Answer / rajendra

not work star delta method in single phase motor because this method use in 10 hp to 25 hp 3 phase motor.

Answer / omarya

star delta method is not required in single phase motor
star & delta is used only three phase load.

Answer / william lobo

Well today we have DOL direct on line starters for upto 100 hp and more too.
So Star Delta for 1 ph motor does not arise. Question itself is wrong. No practical question.

Answer / guest

Star-Delta motor starting method is for reducing the
starting current by dividing line current with 3 square
that is considered in 3 phase only, and also most of single
phase motors are small motor having small starting current
so it is no point to reduce the starting current.

How we can test the Smoke Detectors????

4 Answers   Emerson,

---

sourse is 66 KV / 350 MVA, transfarmer is 1000 KVA 6.6 / 0.415 kv, iF fault is 28.75 MVA on 0.415 KV Bus then calculat the Transfarmer Impidance

0 Answers  

---

what are the functions & ratings of panels mentioned below: 1. Main LT Panel(MLTP) 2. Motor Control Centre(MCC) 3.Feeder pillars 4.Busducts

1 Answers   Aurobindo,

---

why the carbon brushes are used heat created rotating parts in eiectricity

1 Answers  

---

why they were using TRIAC instead relay in some controllers and what is the advantages.

0 Answers  

---

what is the MNA in case of d.c. machin? whaty is the importance of it? hoe it affect the brush position?

2 Answers   TATA,

---

1. Design a counter which counts 0, 4, 8, 2, 6, and repeats using: 1.a using JK flip flops 1.b using T flip flops 1.c using D flip flops

0 Answers  

---

What is PEC??Applications........

0 Answers   Emerson,

---

In an electrical conductor, if current flows because of flow of electrons, then why not the conductor gets thinner day by day???

1 Answers  

---

transformers parts & function of each parts

25 Answers   Amara Raja, Bhutan Ferro Alloys Limited, Breather, Electrical, Electrical Tech, ERDA, GVK, Juniper Networks, Matrix, Mechanical, NFL, Oracle, Pyramid Plastics, RPPL, RRB, Siemens, TCS, Tulip Silk Mills,

---

what are symmetrical and non symmetrical components in electrical installation.

0 Answers  

---

all details of DG UPS HVAC

0 Answers  

---