Is there anything wrong with 3 Text ads for the same campaign?

[brucec]

I just found that we have a 0.0% CTR with one campaign and received hundreds of impressions.

So, I rewrote the ad to attract more attention.

I like 3 different headlines. So, I wrote 3 ads for the same campaign each with a different headline.

Does Google penalize for this? How does Google know which ad to serve when all 3 ads are new and have no CTRs?

[webdiversity]

By default Google automatically optimises your ads, so if you have 3 then over a short space of time it will identify the ad with the best CTR and serve that one up more frequently than others.

Problem with it is that the best CTR might not be the one that converts best, so you may want to try serving them up with the automatic optimisation switched off until you get your own data, linked through to sales.

Hope that helps.