Answer / srinivasa rao talasila

Star connected or star running designed motor winding
resistance is some what high compared to delta running
designed motor.

Exambple 5.5KW star designed motor is having a resistance
of 1.2 ohams,same in delta is 0.45 ohams like that

Not exactly the same but there is a difference in
resistance.

Answer / k.prakashchandra

If it is LT motor and 3 wires are coming out, it is delta
connected . If there are 6 wires it is neither delta nor
star ,which is decided by starter which connects windings in
star at starting and then in delta afterwards.

Answer / gunasekaran

for LT motor if we want more power output it should be delta.for HT motor mostly it should be star connected.some special purpose motor will be delta not all in HT.

Answer / goutam roy

In case of star connection, you can have 4nos. Of wire. 3 wires for 3 phases and other for neutral wire (very important for protection) in case of del. Connection you can have 3nos. Of wire. (This connection is very important for arresting harmonic f)

Answer / surender k

Motor star/delta connection = feed by two cable of suitable
core & size.
Motor delta connection = feed by one cable of suitable core
& size.

or

Its application area and load parameters like water
lifting,air-fan in large buildings.

How to calculate percentage impedance of a power transformer.

1 Answers  

---

what is the knee point voltage in current transformer

2 Answers  

---

if 12v battery get discharged for 2 months after if we put charge it will charge again?how much time it will take to charge?

0 Answers  

---

What is the fuction of UV & how it works in circut breakers? is it one type of relay?

4 Answers  

---

Which device is used for the source of emission of electrons in a crt?

0 Answers  

---

---

When motor stater and roter air gap do big then what will moter.

3 Answers   Intas,

---

How we can calculate what type of supply we need for an example sometimes we take 11 KV and sometime 33KV from EB ?

4 Answers  

---

why rating in KVA and KVAR?

4 Answers  

---

roles of owslaw explain?

3 Answers   BSNL,

---

how much winding resistance of 0.75kw to 12.5kw 3ph sqwiralcage induction motor?

0 Answers  

---

Dear all, Can anybody tell me that how to choose CT for a specific load? I have a 200kw induction motor, which ratio CT should be installed? Is there a formula or calculation that determines the CT ratio for a load? Regards.

2 Answers  

---

Transformer diagram mention each parts ?

0 Answers  

---