Interested to Buy Any Domain ? << Click Here >> for more details...
Three set (each phase contain 2 cable of 400 mmsq CU XLPE
AWA) of single core cables are connected to 11 KV motor of
14 MW & the switch gear supplay is taken from 11kv feeder &
this supplay taken from 275 KV substation. Problem is one
pair cable(L3- 2 cable ) getting very hot & gland melted
and damaged in switch gear side. the other two cable
haven't any more hot(ambient temp only & L3 haveing 95- 100
Degree C. The same problem happened in 275 KV substation
switch gear side also where the supply taken for 11 kv
switch gear. But here L2 phese cable had problem. Why it is
happening like this?. The cable having temperature
different at different location from gland side inthe case
of 11KV feeder of 275 kv substation. why ?
- 2 Answers
- 4369 Views
- I also Faced
- E-Mail Answers
Answer Posted / kaviraj
Get a thermal imager or camera, you will see the loose
connection very easily. I also bet it's a loose connection.
Else one of the cable cores has been broken. Check for sharp
bendings on cable. Copper braids still connected/earthed
properly?
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
Define what is the function of anti-pumping in circuit breaker?
how to caculate cable size for diff types of loads? if anyone know the calculating procedure please tell me
What is the difference between electronic regulator and ordinary electrical rheostat regulator for fans?
HOW TO CALCULATE HV CABLE SIZING?
can anybody send me syllabus of rrb section engg (electrical). and also send previous question pepar...
what is the difference between linear choke and suction choke?
Define load factor?
what is the purpose of high speed earth switch in gas insulated substat
hi , i have 150 kw loud and we need 50 m cabil,i want to know wich size cabil we use. thanks
why we are using earth pit in sub stations.?
Why did lightening arrestor solid copper rod head is sharp on mobile tower top?
what is R Core Transformer. how it differs from normal transformers. dont search in net and post the answer.
what is the diference between the 4pole & 6pole DC Motors & what is advantage 6pole over the 4pole ?
What are locations arc protection relay is fixed.
What will happen if the armature resistance is in minimum position and the field resistance is in maximum position while starting the motor
