초록 ▼

A turbine generator has a water cooling system for cooling the inside of a stator coil with water, wherein the water cooling system includes a water storage tank for storing water; pipes connecting the water storage tank and the stator coil, the pipes being provided in an inlet side and in an outlet

A turbine generator has a water cooling system for cooling the inside of a stator coil with water, wherein the water cooling system includes a water storage tank for storing water; pipes connecting the water storage tank and the stator coil, the pipes being provided in an inlet side and in an outlet side; a decarbonated air injection unit connected to the inlet side of the pipe by a pipe or a decarbonated air injection unit connected to the water storage tank; a heater for heating the water, the stator coil having an oxide film on a surface in contact with the water, the oxide film being formed before starting operation of the generator by high temperature water injected with the decarbonated air and heated by the heater; and a control unit for effecting control so that the decarbonated air is always and continuously injected into the cooling water during operation of the generator.

대표청구항 ▼

1. A turbine generator comprising a water cooling system for cooling an inside of a stator coil with water, wherein said water cooling system comprises:a water storage tank for storing said water; pipes connecting between said water storage tank and said stator coil, said pipes being provided in an

1. A turbine generator comprising a water cooling system for cooling an inside of a stator coil with water, wherein said water cooling system comprises:a water storage tank for storing said water; pipes connecting between said water storage tank and said stator coil, said pipes being provided in an inlet side and in an outlet side; at least one of (a) a decarbonated air injection unit connected to said inlet side of said pipe by a pipe and (b) a decarbonated air injection unit connected to said water storage tank; a heating means for heating said water, said stator coil having an oxide film on a surface in contact with said water, said oxide film being formed before starting operation of said generator by high temperature water injected with said decarbonated air and heated by said heating means; and a control unit for controlling so that said decarbonated air is always and continuously injected into said cooling water during operation of said generator.