Westinghouse Electric Corporation

William R Berry

Harry F Martin

Serge P Barton

Eddie Y Hwang

Charles L Groves, Jr

James A Martin, Jr

Apparatus and method for automatically determining and indicating that the rotor of a steam turbine has attained a predetermined minimal temperature. Means are utilized for measuring axial dimensional changes of the steam turbine cylinder and rotor due to an increased temperature and summing pertinent axial dimensional changes thereby determining the axial expansion of the rotor which in turn, through known physical properties of the rotor material, corresponds to a temperature increase. This increase of the temperature added to the initial temperature of the rotor provides the total temperature, and upon the total temperature reaching a predetermined value, the steam turbine is available to be brought up to speed and loaded.

Apparatus and method for determining the rotor temperature of a steam

A digital computer system for automatically controlling a turbine power plant without operator intervention is disclosed. The system controls the turbine from rolling off turning gear, through heat soak, wide range speed control, and the megawatt loading of the generator in accordance with the on-line condition of the turbine and/or generator. The rate of change of magawatt loading as well as the rate of speed under wide range speed control is automatically controlled toward an operator entered target. The I.P. rotor thermal characteristics are determined both in axial and radial directions. The on-line generator capability is determined in load control.

Turbine power plant automatic control system

A temperature measuring device for electrically measuring the temperature at a predetermined point within a body member is disclosed. The device comprises a temperature sensor electrically isolated within a metallic sheath, the sheath being securely attached to a deformable mounting head. The head is deformed to produce a gripping force to intimately hold it in position within a cavity disposed in the body member and to maintain the sensor in a temperature sensing relationship with the predetermined point of interest. A spacer member is provided to substantially fill the remainder of the cavity to prevent distortion of the temperature field. A deformable lip is disposed about the periphery of the cavity which overlaps the spacer member and provides a holding force to assist in maintaining the sensor in position.

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Camden, NJ, United States of America

William R Berry