100 amp shore power

[Carlos Pelaez]

are you looking for 1, 2 or 3 pole feed? does the load REQUIRE 100 amps? at least one manufacturer (and I imagine many others) make a GFCI breaker up to 60 amps (https://www.platt.com/platt-electri...kers/Eaton/CH260GFT/product.aspx?zpid=0180547) while I realize this will not provide a 100 amp service, is it possible that 60 amps might be enough for the loads involved?

I asked the customer. He says that it has a demand close to 100a. Maybe 90? He was not sure. And this is a 120/240v single phase.

 

[rippledipple]

maybe the boat needs to be looked at. the load could be too unbalanced.I'm sure it was designed for 2- 2 pole 50's

 

[oldsparky52]

If you contact the manufacturer of the power pedestals that are on the dock, they may have a solution for you. How is this marina dealing with the GFP now?

 

[oldsparky52]

If you have a pedestal out there now that has 2 50-amp receptacles on it and is fed with one 100-amp feeder, then I would suggest replacing that pedestal with one that has the existing receptacles and a 100-amp receptacle also. You either use the 100-amp or the 2 50-amp so the load calculations should remain the same. Just swap out the pedestal.

 

[Carlos Pelaez]

If you contact the manufacturer of the power pedestals that are on the dock, they may have a solution for you. How is this marina dealing with the GFP now?

This is a new Pedestal to be installed. And I contacted a sales guy for the pedestal, and he said that electrical suppliers do sell 100amp GFCI breakers. I had to hang up. LOL

 

[Carlos Pelaez]

Just poking around, you may need to use a 100a shunt-trip breaker and a GFP module, Schneider makes something like that but I didn't look too closely at the data sheet. Might have to use a 3-pole breaker for this to match the module.

I found this one. It is rated for a continuos 100amp load through the sensor. It has a minimum trip sensitivity of 30mA. It will be it with a Trip shunt breaker. This is perfect.
Eaton - Cutler Hammer D64RP18

 

[Carlos Pelaez]

Now, from the subpanel to the new pedestal, the raceway will be 130' aprox. I guess I am going to have to install the sensor closer to the pedestal. If I install it that far, it could have some capacitance leakage and make it fail. I should install a 4x panel right by the seawall with the shunt trip breaker and the sensor there.

 

[zbang]

Eaton should be able to give some guidance on that.

 

[ptonsparky]

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