Generator 30 amp receptacle configuration

[Conquest2011]

I need to know what is the standard position of the blades on a 30 amp generator receptacle.

I have a Yamaha 2-2200IS generators and tested them yesterday on the RV and discovered a reverse polarity on the EMS.

The 5er is 50 amp service, so I used a 30 amp to 50 amp pigtail on the genny.

The 30 amp receptacle blade positions are as follows: Ground position is 12 o'clock, neutral blade slot on the left and positive blade on the right this is as your looking at the genny.

The pigtail blades positions when they are facing the genny. The ground is at the 12 o'clock, the neutral blade on the right side and positive on the left side.

This where I believe the reverse polarity is occurring, just don't if the pigtail is wrong or the genny is wrong.

During test both generators were connected together according to instructions and both generators has the same 30 amp receptacle blade position and receptacle slots were verified with a multi-meter.

 

[Henry J Fate]

See attached

 

[Henry J Fate]

It seems that the yamaha adapter corrects the polarity difference.

 

[Conquest2011]

Sent an email to the dealer I ordered the generators from and he sent me a diagram of what the receptacle should look like and yep my genny's are wired up wrong.

Get this after spending 2K on these genny's he gave me the okay to go in and rewire the receptacles, imagine that.

I did ask for Generator covers for my troubles. LOL. We see.

 

[Henry J Fate]

That's messed up. Were the parallel running terminals backwards or the AC receptacles backwards or both?

 

[Arch Hoagland]

Makes you wonder what else the QC department missed.

 

[Conquest2011]

There is connecting cable between the two gennys and you plug in your 30 amp plug and your off to the races.

My EMS says "you are a NO GO at this station, Son and you are not getting any juice, juice at this time". Actually a reverse polarity error message shut me down.

The dealer rep ask me to send him the serial numbers and I did. Looking at the two serial numbers being so far apart, lets me wonder if this is assembly line issue. As opposed being a fluke chance of one error.

Both genny's receptacle were reversed.

Update, I took front panel off and a simple switch aroo on both 30 amp receptacles. Hooked both genny's in parallel fired them up connected to RV, EMS says "attaboy about time you get your head out of your a$$". Actually no error 126 volts on both legs, 60 hertz.

Even fired up the electric fire place, put the genny's at 50%

Other than this issue I am pretty happy with what I have here.

The book says the genny will for 10 hours on a tank of gas at 25% load and it is 1.25 gallon tank.

The only thing I don't care about is hour meter. The meter only reads in hundreds and  thousands and you have to do some finger gymnastics with a reset button and oh yeah you can't be in parallel and/or have load. 

Now off the fix that pesky hydraulic leveler leak, the leak is at the jack hydraulic hose connections. I hope it just needs tightened.

 

[Conquest2011]

There is connecting cable between the two gennys and you plug in your 30 amp plug and your off to the races.

My EMS says "you are a NO GO at this station, Son and you are not getting any juice, juice at this time". Actually a reverse polarity error message shut me down.

The dealer rep ask me to send him the serial numbers and I did. Looking at the two serial numbers being so far apart, lets me wonder if this is assembly line issue. As opposed being a fluke chance of one error.

Both genny's receptacle were reversed.

Update, I took front panel off and a simple switch aroo on both 30 amp receptacles. Hooked both genny's in parallel fired them up connected to RV, EMS says "attaboy about time you get your head out of your a$$". Actually no error 126 volts on both legs, 60 hertz.

Even fired up the electric fire place, put the genny's at 50%

Other than this issue I am pretty happy with what I have here.

The book says the genny will run for 10 hours on a tank of gas at 25% load and it is 1.25 gallon tank.

The only thing I don't care about is hour meter. The meter only reads in hundreds and  thousands and you have to do some finger gymnastics with a reset button and oh yeah you can't be in parallel and/or have load. 

Now off the fix that pesky hydraulic leveler leak, the leak is at the jack hydraulic hose connections. I hope it just needs tightened.

 

[Henry J Fate]

Make sure the parallel terminals are also polarized correctly. The wiring diagram seems to indicate that a polarity change at the receptacles would not correct improper polarity at the parallel terminals and I don't know what your ems would indicate if those are still reversed. It may not matter because the final polarity is correct but it's something to be aware of.

 

[Conquest2011]

Make sure the parallel terminals are also polarized correctly. The wiring diagram seems to indicate that a polarity change at the receptacles would not correct improper polarity at the parallel terminals and I don't know what your ems would indicate if those are still reversed. It may not matter because the final polarity is correct but it's something to be aware of.

It made it passed the EMS and it is wired correctly according to the diagram and the pigtail matches up with receptacle, I am looking good finally.

Thanks for everyone input appreciate it.

 

[viceprice]

We had the same problem with our Briggs and Stratton generator. I had to re-wire the receptical on the generator. I found it interesting as the receptical even had the location of the proper color of the wires stamped on the back side! I also found this problem noted in an online review of this particular model.

 

[Conquest2011]

I think what's going on in the assembly is that when worker is wiring the back of the receptacle they are connecting the hot wire to the their left and not the front's of the receptacle's left, if that makes sense to you.

Simple mistake someone says black wire connects on the left and white wire connects on the right side. More than likely assembly workers are not electricians.  Just my thoughts.

 

[ChasA]

What? Assemblers can read?

 

[viceprice]

The other thing I had to do was use a "bonded" plug in the 120 v receptical on the generator to prevent an "open ground" error on my surge protector. You can buy them-I made my own.

 

[Conquest2011]

The other thing I had to do was use a "bonded" plug in the 120 v receptical on the generator to prevent an "open ground" error on my surge protector. You can buy them-I made my own.

I had to do the same thing. I took a replacement plug that I had laying around and connected a white wire to the ground and neutral blades and plugged that into the generator's receptacle. What you are actually doing is bonding a floating neutral in your generator to the ground of the RV. (Any electrician out there correct me if this not correct.)

 

[Gary RV_Wizard]

Assembly line workers are given rigorous procedures to follow, but they are human: they daydream while doing a repetitious job, they have bad days, and sometimes the regular worker is absent and gets replaced by another with very little training.

 

[Conquest2011]

I agree Gary, but looking at the serial numbers of the two Genny's they're 200 units apart from each other. If the units are numbered coming off the assembly line, this would lead me to believe that the incorrect wiring is not a fluke but a training issue or the China don't know the left from the right.

Just imagine Japanese product made in China. When saw the box they came in I was totally surprised that these generator were made in China.

Other than this little issue, these generators are well build and put together, I am totally thrilled about the quality.

 

[Gizmo100]

I agree Gary, but looking at the serial numbers of the two Genny's they're 200 units apart from each other. If the units are numbered coming off the assembly line, this would lead me to believe that the incorrect wiring is not a fluke but a training issue or the China don't know the left from the right.

Just imagine Japanese product made in China. When saw the box they came in I was totally surprised that these generator were made in China.

Other than this little issue, these generators are well build and put together, I am totally thrilled about the quality.

This is a simple case of NO Quality Control (QC). The operator may not have been trained properly but QC should have been doing random checks. As far as 200 units apart. That's likely less than a shifts production. I wouldn't be surprised to find out that it was going on for a much longer period of time.