O-type oil-immersed high-breaking capacity high-voltage current-limiting fuse is a fuse with good sealing, low power consumption, high breaking capacity, fast action, and good protection characteristics.

1. Scope of application:

O-type oil-immersed high-breaking capacity high-voltage current-limiting fuses are suitable for AC 50HZ, rated voltage 3.6~24KV, rated current 200A (3.6KV), 160A (7.2KV), 125A (12KV) and below power systems, as It is used for overload or short circuit protection of transformers and other electrical equipment, and can also be used in conjunction with load switches and vacuum contactors. This high-voltage fuse conforms to the national GB15166.2 standard, the International Electrotechnical Commission IEC282-1 standard and the British BS standard.

2. Structural features:

O-type high-voltage fuse adopts two wiring methods, plug-in type and busbar type, which have the characteristics of small installation volume, reliable contact and convenient replacement; The treated high-purity quartz sand is sealed together in the fusion tube; the fusion tube is made of high-temperature-resistant high-strength alumina porcelain. When a fault occurs in the line, the melt melts, and at the moment when the arc appears in the melt, the high-resistance metal wire of the striker in parallel with the melt melts immediately, and the gunpowder is ignited to generate high pressure to eject the striker quickly, pushing the interlocking electrical contacts, and automatically Switch the circuit or issue a fuse signal.