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Topic :: Generator
What the reson for frequant instantaneous ground over current fault in our sync. Generator... 15 triping in 24 hr...
1 3124if field breaker of generator is closed prior to its rated speed on a power generating unit. what will be the effect on generator, unit transformer and starting transformer.
1750how we could know that generator running anti clockwise with seeing the rotating direction of prime mover or engine
1 2290With 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.
VECL,
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.
VECL,
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.
VECL,
1918how to calculate differential current when we testing differential relay..suppose we have 1000kw generator,630amp VCB,what value we should put /inject so that relay trip the VCB? PLLZ justify ur comment
1575After synchronizing the running generator with grid, the avr getting tripped and the generator breaker also oettong tripped, before tripping the avr the pf meter of generator is showing leading pf please kindly give a suggestion to rectify this problem.
2 3340
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?
