Voltage: 3-40.5KV
Type: Indoor Medium voltage current limiting fuses
Main Technical Data:
1) The fuse shall be capable of reliably breaking any fault current from the minimum breaking current I3 up to the rated maximum breaking current I2. The minimum breaking current I3 is approximately 4 In (where InIn is the rated current).
2) In the time-current characteristic curve, the portion above the minimum breaking current I3 is shown as a dotted line.
This product is suitable for indoor AC 50Hz, rated voltage 40.5KV system, and can be used in conjunction with other protective appliances (such as load switch, vacuum contactor, etc.) as overload or short circuit protection for power transformers and other electrical equipment.
The time-current characteristic is shown in Figure 1, with the portion above the minimum interrupting current I3 indicated by a dotted line.
| Outline Dimensions and Installation | ||||||
|---|---|---|---|---|---|---|
| Model | Rated Voltage (kV) | Fuse Element Rated Current (A) | Main Parameters | Rated Maximum Breaking Current (kA) | Outline Drawing | |
| Rated Maximum Breaking Current (kA) | ||||||
| Length (mm) | Diameter (mm) | |||||
| BFY □ -40.5kV/□ A | 40.5 | 3.15, 6.3, 10, 16, 20, 25, 31.5, 40, 50 | 630 | Ø76 | 31.5 | Figure 1, 2 |
| XRNT □ -40.5kV/□ A-31.5-1 | 40.5 | 3.15, 6.3, 10, 16, 20, 25, 31.5, 40, 50 | 630 | Ø76 | 31.5 | Figure 3 |
