Small Change
Member
- Joined
- Sep 18, 2021
- Messages
- 9
- Vessel Name
- M/V Change of Pace
- Vessel Make
- DeFever 40
Thank you for letting us be a part of your group.
It was recommended by our DeFever Group to contact the Trawler Forum for help.
Our issue is we have a DF40 with a Northern Lights M643 generator that is going to low voltage in a Bulk state charge on our new Mastervolt Plus charger which was replaced once after it damaged $2200 of on board equipment.
Mastervolt have been very good to us by getting the replacement to us in a timely manor since we live on our boat in the North Channel here in Canada.
The replacement was a new version of the Plus with 10 dip switches instead of 8.
The M/V Plus replaced an aging Xantrex Freedom 2000 combo charger/inverter (the Link 1000 was acting up).
We have not had any issues with the N/L M643 generator with only a 1000 hrs on it.
The M/V charger works great on shore power and also works great on our backup Honda 2000e but goes to a low of 90.2 volts when using the N/L generator during the “bulk” charge state.
Note; if the hot water heater kicks in the voltage does go back up to its normal 122.3 volts…go figure
We can “baby sit” the monitor on the charger(EasyView 5)and change the current load setting form the factory setting of 16A to 8A to maintain the 122volts but amps in bulk charge goes to58 amps instead of the 75 amp rating that we payed for but the most important part of this is the damage and potentially a fire that good be created by this problem.
No wiring changes have been made other than the direct replacement of the Xantrex to the M/V.
The N/L folks have stated Since your generator set is wired for straight 120 VAC the issue can’t be due to imbalanced loads and is more than likely due to the excessive non-linear load of you charger. When your water heater energizes with purely resistive load it helps to mitigate the negative effects of the charger. I do not believe that it is caused by any problem with the generator but can’t say with a 100% assurance since your generator is older and I do not know the condition of the windings.
I have read that there are isolation transformers on the mart that are specifically designed to filter the effects of non-linear loads but I have not seen any in operation.
If anyone has experienced this problem we would love to find a resolution.
With thanks Paul
It was recommended by our DeFever Group to contact the Trawler Forum for help.
Our issue is we have a DF40 with a Northern Lights M643 generator that is going to low voltage in a Bulk state charge on our new Mastervolt Plus charger which was replaced once after it damaged $2200 of on board equipment.
Mastervolt have been very good to us by getting the replacement to us in a timely manor since we live on our boat in the North Channel here in Canada.
The replacement was a new version of the Plus with 10 dip switches instead of 8.
The M/V Plus replaced an aging Xantrex Freedom 2000 combo charger/inverter (the Link 1000 was acting up).
We have not had any issues with the N/L M643 generator with only a 1000 hrs on it.
The M/V charger works great on shore power and also works great on our backup Honda 2000e but goes to a low of 90.2 volts when using the N/L generator during the “bulk” charge state.
Note; if the hot water heater kicks in the voltage does go back up to its normal 122.3 volts…go figure
We can “baby sit” the monitor on the charger(EasyView 5)and change the current load setting form the factory setting of 16A to 8A to maintain the 122volts but amps in bulk charge goes to58 amps instead of the 75 amp rating that we payed for but the most important part of this is the damage and potentially a fire that good be created by this problem.
No wiring changes have been made other than the direct replacement of the Xantrex to the M/V.
The N/L folks have stated Since your generator set is wired for straight 120 VAC the issue can’t be due to imbalanced loads and is more than likely due to the excessive non-linear load of you charger. When your water heater energizes with purely resistive load it helps to mitigate the negative effects of the charger. I do not believe that it is caused by any problem with the generator but can’t say with a 100% assurance since your generator is older and I do not know the condition of the windings.
I have read that there are isolation transformers on the mart that are specifically designed to filter the effects of non-linear loads but I have not seen any in operation.
If anyone has experienced this problem we would love to find a resolution.
With thanks Paul