Watt the unit of power, generally expressed by the symbol W, watt is defined as J/s, that is, how much energy is converted, used or consumed per second, in the circuit describes the speed of doing work. The unit of watt is very common in life, for example, the output power of your solar panel will be labelled with a value like 200watt, 200watt solar panel means that the solar panel can produce 200J of electricity per second under ideal conditions.
Kilowatt is the same as watt, are the unit of power, kilowatts can be expressed by the symbol kW, to know is that the kilowatt is 103 times the watt, want to realize the conversion of kilowatts to watts can be achieved with the help of the following formula, namely
W=kW×1000
For example, suppose the output power of your solar panel is 0.5kW, substitute the above formula to get the output power of your solar panel is 500watt.
KVA can be represented by the symbol kVA, which is the unit of apparent power in a circuit system. Apparent power includes active power and reactive power, and although kW is also the unit of power, kW is the unit of actual power, while kVA includes all the power in the circuit from the components, so it can be seen that there is a certain difference between the two.
Volt-ampere is also the same as kVA is the unit of apparent power, volt-ampere can be expressed with the symbol VA, kVA is 103 times the volt-ampere, so volt-ampere is converted to kVA formula is
kVA = VA/1000
As an example, assuming that the apparent power of your circuit is 1000VA, substitute the above formula to get the apparent power of your circuit is 1kVA.
Power factor is a very important parameter in AC current, to realize the conversion from watts to kilovolt-amperes you must use the power factor, because the power factor describes the ratio of actual power to apparent power in a circuit. The power factor varies from circuit to circuit, but normally it ranges from about 95%, so you can consult your local power company or ask a professional to measure your circuit.
After obtaining the above key data, you need to specify the physical quantities, such as real power (PW), apparent power (PkVA) and power factor (PF), then you can use the following formula to convert watts to kVA
P(kVA) = P(W)/(1000 x PF)
For example, assuming that the actual power of your circuit is 2000 watts and the power factor of your circuit is 95%, then substituting into the above equation gives you an apparent power of 2.1kVA.
