One lamp is connected across corresponding phases of two alternators. They will be synchronised when
- the lamp is extinguished.
- the lamp is either at maximum brightness or is extinguished.
- the lamp is maximum brightness.
Explanation from PART66Online
With a lamp connected across corresponding phases of two alternators (the dark-lamp method), the lamp goes out when the two phases are in step, because there is then no voltage difference across it. Synchronism is therefore indicated by the lamp being extinguished, not by maximum brightness, which indicates the phases are in opposition.
markino87 asked · 18 Jun 2014
hi, someone could explain me this question? tks
Community Comments (5)
Please Sign In to post a comment.
More discussions in 11. Aeroplane aerodynamics, structures and systems
- The CSD or IDG speed governor setting
- What is the EASA regulation of the minimum separation between a seat and another seat or structure?
- What external warning is there for an APU fire?
- A cockpit check on the engine firewire system is a
- Excessive wear on both sides of the control cable pulley groove is evidence of
- As fuel level increases, system capacitance