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Ulitization factor is how much of the designed total is used. My house is fed off a 50KVA transformer. It's capable of supplying 50KVA continuously, but it's probably only gets used at its' full potential every once in awhile (when my neighbors and I wake up in the morning, and when we get home from work and eat dinner, perhaps). Say it only gets used at 30KVA on average. The utilization factor would be 30/50, or 60%.
Wiki User
∙ 12y ago
Wiki User
∙ 11y agowith a very good transformer you may get 95% efficiency
this is mostly due to eddy current losses in the core or magnetization losses
so with 100va transformer you lose 5 va
if you need 10va to charge your cell fone battery
with the 100va transformer 10va goes to the phone and 5 to keep the transformer warm
you wish to make a call while the phone is charging you need 5 plus the 10 to charge the battery a 20va transformer you only lose 1 to heat the wall wart
if you are out most of the day and want to charge it in 1/2 hour you need the 100va seems like extraordinary expense on the chance you forget to put it on the charger before you go to bed
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What are common efficiencies for transformers?
Transformer utilization factor is the ration of power delivered to the load and ac rating of the transformer secondary.
Why you are indicating capacity of transformer in KVA?
transformer action doesn't depend on power factor that is why we indicate its rating in KVA
When is a transformer closet to unity power factor?
When it supplies a resistive load.
How much power in a 15000 kva transformer?
The power in a 15 MVA (15000 KVA) transformer depends on the power factor. You did not specify the power factor, so I will assume a power factor of 0.92. Simply multiply MVA by PF and you get 13.8 MW.
Why the power factor of a transformer is poor at no load?
The inductance of the transformer is much higher than the resistance of the transformer, resulting in very low real power losses (in watts), but some reactive power (vars).
What are common efficiencies for transformers?
Transformer utilization factor is the ration of power delivered to the load and ac rating of the transformer secondary.
What is the meaning of plant utilization factor in hydro power plants?
Utilization factor is a metric for power plants that describes how close the plant is operating to full capacity. For hydropower, utilization factor can be affected by droughts and seasonal variations in rainfall.
What is the need of form factor in transformer?
transformer is a static device hence it needs form factor.
What is utilization factor?
Ulitization factor is how much of the designed total is used. My house is fed off a 50KVA transformer. It's capable of supplying 50KVA continuously, but it's probably only gets used at its' full potential every once in awhile (when my neighbors and I wake up in the morning, and when we get home from work and eat dinner, perhaps). Say it only gets used at 30KVA on average. The utilization factor would be 30/50, or 60%.
The transformer utilization factor of full wave bridge rectifier is?
3 phase 3 pulse form factor -> Edc= .675 Eac .675= 3/(pi*sqrt(2)) 3 phase 6 pulse form factor -> Edc = 1.35Eac 1.35= 2*(3/(pi*sqrt(2)))
Why transformer power factor taken unity?
It isn't! A transformer operating at no load has a very low power factor.
What is the calculation of utilization factor GTG?
To calculate the utilization factor of GTG do the following =(Power generation/ (design capapility MWH* period hours))*100 hope i answer your question
What is the importance of scale of preference to firms?
the importance of scale of preference to firms is right choices of goods to produce an efficient utilization of resources
If power factor is 8 then how many ampere there will be in each phase of a 250 kva transformer?
The power factor is only taken into consideration when the Kilowatts of a transformer is used.
What is the condition for zero voltage regulation of a single phase transformer?
zero volatge regulation means the terminal volatge of transformer at full load on a given power factor become equal to the rated teriminal volatge of transformer , it happens only for leading power factor in transformer
Why you are indicating capacity of transformer in KVA?
transformer action doesn't depend on power factor that is why we indicate its rating in KVA
What is the use of transformer utilisation factor?
It tells us how much is the transformer utilised in a given process. For a rectifier,TUF =(D.c.power delivered to the load)/(power rating of transformer secondary)
