40.5kV/31.5A
1250   SKL.J-7.2kV/125A SFM.J-24kV/63A SFQ.J-40.5kV/40A
1600   SXL.J-12kV/160A SFM.J-24kV/80A SFQ.J-40.5kV/50A
2000   SXL.J-12kV/200A SFM.J-24kV/100A SXQ.J-40.5kV/63A
 
Dimension drawing