Index Catalog // ScholarsArchive@OSU

A voltage regulated SCR inverter utilizing conduction angle control

Creator:: Skaar, Donald Laverne
Abstract:: This paper describes an inverter design which provides voltage regulation against variations in both the input voltage and load impedance. This design modifies the so-called parallel inverter, which consists of two silicon controlled rectifiers (SCRs) operating in a push-pull arrangement, to include a third regulating SCR. This regulating SCR is...
Resource Type:: Masters Thesis
Full Text:: amplifier. A control current with this characteristic may be obtained by the bridge rectifier -zener diode

Ignitron power conversion equipments in Pacific northwest electro-chemical plants

Creator:: Denyer, Russell Hall
Resource Type:: Masters Thesis
Full Text:: sensitive reverse current ti'lps. Each rectifier transformer has its own oil circuit breaker with over

Power transformer differential relay protection as affected by magnetization inrush current

Creator:: McLeod, Dale Lloyd
Resource Type:: Masters Thesis
Full Text:: two types of current. Tests of a General Electric, ID Hariuonic Restraint Relay showed that it had

Low level D-C detection using a photoconductive modulator

Creator:: Teien, Aage
Resource Type:: Masters Thesis
Full Text:: - cular the base-to-errltter voltage (VUE), the collector-to-base leak- age current (Iç) and the forward

A flux-coupled current measuring system with a bandwidth from D.C. to fifty megahertz

Creator:: Peek, William Henderson
Abstract:: An instrument which measures current from D.C. to 50 megahertz by clipping a transformer core around a current carrying conductor is discussed. A Hall device, which is installed in the core cross-section, detects the flux in the core. This Hall device in conjunction with an amplifier is used to null...
Resource Type:: Masters Thesis
Full Text:: A Flux-Coupled Current Measuring System with a Bandwidth

Transient characteristics of a tuned ground-fault neutralizer system

Creator:: Chow, Chung Wei
Resource Type:: Masters Thesis
Full Text:: • . . • • • • • • • • • • • • • • • • • 57 • • LIST OF FIGURES Fig. Page 1. Fault Current Distribution and Phasor Diagram During

Direct digital speed control system for a DC motor using a minicomputer

Creator:: Evans, Donald LeRoy
Abstract:: Direct digital control is becoming quite common in the control of industrial processes. However, due to the relatively high accuracy of both analog and conventional digital systems for controlling the speed of a dc motor, there has been a reluctance to try DDC for this purpose. This thesis describes a...
Resource Type:: Masters Thesis
Full Text:: is the current trend, it is becoming easier to justify DDC for process-control appli- cations

Prediction of brushless DC drive performance considering non-sinusoidal parameter variations and asymmetrical operating conditions

Creator:: Spee, Rene
Abstract:: A highly flexible numerical simulation model for the performance prediction of brushless dc drives is presented, which is capable of investigating unbalanced and asymmetrical operating conditions as well as drives with non-ideal parameters. Numerical speed-up procedures allow for the investigation of pulse-width modulated (PWM) drives using a personal computer. Experimental...
Resource Type:: Dissertation
Full Text:: link and use a controlled rectifier as a dc source. Current magnitudes are thus effectively controlled

Determination of equivalent reactance of synchronous generators for incremental changes in load

Creator:: Kuvallis, John Nicholas and Kanzler, Harrell Walter
Resource Type:: Masters Thesis

Digital simulation of a self-excited cumulative compound direct-current generator with variable load

Creator:: Maraqa, Abdel Muti
Abstract:: This thesis develops a simulation model for a cumulative connected compound direct-current generator to varify the operation of this machine under conditions of slowly and rapidly changing loads. The application of this simulation method will contribute to more exact modeling of power system components. The accuracy gained is in the...
Resource Type:: Dissertation
Full Text:: direct-current generator with variable load AN ABSTRACT OF THE THESIS OF ABDEL MUTI MARAQA for the

ScholarsArchive@OSU

A voltage regulated SCR inverter utilizing conduction angle control

Ignitron power conversion equipments in Pacific northwest electro-chemical plants

Power transformer differential relay protection as affected by magnetization inrush current

Low level D-C detection using a photoconductive modulator

A flux-coupled current measuring system with a bandwidth from D.C. to fifty megahertz

Transient characteristics of a tuned ground-fault neutralizer system

Direct digital speed control system for a DC motor using a minicomputer

Prediction of brushless DC drive performance considering non-sinusoidal parameter variations and asymmetrical operating conditions

Determination of equivalent reactance of synchronous generators for incremental changes in load

Digital simulation of a self-excited cumulative compound direct-current generator with variable load

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