Live Stoners Live Stoner Chat January - 04/2020

[Dr Fluff]

good to see you again zan!

Hey hey @Master_gRoshi good to see you too and nice to be back!

 

[Master_gRoshi]

Hey hey @Master_gRoshi good to see you too and nice to be back!

hopefully you and all whom are close to you have been safe happy and healthy during the times!

 

[Master_gRoshi]

same goes for the rest of you lot!
stay safe stay stoned.
puff puff puff
we are on a strict no pass order so keep on puffing
bring your own device or papers!

 

[R_HIDIA]

Contactors are devices designed to deal with the "in rush current" when electrical device are turned on in order to stop the contacts in the timer fusing.
Traditionally they were used with HID set ups when high current would blow fuses/trip circuits and as mentioned fuse timers.
To get around this problem contactors were used to even out the current and have zero crossing contacts to stop fusing.
When LED lights first became popular, the units were quite small and didn't have too much of an "in rush current". Times have moved on and now we are seeing much higher powered units and those unit being use in multiple numbers.
Some LEDs are built with a soft start, which stops the large "in rush current" you would need to check with the manufacturer if this is the case.
So the issue of "in rush current" becomes an issue again.
In a relatively small set up using a contactor should be all you need!
For a 600W light a LUMII 24 Hour Heavy Duty Timer will sort you out, no need for a contactor, the timer costs £10 and no need for a contactor. Higher current will need a contactor. Really big loads will need a heftier solution will be needed. A combination of surge arresters and temporary overvoltage protection from the range of devices available to protect both the power circuit and the information or control circuit. Some devices are adapted for installation in a main low voltage board or in luminaire enclosures.
To fully protect the investment in your LED lighting systems, be sure your installation includes complete protection with zero-crossing contactors , surge protection devices, and voltage threshold tripping devices.

Check this article for "Solve the mysterious LED Electrical network problem"
https://blog.se.com/power-managemen...ve-mysterious-led-electrical-network-problem/

Thanks for posting this. I’ll have a read right now... I’m running a HLG 550 v1 knockoff from Meijiu

 

[Dr Fluff]

Thanks for posting this. I’ll have a read right now... I’m running a HLG 550 v1 knockoff from Meijiu

You should be fine with the Lumi timer for that and it is nice and cheap.
I'm not sure where you are but if you in the UK the Lumi heavy duty timer is £10 if your in the USA A heavy duty time will be around $20
If in the USA something like the Intermatic TN311K 15-Amp Heavy Duty Lamp and Appliance Timer which is rated at 1875 watts .
there are two versions 2 prong and 3 prong. The tn-111 is a 2 prong plug and only accepts 2 prong plugs ( no ground). The tn- 311 is a 3 prong and accepts 3 prong plugs.
Price is around $15

 

[Dr Fluff]

Smoke out time
Roll your own, no passing is in effect!
:smoking::smoking:

For those who like a dirty bassline
This one is for you!


Peace and love brothers and sisters
Stay safe
​

 

[TheMongol]

@arty zan maaaaaan where have ya been?

 

[420Forever]

same goes for the rest of you lot!
stay safe stay stoned.
puff puff puff
we are on a strict no pass order so keep on puffing
bring your own device or papers!

<< has bong, will not pass ...actually, i never pass it anyway, even when there izn't a pandemic goin on ppp

 

[Mossy]

@arty zan @TheMongol @420Forever @Master_gRoshi ... ..Breathe one with me...



If any of you coughs....I'll be bleaching the cups....

 

[Anthropolis]

@R_HIDIA this probably isn't heavy duty enough if you're firing at 35A haha, that's some major amperage, but I use the good ol Hydrofarm 7-Day digital (US plug and availability) https://www.hydrofarm.com/p/autopil...able-timer-1725w-15a-1-second-on-off/tm01715d
and it claims 15A / 1725W. It fires up a Mars 600w (prob about 275w actual) and two no-name blurples "600w claim lol" probably about 180w actual each, without any issues. But again, if that driver really pulls 35A it might melt the F outta that Hydrofarm lolol.