Inundation prevention apparatus for electric power equipment using pneumatic pressure

Abstract

An inundation prevention for electric power equipment, which has transformers or terminals with a casing and is located on a stand provided on the roadside or underground, using pneumatic pressure, includes an inundation detecting unit for determining whether or not the electric power equipment is inundated and a pressure generating unit for supplying compressed gas to the inside of a limited around the electric power equipment according to a determination result of the inundation detecting unit, so as to raise the pressure in the limited space.

1 . An inundation prevention apparatus for electric power equipment, which has transformers or terminals covered with a casing and is located on a stand provided on the roadside or underground, using pneumatic pressure, comprising:
 an inundation detecting unit for determining whether or not the electric power equipment is inundated; and   a pressure generating unit for supplying compressed gas to the inside of a limited space provided around the electric power equipment according to a determination result of the inundation detecting unit, so as to raise the pressure in the limited space.   
   
   
       2 . The inundation prevention apparatus according to  claim 1 , wherein the limited space provided around the electric power equipment is a limited space covering the entire electric power equipment. 
   
   
       3 . The inundation prevention apparatus according to  claim 1 , wherein the limited space provided around the electric power equipment is at least one inundation inhibition space prepared along the circumference of the electric power equipment. 
   
   
       4 . The inundation prevention apparatus according to  claim 1 , wherein the pressure generating unit includes a motor, a compressor, and at least one air tank. 
   
   
       5 . The inundation prevention apparatus according to  claim 1 , wherein the pressure generating unit includes a plurality of gas bombs filled with compressed air. 
   
   
       6 . The inundation prevention apparatus according to  claim 1 , wherein a float, which is ascended or descended by the level of the influent water to start and stop the operation of the pressure generating unit, and a switching valve, which is opened and closed by the float, are connected to the pressure generating unit. 
   
   
       7 . The inundation prevention apparatus according to  claim 1 , wherein the inundation detecting unit includes a control circuit operated by a water level sensor, and a solenoid valve driven by the control circuit.