AC power challenge Share  Email this topic  LinkBack Topic URL  Retweet this Topic  Share Topic on Google+  Like this Topic  Share on Facebook  Digg this Topic  Reddit this Topic  Share on Tumblr Options  Watch this topic  Print this topic View » Normal Threaded

Previous Topic Next Topic

BenP		#1 Posted : 15 January 2024 20:46:56(UTC) Retweet
Joined: 04/02/2021(UTC) Posts: 344 Location: Michigan, Ann Arbor		This request perhaps sounds silly, but I need analog AC power to test some new eBay acquisitions, but have no access to my classic Marklin white transformers. Instead I have only Z-type 10V DC transformers and MS2 digital 18V AC power. The latter also has a variable 3-12V DC power supply. Can I somehow use these available power supplies to run vintage AC locs? Reversing pulse is not needed. (I prefer not having unregulated full 18V power on test track). Ben Edited by user 21 January 2024 16:07:40(UTC)  | Reason: Not specified
		Digital M (+ some K) track layout with mostly vintage rolling stock and accessories, and small Z scale layout. https://youtube.com/play...0kgVYbh0CeDTF-bYXoD_2-V9
1 user liked this useful post by BenP		marklinist5999
User Profile View All Posts by User View Thanks

	Wish to join the discussion?! Login to your marklin-users.net community | Forum accountor Register a new forum account. Or Connect via Facebook

marklinist5999		#2 Posted : 15 January 2024 22:34:52(UTC) Retweet
Joined: 10/02/2021(UTC) Posts: 3,153 Location: Michigan, Troy		Ben, where are your 16 volts ac trafos? Don't invite trouble. DC current usually is safe for an ac motor. It may run faster, and draw more power.
User Profile View All Posts by User View Thanks

BenP		#3 Posted : 15 January 2024 22:45:23(UTC) Retweet
Joined: 04/02/2021(UTC) Posts: 344 Location: Michigan, Ann Arbor		Originally Posted by: marklinist5999 Ben, where are your 16 volts ac trafos? Don't invite trouble. DC current usually is safe for an ac motor. It may run faster, and draw more power. Thx; will try. HO layout is all packed and stored for upcoming move. I was not clever enough to bring an AC unit with me. Just a small Z layout at my current place, until I have space to rebuild.
		Digital M (+ some K) track layout with mostly vintage rolling stock and accessories, and small Z scale layout. https://youtube.com/play...0kgVYbh0CeDTF-bYXoD_2-V9
1 user liked this useful post by BenP		marklinist5999
User Profile View All Posts by User View Thanks

mike c		#4 Posted : 16 January 2024 01:52:01(UTC) Retweet
Joined: 28/11/2007(UTC) Posts: 7,902 Location: Montreal, QC		You can get a straight 16VAC output from the AC leads on a lot of DC transformers. To test an AC analog locomotive, you can also attach leads from a 9V battery to the wheels and slider Hope this helps Regards Mike C
2 users liked this useful post by mike c		BenP, marklinist5999
User Profile View All Posts by User View Thanks

H0		#5 Posted : 16 January 2024 07:10:52(UTC) Retweet
Joined: 16/02/2004(UTC) Posts: 15,268 Location: DE-NW		Originally Posted by: BenP This request perhaps sounds silly, but I need analog AC power to test some new eBay acquisitions Older H0 Märklin comes with an AC/DC motor, so running on DC is no issue. Digital locos may not respond to DC because of the decoder, but analogue locos without decoder will work fine.
		Regards Tom --- "In all of the gauges, we particularly emphasize a high level of quality, the best possible fidelity to the prototype, and absolute precision. You will see that in all of our products." (from Märklin New Items Brochure 2015, page 1) ROFLBTCUTS
2 users liked this useful post by H0		marklinist5999, BenP
User Profile View All Posts by User View Thanks

H0		#6 Posted : 16 January 2024 07:12:23(UTC) Retweet
Joined: 16/02/2004(UTC) Posts: 15,268 Location: DE-NW		Originally Posted by: marklinist5999 It may run faster, and draw more power. Why would a loco run faster on 16 V DC than it does on 16 V AC?
		Regards Tom --- "In all of the gauges, we particularly emphasize a high level of quality, the best possible fidelity to the prototype, and absolute precision. You will see that in all of our products." (from Märklin New Items Brochure 2015, page 1) ROFLBTCUTS
1 user liked this useful post by H0		marklinist5999
User Profile View All Posts by User View Thanks

marklinist5999		#7 Posted : 16 January 2024 13:21:42(UTC) Retweet
Joined: 10/02/2021(UTC) Posts: 3,153 Location: Michigan, Troy		Because the DC current is steady without cycles. Cogging of the armature commutator is not measurable.
1 user liked this useful post by marklinist5999		BenP
User Profile View All Posts by User View Thanks

