Answer / sujeet kumar

well i think it is only zero for a balance load in case of
balance load all current are in 120 deg so resultant is zero
but in case of un balance load it will not be zero

Answer / anshul kumar goyal

According to KCL
Cuurent coming to the point+current going away from the
point=0
Therotically same rule applies in star connection only if
load is balanced, but practically current at neutral point
is not 0 as .
To make the neutral current 0, earthing is provided in the
transformer commissioned at DT through a bush.
This earthing provides minimum resistance path for the
accessive current.

Answer / harpreet singh

due to 120 degree angle resultant is zero.so neytral ponit
having resultant is zero

Answer / niranajn

Because neutral in a star is the common connection of all
the three windings which is at zero potential

what is the voltages using in movie theaters??? why ??why not other??

0 Answers   Lanco,

---

what is self capacitance of inductor

0 Answers   Bhel,

---

What is mean by ideal infinite bus? Why it is required to consider in fault short circuit calculations?

1 Answers  

---

i am BSEE student, my project study is to synchronize the generator of an hospital, it have a one 313KVA standby-power diesel gen.,and three 100kva transformer.The generator system is operated manually and no ATS or UPS. one more new building is being build so the transformer will be upgrade to a higher vale. 1)how i can connect the new gen. to the old gen. and to the synchronize panel? 2)what is the new gen. to be buy?(rating, etc.) These is my title: To synchronize the generator system of the ____ Hospital. Anyone have a good title? Thanks.

1 Answers  

---

why pure sine wave inverter used for desktop ?

1 Answers  

---

What do you mean by cold shinkable cable joint.How it is done.

0 Answers  

---

Show formula which gives full load current 4.8 amps of a 3 HP motor and 27 amps of a 20 HP motor having 3 phase 460 volts, 0.8 Pf.

2 Answers  

---

As i want some model question paper in basic computer science and history please send me immediately sir

0 Answers   TNPSC Tamil Nadu Public Service Commission,

---

how to check regenerative load in drived motor

0 Answers   Hindustan Unilever Limited, NHPC,

---

describe the constructional features of an auto transformer and its principle operation

0 Answers  

---

Why the Transformer connection is changing in different transformer?(Like Star & Delta,Delta & Delta,Star & Star,Delta Star) From that connection where it is used?

2 Answers  

---

what is use of reactive power in ac ckt.

2 Answers  

---