Answer Posted / ravi

In ac induction motor it take starting current around 7 times the full load current. The reason is during starting when we applied a voltage to stator it produce a rotating magnetic field which is rotating with its synchronous speed. The rotor speed is zero and slip is 100% so a large amount of magnectic field cuts the rotor surface and produce heavy current to flow from its and when the rotor catch its speed the amount of field cutting the rotor reduce and slip is also low and current become normal.

why core is useful for a transformer ?and also in its operation ?

2139

---

What are the temperature elements?

1293

---

what is the cause of voltage dipp or swell in the transmission lines?

2151

---

Why wind turbines wheels rotate constantly

1099

---

What the difference between three phase contactor (coil 110vac) & three phase SSR (control voltage 110Vac)? May I use contactor in place of SSR?

2200

---

how to introduce yourself

2075

---

what types of cable used in underground coal mining?

1524

---

what is the range of maximum DOL and SDS can be use for pump and fan application

1161

---

what are the protecyion of transformer & generators

2027

---

Write the force balance equation of m ideal mass element.

1306

---

sir i have a car stereo system and there is jack on him so can u tell me a way to find out their power terminals on the jack or on the circuit board"

2097

---

I am apply the AAI. So i want electrical sample question paper in technical with answer my id is vijayjobsmart@gmail.com

2746

---

To make a basic instrumentation amplifier, it takes A One op-amp with a certain feedback arrangement B Two op-amp and seven resistors C Three op-amps and seven capacitors D Three op-amps and seven resistors

2020

---

what is the effect of earth on capacitance in 3-phase and 1- phase transmission line?

2428

---

Why is negative feedback invariably preferred in closed loop system?

2369

---