CTP-500W Hybrid Wind/Solar Grid Tie Info

I clamped mine to 24v battery and it still went over volt. Not often but it did.
I have a second inverter coming to try without the disconnect. I will use which ever works better.

 

Thought I would also add. I only used 18ga for the clamping wire. Probable should have been bigger. But you do not live here with this in your bedroom. I have had gusts on many occasions where it will go from 5 mph to 25-30 as fast as you can snap your fingers. :shock: The Grid Tie goes from solid red standby to blinking red over voltage with no in between green light. Even tied to the solar panels which seemed to be working the rest of the time. So as soon as I get the parts to fix the fried grid tie I will tie the 2 together with the over voltage protection and the 22-60 volt grid tie in parallel. Since it seems to handle the gusts so far.

 

Got the 2 GTIs hooked up with the disconnect. Still waiting for the replacement FETs for the broken one.
Just as always no wind...... :cry:
That VCS-1AH that I got is close to the Ghurd controller. Thing can be used as a charge controller. Real easy to set the the high and low settings. Test points provided. Has a normally closed and normally open connection and toggles between the 2 connections.
I set it to 25v high and 20v low. I will adjust if need be and let you know. The GTI tends to hang around 25v before going over voltage. That is why I set that point. Also there is 3 seconds delay before it switches . For the 20v low I set it because the other GTI cuts out around that voltage.

 

OK we are supposed to be getting big winds this Monday in the eastern US.
About time after 2 weeks of nothing.
Blue Jay time for testing and reporting.......Hope all goes well for our new setups.
I will let everyone know what goes on from here as soon as I can. I changed settings to 26v and 22v and it has been working well when I got hit by a few gusts today.
By the way they lost my shipment of FETs and will have to send again when they get them.

 

sucks they got lost :cry:

I really appreciate the work you are doing.

 

-Been playing with the settings and now have them set at 26 volts high and 20 volts low. It was cycling on and off 4 - 5 times a minute with the gusts. Now the 22v -60v stays on more and longer before it goes back to the lower voltage one.
-Have seen a high of 270w with the lower voltage one and 200w alot with a peak for a little while of 480w at 35 mph. :shock:
-Best guess since the weather setup averages gusts over 3-5 secs. Hope to see alot more tomorrow.
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-Also found a Mosfet substitute. A least from what I could get off the internet. These are special high power FETs. 60v max 10v trigger 90amp max. I will be using AOT 460 or Digikey # 785-1146-5-ND - N channel Power Mosfets.

 

-Forgot this info.
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-With it set at 26volts for the high it kicks out at 27 - 28 volts during the gusts. The unit max voltage is 30 volts.
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-Also the max voltage so far is 55 volts on the higher voltage GTI during fast and hard gusts before it kicks in real aggressive and brings it down to 25 - 30 volts. :geek:

 

:shock: Well at 2:30 AM the switch kicked out at 28 volts and when it reconnected the CTP-1000w the voltage went to 0 volts and braked the turbine . :twisted: You guys are right even being a new design they are evidently only good for turbines with a built in voltage controller or Solar. End of this one. :roll: I will fix both and only be using them for Solar.
I know you told me so.

 

man this is like grounhog day over and over and........

Use wind inverters for wind and solar inverters for solar.... duuuuh !

 

I use sung- 600's(2) and dont have problem with over volting with rather large blades...I dont find that true mur

 

Well this is what they told me. Using 2 you will not have over volt problems. And Some of them tie them to 24v batteries. The manufacturer told me they will work with wind. DUH...... They are replacing the 1000w unit. I was going to use it for Solar to start with. It worked fine for 12 hrs with gusts to 40+ mph with the switch. No over voltage problem. Then it switched to the 22-60v and when it got back down to 20v and reconnected it was a dead short. I happened to be checking it when it took a dump. Red light never came on. Power off power on. It has a Max of 30v and was never over 27v. I will change over to 24v tied system when I can. Right now the 22-60v is taking up the slack real well.

 

I have found all of the different manufactures grid ties seem to handle more amps at there start up voltage as compared to the top out voltage. They run real hot around there max voltages

 

They just sent me a replacement. Hooked it to solar only and it has no output. :cry: Sent an e-mail and has been over a week and no answer yet. One more week and I will report them to ebay and paypal.

 

New update she just got back from long vacation and parts were shipped back. We are working out the details on they and the Grid Tie.

 

Last update. I am done with these units. Just found out the hard way that the switch MUST be in the OFF position. BEFORE you plug it in. Or POP and all the SMOKE comes out.

 

I post this just so you know. The big brother to this unit the 1000 watt unit is running about 500 watts or 50% rated power and it is starting to smell like the smoke is going to be let out at any time. So to keep this from happening for now since there is no wind and I will have to order another SunG solar unit to help out. I am hooking it up in parallel with the wind unit.

 

Yeah, the CPT units .. I tried to fix 2 of these GTIs and had no luck! One guy recently showed a SunG 1000w wind unit actually putting over 1000w into the grid as read on his KAW meter using a HY1000 turbine. That's pushing these things pretty hard.

 

Can pretty much call this thread done. DO NOT BUY CPT-500w or CPT-1000w Hybrid units.
WHY you ask??????
1. Terminals only have 3 threads and have almost no contact area.
2. If they are on and you plug them in POOF goes the unit. Have to buy a new one.
3. Can not hold a turbine from going over volt and burning up the unit. Has no built in dump load or dump load terminals.
4. Has two fans that run a lot and have a very high noise level.
5. Running on solar panels if you do not have proper wire size. Output will suffer more than with a SunG unit.
6. Says it will lock on at 40 watts when actually it is 70 watts. Till then it goes on and off. The SunG is steady right down to a few watts.

This will hold true till they make alot of changes to their units.

 

That's good to know. I just fixed another GTI for a guy tonight, a 350w "off brand." Inside it is just an upgraded Powerjack 250, 98% the same as the original. 1 AC mosfet and 1 AC fuse replaced.
http://www.ebay.com/itm/350w-grid-t...erfect-for-24v-solar-panel-110V-/251019820484