ESC blow ups

[Flying Scotsman]

I am currious as to how many boaters have had problems with their ESC blowing up when they were WELL WITHIN THE STATED LIMITS, and please no silly prop use.
State... ESC...power (series or parallel).... motor....prop....hull...run time...number of runs with no problems...did you change the prop prior to no problems"?

Douggie

[video200]

hydra 240. 5c elite 4800 single pack. feiago 9XL. x640. H&M drifter S. around 50 sec. first and last on on that ESC.

swaped over to a H&M 120 amp esc and ran that for around 3 months til castle sendt me a new 240 that works so far.

[Steven Vaccaro]

I would like to know how the person knows they were "WELL WITHIN THE STATED LIMITS"? Logger or estimated? A setup like video200's was well, well within the limits.

[video200]

the only way i realy know it was well within the limits would be that i used a ESC that was rated for half the amps less then 1 hour afterwords and that worked nicely for months.

[Flying Scotsman]

Steven, As stated on your own site the XYZ ESC is rated for XYZ

Douggie

[Flying Scotsman]

May, I explain futher most ESC expectations reported by the manufacturer are false for BOAT USEAGE. Listen to users reports.
Steven , you are a straight shooter and I truly respect your fervour for FE

Douggie

[Ub Hauled]

Hydra 240, 4S Elite 5300, M447, NEU 1521/1D
Burned on the Bench after plugging it in


Hydra 180HV, 10S Elite 4800, X448, NEU 1527/1.5Y
Burned about 10 seconds after placed in the water.
CC sen replacement w/o a problem

[Steven Vaccaro]

When in doubt read here http://forums.offshoreelectrics.com/...read.php?t=271 . Run an esc at 70% of the rated voltage and amperage and your golden. Any problems and you should have no problem with the warranty. Knowing your motor is going to pull only 70% is the problem. How many people have the equipment to tell?

[Flying Scotsman]

The Eagle Tree Micro Logger Product ID: etr-MPRV3-LEADS-150 is a great device and cheap insurance, especially with the costs of quality ESCs and motors. The old rule of run a new setup for about 45 seconds and check temperatures also works but will not tell you amp draw.
This thread was started so see if there have been any trends as to ESC failures. Manufacturer, particular models, did you water cool if it was not provided, out of the box failures and warranty experience especially with Asian models.
I should have been more specific.

Douggie

[detox]

Going by Castles NEW chart I bet most everyone was outside the limits:

http://www.castlecreations.com/suppo..._boat_apps.pdf

Castle Hydra 120, Neu 1515 1y, 4s1p 4900mah, x442...ESC up in flames after 10 seconds while running in my 27" Rigger Insanity. Next time I will use Hydra 240 with atleast 9800mah.



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[Bill-SOCAL]

I've only ever cooked one ESC. a Schulze 40.160. Too much load on a Lehner 3060/10. Motor seized when the magnets let go and that cooked the ESC. In all fairness I was turning a 72mm prop 'tweaked" WAAAY up for some SAWS runs.

I've had good luck in general with ESCs. Motors are another thing however.

Lehner 2280/11 - too much boat and prop
New 1527/1.5Y X2 - same as above
Lehner 3060/10 + Schulze 40.160

Lesson? Use less prop and things tend not to cook!!!

BTW - in every one of the cases above there were NEVER any hot temps. 125 max on all the previous runs. Then POOF!!!!

[Fluid]

You're saying that the temperature of the ESC caps never exceeded 125F?????



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[Boatman]

I have seen a 4S setup on a blackjack motor in a vortex hydro blow a venom 120A after just 10 feet of running with a proven setup. Just a simple esc change and poof! There was however some H2O involved I think. You cant look over small details.

[Bill-SOCAL]

You're saying that the temperature of the ESC caps never exceeded 125F?????

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Not prior to the motors going. That is why it was so odd. Temps were the Holy Grail, but in my situation a poor predictor. The 40.160s came through without a hitch. And the one that was on the 1527s is still in use today in My Sniper. The one that I lost was a brand new one with only a dozen runs.

[Fluid]

Odd. It is my experience - and that of my fellow club members - that temperatures of over 125F on the caps are quite common after a race heat, with numerous ESCs....ditto on cells and motors.



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