Benefits of Three Phase Power

Benefits of Three Phase  Power

Most of the electric power in the world is three phase. The concept was conceived by Nikola Tesla and the benefit of three phase power it is far superior to single phase power.  The main benefit of three phase power it is typically 150% more efficient than singe phase in the same power range.  In single phase the power falls to zero three time during the cycle. In three phase it never drops to zero and the power delivered to the load is the same at all time. Most motors and equipment need this balance load to run properly.

Another benefit of thee phase power is the conductors are 75% the size of a singe phase for same power output. Also by using three conductors rather then two, as used in single phase allows for lower current levels in each conductor. Three phase power is a more efficient means of supply power to large electrical loads. 

Economic also plays in the benefits of three phase power. If you are running a 5-10 kVA, it's a lot easier to find components to handle the 15-20 amps per phase rather than handling the 50 amps you need for single phase. When handling currents over 20-25 amps everything gets more expensive, switches, fuses, fuse holders, plugs and sockets.    For this reason , a three phase power motor is less expensive and smaller than a single phase motor of the same voltage and rating.

Three phase power is used in our electrical power distribution system and is a extremely  efficient. All three wires bear the same current value and have a continually balanced power load. To get a better understanding read our article on how does three phase power work?

Electric motors are the most common use of three phase power. The benefits of three phase power in a induction motor it is highly efficient, has a trouble-free design and a high beginning torque.  These motors are used in fans, blowers, pumps, compressors as well as motor driven equipment. While most three phase motors are pretty large, there are examples of very tiny motors, such as what is used in computer fans. A three phase motor is less expensive than a single phase motor of the same voltage and rating. A three phase motor torque is extremely smooth, and it also very reliability.

Most homes and businesses are supply with single phase power, so how do you run your three phase equipment?  A economical solution is to install a  phase converter to convert that single phase power into three phase power. For more information on phase converters and how they work contract ACE Phase Converter, a reliably manufacturer of phase converter for over 25 years.