| Author | Message | ||
| R.C.Bishop
Rating: N/A |
My research does not provide specifics about grounding a house bank (thru inverter) directly to chassis, (in addition to grounded inverter). Maybe I haven't gone far enuf with it....  Would much appreciate any help on this.... Thhanx much. RCB '64Crown Supercoach (HWC) | ||
| Tom Caffrey (Pvcces)
Rating: N/A |
RCB, if your inverter is like any of the RV and boat ones that I've seen, the negative cable of the inverter needs to be hooked directly to the house battery negative terminal. Both positve and negative cables need to be short and large enough to handle surge maximums without excessive voltage drops, if you want the benefit of the performance the inverter was designed to give. This means that the connection to the chassis is not intended to carry any of the normal operating currents of the inverter. The inverter will require a ground for the AC input and the output of the inverter. At least some Heart models do not have the inverter chassis connected to the negative battery cable. If used in a boat, they very likely will get tied together in the installation. I hope this helps. Tom Caffrey PD4106-2576 Suncatcher | ||
| Lin Rating: N/A |
Since my house and start batteries are in the same area, they are both connected on the negative pole and ground to the chassia together. The positives are connected separately to their appropriate tasks. I also have a manual switch for contecting both positives together for emergency or charging. I is not highly sophisticated, but seems to work fine. | ||
| RC Bishop
Rating: N/A |
Thanx, Tom and Lin....I wired Inverter exactly as their instructions are...and seems, as you explained, Tom. Lin...your english is very clear, but do you mean that you connected the negative of both sets together battery to battery, or at the Chassis connection where the fuse is located? Thanx. RCB | ||
| Tom Caffrey (Pvcces)
Rating: N/A |
RCB, if a fuse is put in the negative side of a Heart inverter which is using a Link, it could cost you an inverter if the fuse pops. There is a warning in the Link book saying do not disconnect the negative side if the inverter is turned on. I missed that warning when I was doing some service work and I think I paid for it. It probably would be a good idea to put some labels in a few places to prevent accidents later on. HTH Tom Caffrey PD4106-2576 Suncatcher | ||
| R.C.Bishop
Rating: N/A |
Interesting...and thanx for the heads up on that. I don't recall seeing that in the Trace manual, but will sure look it over carefully.... RCB | ||
| Lin
Rating: N/A |
RC- Both the positive and the negative of the invertor could be considered attached directly to the house batteries although interupted by an automatic transfer switch (that defaults to the inverter if gen/shore power is not online). The house and coach batteries are right next to each other so the coach battery ground goes to the chassis through the same cable that grounds the house battery bank. There are quick disconnect arrangements for the negative on both battery banks. Were they not so close, I would have grounded each separately. My knowledge in this, and many other things, is rudimentry, so if there is a flaw in the system, I would not be aware of it. But it has worked for many years. |