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Question
phase clearance between phase to phase and earth
 Question Submitted By :: Electrical-Engineering
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
For 11 KV;Ph-Ph-130 mm
Ph-E -100 mm
For 6.6 KV:Ph-Ph-90 mm
Ph-E -70 mm
For 415 V :Ph-Ph-25 mm
Ph-E -20 mm
 
Is This Answer Correct ?    27 Yes 3 No
S Pradhan
 
Answer
# 2
phase to phase=130mm
phase to earth=110mm
 
Is This Answer Correct ?    17 Yes 6 No
Venkatesh
 
 
 
Answer
# 3
For 415 V :Ph-Ph-25 mm
Ph-E -20 mm

For 6.6 KV:Ph-Ph-90 mm
Ph-E -70 mm

for 11 KV : Ph-Ph-229mm
Ph-E-178 mm

for 11 KV : Ph-Ph-229mm
Ph-E- 178mm

for 33 KV : Ph-Ph-320mm
Ph-E-320mm

for 132 KV : Ph-Ph-1100mm if Lightning impulse = 550
Ph-E- 1100mm

Ph-Ph-1300mm if Lightning impulse = 650
Ph-E- 1300mm


for 220 KV : Ph-Ph-1900mm if Lightning impulse = 950
Ph-E-1900 mm

Ph-Ph-2100mm if Lightning impulse = 1050
Ph-E-2100 mm
 
Is This Answer Correct ?    12 Yes 4 No
Geetha
 
Answer
# 4
phase to phase- 26mm
phase to earth - 20mm
 
Is This Answer Correct ?    9 Yes 3 No
Hfgh
 
Answer
# 5
phase clearance between phase to phase and earth in
11Kv,33Kv and 66kv System.
 
Is This Answer Correct ?    4 Yes 1 No
Saleem
 
Answer
# 6
ans: 110mm for phase to earth
130mm for phase to phase
 
Is This Answer Correct ?    6 Yes 4 No
Mathi
 
Answer
# 7
Please give clearances for indoor as well as for outdoor and in air/vacuum/SF6 or within a switchboard(enclosure-IP..) 
Is This Answer Correct ?    1 Yes 0 No
Sinnadurai Sripadmanaban
 
Answer
# 8
phase to phase-1000m
phase to earth-200m
 
Is This Answer Correct ?    5 Yes 10 No
S Fac
 
Answer
# 9
phase to phase 1inch and for earth 1 1/2 inch 
Is This Answer Correct ?    7 Yes 20 No
Bmw6633@gmail.com
 
Answer
# 10
phase to phase 1inch and for earth 1 1/2 inch 
Is This Answer Correct ?    10 Yes 24 No
Bmw6633@gmail.com
 

 
 
 
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in india ac frequency is 50hz, but in foreign countries it is 60hz,whwt is the reason   8
What is the rating of your capacitor bank at your company. Apollo 11
to operate air conditioner of 1.5ton what power of generator is required   1
in DG synchronization system can i short R,Y,B- phase(DG-1) to R,Y,B Phase (DG-2), HOW IT WORK . WHAY WE NEED TO SYNCHRONIZATION.   1
what is the significance of 3.5 core cable? or what does this half core mean and why is it required?   4
what are the main differences of delta and star connection Essar 4
what is tha gap between the pole of 132kv line   2
Why CT secondary is grounded?   3
Dear sir, we are getting voltage fluctuations suddenly for 2 or 3 minutes again it becomes normal. we checked each and every connection some times we are getting 110 volts like that from earth to neutral again it is reducing we are getting supply from 45 kva DG set give earthing properly.   3
 
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