starryccloveelectrical
New User
- Location
- China
- Occupation
- Electrical Software Designer
Hey electrical experts,
I was recently reading about synchronization in AC electric power systems, and can anyone please help me confirm my understanding?
From what I've read, synchronization involves matching the frequency, phase, and voltage of a generator or other source to an electrical grid in order to safely transfer power between two unconnected segments of a grid.
My Question:
In a 3ph service, is it required that phases match in the graphic 1- after 1ph transfer switch, the 208V load connected to phase AB on both primary and secondary power sources; the 120V load connected phase NC on both primary and secondary power sources?
Or...
Is it valid to have phase mis-match at the 1ph transfer switch in the graphic 2 - after 1ph transfer switch, the loads connected to different phases on primary and secondary power sources?
I would greatly appreciate any feedback or additional information on the topic.
Best,
Starry
I was recently reading about synchronization in AC electric power systems, and can anyone please help me confirm my understanding?
From what I've read, synchronization involves matching the frequency, phase, and voltage of a generator or other source to an electrical grid in order to safely transfer power between two unconnected segments of a grid.
My Question:
In a 3ph service, is it required that phases match in the graphic 1- after 1ph transfer switch, the 208V load connected to phase AB on both primary and secondary power sources; the 120V load connected phase NC on both primary and secondary power sources?
Or...
Is it valid to have phase mis-match at the 1ph transfer switch in the graphic 2 - after 1ph transfer switch, the loads connected to different phases on primary and secondary power sources?
I would greatly appreciate any feedback or additional information on the topic.
Best,
Starry