BenP		#8 Posted : 21 January 2024 13:53:49(UTC) Retweet
Joined: 04/02/2021(UTC) Posts: 344 Location: Michigan, Ann Arbor		Originally Posted by: marklinist5999 Ben, where are your 16 volts ac trafos? Don't invite trouble. DC current usually is safe for an ac motor. It may run faster, and draw more power. Thx for the lesson. I did not realize that variable DC can power AC motors, so Märklin Z transformer solves the loc test needs I have ( it also has 10V AC accessories out). Ben
		Digital M (+ some K) track layout with mostly vintage rolling stock and accessories, and small Z scale layout. https://youtube.com/play...0kgVYbh0CeDTF-bYXoD_2-V9
1 user liked this useful post by BenP		marklinist5999
User Profile View All Posts by User View Thanks

hxmiesa		#9 Posted : 21 January 2024 16:17:22(UTC) Retweet
Joined: 15/12/2005(UTC) Posts: 3,520 Location: Spain		Originally Posted by: BenP MS2 digital 18V AC power. If this power source is for powering the MS2 unit, you can use it together with some pairs (at least 3) of anti-parallel diodes, in series with the power. For each pair of anti-parallel diodes the voltage drop is around 0,7V. The anti-parallel position of the diodes will allow the full AC wave to get to the track.
		Best regards Henrik Hoexbroe ("The Dane In Spain") http://hoexbroe.tripod.com
		WWW
User Profile View All Posts by User View Thanks

BenP		#10 Posted : 21 January 2024 16:25:00(UTC) Retweet
Joined: 04/02/2021(UTC) Posts: 344 Location: Michigan, Ann Arbor		Originally Posted by: hxmiesa Originally Posted by: BenP MS2 digital 18V AC power. If this power source is for powering the MS2 unit, you can use it together with some pairs (at least 3) of anti-parallel diodes, in series with the power. For each pair of anti-parallel diodes the voltage drop is around 0,7V. The anti-parallel position of the diodes will allow the full AC wave to get to the track. Can you draw the arrangement for me. I am novice with this type of electrical. Ben
		Digital M (+ some K) track layout with mostly vintage rolling stock and accessories, and small Z scale layout. https://youtube.com/play...0kgVYbh0CeDTF-bYXoD_2-V9
User Profile View All Posts by User View Thanks

hxmiesa		#11 Posted : 23 January 2024 08:49:44(UTC) Retweet
Joined: 15/12/2005(UTC) Posts: 3,520 Location: Spain		Originally Posted by: BenP Originally Posted by: hxmiesa Originally Posted by: BenP MS2 digital 18V AC power. If this power source is for powering the MS2 unit, you can use it together with some pairs (at least 3) of anti-parallel diodes, in series with the power. For each pair of anti-parallel diodes the voltage drop is around 0,7V. The anti-parallel position of the diodes will allow the full AC wave to get to the track. Can you draw the arrangement for me. I am novice with this type of electrical. Ben Maybe this will explain it; (In the picture, it is the BOTTOM PART that shows what I am referring to) This is the thread from where I found the pic; https://ogrforum.ogaugerr.com/topic/voltage-drop-for-dispatch-board
		Best regards Henrik Hoexbroe ("The Dane In Spain") http://hoexbroe.tripod.com
		WWW
1 user liked this useful post by hxmiesa		BenP
User Profile View All Posts by User View Thanks

H0		#12 Posted : 23 January 2024 09:29:50(UTC) Retweet
Joined: 16/02/2004(UTC) Posts: 15,268 Location: DE-NW		Originally Posted by: marklinist5999 Because the DC current is steady without cycles. Cogging of the armature commutator is not measurable. With 16 V AC, the voltage floats between +22.6 V and -22.6 V to make it as efficient as 16 V DC. Light bulbs are not brighter with 16 V DC than with 16 V AC. Not much difference in speed to be expected with a Märklin AC/DC motor.
		Regards Tom --- "In all of the gauges, we particularly emphasize a high level of quality, the best possible fidelity to the prototype, and absolute precision. You will see that in all of our products." (from Märklin New Items Brochure 2015, page 1) ROFLBTCUTS
User Profile View All Posts by User View Thanks

Users browsing this topic

Guest (2)