H.V. & L.V. Fuse Link & Base

H.V. HRC Current-Limiting Fuses type W for Motor Protection

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S for Transformer Protection
S
W for motor protection
W
F for transformer protection
F
O for Transformer Protection
O

Applications

  • H.V HRC current-limiting fuses type F for transformer protection is mainly used in AC 50Hz, rated voltage up to 24kV, rated current160A circuit for protection transformers and power equipment from overload and short-circuit.
  • It conforms to IEC282-1, BS, DIN and GB15166.2.

Design Features

  • F type H.V HRC current-limiting fuses have two installations: Bus-bar installation and insert installation, It is small in volume, reliable in connection and convenient in install and removal. The striker parallels to the fuse element made from pure silver. They are sealed in the fuse tube filled with chemically treated high-purity quartz sand. The fuse tube is made from heat resistant, high duty ceramic or epoxy glass. When fault circuit happens, the fuse link melts, the high-resistant metal wire paralleling to fuse links melts immediately at the appearance of the arc, and the striker jumps out to push the chained equipment contact, signaling the melting or automatically cutting the circuit. The striker has spring type and powder type. Spring type strikers use the energy released by spring to push the striker; Powder type strikers use high pressure caused by the lighting powder to push the striker. F type fuse can reliably break the fault circuit which causes the fuse link to melt and which is up to the rated breaking current. It is not only featured with high breaking capacity of the current-limiting fuses, but also with protection of low overload of the un-current-limiting fuses. F type fuse had a protection of full scope breaking capacity.

Mode And Implication

    Conform to DIN standard
    Mode And Implication
Models Rated votlage(KV) Rated current of fuse link(A) Rated breakingcurrent (KA) Dimensions (mm) Figure 1 Weight (kg)
ΦD L
FDL.J 12 6.3, 10, 16, 20, 25, 31.5 50 51 292 1.47
FFL.J 12 40, 50, 63 50 76 292 3.15
FXL.J 12 80, 100 50 88 292 4.15
FDM.J 24 6.3, 10, 16, 20, 25, 31.5 35.5 51 442 2.7
FFM.J 24 25, 31.5, 40, 45 35.5 76 442 4.5
    Conform to BS standard
    Mode And Implication
Models Rated votlage(KV) Rated current of fuse link(A) Rated breakingcurrent (KA) Dimensions (mm) Figure 2 Weight (kg)
ΦD L
FFGHA 12 10, 16, 20, 25, 31.5, 40, 50, 63 40 76 359 4.0
FDIHA 24 3.15, 5, 6.3, 10, 16, 20, 31.5 35.5 51 565 3.0

Dimensions

Dimensions Dimensions Dimensions Dimensions
Dimensions Dimensions Dimensions Dimensions
Dimensions Dimensions Dimensions Dimensions
Dimensions Dimensions Dimensions Dimensions
Figure 1
Current-Limiting Fuses
Dimensions Dimensions Dimensions Dimensions
Dimensions Dimensions Dimensions Dimensions
Figure 2
Current-Limiting Fuses

I2t Characteristics of Full-range H.V. Current-limiting Fuses Type F

Rated working voltage(KV) Rated working current(A) Min.prearcing I2.t(A2.S) Max. melting I2.t(A2.S)
12 10 2.2x102 4.7x103
12 16 3.4x102 6.1x103
12 20 7.7x102 1.1x104
12 25 1.3x103 1.6x104
12 31.5 2.5x103 2.5x104
12 40 3.8x103 3.8x104
12 50 6.8x103 5.6x104
12 63 8.1x103 8.4x104

Selection of Proper Full-range H.V. Fuses Type F for Transformer Protection

Capacity of transformer(KVA) Primary voltage of transformer 12KV
Fuse models (It conforms to DIN and BS) Rated current of fuse link(A)
≤125 FDL.J-12 FFGHA-12 10
160 FDL.J-12 FFGHA-12 16
200 FDL.J-12 FFGHA-12 20
250 FDL.J-12 FFGHA-12 20
315 FDL.J-12 FFGHA-12 25
400 FDL.J-12 FFGHA-12 31.5
500 FFL.J-12 FFGHA-12 40
630 FFL.J-12 FFGHA-12 50
800 FFL.J-12 FFGHA-12 63

Characteristics Curve

Time-current characteristics of 12KV fuse links type F Time-current characteristics of 12KV fuse links type F Time-current characteristics of 12KV fuse links type F
Time-current characteristics of 12KV fuse links type F Time-current characteristics of 12KV fuse links type F Time-current characteristics of 12KV fuse links type F
Time-current characteristics of 12KV fuse links type F Time-current characteristics of 12KV fuse links type F Time-current characteristics of 12KV fuse links type F
Time-current characteristics of 12KV fuse links type F
Cut-off current characteristics of 12KV fuse links type F Cut-off current characteristics of 12KV fuse links type F Cut-off current characteristics of 12KV fuse links type F
Cut-off current characteristics of 12KV fuse links type F Cut-off current characteristics of 12KV fuse links type F Cut-off current characteristics of 12KV fuse links type F
Cut-off current characteristics of 12KV fuse links type F Cut-off current characteristics of 12KV fuse links type F Cut-off current characteristics of 12KV fuse links type F
Cut-off current characteristics of 12KV fuse links type F

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