Interested to Buy Any Domain ? << Click Here >> for more details...
the total iron closs in a transformer core at normal flux density was measured at 25hz and 5ohz and was found to be 250w and 800w respectively.the hysteresis loss at 50hz would be................?????
- 1 Answers
- 6620 Views
- ABB, I also Faced
- E-Mail Answers
Answer Posted / utkarsh agarwal
according to the data flux density is constant.
Pe1=f1^2 Ph1=f1
Pe2=f2^2 Ph2=f2
takinf f1=25hz
f2=50 hz
Pe1/Pe2=1/4
Ph1/Ph2=1/2
now iron loss Pi=Ph1+Pe1
Therefoe
1. ph1 + pe1=250
2. 2ph1+ 4pe1=800
solving we get ph2= 200w
P.S. : "=" is meant to be proportiaonality sign in first 3 lines
| Is This Answer Correct ? | 8 Yes | 1 No |
Post New Answer View All Answers
Minimum IR value of 1.1 kv grade 3.5c (300, 240,185,150,120,95,70,50,35,25) sqmm Aluminium XLPE cable and 4c (16, 10,6 & 4) sqmm cu arm cable between RY,YB,BR,RN,YN,BN,RE,YE,BE & NE.
Explain the operation of grid connected central solar inverter ?
How to Calculate KA Rating of Main LT Panel
what is the difference between torque induced and torque load?compare them with respect to dc motor?
we have 2.2kw,Y,3000rpm motor but 6leads found in TB what happen if we connect in delta?
Can you explain about TEE protection scheme?
What is meant by cold loop test in instrument
What is ideal IR values for ground and neutral.
What should be the length of transmission line so that we can see/obtain the full sine wave of voltage??
Explain Random and Deterministic signals?
WRITEDOWN FEW RELY CODES
What are n circles?
What are safety device in vcb and acb?
What is mean by hot and cold loop testing? What is the difference between them?
What are the Full Forms of TVM, MTL, CVT ?
