Can a split in the cable of a MagSafe fry my MacBook Air?

I first noticed that my 2011 MacBook Air's battery power was still low after a charge period that should have brought it to 100%. This is when I found that the cord had split.
I purchased a new cord that is exactly the same 45W model as my old cord. I did not know anything about Apple replacing power cords.
By this time my MBA appeared to be totally out of power.
When I tried to use the new cord, the expected LED light did not light up and the MBA did not charge after being left on the new charger overnight. I cleaned the contact on the MBA but this made no difference.
I tried warming up the transformer part of the MagSafe with a hair dryer as some sights suggested when LED light does not light up. No go.
I tried resetting my MBA's SMC by simultaneously pushing the (left side) Shift/Control/Option and Power buttons. Still no result to Power up the MBA.
My call to Apple support was turned away as I did not have Apple Care. According to them, service from an Apple store is 2 or 3 days away from me in Mexico City.
Buying a new laptop is equally complicated as my home base Apple.ca won't ship out of country.
Anything else I can try to wake up my dead MBA?

As PlotinusVeritas, I also thought that the frayed cable had fried the charging block but NO!
I returned home from Mexico and brought the MacBook Air to a Canadian Apple Store for repair.
They started by changing the port where you plug in the MagSafe Power cord: No Difference.
They changed the Charging block/card: No Difference, laptop remained dead refusing to charge.
They quoted me $800. to change the motherboard and at that point as the laptop was not worth that much, I decided to let it R.I.P. (Rest In Peace). The Motherboard was the ONLY thing left that would be the reason why the laptop was no longer charging.
Apple took no responsability for a frayed power cord frying a MotherBoard.
Fellow Apple Owners take note! If your power cord starts splitting/fraying DO NOT CONTINUE USING IT! ! !
A power cord issue can destroy your Motherboard as a worst case scenario. I paid the price as I had to purchase a new laptop.
My other issue is data. The Solid State drive on the laptop is unreachable without a lot of effort. Taking a hammer to it is my cheapest option.

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