What is load and its type?
Draw a neat diagram of 1φ half wave controlled converter with RL load. Give its operation.
What is inductor and its formula?
What is pitch and its formula?
What is slip and its formula?
What is galvanometer and its formula?
Define electrical power and give its formula.
What is gauss law and its application formula?
What is Gauss law and its application formula?
What is electric flux density and its formula?
What is flux density and its formula?
What is vector and its formula?
What is resistance and its formula?
What is voltage divider and its formula?
What is capacitor and its formula?
What is the formula for load factor?
What is load formula?
What is its dimensional formula?
Define synchronous reactance. State its formula.
A motor has to exert power starting from zero and rising uniformly to 150 HP in 8 mins after which it works at constant power of 100 HP for 5 mins. The motor remains on no load for next 5 mins. The cycle again starts and repeats indefinitely. Determine suitable size of motor.
What is the purpose of a load bank in electrical system testing and commissioning?
What is the function of a load shedding scheme based on voltage and frequency measurements?
There are a Transformer and an induction machine. Those two have the same supply. For which device the load current will be maximum? And why?
What is the difference between output impedance and load impedance?
What is the relationship between characteristic impedance and load impedance?
What is the difference between impedance and load impedance?
What is the relationship between the line voltage and the phase voltage in a delta connected load?
What is the difference between star connected load and delta connected load?
What is load line and Q point?
Plot the chronological load curve and load duration curve. Find the load factor of the plant and energy supplied by the plant in 24 hours.
Explain how load curves help in the selection of size and number of generating units.
Classify the hydro-electric plants according to the head and load basis.
Draw single phase full wave mid-point converter for inductive load. Draw input and output waveforms for it.
Explain MCB and ELCB with connection diagram supplying single phase load.
A 500kVA distribution transformer having copper and iron losses of 5kW and 3kW respectively on full load. The transformer is loaded as shown below: Loading (kW) Power Factor (Lag) No. of hours 400 0.8 06 300 0.75 12 100 0.8 03 No load - 03 Calculate the all-day efficiency.
A 3 phase line of 4 km length delivers 4000 kW at a p.f of 0.8 lagging to a load the resistance and reactance per km of each conductor are 0.2 Ω and 0.5 Ω respectively if the voltage at the supply end is maintained at 11 kV. Calculate the received end voltage and efficiency of line.
Illustrate the load sharing and isolating technique in transformer to predict energy efficiency.
An industrial consumer charged with the scheduled tariff of Rs.250 /kVA per month for maximum demand and 150 paisa per unit consumed for load factor of 60% and 80%. Find overall cost per unit at i) unity P.F. ii) 0.9 P.F. consider maximum demand of 50 kVA.
Make use of load factor and maximum demand tariff to minimize electrical consumption of electrical installation.
Illustrate Energy conservation in motor by load matching and operating in star mode.
Explain the relation of V2 and I2 based on the load connected to the transformer.
State Norton’s theorem and find the current using Norton’s theorem through a load.
A 3 φ I.M. has synchronous speed of 250rpm and 4% slip at full load. The rotor has a resistance of 0.02Ω/ph and stand still reactance of 0.15Ω/ph. Calculate i) The speed at which max torque is developed. ii) The ratio of maximum to F. L. torque. iii) The ratio of maximum to starting torque.
A plant consists of two 10 MVA generators of reactance 18% each and two 5 MVA generators of 12% each. All are connected to bus bar to supply a load through three step up transformers of 8 MVA each having reactance of 8%. Determine fault MVA on HV side of any one transformer.
How do smart grids support load forecasting and management?
What is load line and q point?
What is Q point and load line?
What is encoding and its types?
What is microcontroller and its features?
What is a multiplexer and its application?
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