Home |
Search |
Today's Posts |
#11
|
|||
|
|||
Noisy Guest
|
#12
|
|||
|
|||
Noisy Guest
I just made a honey of a deal on Honda's biggest inverter 3KW genset,
the EU3000is. I was bringing my little 1KW back for warranty service on the carb and this guy with a 5th wheel camper was unloading it onto the tailgate of his Dodge dually diesel pickup. "How do you like the 3KW?", I asked him. He said it was fantastic but wouldn't start his 15KBtu roof A/C and he was bringing it back to this dealer to trade it in on a camper twin Honda. I asked him how much he wanted for this one and he thought a minute and said $1800. I started it, hell it was brand new. "I'll give you $1500 cash within 30 minutes as soon as I go home to get it.", I tried. "Hmm...well, that's more than they're gonna give me on a trade. Deal!" We met at my bank to notarize the bill of sale and get away from the dealer's salesman that looked like he was going to kill me...(c; $1800 is the internet price. Dealer retail is $2K with prep and ad-on taxes about $2400. Man, you can hardly hear this little box run. SO quiet..... Why the boat genset manufacturers don't buy Honda's technology and make an econo-speed inverter genset is crazy. Engine speed has nothing to do with frequency. Until the load on it get over 1200 watts, the engine stays near its low economy speed around 1000 RPM. The 3.4 gallon tank will power a 750W load for TWENTY HOURS! With piston speeds so low, (even at full load it's only running 2500 RPM, not a constant 3600 RPM) it should last a lifetime. Output is 60.00007 Hz at no load and 60.0036 Hz at 3000 watts on my counter. Output voltage varies by 8 volts from no load to 3KW. The sine looks very clean on my scope with very little distortion, even at full load. It's much cleaner than a Heart in a boat. And there's NO dip in power as you jerk a hard load onto it. Must have some hefty filter caps in the inverter's input rectifiers. The actual alternator is a 3 phase, high voltage tiny little thing. Dry weight with the internal fiberglass Super Quiet case inside a square steel outer case is only 130#. Two can lift it easily and there is a wheel kit for it if you want. http://www.hayesequipment.com/eu3000is.htm Too bad its exhaust is impossible to weld and output dry stack to. It's all wrapped up inside the fiberglass and cooled with the blower in the engine. It'd make a helluva nice sailboat genset so compact. It's noise level is less than someone talking! The cabinet doesn't even get warm! It'd be so easy to make a boat model. Guess there isn't a market for it. |
#13
|
|||
|
|||
Noisy Guest
On Sun, 04 Jan 2004 03:18:07 GMT, Larry W4CSC wrote:
....snip Junk it. I did mine. If that damned series pass transistor ever shorts, you can kiss all your equipment hooked to it good bye when the 20-some volts hits them. You probably know this, but you can (actually, must) prevent that happening by putting a "crowbar" circuit across the output, after the fuse. This is just a large scr with a resistor from the bus to the gate with a 14 or 15 volt zener to ground. It doesn't conduct until the voltage exceeds the zener limit and then the scr shorts to ground, blowing the fuse and protecting the equipment. -- Larry W1HJF email is rapp at lmr dot com |
#14
|
|||
|
|||
Noisy Guest
On Sun, 04 Jan 2004 16:10:10 GMT, Larry wrote:
On Sun, 04 Jan 2004 03:18:07 GMT, Larry W4CSC wrote: ...snip Junk it. I did mine. If that damned series pass transistor ever shorts, you can kiss all your equipment hooked to it good bye when the 20-some volts hits them. You probably know this, but you can (actually, must) prevent that happening by putting a "crowbar" circuit across the output, after the fuse. This is just a large scr with a resistor from the bus to the gate with a 14 or 15 volt zener to ground. It doesn't conduct until the voltage exceeds the zener limit and then the scr shorts to ground, blowing the fuse and protecting the equipment. Nifty - I think I'll do that. Thanks. Later, Tom S. Woodstock, CT ---------- "We may say of angling as Dr. Boteler said of strawberries: Doubtless God could have made a better berry, but doubtless God never did and so, if I might be judge, God never did make a more calm, quiet, innocent recreation than angling." Izaak Walton "The Compleat Angler"(1653) |
#15
|
|||
|
|||
Noisy Guest
Got a call from Champion Honda that my little 1KW inverter EU1000i was
repaired (they replaced the carb as I suggested), this morning. Went over and was handed a $159 bill for the warranty service. After making a little....well a lot....of noise, I was told to leave the generator (bill not paid) and they'd call Honda about warranty payment. I'd like to publically thank Honda Power Products for settling with my dealer, this afternoon. Honda picked up the bill. I didn't even pay for the spark plug it didn't need (replaced 2 weeks ago) or the "valve adjustment" the technician sold me on the phone it didn't need. The new carb runs fantastic. Doesn't even have to be choked from cold! THANKS HONDA! I'LL BUY SOME MORE!! Larry EU1000i 1KW inverter genset EU3000IS 3KW inverter genset EG5000X 5KW genset Honda self-propelled lawn mower and my previous 12 Honda motorcycles, including the 305 Dream I've regretted selling since the 60's! |
#16
|
|||
|
|||
Noisy Guest
On Sun, 04 Jan 2004 16:10:10 GMT, Larry wrote:
