what is the method of electric earth for the protection of low voltage electric equipment1 3284
Why do we have 110V, 230V, 415V etc. in electrical transmissions? Why not 100V, 200V,400V?4 7632
how circuit breaker work.. what is the operations taking place inside a circuit breaker when an overcurrent occurs... is it similar to fuse?
how many earthing is required for sever room?4 4109
What is GIS Substation and how it operate? where these type of substation installed?8 27238
What is difference between earth leakage relay and restricted earth fault relay ?22 33435
how to find out capacitor range?2 2979
what happens when d cexcitation given to alternator is removed while it is running or what happens when dc excitation is failed in alternator while running?10 14224
why we are calculating the capacitance between phase(conductor line)and ground in transmission line?why cant we calculate capacitance between the phase and the nuetral line?if so what is procedure.1 1346
what is the difference between VARIAC,AUTO TRANSFORMER,DIMMERSTAT.10 21814
hi all i like to know vat is power plot in control systems also i want to know abt latest trends in electrical & electronics710
if a 3phase 100kva distribution transformer , 400 v,50 hz, 4-wire system is loaded at 160 k.w mostly 1-phase Lighting & Airconditioning split a.c load what will be the net effect on the power system in terms of voltage, powerfactor, current , efficiency of xformer
What is distance between electrical panel to land ?
and gate circuit diagram,amplifier circuit diagram
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
i applied for c licence with my one year apperents trainee and i have attaced with A grade contractor company experiance that is for 14 monts experiance this document is sufeicant for c licence? pls tell why they rejected
why 15 kw motor winding resistance is low then 5 kw motor winding resistance?
What are the symptoms of a bad PG card of a drive (inverter) esp. of Yaskawa Ac Drives (inverters) G7 ?
what do w do when the output of generator is fluctuating?
What are the differences between single phase and three phase?
How should i design a 1ph & 3 ph transformer. Kindly let meknow all steps and formulaes related to design from scratch.
why the value of k is more in shell typr transformers?
how diside ct mf exmp.200/5 ct
what is the reason for indication of light in the earth lamps of main switchboard.if there is an earth why does one lamp get dim and the other two bright.
what is the differebt between ac and dc fuse?
what is a speed of rotor when we give supply to stator of 50hz and as well as rotor of 60hz of an induction motor?????