Un-Answered Questions { Electrical Engineering }

What is mean by hot and cold loop testing? What is the difference between them?

68


What are the different modes of plc processor?

88


What is mean by hot and cold loop testing?

80


What is the difference between hot and cold loop testing?

72


L.A. (Lightening Arrester) is located at a place from where transmission line enters the transmitting substation. So L.A. (Lightening Arrester) is the first equipments which has to encounter with lightening, high voltage surges and switching surges. It has to absorb energy of lightening, high voltage surges, and switching surges. L.A. (Lightening Arrester) is made up of layers of semiconductors. If these layers can not tolerate energy released by lightening, high voltage surges, and switching surges the L.A. (Lightening Arrester) blasts.

64





how the aircraft outer body and inner body is separated ?

52


how the inner and outer body is separated in aircrafts?

51


What happens to a motor if it is connected in Delta connection

49


75 kw motor take 45 amp in no load delta in star 10 amp but in load it will take 160 amp but IR velue of winding above 500 at 1kw ph to earth and ph to ph. what problem it should be?

1822


what is the range of maximum DOL and SDS can be use for pump and fan application

61





What is the difference between DOL starter and star delta starter

54


electrical knowelge

49


What is resistance reading of earth copper rod with grid and without grid?

38


How many gap between finger contact in a.c.b. and v.cb.?

157


Is there any guideline say about display of earthing value near to earth pit

82