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Explain with example of functional requirements of protection relay in terms reliability, selectivity, sensitivity
WTA used cb?
What are the function of different components of servo motor?
Is phenomenon of resonance is harmfull fr the machine? if not or if yes please explain it?
A 3-PHASE TRANSFORMER IS USED TO STEP-DOWN THE VOLTAGE OF A 3-PHASE, 11KV FEEDER LINE. PER-PHASE TURNS RATIO IS 12.FOR A PRIMARY LINE CURRENT OF 20A, CALCULATE THE SECOUNDRY LINE VOLTAGE, LINE CURRENT AND OUTPUT KVA FOR FOLLOWING.A)STAR- DELTA.B)DELTA-DELTA.
How is operate breaker failure scheme in substation
EXPLAIN USE OF ROCKING ARRANGEMENT IN ELECTRIC HEATING?
What will be the impact on motor performance if a LT motor is rewound with changed motor winding data as given below:- Original winding data: total 04 wires = 02 wires of 17 SWG + 02 wires of 16.5 SWG. Changed Winding data: total 03 wires of 15.5 SWG wire size Motor rating: 160KW, 740RPM, 415V, ID FAN application. Normal Running Current = 95% of FL Current.
If we use 250A MCCB as a incomer in Control panel for a fault level of 50kA for one second ,assuming temperature rise from 85 Deg. to 100 Deg , Then what will be the Aluminium Bus-bar size for 250A MCCB? Explain in detail.
My question is abt backlog.I had dropped one subject in my second year, and completed this subject in the 3rd attempt, so how many backlogs i have got?1 or 3?plz sujjest the answer as soon as possible
what is the id1 & id2 setting in differential protection relay of CSPC?
What would cause a 240v choke that should give 110v out on a 16w lamp to gradually increase to 160v?
What is the magnetic field (coil DC ) of Turbo Expander?
What happens to a motor if it is connected in Delta connection
Explain bypass capacitor?