Relationship between line current and phase current, line voltage and phase voltage in tamil

Relationship between line current and phase current, line voltage and phase voltage in a delta connected system.
In delta connection, the three windings are joined in series to form a closed mesh as shown in fig. If the system is balanced then sum of the three voltages around the closed mesh is zero. It has no common point.
Line Voltage and Phase Voltage:
In delta connection, Line voltage is equal to phase voltage.
VRY = VYB = VBR = VL = Line Voltage VRN = VYN = VBN = Vph = Phase Voltage Line Voltage = Phase Voltage.
VL = Vph
Line Current and Phase Current:
The current in any line is equal to the phasor difference between the potentials of currents in the two phases attached to that lines.
Advantages of star connection:
i) In star connection, phase voltage Vph=Vl/√3. Hence a star connected alternator will require less number of turns than a ∆ - connected alternator for the same line voltage.
ii) For the same line voltage, a star connected alternator requires less insulation than a delta connected alternator
iii) In star connection, we can get 3-phase 4-wire system. This permits to use two voltages viz., phase voltages as well as line voltages.
iv) Single phase loads can be connected between any one line and neutral wire while the 3-phase loads can be put across the three lines. Such flexibility is not available in ∆ - connection. v) In star connection, the neutral point can be earthed.
Advantages of delta connection:
1. Most of 3- phase induction motors are delta connected.
2. Delta connection is most suitable for rotary convertors.
3. High Reliability
Thank You for watching

[@yogiwaran5720]

Sir 8yrs before I'm see this video means definitely I'm understand the circuit theory easily sir... Thanq so much sir... Its very use full every one...

[@Madhavan-sf2ux]

Easily understandable sir. super.

[@Moorthi6260]

You are really a great teacher sir

[@anbuagm2387]

Really superb class sir ....

[@sathiyaseelanm905]

Semma sir

[@jinshadvk6319]

Super class sir

[@shakthisaravanan26]

We are giving phase voltage to each loads but how the R phase current go through y phase load....

[@seenua686]

Cos pi epadi vanthathuuu sir...

[@Dinesh-dq5yb]

Sir 3phase la 440V na appo 440/3 yaa appo oru wier la 146 V pogumaaa

[@Dinesh-dq5yb]

Am I right ?

[@NithyaSri34653]

I am fail...this exam😢😢😢😢

[@EEEVIDS]

So sorry Try again Best of luck

[@raghulrao2227]

Entha ooru sir Neenga and ur contact number