Advantages of three phase transformer over single phase transformer

What are the  main key advantages of three-phase transformer over single-phase transformer

• Low cost.
• Light in weight.
• Low size.
• Need less space.
• Easy to install.
• More economical.
• Easy to assembling.
• High efficiency.
• Must be assembled for a short time.
• Easy to modify.
• Easy to transportation and installation.
• Deliver more power.
• Bas bar structure and switchgear installation for a single three-phase unit are simple.
• Only three-terminal are required to be brought out in case of a three-phase transformer compared to six terminals from three single-phase transformer.