Answer / arockia doss

Reasons Behind :

1. Loose Connection
2. Three phase cut into two phase
3. Winding Failure
4. Mechanical Damage/Overlaod
5. Higher Voltage/Frequency

If its so ,Breaker should get trip. If not it will damage
the motor.

Answer / pillay

that means the motor is finding it harder to maintain
the speed. it could be due to so many reasons as already said
by DASS and VENKAT.
What happens is if any of the motor protective devices dont
trigger the motor to stop than it will continue to run
until the windings give way due to overheat and finally insulation breakdown which is commonly known as burnt.

Answer / venkatesh sk

moto should be terminal loose& connetion&load more &
frquency very&motor capacity low& voltage low

Answer / gagan kumptar gua

when a motor take high current the wiring of the winding
will be burnt becouse H is proposnal to square of
current.it happens due to loose connection or over load and
change in frequency of voltage.

When lag/lead/lag-lead compensation is employed?

1 Answers  

---

what is resver in electrical enginnering with answer

1 Answers  

---

examples of resistive inductive and capacitive load

1 Answers  

---

Technical equations

1 Answers   ME,

---

difrent between vcb acb sf6 and mccb breakers

2 Answers   DMRC,

---

explain how the power is distributed from a power plant to a consumer.explain step wise in detail

1 Answers  

---

in house wiring when two wires are same colour coding and there is no any connection one end how to find which wire is earthing wire

1 Answers  

---

How do you commission a power Transformer?

1 Answers   EEI,

---

we are using three transformer 33000/430 vac for three separet block.all three transformer have three LT panel separetly. can be Interconnected all three panel through bus coupler. this is permissable or not by state electricity board.

4 Answers   Piramal Healthcare,

---

WHY HUMMING SOUND OCCURED IN HT TRANSMMISSION LINES?

6 Answers  

---

Whether should be the oil level in OCTC transfomer? It should be upto winding immersed completely or should be upto tap changer s/w? How it will affect the performance of the transformer. Rating may be 33KVA

1 Answers  

---

What is the phase relationship between the primary and secondary voltages of a transformer?

1 Answers  

---