| Majorpower Inverters Deployed in Telecom Build
Out. The project was configured with embedded DC power plants
and battery banks
linking a private network of remote node sites. The new
network overlay equipment, including routers and multiplexers, is
only available in a standard 120 VAC power input. Network
engineering evaluated the options to power the equipment giving
primary consideration to quality of service and network reliability.
The three primary options under consideration:
Option A: Small UPS
Advantages – Small footprint, inexpensive initial outlay
Disadvantages – Only minutes of back-up time and short lifespan Option B: Large UPS
Advantages – Several hours of back-up time
Disadvantages – Large space requirement, expensive installation, extensive service contractOption C: Inverter
Advantages – Hours of back-up time, small
footprint, increased reliability because of the
integrated redundancy
Disadvantages – load planning considerations of existing DC Plant
Option C was Selected because using a Majorsine Inverter
utilizes the DC power system to originate pure sine wave AC power
for the new equipment. The hours of back-up is only limited by
the size of the DC system. Reliability is enhanced because all
the equipment in the building is on the same support system.
Redundancy maintains the network overlay equipment by utilizing the
Majorsine Inverter’s integrated AC bypass as an alternate power
source in the event of a catastrophic DC failure. The
Majorsine switches back to the client preferred state once the
primary DC is restored.
Utilizing the existing DC plant to power the AC equipment gave
the telecom company dramatically better reliability than using
either UPS option and will prove to be a more cost efficient
solution in the long term. The Majorsine has been specified in
to the design of all future sites and network overlay build
programs, due to the success on this project.
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