External integrated type all fiber optical current transformer for isolated-type circuit breaker

The invention discloses an external integrated type all fiber optical current transformer for an isolated-type circuit breaker. The current transformer comprises fan-shaped mounting plates, a connecting terminal, a hardware fitting outer cover, a hardware fitting base plate, suspension-type insulators, a welding plate, an adjusting plate, a sensing ring, an insulation pad, an insulation sheet, a seal ring, a base mounting plate, a corrugated pipe, an electrical unit, and the like. The external all fiber optical current transformer is directly mounted on the outer side of the isolated-type circuit breaker, and the all fiber optical current transformer is wholly hung on the outer side of a flange of the isolated-type circuit breaker through the fan-shaped mounting plates, and the lower end of the all fiber optical current transformer is fixed through the base mounting plate. The current transformer disclosed by the invention has high independence, high flexibility, wide measuring dynamic range, and high frequency responsivity so as to fill up the blank of the industry in the isolated-type circuit breaker application field.