How to test and satisfy the conditions of the vector group
YNd1 for power transformer?
THIS IS ONE OF THE MANUFACTURER TEST OF VECTOR GROUP.
IN THIS TEST , THE HV RPh or Uph is connected to low voltage
rPh. /uPh. then 400v 3ph is applied. various voltage are
measured. (RS,ST,TR, R-N,S-N.T-N, r-s,s-t,t-r, r-N,s-n,t-n.
then, draw the graph,
refer to electrical hand book-transformer, any text book
also,manufacturer test report
Is This Answer Correct ? | 3 Yes | 5 No |
Can anyone tell me what will happen if AC & DC supply get mixed???
What is ONAN/ONAF1/ONAF2 for transformer cooling
static chagre
what is difference Auto-transformer and ICT ?
If the maximum demand is 120 KVA in a building, then what is the Current taken according to load given ? Formula for it ?
Installation resistance for whole installation of 16 kva & 25 KVA DTRA a) Between each conductor b) between conductor to earth c) installation resistance for each apparatus, each conductor to earth d) earth resistance for the system of earthing
what is neutral ground resistance relay? how it is helpful in protecting system?
Define Current Transformer? Working & TYpe's Of C.T.
WHY CBCT USE ONLY IN Y PHASE NOT OTHER PHASES
Explain the advantages and disadvantages of thermal power plant?
what is efficient load of transformer in percentage
In order that work may be done:(a) Two wires are necessary(b) The circuit must have a switch(c) Coal must be burnt(d) A supply of energy is required