12v or 24v ?

[meiamaro]

Can someone tell me the advantage of 24v winch over a
12v winch?
Is it pulling power or longer power ect??

Cheers Ian.

[murcod]

Power = Voltage X Current

So, 24V will allow a powerful motor to operate with half the current draw of the equivalent 12V motor (in theory anyway!)

[meiamaro]

So more power for less current = the abillity to winch longer and
stronger.
understood.

Cheers Ian.

[bru21]

not really the energy is the same 12vx500a = 24vx250a. the main difference is less energy is wasted in resistance. a 12v spools no load faster, a 24 marginly faster at full load and the ability of a handful of lbs more at full load.

[chimpboy]

A 12V winch is extremely well suited to a vehicle with 12V electrics, while a 24V winch is extremely well suited to a vehicle with 24V electrics.

That's the main reason you'd choose one over the other.

Jason

[81 rangie]

well i dont know how aplicable it is in the car , but for a certain amount of power, the higher the current the more power loss Ploss=I(squared)R. so if you transmit at 24 volts rather than 12 you will get less power loss

[meiamaro]

OK!!????
So what is the advantage of 24v winching in the OBC trucks
and do all run 24v.
Seems like a lot of extra effort for little gain,
I still dont fully understand, sorry guys.
And yes i've just finnish watching OCB 2005 on DVD.(exellent).

Cheers Ian.

[bru21]

they don't all rund 24 volt.
some run 12volt motors on 24 volts, normally in one direction and 12 the other. in my opinion it is stupid. i have seen one truck eat 3 motors at $450-600 each in one day. childish lame way of getting a quicker winch only to dnf with winch failure.

fast winches are better in hydralic, a mate hes his pulling 38m/min at full load, day in day out. that said no more q's about this certian winch.

resistance halves on 24v. i wouldn't bother as you can't charge 2 batteries effecively one is the limiting factor (like why you don't mix 3 good d's and one bad in a torch), and you cannot winch on 24 whilst simultaneously charging at 12 as it short circuits, so a 24v alt is the go. once again the more different you make your truck for a little advantage the more you loose when it lets go and you need parts in a hurry

[80UTE]

Ive had 12v himount but due to voltage drop at high loads that was making the engine ECU shut down and GPS to drop out i set up an independant 24v system using a second 24v alternator. When i first done it i replaced the winch motor with a 24v Warn motor and it worked so much better than the 12v system i was rapt. At near full load the voltage was dropping to 24v (alt charges at around 28-30v) i did however stall the winch on a really hard pull (broke the 11mm plasma) and if you stall with a 24v winch it just melts the motor com. I needed to get the winch running quickly for my next trip so i refitted the 12v 2.5hp motor i had with 24v going into it and whow did it work well then. I made some enquiries with other comp guys and they said that motor life would be reduced but thats the price for performance. I fitted a new 12v 6HP Warn motor and small air comp to pump cooling air through it for the Vic Winch and it performance is excellent. The main thing i must always remember is to make sure not to stall. Stop the winch before and rerig the pull. I have also heard from a an Electrical Engineer that lower voltage motors have heavier windings to handle the higher amperages compared to a similar higher voltage motors.

Wally