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A: They are both the same the first is the product volts times amperes the second is related to volts and amperes also. The difference is the second term is used to rate Transformers power output in terms of voltage to amperes. Example a 1kva means that you can expect 1kv at 1 ampere on the transformer output . But here is the trick the transformer only put out 250 volts So now what It means is 250v at 4 amperes nothing has changed the power remains the same 1 kw
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To convert KW to KVA just leave the power factor (pf) out of the equation.
Formula for Kilowatts = I x E x pf/1000.
Formula for KVA = I x E /100.
Wiki User
∙ 13y ago
Wiki User
∙ 13y agoKVA = (Volts x Amps)/1000
Watts = (Volts x Amps x Power Factor)/1000
Power Factor is from 0 to 1 with 1 being related to a pure resistive load. Power factor is less than one for inductive devices like motors which are more likely to be rated in KVA or just VA. A KVA rating will therefore always be greater than or numerically equally to KW rating.
Another answer
You are mixing VA (Volt Amperes) and Watts. The "k" means 1000.
Watts = Volts x Amps x Power Factor
VA = Volts x Amps
Power Factor ranges from zero to one with one indicating a pure resistive load.
Therefore, 1 kVA = 1000 kW when PF = 1.
Wiki User
∙ 11y agoThese units are used for completely different quantities, so you cannot simply 'convert' one to the other.
However, the volt ampere (unit for apparent power) is the product of voltage (unit for potential difference) and the ampere (unit for current).
Incidentally, the correct symbols are: 'kV.A' and 'kV'.
Wiki User
∙ 11y agoWatts = Amps x Volts x Power Factor.
VA = Amps x Volts
Watts and VA are equal only for resistive load where Power Factor = 1.
Wiki User
∙ 12y agoTo convert from KVA (kilovoltamperes) to KW (kilowatts) simply multiply by power factor. Power factor is the cosine of the phase angle between voltage and current.
Wiki User
∙ 13y agokVA = kW divided by (power factor). The power factor is the cosine of the angle between voltage and current.
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How do we Calculate Kwh to Kvah?
To convert 'kwh' to 'kvah' you first need to measure the length of time. You will then convert this amount to hours by dividing by 3,600. You will then divide this amount by the length of time.
How many kva is 21000 kw?
KVA is the vector sum of real and reactive power; put differently, KVA at a specified power factor will tell you how many KW you have: KW = KVA * pf You must provide a power factor or power factor angle (if angle, replace pf with cos (pf) in above equation) or total reactive power to calculate.
Convert 800kvar to kw?
The same way, as you convert Appels to Carrots ........... There is a formula: KVAr = KVA / KW or cos=KW/KVA > Yes, we are treating KW, KVA, & KVAr as the 3 sides in a 90 deg TRIANGLE ! KW= vertical katede KVAr = horizontal katede KVA = hypotenuse
Which is to consider in sizing generator kva or kw ratins?
the unit of generators power is KVA becoze the kva is the power that contain the active power (KW) and the reactive power mean that the name plate of any generator must contain the rated kva of it (like the transformer P (KW) = P (kva) * cos fi P (KW) = V I cos fi for single phase P (KVA) = V I when cos fi closed to 1 this will increase the useful power that exit from the generator or transformer with my pleasure
Convert kw single phase to 3 phase kva?
KVA is the unit for the apparent power i.e it's the vector sum of the true power in KW and the reactive power in reactive volt-amperage. So, to get the value of the KVA for the 30KW,just divide the active power(30kw) with the power factor of that load.
How do you calculate DG set current from kva?
Rating for DG set and any of electrical machines is calculated in KVA. KVA is calculated as KW/pf. One can calculate the required KVA for DG set with this formulation: (KW/pf)/load rate. For example KW=110, pf=0.8 and one loads the DG at 75%, so KVA= (110/0.8)/0.75=185 KVA.
How calculate kvar?
kvar can be calculated as follows the a product KVA andt the sine of the angle between the KVA and KW.
How do we Calculate Kwh to Kvah?
To convert 'kwh' to 'kvah' you first need to measure the length of time. You will then convert this amount to hours by dividing by 3,600. You will then divide this amount by the length of time.
37 kilowatta equals how many kVA?
kva and kw are related as KVA = (KW/PF) pf:power factor
How many kva is 21000 kw?
KVA is the vector sum of real and reactive power; put differently, KVA at a specified power factor will tell you how many KW you have: KW = KVA * pf You must provide a power factor or power factor angle (if angle, replace pf with cos (pf) in above equation) or total reactive power to calculate.
Convert 800kvar to kw?
The same way, as you convert Appels to Carrots ........... There is a formula: KVAr = KVA / KW or cos=KW/KVA > Yes, we are treating KW, KVA, & KVAr as the 3 sides in a 90 deg TRIANGLE ! KW= vertical katede KVAr = horizontal katede KVA = hypotenuse
How do you calculate power factor kvr?
Power Factor = KVA/KW. This has no unit. Its value is always 1 or less.
How calculate kvar if p is 560 kw and kva is 700?
The formula is that kW^2 + kVAR^2 equals kVA^2 or if you prefer, the kW and the kVAR are the two sides of a right angled triangle and the kVA is the hypotenuse. So here you have a 3-4-5 triangle times 140, in other words 420-560-700, and the kVAR is 420.
How do you change ac tonnage to kva and kw?
1 tone = 1540 Watts=1.540 KW. whereas 1 KW=1.25 KVA. I think you have got the answer.
How to convert from kV into kW?
Multiply by Amps.
How do convert KVA to KW?
kVA = kW divided by (power factor). The power factor is the cosine of the angle between voltage and current.
How can you convert the kva rating into kw rating?
kva*cos(phase angle)
