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How to calculate the lighting load & power load requirement by knowing area of building/room. Is there any thumb rule?
3 19232Electricty is generated at around 16kV, then step up to 220kV for transmission then steped down to power transformers then DTs and then through the LT n/w it reaches the consumer end. At the consumer end 230V supply is required. So, why is electricity not generated directly at 230V and transmitted?
4 7745What is Load commutation and how it is done?Cite some example where this type of commutation is used
NTPC,
2 29190for 8 mva 33/11 kv transformer what will be the setting of differential relay on which it trip & what is the HF setting in this relay
2 4773electricity requires a medium to flow and it cannot flow through air. so how does lightning come to earth through air without any medium?
3 6128wat is the advantage of increse in frequency?how the powersupply range decreses as the frequency increses?like in america,it uses 110 ac and 60 hz?
4 6692Post New Electrical Engineering Questions
what is difference between 2 pole structure and 4 pole structure in transformer yard
Why is the frequency not changed during transformation of electrical energy in a transformer?
ROC converges if poles and zeros lie inside a. Origion b. Z=1
types of central Air conditioner plant?
Mr. mohh sahid m not satisfied for ur answer to the que weather the size of transformer increases or decreases withchange in fr for more detail go to the answer given by me
How does PLC work for sychronising of Two or more DG sets?
How do i perform grounding of star point of Genset (400V) for making connection with step up transformer of DELTA-DELTA (400V to 20KV) ? while Genset itself has its own neutral and grounding bus bar inside genset breaker box whereas we have another neutral and grounding busbar in synchronizing panel next to genset at maximum distance of 6meter, would someone pls advice if we can only perform neutral grounding in synchronizing panel or should we ground neutral on both places inside genset breaker box and synchronizing panel.
what about SAP/MRP regarding manufacturing of electric motors and all drives?
What is Annunciation?
1.what is the difference between transformer differential and busbar differential.2)why we are using 2 slope for trafo diif and 1 slope for busbar diff.3)what is the purpose of metrosil and stabilizing resistor in high impedance relay circuit.4)how metrosil reduce the peak volage.5)what is the funtion of stabilizing resistor
I have 4 DG set with 1500KVA rating. system breakers are 11KV & alternator are 415 Volts. Between alternator & breaker one stepup transformer used. i want to Know what is max. resistance for body earthing & 415 & 11KV V Neuteal earthing. my fault current is 14 times for 2 sec.
In a voltage-controlled current source A A current booster is never used B The load is always floated C A stiff current source drives the load D The load current equals Isc
which mm cable should be used for 1.hp immersible pump motor for the distance of 330 metres?
how does WTI work ?
PLZ EXPLAIN THE INTERLOCKING AND CONTROLLING OF CONTACTORS????HOW CAN I DO THAT?
