ELECTRICAL ENGINEERING STUDY MATERIALS

LOSS LESS HIGH POWER TRANSMISSION THROUGH "GAS INSULATED TRANSMISSION LINE (GIL). CORONA EFFECT ON THE  POWER SYSTEM. POWER SYSTEM LOSS MINIMIZATION THE EFFECTS OF RENEWABLE ENERGY SOURCES TO THE POWER SYSTEM. SUPERCONDUCTING FAULT CURRENT LIMITER (SFCL)  OPTICAL CURRENT TRANSFORMER POWER LINE COMMUNICATION ULTRASONIC MOTORS DISTRIBUTION GENERATION: A POWERFUL APPROACH FOR THE FUTURE BIOMASS SUPPORTED SOLAR THERMAL POWER PLANT INSULATOR CONDITION ANALYSIS FOR OVERHEAD DISTRIBUTION LINES. REMOTE DETECTION OF ILLEGAL ELECTRICITY USAGE EMPLOYING SMART ENERGY METER - A CURRENT BASED TECHNIQUE FLOATING SOLAR POWER STATION UNDER WATER WIND MILL.  POWER TRADING IN INDIA. TRACTION MARINE ELECTRIC PROPULSION OCEAN THERMAL ENERGY CONVERSION SYSTEM SMART GRID COMBINATION OF SOLAR AND WIND ENERGY CONVERSION SYSTEM FOR A SMART GRID. VERTICAL AXIS WIND TURBINES. ANALYSIS OF THE EFFECTS OF DISTRIBUTION GENERATION ON POWER...

When an alternator is subjected to a varying load, the voltage at the armature terminals varies to certain extent, the amount of this variation determines the regulation of the machine. Phasor diagram of an alternator at lagging power factor is as follows. Regulation is found by the following expression Where V is the terminal voltage and E 0   is the induced voltage. E 0 is estimated by the following methods. 1) EMF Method 2) MMF Method 3) ZPF Method 4) ASA Method 5) Slip Test 1) EMF method (Synchronous impedance method) Conduct tests to find I) OCC ( up to  125% of rated voltage)   II) SCC (for rated current)             III) Armature resistance (per phase) V = rated phase voltage Isc = short circuit current corresponding to the field current producing the rated voltage Synchronous impedance per ...

RPC theory The beer mug analogy is useful to understand the BEER MUG ANALOGY theory of reactive power compensation. If the mug capacity is the apparent power (kVA) that we can transmit through a system, then the foam is the reactive power (kvar) and the beer is the real power (kW). Power factor = beer (kW) divided by mug capacity (kVA) or the efficiency that we can achieve of beer volume to mug capacity            If we use capacitors to provide the foam (kvar) when we drink the beer, then we free up mug capacity so you don't have to buy a bigger mug and/or so you can pay less for your beer. Most loads and delivery apparatus (e.g., lines and transformers) are inductive in nature and operate at a lagging power factor. They need the reactive power component, but that's not to say, that we need to constrain the power system by transmitting the reactive power through the system. The benefits of reactive power compensation in the transmi...