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What it the purpose of parallel phasing transfomers??
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What are the types of windings present in the ceiling fan? What winding will be effective first when we started the fan?What are the resistance and inductance ratios comparatively at the initial speed and full speed of the fan?
why do motors burn out? I understand why adding parallel loads to a power source means more current moves through the circuit, and can destroy circuit elements by overheating. What about when you have a vaccuum cleaner intake flush against a floor, a room fan sitting directly against a wall, or a power drill trying to drill through something too hard?
what is the difference between the characteristics of two different phase bushing of any transformer
what material is used in capaciter
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 much leakage current is allowed in MC61A L&T make relay?
plz send me the placement interview question and answers of whizchip(technical and apttitude)..i have an interview in next.
What is the method to solve circuit using source transformation?
how many joint can done in HT line and what is life of the joint
If 100 KAV USP dedicated earth got disconnect / Cut. What will happen at load.
Explain Creepage Distance of Insulator
1.what is mean by 8/20 micro sec waveshape
234 MVA Generator 3 phase Short circuit current Values required? Gen set Rating-234 MVA, Gen Voltage-18kv, PF;0.8, Xdv:23.5 %, Transformer Rating-18/380KV, 680MVA,Yndd1 two winding, Step up TR, ZT:35.50 %,X/R 4.33 Gen CB Position, CB open ,Disconnected open, Generator Running Voltage 18 Kv, Bi mistakes generator side earth switch Closed during that time short circuit current level in 3 Phase required, and how to test on site 234MVA Generator Short circuit current,
What is the different between digital phase converter and ordinary phase converter?
How to do maintenance of transformer feeder.
