Answer / prakash gokhale

Please check for the mechanical assembly of the VCB. Some
times due to some misalighments breaker can not be closed
mechanical or electricaly even if CC & OC are ok.

Answer / harish kumar

please check the BREAKER FUTURE INTERLOCKS ( LOOPS) MISSING IN THE CIRCUITS.

can we use relay in fan?

0 Answers   NTPC,

---

what is %impedanece

3 Answers   KSEB, Steel Plant,

---

what take 100 w take current

1 Answers   SoftLogic,

---

How to calculate voltage drop in copper and aluminium cable? I have laid 240Sq.mm Aluminium cable for the length of 600 Mtrs in 1 Mtrs underground. Normal load is 150A. Transformer is 630KVA, 6.KV/433V. But, I am getting only 395 Volts when load. How to calculate voltage drop and what is the permissible voltge drop for this circuit?

1 Answers  

---

Define the three phase formula fuse.

0 Answers   ABC, Gayatri, UPCL,

---

---

what will happen if one of the phases from a 3-phase motor is disconnected?? stop/run at 2/3rd speed or run at same speed????

3 Answers  

---

megger generates D.C. voltage while earth tester generates A.C.voltage is it true? I know for megger it is D.C generator but what about earth tester?

4 Answers   IOCL,

---

which is more danjerous high voltage or high current

0 Answers  

---

what is mean by VCB colour code..???

1 Answers   Student,

---

what is the design factor that affects the size of a motor ?

3 Answers   Reliance, SGI,

---

What is the difference between harmored cabled and unharmored cables

1 Answers  

---

my question is Megger of cable insulation or swgr board meggerring some values in one day 50mohms,some other day checking different values(20Mohms). this tell that some person tell that that values ok. how to identify the megger value is correct. pls tell me the answer.

2 Answers  

---