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Phantom loading consits of supplying the pressure circuit from a seperate low voltage supply. It s possible to circulate rated current through the curent circuit with a low voltage supply as the impedance of this is very low. therfore the total power required for testing the meter is compartively smal with phantom loading.
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TaigaDirect loading involves connecting a constant power source to the load, while phantom loading involves electrical devices drawing standby power even when turned off. Direct loading consumes power only when the load is active, while phantom loading results in wasted energy consumption.
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