How many kilowatts is Giva equal to?

KW？ This unit is mainly used to measure electricity, because kilowatts? Time is easier to be understood by the public than Joule, and it is easier to be converted into hours used by electrical appliances. On the other hand, joules versus kilowatts? The unit of measurement of hours is too small to be calculated conveniently. In Chinese mainland, there are also public institutions that use MW hours instead of kWh in their billing. Time. In Chinese, kilowatt is sometimes written as "kui".

In electricity, kilowatt-hour and kilowatt-hour are exactly the same, but the names are different. One kilowatt hour = 1000 watt * 3600 seconds = 3600 kilojoules = 3600000 joules. KW is usually used to represent the power of generators, engines, motors, tools, machines, electric heaters, etc. It is also a common unit to express the electromagnetic power of radio and television transmission towers.

The use of power

In physics, power P= work J/ time T, and the unit is Watt W. The units of power often seen in the media are kW, Ps, hp, bhp, whpmw, etc. , and cv used in Italy before. The kilowatt here is the international standard unit, 1 kW =1000 w, 65438+ need1second.

In our daily life, we often call power horse power, just as we call torque torsion. In the automobile field, the biggest working machine is the engine. Engine power is calculated by torque, and the formula is quite simple: power (w)=2π× torque (Nm)× speed (rpm)/60. After simplified calculation, it becomes: power (W)= torque (Nm)× rotational speed (rpm)/9.549.