Which of the following statements are FALSE?
- Wattmeters are used to measure reactive power.
- Wattmeters have a current coil and a voltage coil.
- The wattmeter voltage coil behaves similarly to an ammeter and the current coil similar to a voltmeter.
- The voltage coil must be connected across the supply terminals and and current coil must be connected in series with the load.
- Low power factor wattmeters are used to accurately measure the power to loads with lower power factors e.g. inductive loads.
- Unity power factor wattmeters are used to measure capacitive loads.
- The top image shows a unity power pf wattmetter and the bottom image shows a low pf wattmeter.
- Two wattmeter method is a method utilising two wattmeters that is used to measure three phase power such that
- Two wattmeter method CANNOT be used when the neutral of a wye/star connected load or the phases of a delta connected load are inaccessible.

