Why aren't Air Blast Circuit Breaker used Nowadays?

[@mahindersingh3995]

Sir could you please post 10 to 20 question(MCQ) per day from any Govt exam belong to electrical this action to help us a lot .Great video sir I am watch your video to learn
thxx sir

[@manoranjanmajhi4278]

Sir mein odisha se hnu aur btech electrical engineering ka student hnu ,sir apki samjhaneka tarika excellent hai, sir contro system ki ek series lye sir

[@vijaykumarofficials941]

thank you 🌹🌹🙏sir
sir relay me overload aur short circuit fault ko kaise pahachanenge.????????