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To measure insulation resistance of 11KV cable between core & armour, what should be the test voltage & duration?
4 14865I have draw the 350A DC current, so what is the size of cable i can use? Give me the answer with formula
1 4520Sir, I have applied for the of Assistant.engineer of NPDCL. please send me all AP TRANSCO AND JENCO solved papers of previous exams . I requested send me the papers to my id as soon as possible (rajanikanth_peddi@yahoo.co.in) (This is very urgent) Thank You,
2949WHAT IS MEANT BY vfd(VARIABLE FREQUENCY DRIVE )HOW CAN WE APPLY VFD TO MOTOR ? I WANT FULL DETAIL IF ANYBODY KNOW THE WEBSITE FOR THAT PLZ SEND .THANK U
2 7449Any one Give me formula for to increse the power factor, 0.8 to 0.95, How much the KVAr Required
9 13581A heater capacity is 3.0 KW on 415V . if supply voltage is 380Volt . what is heater capacity on 380volt . and how calculate and give formulas . Prakash veer singh Roto power Engg.
5 11537Post New Electrical Engineering Questions
Why we are using only Dyn11 tranformer in distribution system but not using a Dyn1 in distributing system?why not and advantage and disadvantage in both
What are electric motors?
A 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.
Why colled 440V to 3-phase supply.
High voltage test procedure of in swgr board. why should measure millivolt drop on testing time?
Let me know that how i calculate the alternator sub tranciant reactance and tranciant reactance.
what do you mean by class PS CT and what are technical details needed for calculating it?
what is the difference b/w ATS and HTS?
When calculating the speed of a rotor required for a particular frequency of synchronous generator we use the equation 60f/p Is this p is the number of pole pairs of rotor & do we consider the number of pole pairs in the stator is 1?
how much leakage current is allowed in MC61A L&T make relay?
What is magneto on a gas generator. how it functions. its out put is d.c or a.c. how it can be checked for correct functioning
Instrument connected to a single phase supply
What will be the voltage impact on secondary side of two transformers with different vector groups when both voltages are compared.
Generation of voltage for each phase are same of a turbogenerator.Although the short circuit current flow when two phase of turbogenerator are shorted(where current can't flow without potential difference),why?
What is meant by system?
