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Search took 0.00 seconds. Search: Posts Made By: Jorma
Forum: Electrical: Batteries, Generators & Solar 24-04-2017, 12:24
Replies: 30
Views: 6,503
Posted By Jorma
Re: How to protect the alternator-house bank connection AFD switch?

I think the voltage will go up, if the current has nowhere to go and the regulator does not have correct information about voltage (as the service switch is left open). Once the voltage is high...
Forum: Electrical: Batteries, Generators & Solar 23-04-2017, 12:42
Replies: 30
Views: 6,503
Posted By Jorma
Re: How to protect the alternator-house bank connection AFD switch?

This is a little bit confusing. Think a regulator that is hooked to the house battery (power-in; nro 2 in MC-614) as is the sensing wire. I would think that the alt will start pushing current with no...
Forum: Electrical: Batteries, Generators & Solar 20-04-2017, 13:17
Replies: 30
Views: 6,503
Posted By Jorma
Re: How to protect the alternator-house bank connection AFD switch?

Thank you all for comments and directions to go.

The original question was how to protect the alternator - house bank connection. I’ve learned so far from the above:

1. During normal cruising,...
Forum: Electrical: Batteries, Generators & Solar 19-04-2017, 12:55
Replies: 30
Views: 6,503
Posted By Jorma
Re: How to protect the alternator-house bank connection AFD switch?

Nice idea Fuss! Have to consider it. Many advantages.

I talked to Balmar support (great service as always) and got one more idea. That is using an AFD switch, but cutting the brown ignition wire...
Forum: Electrical: Batteries, Generators & Solar 19-04-2017, 09:30
Replies: 30
Views: 6,503
Posted By Jorma
How to protect the alternator-house bank connection AFD switch?

I am replacing my Volvo 115 A alternator with Balmar AT-200 with MC-614. I am planning to run the VSR (single sense) from house bank to starter battery. All the chargers (alternator, shore power)...
Forum: Electrical: Batteries, Generators & Solar 01-03-2017, 13:50
Replies: 0
Views: 1,303
Posted By Jorma
Balmar at-200 on Volvo Penta D2-55?

I am planning to replace the original 115A amp (Hitachi?) with 4" dual foot (J-180?).

Has anyone fitted Balmar at-200 on Volvo Penta D2-55C? There is thread on AT-165.
When you run Balmar...
Forum: Electrical: Batteries, Generators & Solar 07-11-2011, 12:05
Replies: 84
Views: 28,681
Posted By Jorma
Re: New Lithium-Ion Batteries

T1 Terry,

Still one for clarification of the charging curve:

If I get it right, one of the greatest things with LiFePO4 batteries is, that there will be no absorption phase of reduced charge...
Forum: Electrical: Batteries, Generators & Solar 06-11-2011, 01:53
Replies: 84
Views: 28,681
Posted By Jorma
Re: New Lithium-Ion Batteries

T1 Terry,

just one more thing:

Do you need to charge the LiFePO4 batteries to full every so often (like LA’s) or can you cycle between lower levels of SOC (like 40-80%) for extensive period for...
Forum: Electrical: Batteries, Generators & Solar 06-11-2011, 01:15
Replies: 84
Views: 28,681
Posted By Jorma
Re: New Lithium-Ion Batteries

Thanks again T1 Terry,

it seems 1 C is OK and probably even higher. At the moment I am just trying build an understanding of the LiFepo4 -thing - not being a professional myself.

I have a...
Forum: Electrical: Batteries, Generators & Solar 06-11-2011, 00:43
Replies: 84
Views: 28,681
Posted By Jorma
Re: New Lithium-Ion Batteries

Hi T1 Terry,

what is the charge acceptance rate of LiFePO4 cells? If I keep the voltage limited up to 3.5 V/cell, will I ever see 3C currents (DOD 30-80%)?

With flooded cells or AGMs you...
Forum: Electrical: Batteries, Generators & Solar 05-11-2011, 15:12
Replies: 84
Views: 28,681
Posted By Jorma
Re: New Lithium-Ion Batteries

Thanks T1 Terry for your info - learning a lot.

I have looked for max charging currents of LiFePO4 batteries. I see figures from 0.4C to 3 C. What is your view- how high can the charging current...
Forum: Propellers & Drive Systems 05-11-2011, 13:55
Replies: 19
Views: 29,955
Posted By Jorma
Re: Volvo Saildrives - Type of Oil?

