A good video about a 1920's lift including the slip ring motor

[UKMeterman]

The power guys might like

View: https://www.youtube.com/watch?v=6DlI0yOYHH0

 

[ipf]

Interesting stuff. That avatar of mine is a 'regulator', controlling the external variable resistance used to enable speed control of a slip ring motor. It's a Howells motor, the same make as in the video, on a printing machine, which requires controlling under load condition. The external resistance negates the inductive reactance (XL) created in inductance motors, thus enabling control as such.

 

[ipf]

Interesting stuff. That avatar of mine is a 'regulator', controlling the external variable resistance used to enable speed control of a slip ring motor. It's a Howells motor, the same make as in the video, on a printing machine, which requires controlling under load condition. The external resistance negates the inductive reactance (XL) created in inductance motors, thus enabling control as such.

'induction'...….. sorry about that!

 

[static zap]

'induction'...….. sorry about that!

Just the cogs of your brain reminding you -- To get things started .. Need resistance / for more inductance to get things started .. or your dealing with caged squirrels ...
Short of Torque !

 

[ipf]

Just the cogs of your brain reminding you -- To get things started .. Need resistance / for more inductance to get things started .. or your dealing with caged squirrels ...
Short of Torque !

Seemingly so......or just a reaction induced on re-reading...after spotting your 'thumb'.
Working on 'slip rings' I'm never short of torque, though