Westinghouse Electric

About: Westinghouse Electric is a company organization based out in Cranberry Township, Pennsylvania, United States. It is known for research contribution in the topics: Brake & Circuit breaker. The organization has 27959 authors who have published 38036 publications receiving 523387 citations.

Automatic pump protection system

Abstract: An automatic pump protection system is comprised of a plurality of sensors for measuring process parameters indicative of a loss of pump suction or of pump motor failure. Analysis of the parameters is performed by a microprocessor in order to determine whether conditions leading to a loss of pump suction or pump motor failure are present. The microprocessor then automatically initiates pump protective action in response to the foregoing analysis by tripping the pump or by providing an alternate suction source.

Metal/air cells and improved air electrodes for use therein

Abstract: Air electrodes for use in electrochemical energy cells which comprise a hydrophilic layer and a hydrophobic layer laminated thereto. The hydrophilic layer essentially comprises a hydrophilic composite which includes I. an oxygen absorption/reduction carbon, Ii. a material selected from the group consisting of A. CuWO 4 , NiWO 4 , CoWO 4 and WC with 1-20 wt. % Co. for a unifunctional electrode, or B. WS 2 , WC, and WC with 1-20 Wt.% Co. for a bi-functional electrode, and Iii. a nonwetting agent containing a polytetrafluoroethylene. A metal current collector is molded into the composite to form a substantially flat hydrophilic layer. A catalyst is preferably incorporated into the composite of a bifunctional electrode to increase cycling life. The hydrophobic layer, comprising a sheet of porous fluorinated ethylene propylene, polypropylene or polytetrafluoroethylene, is laminated to the hydrophilic layer to complete the air electrodes of the invention.

Cold spray repair process

Abstract: A process ( 30 ) for the repair of a component part ( 36,66 ) incorporating a cold spray process step ( 50 ) for depositing material particles ( 54 ) to fill a discontinuity ( 40 ) in the part surface ( 42 ) or to create a desired surface geometry ( 78 ) on the part ( 66 ). The cold spray process may be controlled to provide a grit blasting effect prior to depositing the material in order to remove contaminants ( 48 ) from the surface of the part. The material deposited ( 56 ) by the cold spray process may form a joint ( 78 ) between an insert ( 72 ) and the part ( 66 ). The process may be used to repair parts made of directionally solidified (DS) or single crystal (SC) base material ( 44 ) without causing a re-crystallization of the base material. The process may further be used to deposit repair material ( 56 ) over a braze material ( 22 ).

Distribution network powerline carrier communication system

Abstract: A distribution powerline carrier communication system for providing distribution automation functions. The communication system includes a distribution powerline, with inductive couplers and frequency translating repeaters cooperating to circumvent signal obstructions, such as distribution transformers, and to increase the signal strength. The inductive couplers pick up the communication signals without metallic contact to the primary distribution lines, and the repeaters change the frequency band of the communication signals, enabling the amplifier gain of the repeaters to be selected without limitation due to undesirable feedback and oscillation.

Detailed Hydrogovernor Representation for System Stability Studies

Abstract: In studying transient performance of power systems, large computer programs are now used with representation of individual unit governing systems included. Detailed representation of hydrogovernors is not usually available, but, rather, an equivalent transfer function is employed.