In a typical DC micro grid, hybrid storage system is a combination of Lead acid battery and Lithium ion battery Lead acid battery and ultra capacitor / super capacitor None of these Lead acid battery and Capacitor TRUE ANSWER : ? YOUR ANSWER : ?
In a power network, 400 kV is recorded at a 415 kV bus. A 50 MVAR, 415 kV shunt reactor is connected to the bus. What is the reactive power absorbed by the shunt reactor? 56.45 MVAR 46.45 MVAR 76.45 MVAR 66.45 MVAR TRUE ANSWER : ? YOUR ANSWER : ?
In transformer, bushing failure occurs due to<br/>(i) transformer vibrations<br/>(ii) dielectric losses<br/>(ii) partial discharge (i) and (ii) only (i) and (iii) only (ii) and (iii) only (i), (ii) and (iii) TRUE ANSWER : ? YOUR ANSWER : ?
The operating time of an inverse definite minimum time (IDMT) overcurrent relay is ____ proportional to the plug-setting multiplier (PSM) and____proportional to the time-multiplier setting (TMS). directly, directly inversely, inversely directly, inversely inversely, directly TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is not a Font style in Microsoft Word? Bold Italic Superscript Regular TRUE ANSWER : ? YOUR ANSWER : ?
હુ ગીત ગાઈશ' ને કર્મણીમાં ફેરવો. ગીતને હુ જ ગાઇશ ગીતને હુ ગાઈશ હુ ગીતને ગાઈશ મારાથી ગીત ગવાશે TRUE ANSWER : ? YOUR ANSWER : ?
The magnitude of the generator earth-fault current is limited by inserting suitable resistance in neutral grounding circuit using higher rating CTs inserting the stabilizing resistance in series with the relay controlling field exciter TRUE ANSWER : ? YOUR ANSWER : ?
The miniature circuit breaker (MCB) with Class D trip characteristics trips instantaneously when the current flowing through it reaches ____ the rated current. between 5 to 10 times between 2 to 3 times between 3 to 5 times between 10 to 20 times TRUE ANSWER : ? YOUR ANSWER : ?
A three-phase, 12 kV, 50 Hz and 300 kW load is operating at 0.8 pf lag. If the pf is to be improved to unity, using star connected capacitor, the per phase value of the reactive VAR required is: 75 kVAR 25 kVAR 100 kVAR 50 kVAR TRUE ANSWER : ? YOUR ANSWER : ?
In transformer, a Sweep Frequency Response Analysis (SFRA) test will help detect ____ Moisture in the windings Age of the insulation Movement / damage to internal components Aging by-products TRUE ANSWER : ? YOUR ANSWER : ?