Types of grid connection

Question 1

In theory, loads can be connected at all levels of the …

Answer 1

electric grid

Question 2

Most of the loads are connected to the …., which offers single and multiphase power

Answer 2

distributed grid

Question 3

Certain electric loads such as … use all three phases

Answer 3

electric loads

Question 4

Most customers do not have 3-phases service, instead they use standard single phase or …

Answer 4

multiphase service

Question 5

Single phase connection
Standard power outlets have a nominal voltage of 120V.
They have 2 terminals, what are they?

Power outlets also have a third terminal, what is it?

Answer 5

1 –> connects to “hot” phase, i.e. one phase of the a.c. power grid supplying an alternating voltage with rms value of 120 V at ±5%.
2 –> connects to “neutral” phase at zero volts

Third one is GROUND that is only used during appliance malfunction