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Standards3
- 1. Type of connection used in Series/shunt field winding Cummulative Compound Aids the Flux Differential Compound Opposes the Flux Type of Field Excitation Self-Excited Separately excited DC motor Series Motor speed is not essential Shunt Motor constant speed - Charge to mass ratio Electron 1.7588x1011 C/kg Proton 9.5791x107 C/kg AC motor Synchronous motor not Self -started Induction motor Self-started Basic part of an AC motor Stator Supply voltage is fed to the winding Rotor Rotating part AC loads Current-Voltage relationship Purely Resistive in phase Purely Inductive Lags by 900 Purely Capacitive Leads by 900 TV Standard NTSC National Television Systems Committee PAL Phase Alternating Lines SECAM Sequential Color with Memory (Sequentiel Couleur Avec Memoire) Pure Test Tone From To dBm dBrn +90 dBa +85 dBrnC +90 dBmp +180 - resistivity Carbon 350 x 10-8 Ω - m Copper 1.64 x 1024 electrons / in3 Capacitor Volts Paper 1000 Electrolytic 500 Germanium 7.4 eV Mercuric oxide cell 1.35 V Alkaline cell 1.5 V Type of self excited DC generators field windings Shunt wound generator parallel Series wound generator series Compound wound generator series-parallel Type of Alternator Single Phase Alternator Lowe power application 3-pahse Alternator High power application Type of 3-phase alternator Application Wye-connected High voltage, low current Delta-connected high current, low voltage Speed control in DC motor Rheostat connection speed variation with respect to the rheostat resistance series with armature winding inversely in series to the shunt field winding directly across the series field winding inversely Sine Wave Value of other Alternating Wave forms Malicious software Type of drum winding Application Lap-winding High current Wave-winding High voltage Peak Value Vp = 1.414 (Vrms) Peak-Peak value Vp-p = 2.828 (Vrms) Ave Value Vave = .637 Vp RMS/Effective value Vrms = 0.707 Vp - Vrms Vave Symmetrical trapezoid Vrms = a+0.577 (b-a) Vp b Vave = a+b Vp 2b Square-wave Vrms = Vp √(a/b) Vave = Vp a/b Saw-tooth Vrms = 0.577 Vp Vave = 0.5 Vp Worm self replicating, no host needed Virus needs a host to replicate Trojan Horse Computer program that appears to be useful, but harmful when executed Malware Designed to infiltrate and damage computer system w/o user consent Spyware Computer software that collects personal information Adware Advertising pop-ups Type of compound generator Type of compound generator Full voltage Flat compounded = no load voltage Under compounded < no load voltage Over compounded > no load voltage Armature Power Loss Copper loss heat in armature windings Hysteresis loss molecular friction Eddy current loss power dissipation from heat