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Question
What is the significance of 3.5 core cable ????
 Question Submitted By :: Electrical-Engineering
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
3.5 core cable means 3 cores is belongs to RYB (PH-1,PH-
2,PH-3) and .5 cor means either nuetral or ground conductor.
 
Is This Answer Correct ?    54 Yes 4 No
Eswarudu.guddati
 
Answer
# 2
3.5 means
R, Y, & B phase are have same dia.
and forth wire have just half dai of rest 3 Phase i.e. RYB
 
Is This Answer Correct ?    49 Yes 6 No
Mohd. Karim
 
 
 
Answer
# 3
The 3 indicates RYB and .5 Neutral. In normal conditions,
power supplied is balanced. So, no neutral current flows.
But in case of small unbalanced condtions, low amount of
neutral current has been found and hence to provide the
path for it, neutral wire is provided with half of the
cross section that of phase.
 
Is This Answer Correct ?    22 Yes 1 No
Ashesh Shah
 
Answer
# 4
three core having same dia and 4th having half dia as
compared to first three.
 
Is This Answer Correct ?    13 Yes 5 No
Md.shahid Karim
 
Answer
# 5
1.economic compared to 4core.
2.less size compared to 4core.
 
Is This Answer Correct ?    7 Yes 4 No
Raman235
 
Answer
# 6
actually they are mainly choosen to prevent the eddy
current caused due to induction in the gland plates of
Electrical control panel
 
Is This Answer Correct ?    1 Yes 10 No
X Man
 
Answer
# 7
Resistance of 3 core and 3.5 core remains same. 
Is This Answer Correct ?    3 Yes 20 No
Shivaprakash.t.v
 
Answer
# 8
3 core 
Is This Answer Correct ?    0 Yes 21 No
Sathya
 

 
 
 
Other Electrical Engineering Interview Questions
 
  Question Asked @ Answers
 
can we use inductor in case of d.c.,if yes then what will happen in circuit JSW 3
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why cannot we use a freuency more than 400hz is used in aircrafts?   1
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What is DG B-check and C-Check   1
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difference between torque mode and speed mode JSW 4
How to find knee point voltage in current transformer? TCS 1
I hv a question regarding power factor improvement just after transformer. I request you to reply me plzz. thank you sir. My friend has a small unit of fabrication. in his factory the main load is a welding machine, lathe machine, grinding machine. this load is not continuous type. now our electricity board has installed 16 KVA, 11000/433 V transformer for our factory. In the energy meter (trivector meter) at LV side of transformer, i hv seen power factor value of 0.15 only when only 3 KW load was flowing. Further electricity board has suggested to install 4 KVAR capacitor at LV side after energy meter. Now my question is that if we permanantly install and switch on 4 KVAR capacitor after energy meter, during some load on transformer and also without any load on transformer, wht will be the power factor shown in energy meter?i dont want to get any penalty by electricity board, so plz suggest me if i can permanantly install and switch on the 4 kvar capacitor or not at LV side of transformer just after energy meter? Thank you again and awaiting for ur positive reply soon.   8
if neutral earthing is weak of a system then how can we improve it ? Technically explanation ?? CS 1
 
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