What is the difference between Generator Differential Relay and Transformer Differential Relay?
2208In all the generators, the excitation supply is DC. What is the significance of DC excitation? What will happen if AC supply is given as excitation supply?
2 4892In all the generators, the excitation supply is DC. What is the significance of DC excitation? What will happen if AC supply is given as excitation supply?
8 142701.generator rated as 1000 mva,11kv .8 pf what will 0.8 pf will indicate? 1.max pf it can supply 2.min pf it can supply like this 4 options there what is answer.explain
5 139701.Why hydrogen used for cooling in generators 2.Why electrical equipment protected by ground 3.Why earthing for transmission line 4.What is rms value of half wave rectified square wave. If Rms value of actual wave 2amps.
1 3210I have 1010 KVA Generator when i run the DG set for 5 to 6 hours the couplling (couplling joint in between engine & alternator) bolts are getting loose what is the reason & what is the remedy over this??????????
7 9404What do you mean by pf of a generator? Power factor purely depends on the load (wether inductive, reactive or unity) then what does the pf mentioned on the generator nameplate means?
3 10141
What is a central pattern generator?
What is a central pattern generator (CPG)?
what is the effect of low frequency(say 48Hz) on TUrbo- Generator set when running for a prolonged period?
what is the function generator?
Hi could some one explan what is the use of the function Defination generator, And how to use the function defination generator.. Explan with the example..
How to run an integrated test scenario using Multiple Actions? How to use the QTP Step Generator?
How can you use an Oracle sequences in Informatica ? You have an Informatica sequence generator transformation also. which one is better to use?
boiler is running in rankine cycle and deisel generator is....?
I want to prepare a frequency generator. the specifications i.e. output requirements are 12V, 1-10A & frequency upto 1K to 5K. Please, inform me with proper circuit dig. & the component values.
Disavantages of document generator? How to take a print out of the steps in the Parameterized scripts?
Hello Friends I had my ONGC test today,but it was very bad.But I would give certain suggestions so that u may not face he problem which i had. Be thorough with Electrical Technology.Generators.motors stators etc.There are 5 questions on that. There were also good no.of questions from Hydraulic machine and Production technology. Then 3 from Strength of materials.And remember the dimensional quantities.
what is the criterion for selecting vector group of Transformers ? i mean how to decide vector group of Generator transformer, substation trasformer and transformer at consumer end
Why efficiency of generator is higher than motor at a particular load?
Can you tell me more about pu systems (per unit systems )calculation in large power systems? how to get the base for voltage and power in generator, transformator and transmission lines?
What is the requirement of grounding the neutral of single phase generators on load? If the neutral is not grounded, what will be the effect?