What are the watt-hour meter and reactive watt-hour meter

 115/120 V AC Voltage and Three-phase Phase small 240v electric motor
Specifications
1.Specifications1.3-phase asynchronous motors 
2.IEC standard 
3.OEM 
4.Voltage:50HZ &60HZ;380V&415V 
5.Protection class: IP54 
 Electric energy can be converted into energy. Such as: through electric furnace is converted into heat energy, through the motor is converted into mechanical energy, by the light is converted into light energy, etc. In the conversion of electrical energy consumed ac electric motor in active power. And record the electric energy meter as watt-hour meter. Electrician principle tells us that there are some electrical apparatus in energy conversion at first have to establish a change of environment, such as: motor, transformer, etc to set up a magnetic field to make energy conversion, and some electrical equipment is to build an electric field to make energy conversion. To establish the electricity required to magnetic and electric fields are reactive power. And record the electric energy meter as reactive watt-hour meter. Reactive power in electric device itself is not consume energy, but can produce reactive current in the electric circuit, the current will generate a certain amount of loss in line. Reactive watt-hour meter is specially recorded a loss, generally only a large electrical unit to install the electric motor price active power meter table - use pointer indicating current device instantaneous value of active power consumption. 


MS160 Electrical Induction Motor

Specifications
MS160 Electrical Induction Motor 
1.100% Copper Wire 
2.Voltage Tolerance 5% 
3.Aluminum , CE, ISO9001 

4.Factory Promotion IE2 
Measuring P watt-hour meter - they wore disk indicating the current consumption of the cumulative value of the active power. The W (W = PT) Active power meter is measured active power, it is different from the one ac voltmeter and ammeter and communicate list was made on the load in the value of total power, it must be less than or equal to the value of total power, this ratio is called power factor, with V table and A table of minus the total power with active power table measured active power reactive power value is the current line. Such as you put A few uF capacitor in series in the 220 V circuit (pressure more than 300 V) with active power table measured Single phase motor value should be the basic power is zero, and V table and A table for measured total power is not zero, because the currents and voltages, but because of its phase deviation of capacitor not electricity, so active power is zero, the rest are all reactive power, so you home electric meter (watt-hour meter) should not turn. (if turning slowly because the line resistance loss power) with active power than the total power on power factor.