in GEAFOL Cast-Resin trnaformer of 11/.72kv which has
tapping of 11550v,11250,11000,10246v in primary side. To
obtain 700v. which tapping should be used of HV side as we
have 11000v/720v tapping now .
Answer Posted / 7anoter4
If the primary voltage [supplied by Utility] it is NOW 11
kV and your transformer at no-load shows 720 V at its
secondary terminals the ratio primary/secondary voltage is
11/0.72=15.278. If you want to reduce the secondary to 700
V you have to change the ratio to 11/0.7=15.714.
Let's say the rated secondary voltage [at no-load] is 720 V.
That means the ratio 11250/720=15.625 it is the most
suitable and you'll get 11000/15.625=704 V at secondary
terminal [at no-load].
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
where can i get vijaya electricals limited in hyderabad interview auestions can u give me the website address plz
What is difference between SMC supportg and Glass Fibre Reinforced Plastic Support.
The electrical energy required to raise the tempreture of a given amount water is 200 kwh. If the heat losses are 20%, the energy required is?
in our all power plant have connected in grid and grid voltage and plant voltage is same, but as per as electrical concept the power will transmit from high potential to low potential but here altough same,then how power transmit from power plant to grid.
What is error of a measurement?
when we design electrical schemes of 11/.415kv distribution..wen and were should we show the relays??what is the function of it?for example..we place EFR Relay CT between transformer neutral link and transformer earth.Like this what are the other type of relays we should use?why?where?Explain please..Thank you
A cable with concentric PE conductor must be used with frequency converter circuits what does its means.?
plz explain the auot-reclosing circuit in electrical engineeing
What is the procedure/activities to be taken to inject the current more than 2000A by using 2000A Loading Transformer?
A TRANSFORMER 440/400V,DELTA/STAR CONNECTED.THE NEUTRAL CONNECTED WITH GROUND CABLE THAT IS DIRECTLY CONNECTED TO THE PANEL,FROM PANEL IT IS CONNECTED EARTH PIT.IS IT RIGHT? IF IT IS RIGHT LEAKAGE CURRENT AFFECTED.SECONDATY IS PROTECTED WITH EARTH LEAKAGE RELAY.
for 5KW resistive load can anyone please suggest me whether to go for UPS/Inverter or Generator depending upon cost calulations
as a electrical student why should i hire you?
ITI r/tv trade APPLY (J.T.O VACANCEY) ALSO INCLUD AITT ELECTRONIC,WRITEEN XAM DONE 23.03.10 BUT NO RESPONCE WHY ANATHER ID gopal_gh007@rediffmail.com
How to measure power in 2 or 4 or n phase circuit? Please give me a formula.
what is the purpose of slope in the differential relay?why we are using two slope?but in busbar differential we are using only one slope.why?