what is derating factor in Cable ? how we minimise this?
Answer Posted / mohamed abd elhamid elsaied
Due to partial discharges in cable it can't be utilized to
it's rated capacity.
As current flowing to charge cable capacitance is extra
burden on that which will make it to carry less current for
load.
To reduce this good insulation material should be use.
and this mean that if cable can its rated 100 Amp. it will
max amp 95 Amp.
| Is This Answer Correct ? | 7 Yes | 25 No |
Post New Answer View All Answers
What is the difference between diode and a transistor in terms of the direction of current flow?
please forward me the type of questions which would rise while me attending to 33KV Electrical License to my mail ID:vadrevu_raghava@yahoo.co.in
what is KSR type transmission tower? What is LSR type transmission tower?
why 3 phase is converted into 2 phase using electronics circuit why not 2 phases are diresctly putted from the 3 phase transformer??
ROC converges if poles and zeros lie inside a. Origion b. Z=1
how we can calcultae the short circuit level for bus bar
Q) Write VBscript code along with QTPscript code in QTP tool for below scenario 1. Launch yahoo site(i know) 2. Do loogin(i know) 3.Click inbox link(i know) 4.Go to every page of mail box and count no.of read mails and no.of unread mails(i know) 5.Store page numbers, read mail count and unread mail count in a new excel file sheet 6.Create 10 types of graphs on that data 7.Do logout and close site(i know) 8.Save new excel files with graph
Why in metering Ct for ammeters ct secondary side is grounded for each Ct but not in case of CBCT (Core balance current transformer)..kindly some1 highlights the reason..is it because net flux is zero?
What are the uses of stepper motor?
in ACB breaker requireding 3200Amps. buscoupler getting OFF mode and again it reset and getting normal position give me a required answer?
what is the efficiency of thyristor
1)Explain why the cradle guard is used on railway crossing in overhead line construction?
What is main cause of cable's terminal point burned in Lug on high temperature although lug and cable selection is ok as per stantard and also tightness is ok as per situation. so please take in deep and tell correct answer thanku.
how to calculation increase power factor for single phase
what is the principle of the single phase energy meter? and,what is the advantages and disadvantages of single phase energy meter?