I have an ME1616 in my 10 meter sailboat (6.5 tons). It is the motor in the Thunderstruck 12kW liquid cooled sailboat kit:
https://www.thunderstruck-ev.com/12kw-sevcon-liquid-cooled-sailboat-kit.html
I have lots of info on my installation here:
http://dan.pfeiffer.net/10m/electric_drive.htm
I think if you want the capacity to run at sustained high output levels (over 65%) you NEED active cooling. I also think its best to design your system so that normal operation is well below the non-cooled continuous rating. For my installation I am rarely running at more than 5.5 knots which is about 3kW or 62 amps. Well within the continuous rating for the ME1616 without cooling (6.7kW). But I have a cooling system that will let me run up to full power at 12kW though in practice the boat seems to max out at 11kW and 7 knots? A lot depends on conditions like wind, waves, and bottom fouling so it's hard to be precise. And at that output level I would run out of battery in 65 minutes? But I have plenty of reserve power to punch through a tough harbor entrance or scoot out of the way of trouble when needed. Probably more than the diesel had (but not for as long).
The 6kW may be an approximation of the continuous rating without cooling. I have these notes about Motenergy motors including the ME1616:
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Montenergy ME1616 Motor Details From Thunderstruck
IPM Water Cooled motor for up to 96 VDC battery systems,
and 250 amps continuous. This has the same stator and
rotor as the ME1507, but in a water cooled IP67 case. 7/8"
keyed shaft. Provide your own small radiator and a coolant
pump with a flow rate of 4-10 litres per minute. Max rpm
6000 Approx. 55 pounds.
When used in our kits, controllers will cut power when the
motor gets too hot, based on internal motor temp sensor.
Coolant temp leaving the motor should be under 230F/ 110C
with standard use, and up to 100C on the inlet side is
allowable. If controllers are adjusted for Field weaking
this rating would be lower.
From Montenergy email 11/2020:
1) The ME1304 is rated for 200 amps continuous
with water cooling, and 125 without water cooling.
2) The ME1616 is rated for 140 amps continuous without
water cooling. This is a lower specification as compared
to the ME1507, because the ME1507 has cooling fins on
the external case, and the case is thinner, in direct contact
with the windings and laminations.
3) We rate the ME1616 motor at 2 minutes, 600 amps.
This is form a cold start. If the motor is already at maximum
temperature, then this time and maximum current will be lower.
The ME1115 is good for about 125 amps, 1/2 the continuous
power as compared to the ME1616. Both will run the same
speed with 48 VDC.
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ME1115 max continuous current 125 amps @48V = 6,000 Watts
ME1115 max continuous current 150 amps @48V = 7,200 Watts *
ME1507 max continuous current 160 amps @48V = 7,680 Watts
ME1616 max continuous (w/o cooling) 140 amps @48V = 6,720 Watts
ME1616 max continuous (w cooling) 250 amps @48V = 12,000 Watts
* different rating from Motenergy web site
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Hope this helps.
Dan Pfeiffer
On 2024-08-13 12:15 am, Charlie wrote:
Anyone with ME1616 experience?
I am planning to run one at 48VDC, what is the actual kW available?
I tend to believe only the most conservative numbers, so I saw a post in EV Europe listing it as 6kW continuous when run at 48V with 2000rpm listed. (assuming it cant go faster than 2000 rpm at 48VDC?)
Here is the verbage:
- Power max 50kW@96V
- Power continuous 6kW@48VDC – 2000rpm – 12 kW@96VDC – 4000rpm
I would love to go to 96VDC but I do not think that is wise for all of the accessory systems on the boat and since i always find a way to arc something despite precautions.
Any other 48vdc recommendations? Thank you!!
