In 6600/√3/110/√3v voltage transformer,how much output
voltage in open delta transformer,after removing 1-phase of
primary side on transformer?
Answer Posted / 7anoter4
The open-delta connection it is actually 2 single phase transformer in series.
The voltage between two high voltage terminals it is 6600 V and each secondary
phase presents 110/√3 V[ some time even 100 or 110V].
If all three H.V.phases are connected the voltage between secondary terminals[in direct series] is 110/√3<0o +110/√3<120o=-110/√3 V<240o or oppositely connected 110/√3<0o -110/√3<120o=110 V<30o .
If the removed phase it is an extreme one then only one transformer stays connected [two voltages at ends] and the voltage is 110/√3 V.
If the removed phase it is the middle then both transformers stays connected with only one 6600 V and the voltage is 2*110/√3/2<0o=110/√3 V[or 110 V] for direct connection or 0 if they are oppositely connected.
Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
if we have 320KVA Genset kindly advice how much load we can put it.
what do you mean by plant earthing system.
fuel-air ratio in a petrol engine fitted with suction carburettor,operating with dirty air filter as compared to clean filter will be
How to Calculate Transformer Earthing Electrode Rod Size both Body and neutral Earthing ? Any Standard Formula? Please Suggted
WHY SEPARATELY EXCITED MACHINE NEEDS EXCITATION BY DC SUPPLY WHY NOT BY AC
How many types of colling system it trformers?
Would you recommend to replace all oil filled cables with xlpe cable for hv transmission with the current technolgy for xlpe cable?
How may I enrol or get admission to your program?
how will calculate the safe starting current of 3-phase squirrel cage induction motor?
defination of lines
if an insulated power and control cables of a running gas diesel gensets laid direct in an open trench i.e, trench bed is not rcc of a power house in which rain water, spillage water alwas exists and all power control cables remains submerged even when gas gensets of 480 kw each runningin on load. These power &control cables runs from power house to switchgear room through these trenches in which water remains most of the time. pl explain its merit & de-merit
draw the restricted earth fault protection circuit install on power transformer and identify its parameters and draw C/C curve of it
how to calculate the fault in substation
What is inrush current?
Whar is the KvA rating of 33Kv substation & actual kv rating of power generaating station.