Time Switch : S317.1.22 & Q346 comparison (Sangamo Weston) скачать в хорошем качестве

Time Switch : S317.1.22 & Q346 comparison (Sangamo Weston)

In this video, we compare the differences between a Quartz-driven Rate Changer & a traditional synchro-motor driven one. Enjoy. :D OK, lets get into it then. The one to the left is the Quartz driven Rate Changer and the right-hand one is the synchro-powered one. Lets look at their characteristics for comparison: Unit's Supply Supply Main Rate Changer Model voltage Frequency contact (A) contact (Amps) --------------------------------------------------------------------------------------------- Q345 / 346 240v 50/60Hz 100A 2A S317.1.22 240v 50Hz only 80A 2A ---------------------------------------------------------------------------------------------- Both have power cut backups. Unit's Model Backup type Backup duration --------------------------------------------------------------------------------------------- Q345 / 346 Battery, 1.2 volt 100 hours (4 days, 4 hrs) S317.1.22 Spring Reserve Unknown at time of video ---------------------------------------------------------------------------------------------- Do keep in mind that the synchro motor driven unit is the older of the two Rate Changers and not by a few months or a year-or-few. This is why there is a switching capacity difference between the two, and not because Sangamo decided to somehow, make the Quartz model a 'better unit'. Really though, Horstmann had the lead in the 1970s with a 100A Rate Changer, and Sangamo never really caught up with that until the introduction of their quartz driven Rate Changers. __________________________________________ Click here to see a 100A Horstmann synchro-powered Rate Changer from 1970s:    • Time Switch : Horstmann VA mk9 SRS 2 Rate ...   ----------------------------------------------------------------------- If I had to take a guess, I would say at least a good decade or maybe even 15 years time difference between them. The Quartz driven model only became viable when electronics production came down to the same cost as making a synchro-driven model. The thing is though, with all the investment in electronics production and the eventual progression of electronics actually becoming cheaper through automation ( and dare I say it: Outsourcing) the synchro-motor timeswitches and Rate Changers were dropped, and not only by Sangamo! Of course, the death-knell for any Rate Changer or timeswitch that operated an half-decent load which was supplied as electricity board equipment was of course.... The Radio Teleswitch. ______________________________________ Click here to see a Radio teleswitch:    • Time Switch : Radio Teleswitch, Sangamo Sc...   -------------------------------------------------------------- What I will say on that though, is timeswitches and Rate Changers will eventually get their revenge: They have a "sting-in-the-tail" against the Radio Teleswitch. Long after Radio Teleswitches become extinct by the discontinuation of UK Long-Wave broadcasts.... The timeswitches and Rate Changers will live on as independently operating units. MEGA YAY. :D So, there it is. This video and the subjects in it can be found in the Time Switches and Rate Changers Playlist, along with a whole pile of others, so please do dive in there and have a look. :-) ---------------------------------------------------------------------- Click here for the black-cased S317.1.22:    • Time Switch : Sangamo Weston S317.1.22 Rat...   ----------------------------------------------------------------------- ----------------------------------------------------------------------- Click here for the Q346 with the red clock face:    • Time Switch : Sangamo Weston Q346 Rate Cha...   ------------------------------------------------------------------------ Thanks for watching. -Wayne's Electrical. Video Number: VN-0112 ------------------------------------------------------------------------------- Tags used in this video: Timer, Timeswitch, Time switch, Timeclock, Time clock, Rate Changer, Tariff Changer, Tariff switcher, Off-peak, Off-peak electricity, Cheap rate electricity, Night rate electricity, Economy seven, Economy 7, Economy ten, Economy 10, Synchronous motor driven, Spring reserve, Spring backup, Electronic quartz driven, Battery backup, Power cut backup, Sangamo, Sangamo Weston, Q346, Q 346, Q-346, S317.1.22, S 317.1.22, S-317.1.22, S317122, Wayne's Electrical, Waynes Electrical, --------------------------------------------------------------------------------- -end.