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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.
110875 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?
3728Post New Electrical Engineering Questions
What is the minimum distance to be maintained in between HT panel and LT panel and Instrument panel as per IEC and NEC standards?
why the projects getting loss?
Pl. brief about break-down maintenance of machine tool.
How can I calculate per unit (KWH) fuel (Gas/ Diesel both) consumption 1MW unit?
when it is possible kvrah lead & fundamental kwh be equal in electonic trivector meters (3 ph)
describe the A.C. Generator Testing procedure
give me applications of sequence bridges . (used in 3 phase un balanced systems)
why the name trunking bus PT
what are the differences between 'exhaust fan', 'heavy-duty exhaust fan' & 'super heavy duty exhaust fan'. what are their power ratings ?
what is the circutor?why we use it ?
How many lightning arrestors to be installed on 50MX60MX10M building and is there any formular for that?
What is the instrument to check the rotating diode fuse of alternator in running conditions?
what is meant by IGBT how they differ from tyristor ?
Why GRR starts from 60% of motor speed why not less than 60%?
What is frantic effect?
