Answer / kj

If due to age or exposure to moisture have caused the
insulation to be lower than normal it can be fixed in most
cases.

The process is to use a solvent which does not harm the
varnish to wash the windings of all dirt. Next bake the
windings in an oven to dry out any moisture. Next
revarnicsh the windings.

Answer / saurabh awasthi

Give 24 V or 110 V DC supply to motor (which is safe for moyor winding) and after few hours IR will improve..

What is the intent of short circuit studies?

3 Answers  

---

what is the importance of neutral in elctrical system?

4 Answers   IOCL, Kharafi National,

---

dear all, can any body explain that how to select an induction motor for a specific mechanical load(inertia). is there any formula or calculation then please give me. i shell be very thankful to all of you. Thank,s and Rgard,s.

1 Answers  

---

What are the necessary solutions needed to be carried out on a malfunctioned earthing mechanism of a VACUUM CIRCUIT BREAKER.(TAMCO)

0 Answers  

---

DEAR ALL I have motors ( 10 units )each one is 90kw 380V 50 HZ 1000rpm but new local pwer is 220v 60 hz requierd rpm should be 1000 pleas what the beast solution is used frequncy converter or rewinding all motos or chang all motors thanks

6 Answers   GE,

---

---

how to carry out Magnetizing Current Test on Distribution transformer and what purpose we are doing this test.

1 Answers   CPCL,

---

how to decide the capacity of accl

0 Answers  

---

IT IS DESIRABLE THAT THE INCOMING MACHINE SHOULD BE A LITTLE FAST AT THE TIME OF SYNCHRONIZING.EXPLAIN?

1 Answers  

---

in electric lamp what is ballast. y its needed to start & stop lamp. what is ballast ckt.

0 Answers  

---

Why Ac Systems Are Preferred Over Dc Systems?

0 Answers   ABB,

---

Why do we apply both Differential and REF (HV and LV) protection schemes on YNyn configuration of a transformer?

0 Answers   WCC,

---

why transformer rating is always in KVA

7 Answers   GNG, NTPC,

---