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what is the meaning of bus bar, in electrical panels.
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Answer Posted / ranjith
Point at which electrical power is available for
transmission.
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what is meant by flywheel and its role in retardation test
what happen if field of dc shunt motor opens? what is function of putting res. in parallel to one phase of 3 phase IM? the power supplied by 5A source in circuit is given by------Watt.
How u can give the overload setting to any motor protection relay for a HT motors with formula and Example?
Explain about retrofitting of machine tool.
what is the breaking capacity and making capacity of circuit breaker and how
In Air circuit breaker LSIG protection unit is used. Without fault in cables (2 runs 3Cx150Sq.mm Copper, 1Kv grade, XPLE armored cable IR value is more than 550Mohm @ 500V Megger) and load section Long time Overcurrent protection is triggers and trips the unit. We changed LSIG protection with new factory tested unit. Even then fault is persisting. Please suggest the possible causes
What is the need of earthing transformer for delta side of a transformer. (Think of a line section between a star/delta transformer at a grid substation and delta/star transformer at a village. An earthing transformer is there at the delta side of the star/delta transformer at grid substation). As there are no ground reference there will not be fault current if a one phase is grounded. Further L-L phase will be sensed by the primary side of star/delta transformer as a L-G fault. So why an earthing transformer is required at delta side
How do we calculate over and under frequency tolerance from generator data?
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How to calculate no of Lighning arrestors are required for protecting 50mX 50m*20m cubical building and locations of LA?
hello friends..... any one have papers or any study materials?sail ,hpcl...?
how many types are their in switchyard or substation(like D,I TYPE), what is differant between them
What is transient response?
What is the relation between frequency and motor rpm?
In a tap changing transformer where is the tap connected, is it connected in the primary side or secondary side?