On Sun, 04 Jan 2004 03:18:07 GMT, Larry W4CSC wrote: ...snip Junk it. I did mine. If that damned series pass transistor ever shorts, you can kiss all your equipment hooked to it good bye when the 20-some volts hits them. You probably know this, but you can (actually, must) prevent that happening by putting a "crowbar" circuit across the output, after the fuse. This is just a large scr with a resistor from the bus to the gate with a 14 or 15 volt zener to ground. It doesn't conduct until the voltage exceeds the zener limit and then the scr shorts to ground, blowing the fuse and protecting the equipment. -- Larry W1HJF email is rapp at lmr dot com Oh, I know. Does it have an output fuse? Mine didn't, just the AC line. |
#17
|
|||
|
|||
Noisy Guest
On Tue, 06 Jan 2004 06:18:18 GMT, Larry W4CSC wrote:
On Sun, 04 Jan 2004 16:10:10 GMT, Larry wrote: On Sun, 04 Jan 2004 03:18:07 GMT, Larry W4CSC wrote: ...snip Junk it. I did mine. If that damned series pass transistor ever shorts, you can kiss all your equipment hooked to it good bye when the 20-some volts hits them. You probably know this, but you can (actually, must) prevent that happening by putting a "crowbar" circuit across the output, after the fuse. This is just a large scr with a resistor from the bus to the gate with a 14 or 15 volt zener to ground. It doesn't conduct until the voltage exceeds the zener limit and then the scr shorts to ground, blowing the fuse and protecting the equipment. -- Larry W1HJF email is rapp at lmr dot com Oh, I know. Does it have an output fuse? Mine didn't, just the AC line. The Astron 40 I just checked didn't. I added one in series and stuck the crowbar after it. It does have foldback current limiting, but that won't necessarily protect equipment connected to it. -- Larry W1HJF email is rapp at lmr dot com |
#18
|
|||
|
|||
Noisy Guest
On Tue, 06 Jan 2004 18:35:30 GMT, WaIIy
wrote: On Tue, 06 Jan 2004 06:17:15 GMT, (Larry W4CSC) wrote: and my previous 12 Honda motorcycles, including the 305 Dream I've regretted selling since the 60's! Boy, those Honda Dreams were the envy of every guy in the neighborhood. Heck, I was happy with my Whizzer, though. Best, most troublefree motorcycle I ever owned...... The red plastic fenders never rusted a bit! |
#19
|
|||
|
|||
Noisy Guest
Foldback current limiting assumes the pass transistor doing the
folding back is a functional device, not welded from E to C....(c; On Tue, 06 Jan 2004 15:30:54 GMT, Larry wrote: On Tue, 06 Jan 2004 06:18:18 GMT, Larry W4CSC wrote: On Sun, 04 Jan 2004 16:10:10 GMT, Larry wrote: On Sun, 04 Jan 2004 03:18:07 GMT, Larry W4CSC wrote: ...snip Junk it. I did mine. If that damned series pass transistor ever shorts, you can kiss all your equipment hooked to it good bye when the 20-some volts hits them. You probably know this, but you can (actually, must) prevent that happening by putting a "crowbar" circuit across the output, after the fuse. This is just a large scr with a resistor from the bus to the gate with a 14 or 15 volt zener to ground. It doesn't conduct until the voltage exceeds the zener limit and then the scr shorts to ground, blowing the fuse and protecting the equipment. -- Larry W1HJF email is rapp at lmr dot com Oh, I know. Does it have an output fuse? Mine didn't, just the AC line. The Astron 40 I just checked didn't. I added one in series and stuck the crowbar after it. It does have foldback current limiting, but that won't necessarily protect equipment connected to it. -- Larry W1HJF email is rapp at lmr dot com |
#20
|
|||
|
|||
Noisy Guest
On Wed, 07 Jan 2004 03:15:02 GMT, Larry W4CSC wrote:
Foldback current limiting assumes the pass transistor doing the folding back is a functional device, not welded from E to C....(c; On Tue, 06 Jan 2004 15:30:54 GMT, Larry wrote: On Tue, 06 Jan 2004 06:18:18 GMT, Larry W4CSC wrote: On Sun, 04 Jan 2004 16:10:10 GMT, Larry wrote: On Sun, 04 Jan 2004 03:18:07 GMT, Larry W4CSC wrote: ...snip Junk it. I did mine. If that damned series pass transistor ever shorts, you can kiss all your equipment hooked to it good bye when the 20-some volts hits them. You probably know this, but you can (actually, must) prevent that happening by putting a "crowbar" circuit across the output, after the fuse. This is just a large scr with a resistor from the bus to the gate with a 14 or 15 volt zener to ground. It doesn't conduct until the voltage exceeds the zener limit and then the scr shorts to ground, blowing the fuse and protecting the equipment. -- Larry W1HJF email is rapp at lmr dot com Oh, I know. Does it have an output fuse? Mine didn't, just the AC line. The Astron 40 I just checked didn't. I added one in series and stuck the crowbar after it. It does have foldback current limiting, but that won't necessarily protect equipment connected to it. -- Larry W1HJF email is rapp at lmr dot com Good point! -- Larry W1HJF email is rapp at lmr dot com |
Reply |
|
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
HELP!! I need help with a noisy and whiny Mercruiser outdrive | General | |||
Question about Mercruiser outdrive that is noisy and whines | General | |||
HELP!! I need help with a noisy Mercruiser outdrive | General | |||
HELP!! I need help with a noisy Mercruiser outdrive | General | |||
Guest Dynaplate bronze ground plate - cheap on EBAY | Cruising |