I got the same recommendation from Volvo, but used the old ATF for one more season - with no problems. This winter we will change to the same oil as in the engine (D2-55) as recommended by Volvo...
Forum: Engines and Propulsion Systems 04-11-2011, 07:48
Replies: 11
Views: 16,948
Posted By Jorma
Re: Volvo Penta Workshop Manuals

Thanks GordMay,

Just what I needed.
Forum: Engines and Propulsion Systems 04-11-2011, 06:52
Replies: 11
Views: 16,948
Posted By Jorma
Re: Volvo Penta Workshop Manuals

Any workshop manuals for Volvo D2-55C and saildrive S130 ?
Forum: Electrical: Batteries, Generators & Solar 03-11-2011, 14:04
Replies: 84
Views: 28,681
Posted By Jorma
Re: New Lithium-Ion Batteries

Thanks T1 Terry

for shearing the information and pointing out the difference between LiFePO4 and other types of lithium batteries - especially on price. LiFePO4 is a realistic choice today.

If...
Forum: Propellers & Drive Systems 12-09-2011, 02:23
Replies: 13
Views: 7,005
Posted By Jorma
Re: MaxProp Ecowind

Hi Gael,

thanks for sharing your experiences. You are one of the first to use the Ecowind propeller.

You report that the reverse "is smooth". How about thrust - about the same as forward?
...
Forum: Propellers & Drive Systems 08-09-2011, 13:14
Replies: 13
Views: 7,005
Posted By Jorma
Re: MaxProp Ecowind

Don Lucas,

my interest on EcoWind is more practical/technical than economical. I have had problems with my Volvo 3 blade prop (poor reverse due to blades collapsing - too high pitch (18x16)).
...
Forum: Propellers & Drive Systems 07-09-2011, 05:35
Replies: 13
Views: 7,005
Posted By Jorma
Re: MaxProp Ecowind

Summer has gone. Any new practical experince on MaxProp Ecowind? Interesting propeller.
Forum: Propellers & Drive Systems 29-08-2011, 13:40
Replies: 71
Views: 30,214
Posted By Jorma
Re: Feathering Prop Choices / Manufacturers

Lars_L

The curved blades of Volvo-Penta three-blade prop work two ways: they have a rather large weight on the outer edge of the prop which helps to keep it open by centrifugal force as you...
Forum: Propellers & Drive Systems 29-08-2011, 08:02
Replies: 71
Views: 30,214
Posted By Jorma
Re: Feathering Prop Choices / Manufacturers

We did some measurements on our Volvo 3 blade problem of lacking reverse power.

It turned out that those perceptions were right. There is less than 50% power available, when comparing to forward...
Forum: Propellers & Drive Systems 11-08-2011, 13:25
Replies: 71
Views: 30,214
Posted By Jorma
Re: Feathering Prop Choices / Manufacturers

Hi Jonathan,

what are the dimensions of your Volvo-propleller? Mine is 18x15 and I have just learned that 20x13 would do much better reversing. I was also surprised to learn that cavitation has a...
Forum: Propellers & Drive Systems 09-08-2011, 06:52
Replies: 71
Views: 30,214
Posted By Jorma
Re: Feathering Prop Choices / Manufacturers

I have a 3 blade folding Volvo on my 41 ft cruiser, saildrive. The problem with it has been lack of power on reverse - not enoung accelaration when backing in strong wind take-offs in marinas. When...
Forum: Marine Electronics 18-02-2009, 13:04
Replies: 199
Views: 47,227
Posted By Jorma
Does anybody else have practical experience with...

Does anybody else have practical experience with BGAN equipment on a sailboat?
Is it only usable in calm harbors or also under way?
Forum: Marine Electronics 17-02-2009, 11:51
Replies: 199
Views: 47,227
Posted By Jorma
Thank you Idiens for a quick reply, this is...

Thank you Idiens for a quick reply,

this is very valuable information that you are sharing with us since there is very little hands -on experience with BGAN in sailboats.

Is BGAN so sensitive...
Forum: Marine Electronics 17-02-2009, 10:53
Replies: 199
Views: 47,227
Posted By Jorma
Idiens, have you had any experince offshore...

Idiens,

have you had any experince offshore with your BGAN system since your last posting?

BGAN equipment is costing now from $ 1500, so it is a real bargain if it works well also afloat...
Showing results 1 to 25 of 25

 
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