It's kind of difficult to explain the Brazilian outlets because the standards changed a lot. first original Brazilian outlet was the two round prong for small appliances and the reverse Y for heavy duty appliances like dryers, air conditioners or diahwashers but as many people used to to buy American small appliances like blenders and stand mixers, several manufacturers decided to include the two flat prong standard on outlets so our outlets had a mix of both flat prong and round prong then Brazilian government decided to change the standard here in Brazil the standard since 5 years ago is exclusive it can't be seen anywhere in the world. Only Brazil has this kind of of outlets and plugs. there are two different kinds of outlets and plugs 10a and 20aa, with three round prongs.
The 10a plug has thinner prongs and it will fit both 10 and 20a outlets, but a 20a plug won't fit a 10a outlet because the prongs are milimetrically thicker.
About the outlet behind the tap, its very common here because of the electric faucets. 95% of homes in Brazil don't have a water heater and a hot water pipe. Most people use electric showerheads and electric kitchen faucets that heat the water 1 second before its used. They are very safe, even mixing water and electricity and you can adjust the temperature by either opening the tap more or less or by adjusting the electronic selector these electrical showers and faucets have.
As I installed a tankless water heater in my laundry room, I just ran a pipe under the counter for hot water and I put a T connector on the lower dishwasher hookups for cold water.
The Y outlet you see is because I had some 220v argentinian small appliances (a hand blender and a waffle maker) and they come with the Y plug. To prevent damages, I put that outlet for the 220, so the other 127v appliances would never be plugged in the wrong outlet to be fried.
The two prong outlet on the right is 127v and its the only "old style" outlet I kept in the kitchen, because of my Ka stand mixer (I broke the ground prong)
All the other cupboard outlets are the new standard.
And the small tap where the dishwasher is connected is the original pipe for the faucet. I simply didn't want to have an ugly cap closing that pipe on the wall, so I put that small tap. It saved me from drilling a hole on the granite cupboard for the upper dishwasher inlet hose.
And the upper dishwasher drains in the right sink.
