Field Tests for Development of 10,000,000-Kva 230-Kv Oil Circuit Breakers for Grand Coulee Power Plant

1948 ◽  
Vol 67 (1) ◽  
pp. 271-287
Author(s):  
C. L. Killgore ◽  
W. H. Clagett
Keyword(s):  
Power Plant ◽  
Field Tests ◽  
Circuit Breakers ◽  
Grand Coulee

Field Tests at Grand Coulee Dam on 10,000-Mva 230-Kv Low-Oil-Content Impulse Circuit Breaker

1951 ◽  
Vol 70 (2) ◽  
pp. 1377-1385 ◽  
Author(s):  
A. F. Darland ◽  
C. L. Killgore ◽  
C. J. Balentine ◽  
E. B. Rietz
Keyword(s):  
Oil Content ◽  
Circuit Breaker ◽  
Field Tests ◽  
Grand Coulee Dam ◽  
Grand Coulee

scholarly journals The novel solution of ball valve with replaceable orifice. Numerical and field tests

2019 ◽  
Vol 9 (1) ◽  
pp. 253-259 ◽  
Author(s):  
Grzegorz Romanik ◽  
Janusz Rogula
Keyword(s):  
Power Plant ◽  
Experimental Verification ◽  
Theoretical Approach ◽  
Field Tests ◽  
Ball Valve ◽  
Numerical Calculations ◽  
Compressed Air ◽  
The Novel ◽  
Measuring Device ◽  
Flow Through

AbstractThe article presents the results of numerical calculations and experimental results of a flow through the orifice. Such a measuring device was built-into the ball valve that gave unique possibility of the orifice exchange without the pipeline disassemble. The advantages of using the prototypical solution has been described. This patented solution has been tested extensively for the durability and tightness. The article contains comparison between flow character in the case of single-hole orifice and a multi-nozzle one. The prototypical measuring device has been produced and assembled in compressed air system in the Power Plant Opole, that gave experimental verification of theoretical approach.

A Hydroelectric Plant Simulation Model to Test the Performance of Actual Governor Control Systems

2008 ◽  
Author(s):  
Iva´n F. Galindo-Garci´a ◽  
Antonio Tavira-Mondrago´n ◽  
Sau´l Rodri´guez-Lozano
Keyword(s):  
Power Plant ◽  
Simulation Model ◽  
Control Systems ◽  
Real Time ◽  
Hydraulic System ◽  
Hydroelectric Plant ◽  
Field Tests ◽  
Hydroelectric Power Plant ◽  
Hydroelectric Power ◽  
Surge Tank

A simulation model of the hydraulic system of a hydroelectric power plant is developed and implemented in a real time simulator. The main purpose of the simulator is to test the performance of actual governor control systems using hardware-in-the-loop techniques, in which the actual governor control system is connected to a real time simulator instead of being connected to real equipment. This paper focuses on the modeling of the hydraulic system to be implemented in the simulator. The model consists of an unrestricted reservoir, conduits to transport water, and a turbine to convert the potential energy of the fluid into mechanical power. A nonlinear mathematical model for a non-elastic water column is implemented. Effects due to a surge tank and to various turbines connected to a common tunnel are included in the model by considering head and flow variations at the junction of the common tunnel and the individual penstocks. The model is evaluated by comparing results from simulations with field tests from a four-unit hydroelectric power plant (55 MW per unit). Comparisons show that the model reproduces the general behavior of the field tests. However some deviations are observed during the transient response, in particular the simulation results appear to respond faster than field data.

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