Interested to Buy Any Domain ? << Click Here >> for more details...
A 10 MVA, 66KV, 50Hz, Y-connected 3-phase alternator has synchronous reactance of 0.635 Ù. It is working at full load at 0.8 lagging p.f. condition. Find torque angle, neglect armature resistance.
2593With a phasor diagram show the effect of increasing the field current of a generator supplying a constant real power and connected to a grid system.
1976Draw the wave shape of armature current in a generator subjected to a sudden three phase short- circuit at its terminals. Define various reactance of generator from this wave shape.
2225A 400 V, 50 Hz, Δ connected synchronous generator has a field reactance of 0.1 Ω and armature resistance of 0.015 Ω. At full load, the machine supplies 1200 A at 0.8 pf lagging. Under full-load conditions, the friction and windage losses are 40 KW and the core losses are 30 KW. What is the machine’s overall efficiency? Ignore any field circuit losses.
1920A generating system will have a total capacity of 300 MW. Find the probable forced outage when the capacity is supplied by two 150 MW units. The operating probability of all units is P=0.98 and forced outage probability rate Q =0.02 .
2637A 500 V shunt motor runs at its normal speed of 250rpm when the armature current is 200A. The resistance of the armature is 0.12 Ω. Calculate the speed when a resistance is inserted in the field reducing the shunt field to 80% of normal value and the armature current is 100A.
2512How do the synchronizing lamps indicate the correctness of phase sequence between existing and incoming alternators?
2181Post New VECL Interview Questions
How to create a new table from existing table in postgresql?
Which function should be used to free the memory allocated by calloc()?
ther r 2 tables OTTABLE & SALTABLE, add the otamt from OTTABLE to empsal of SALTABLE if eid is matched else add the unmatched from OTTABLE to SALTABLE
What is the use of css3?
Why is typescript used in angular?
What is the difference between reactjs and nodejs?
What is graph in tensorflow ?
How do I connect to a windows server core?
what are the differences between Generic server and application server in WebSphere environment?
What a pipe?
what is the advaantage of each user having its own copy of the shell?
What are the specifications of the scr ?
What does SPA (Single page application) mean?
What features does the ansible tower provide?
How binding works in mxml components in flex?
