Calendar: 1925-1926 Page 225

224 FACULTY OF ENGINEERING and railway motors for continuous and alternating current charac- teristics rating and selection to satisfy given conditions approximate calculations connected therewith-Control of tramway and railway motors-Electric braking including regenerative methods-Disposition of motors on tramcars locomotives and motor coaches transmission of power from motor to driving wheels-Auxiliary electrical equipment for tramcars locomotives and motor coaches-Traction sub-stations special features-Electric lighting of trains-Methods of electric signalling on tramways and railways-Electric battery vehicles-Petrol electric vehicles Fee -£25 4s the Course Ze-Electrical Measurements and Measuring Instruments Two lectures per week Laboratory Winter Session -One half-day per week -Summer Term -Two half-days per week Electrical Units and Standards -Elements of Electrostatic and Electromagnetic Theories-Calculation of electrostatic capacity of systems of charged conductors magnetic field strength due to systems of currents self and mutual inductance of coils-Deriva- tion of the electrostatic and electromagnetic units and their dimensions-International units and standards-Absolute measure- ment of the International ampere and ohm-Standard cells-Standards of luminous flux candle power and illumination Alternating Current Theory -Symbolic vector methods and complex quantities and their application to practical cases polyphase circuits and alternating current networks-Harmonics and single phase and polyphase circuits-Eddy current losses in conductors- Properties of rotating fields-Simple cases of transient phenomena Methods of Electrical Measurement -Theory and practice of modern test-room methods for the measurement of electrical and magnetic quantities-Theory of galvanometers ballistic tests fluxmeters electrometers continuous current and alternating current potentio- meters standard dynamometer wattmeters and electrostatic watt- meters-The Wheatstone bridge including precision modifications- Measurements of high and low resistance-Alternating current bridge measurements of effective resistance and reactance Detectors including vibration galvanometers errors at high frequencies- Frequency measurements Oscillographs for high and low frequencies -Measurements of magnetic properties of materials-Iron loss measurements by wattmeter and bridge methods-Measurements of dielectric properties-Measurements of luminous flux candle power and illumination-Electrical methods of measuring temperature