what is ratio test?
Answer / ajeet pratap singh(power palnt
Ratio test is performed in transformers, CT , PT to know the actual voltage ratio .
here we will explain about PT ratio test.
As we know that PT contain Primary winding (A1 _ A2) & its secondary is S1 & S2.
Now Connect A2 to earthing link.Take 220 V ac supply from external source.
Connect A1 to phase of 220v & connect earthing link to neutral of 220 v AC.
Now use multimeter in secondary side.If PT ratio is 132/110/1.732
Then in secondary side multimeter will read 0.196volt. If this value is not found then ratio test is not ok.& voltage ratio is improper.
Is This Answer Correct ? | 1 Yes | 0 No |
defult setting in p220 micom motor proction relay for 11kv,640kw,f.l.a.-40a,1440rpm ht motor?
How to see the inductance in a transmission lines
what is recovery voltage & transient voltage ?
when ELCB breaks the circuit than INVERTER auto-connect the circuit to the battery than how can the operetor is safe??
difference between ordinary MCCB & Motorised MCCB
what is the equation of converting KW into HP ?
induction 3 phase motor terminal connection
when will be the iocl interview results ifaced the interview on september 8 th
what are balanced and unbalanced loads
How to solve the problem of low voltage at consumer end in distribution system if one phase come low voltage of transformer
what are the main differences of delta and star connection
what things to be considered when designing UPS
0 Answers Aplab, Veta Kipawa ICT Center,