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The sodium vapor lamp is not glows when it is connected a distance of 5 meters above from gearbox, why ?
a)In a 3-phase 4-wire circuit, a circuit breaker is selected to protect the circuit whose highest fault level is 6.6 MVA. Determine the required minimum breaking capacity in kA. (Note: Covert 3-phase power in terms of kA to find answer.) b)Using the below, determine the required minimum making capacity in kA as a “peak value”. Rate breaking capacity (Icn) ka: Icn<= 1.5 Factor = 1.41 1.5
Thermal withstand capability under full short circuit conditions, in terms of number of times of occurrence of short circuit and corresponding anticipated percentage reduction in transformer life.
What current position are you holding in your current company?
what is reactive power?, why its measured in VA ? is it transient behavior of system?
concept of busbar and load dispatching..?
hello! sir i did three year of diploma in electrical (2007- 2010) and now i m a student of electrical engineering. sir can i apply for germany visa for study and part tome work over there?
please tell me when we start motor without load in star or delta connection whose current above condition,pl write formula
what is residuel magnetism. and how order lead acid batteries for 24 volt. emergency lighting system.
why we use single core 630mm2 cable for transformer secondary side
What is the meaning of Insulation H for transformers????
When color of silica gel will gets change from blue to pink from Top to bottom?
How capacitor improves pf
How to select circuit breakers rating eg. if i select a circuit breakers of capacity 40 amps DC with operating voltage 28 volts and if i what to use same circuit breakers for 300 Volts DC application what is the current rating of this circuit breakers.
Which standard we are following earthing resistance test
