Answer Posted / roshan

if the in put of a transformer is DC then steady current will
flow due to which change in magnetic flux will not take place
& induced emf will not be produce & therefore the transformer
will not work

I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?

2059

---

what is the maximim current drawn by 1 phase and three phase welding machine

1810

---

Can Anyone suggest the Standards (IEC or IS) for selecting copper current density?

1345

---

hi friends how 3 phase converter functioning ?what is working principle of rotory phase converter ?

2030

---

How to Calculate Transformer Earthing Electrode Rod Size both Body and neutral Earthing ? Any Standard Formula? Please Suggted

1560

---

Define peak time.

1087

---

How can I model an open-delta ground transformer for a network supplied by 4 unit GTG and power transformer in ETAP?

13700

---

What is the formula to calculate the size of Aluminium and copper cable?

1900

---

What is the use of lag compensator?

1164

---

wHAT IS CAPACITANCE LATCHING? hOW TO CALCULATE CAPACITANCE LATCHING? hOW TO SOLVE THE PROBLEM IF CAPACITANCE LATCHING APPLIED?

1957

---

how maney type tempereture measurement ?

2199

---

Can Anyone Answer anyone of these ? Q1) why direct SOLUTION of Load Flow Studies in Not Possile ? Q2)Why majority of Buses in power system are load buses Q3)Why one of the buses in Power system is taken as reference bus (slack or swing) Bus ? Q4)Bus Admittance Matrix is a sparce (means it contains some zero elements ) matrix , give reason

1847

---

If I have Energy Meter Ratio as 100:5 & Also I have CT Ratio as 50:5 then what will be my multiplying Factor(M.F.)

1928

---

Instrument connected to a single phase supply

1645

---

What do you mean by a current transformer?

1044

---