Answer / sridhar

this is not compulsory to have a joint in the cable length
of 985mtr. we can plan of avoiding joint by procuring the
cable drum in single length. Advantages is you can avoid
the joint & dis advantages is handling such a heavy cable
drum due to weight & special order to be placed on cable
manufacturer.
2. by having straight through joint in the cable, we have
to ensure that the joints are done at a proper place to
avoid any damage to the cables & to put the
identification / route marker to be placed if the cables
are going to be laid in u/g.
note:- As per the standard cable manufacturer is concern ,
the max. cable length in a drum will be 250mtrs. for this
we have to fix min 4nos. of straight through joints. By
this we are adding cost to the cables + straight through
joints.
by procuring through 1st method we can avoid the above said
parameters.

Answer / ankush mitra

1

Answer / pankaj

3

quantizer means?

0 Answers  

---

what is the static device rather than xmer which work on same principle as xmer?

18 Answers   NTPC, Power Grid,

---

why motor run slow speed in star connection?explain how?

3 Answers  

---

is it possible for different brand of H.V transformers to run or operate in parallel to each other? if so how much disturbance can this affact the H.V bus bar?

0 Answers   Unitech,

---

what is the difference in operation of 3 phase motor when am forward delta connection and reverse delta connection?

1 Answers   Birla,

---

What is RTCC in a transfomer and specify its function.

11 Answers   MCB, Vodafone,

---

Mention how NPN and PNP transistor works?

0 Answers  

---

what type of relays used in transformers?

24 Answers   APTransco, BSNL,

---

How much area is covered by a single lightning arrestor to protect object from lightning strokes ?

1 Answers  

---

Draw a Block diagram of TWO UPS systems connected in Parallel in Paralled mode?

0 Answers   HSL,

---

how to improve IR value in HT motors?

3 Answers   ABB, AMW, Macleods,

---

What are the different pre-commissioning tests that are performed on the distribution transformer, power cable and switchgear (11kv)?

1 Answers   Hitech, Reliance,

---