we have a 2000kva step down transformer at our site. The HT
side is charged from 22000V. So the primary current will be
52.48A. So why the HT breaker(SF6 ABB) is rated of
1250Amps ?
Answers were Sorted based on User's Feedback
Answer / chris
I don't know but I'd like to see the answer. I'm pretty sure Javad isn't correct but might be.
Is This Answer Correct ? | 0 Yes | 0 No |
why HT armoured cable does not glanding
In step down transformer (415/200V),mistakenly secondary side is connected to 415V for some hours, what would be result of this condition?
19 Answers Essar, GAIL, Vizag Steel,
What are the internal and external faults?
How to select the earthing transformer,for DELTA TO DELTA TRANSFORMER OR ALTERNATOR SIDE.Pls post your answers and calculation.
dear sir/madam i want to get some knowledge about RRB EXAMINATION(section engineer) 1- what is minimum cut off 2- wht portion is major portion . 3- can any body provide Sample paper. thanks & regards ashish
What is the basis for selecting Vk/2 or Vk/4 for REF and Differential protection of Transformer and What is the significance of magnetising current
what will happen power cables laid without gap in underground
As per standard, transformer body earthing and other Equipment earthing (Equipment earthing) did not connect. but in LT side termination we are doing metal glanding in both side Transformer to PCC Panel through armoured cable, now X'mer body earthing and PCC Pane earthing (Equipment earthing) both are connect.is this safe for X'mer or other equipment?
In DC motor,the field MMF is given by NI.N-no.of field winding turns,I-excitation and both are constant.Then how could the main flux decreases due to armature reaction.
what is the advantages og idmt relay over magnetic relay??
Is there any problem ,if R-Y-B voltage is constant , but the air compressor taking one phase high current.what is possible causes.the said compressor is very new.(55kw).
if we apply 1000ADC instead of 100ADC or We apply 50ADC instead of 100ADC,What will be happened in the test result value.Pl explain