Answer / raghavendran r

Stalling is a condition when the motor stops rotating.This
condition occurs when the load torque is greater than the
motor shaft torque ie break down torque condition.In this
condition the motor draws maximum current but the motor do
not rotate.The current is called as Stalling current.

Answer / ali hassan mirza

Stalling of the motor refers to a condition, where the motor is unable to rotate. This condition can be caused either due to any obstruction in the load or due to any problem with the motor such as bearing seizure, etc.

This condition is also known as locked rotor.


When the speed of the rotor decreases to a very low value or stops completely due to stalling, the slip of the induction motor increases. This causes higher voltage and consequently higher current to be induced in the rotor windings.

The stator currents also increase. The equivalent of the motor stalled condition is that of a transformer whose secondary is short circuited.

The high current drawn will cause damage to the windings and cause the rotor to heat up.

Stall protection devices work by monitoring the motor current and the speed. If the motor draws higher current at a preset low speed, the relay is activated

In a three-phase full converter, every SCR conducts for a.60deg. b. 120deg. C.180deg. d.90deg

3 Answers  

---

An AC coil to give DC supply whats happen in the coil.what type of problem are create.

2 Answers  

---

HOW TO CHECK THE VECTOR GROUP OF A TRANSFORMER YD11?

0 Answers   Siemens,

---

Total power capacity of india at present

8 Answers   Bhel,

---

wath is this mining of dg

2 Answers   Nokia,

---

---

what is the function of commutator in dc motor?

10 Answers   CTS,

---

What are the possible causes if load is not same on all the three phases

4 Answers  

---

How Calculet The UPS AH In Load

0 Answers  

---

what is the VVVFD and?

4 Answers  

---

what are the specifications for Dc cables of higher rating

1 Answers   Reliance,

---

There are a trformer and an induction machine. Those two have the same supply. For which device the load current will be maximum? And why?

0 Answers  

---

Where voltage are high and current to be interrupted is low the breaker preferred is:

0 Answers  

---