Questions about the Synchronous Machines poster

What’s on the Synchronous Machines poster?

A definition and 6 facts worth remembering. A synchronous machine runs exactly at supply frequency, its rotor field locked to the stator field. Speed is fixed by frequency and pole count; Excitation sets reactive power, not real power; Over-excited, the machine supplies reactive power; Under-excited, it absorbs reactive power instead; Load angle sets the real power transferred; It cannot start unaided from standstill; Two poles at 50 Hz — 3000 rpm; Four poles at 50 Hz — 1500 rpm; Pull-out load angle — Near 90 degrees; A synchronous condenser is an unloaded machine run purely to trim the network's power…. Educational reference. Nearly every large grid generator is a synchronous machine, and grid work requires qualified supervision.

Who is the Synchronous Machines poster for?

Synchronous Machines belongs to the Electrical Engineering section rather than to a school year, because engineering is not something one grade owns. Anyone learning power can pin it up — a beginner, a student mid-course, or someone revising years later.

When should you use the Synchronous Machines poster?

Read it before any question about reactive power, load angle or grid inertia. A wall chart earns its place by being glanceable from where the work is happening, so Synchronous Machines belongs on the wall where that engineering work actually happens, within glancing distance, rather than filed away.

What other posters go with Synchronous Machines?

Power-Factor Correction, Renewables on the Grid and Earthing & Protection sit alongside Synchronous Machines in the Electrical Engineering section. Printed together they make a wall rather than a single sheet, which is how a reference set actually gets used.Power-Factor CorrectionRenewables on the GridEarthing & Protection

Is the Synchronous Machines poster free to download and print?

Yes. Synchronous Machines downloads as a free PDF with no account, no email and no watermark, like everything else in the Electrical Engineering section. Print as many copies as you like for a home, a classroom, a library or a tutoring group; reselling the file is the only thing the licence rules out.Read the licence

What size does the Synchronous Machines poster print at?

Synchronous Machines is a vector PDF laid out for US Letter, and prints on A4 with Fit to page — the same file, no separate download. Because every mark on it is drawn rather than photographed, it stays sharp enlarged to A3, A2 or A1 at a copy shop. Colour carries emphasis only, so a greyscale print of Synchronous Machines loses nothing.Printing guide