What type of motor is illustrated by the schematic of figure "A" of the illustration and what type of starting relay is used? See illustration EL-0217.
• Permanent split capacitor (PSC) motor vs. capacitor-start motors – how the capacitor is connected during start and during normal running • Starting relay or switch – when is a relay/switch needed to take the start winding or start capacitor out of the circuit? • Difference between single capacitor (always in circuit) and additional start capacitor that is switched out
• In figure A, look carefully at the capacitor symbol: is there any switch or relay contact in series with it that would remove it after starting, or is it permanently connected between the start and run terminals? • If the capacitor and auxiliary (start) winding stay in the circuit all the time, what class of single‑phase motor does that describe? • Which types of motors from the choices specifically require a relay or switch to DISCONNECT a start capacitor, and which do not?
• Confirm whether figure A shows one or two capacitors and whether any of them are switched out by a relay or contact. • Verify if there are any relay contacts or centrifugal switches drawn in figure A (look for movable contacts like in figure B). • Match the observed connection in figure A to the definition of a permanent split capacitor motor versus capacitor-start / capacitor-run designs.
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