What's the difference between economic protectionism and economic interventionism?

Protectionism is the economic policy of restricting imports from other countries through methods such as tariffs on imported goods, import quotas, and a variety of other government regulations. Proponents argue that protectionist policies shield the producers, businesses, and workers of the import-competing sector in the country from foreign competitors. However, they also reduce trade and adversely affect consumers in general (by raising the cost of imported goods), and harm the producers and workers in export sectors, both in the country implementing protectionist policies and in the countries protected against.

all in the explanation

Explanation:

An economic intervention is an action taken by a government or international institution in a market economy in an effort to impact the economy beyond the basic regulation of fraud, enforcement of contracts, and provision of public goods and services.

and

Protectionism, policy of protecting domestic industries against foreign competition by means of tariffs, subsidies, import quotas, or other restrictions or handicaps placed on the imports of foreign competitors.