Huawei’s modular UPS holds the largest market share in the world, and was awarded “Modular UPS Company of the Year” by Frost & Sullivan.

1. UPS Product Recommendation
UPS5000-E Series (25 kVA to 800 kVA) Uninterruptible Power Supply
The UPS5000-E series is an ultra-high-efficiency modular Uninterruptible Power Supply (UPS)
designed for medium and large-sized data centers. With the highest module efficiency (97.1
percent) in the industry, UPS5000-E is the best TCO power solution for data centers. Its reliable
performance guarantees an enduring and stable power supply.
The system efficiency of the UPS5000-E can reach 96.5 opercent at 20 percent load, and 97
percent at 40 percent load, which is more suitable for the real service scenarios of the data center.
The modular hot-swap design simplifies O&M, shortens maintenance or expansion time to five
minutes, and expands the capacity of a single cabinet to 800 kVA. The system can flexibly expand,
which greatly improves system availability.
Huawei’s modular UPS holds the largest market share in the world, and was awarded “Modular
UPS Company of the Year” by Frost & Sullivan.
UPS Strengthens Airports’ Reliable Wings Provision

2. Introduction
Development of new-generation information technologies such as Big Data, cloud computing, and
the Internet of Things (IoT) are making it possible for airports to fundamentally change into more
intelligent operations. With the prerequisite of guaranteeing information security, air traffic
management, airline operation management, and airport operation management, airports, and
their processes are evolving towards cloud-based services, integrated data, and innovative
applications.
As a hub of modern traffic and transportation, airports undertake the important mission of providing
convenient travel for people and their belongings. If an airport is not efficient, the consequence
would be a large economic loss.
Background
Chongqing Jiangbei International Airport is located in Yubei District of Chongqing City, China, 19
kilometers away from downtown. The Airport is a grade-4E civil international airport making it a
national large-scale airline hub and only eight airline hubs exist in China. In 2013, Chongqing
Jiangbei International Airport became the fifth airport in China.
The airport has two terminals. Terminal 1 is for international flights while terminal 2 is for domestic
airlines, totaling 200 thousand square meters. In 2015, Chongqing Jiangbei International Airport
accommodated 32.4 million passengers.
Airport terminals are the central nervous system of modern airports and have a complex network
system. Ensuring uninterruptible power supply for the data equipment in the airport terminals and
the related key infrastructure is an important factor that airport administrators must consider. The
Uninterruptible Power Supply (UPS) used by an airport is one of the most important security
assurance devices of the whole aeronautical system and is vital to stable, reliable, and efficient
administration of the airport. Selecting a reliable UPS was an important issue for designers and
builders of the terminals of Chongqing Jiangbei International Airport.
Challenges
A primary concern for the constructors of the new terminals was the power supply system for the
devices. Traditional power systems use distributed power supply, with one mini-UPS for each
device. For example, security check passages, boarding gates, and baggage conveyors use 20

3. kVA to 80 kVA UPSs. These UPSs are scattered throughout the terminals making them
inconvenient to repair and maintain.
If one of the smaller UPS systems are down, the airport needs to contact the vendor to repair the
UPS and, if the time frame is uncertain, substantial trouble for the mechanical and power
maintenance department of the airport as well as stranded passengers could result in lost
reputation and lost revenue. Scattered and small-scale UPSs are not efficient and, coupled with
the fact they have an efficiency lower than 90 percent, it becomes obvious that they are unsuitable
for the current requirements for energy savings and carbon emission cuts.
Figure 1. Layout of key devices in the airport requiring power supply assurance
Solution
After examining existing plans and from thorough discussion, the airport decided to use regional
centralized power supplies for the new terminals and to replace the scattered small-capacity UPSs
of the security check passages, boarding gates, and baggage conveyors with large-capacity
centralized UPSs. To avoid the problem of voltage reduction, the distance of power supply to
regional loads cannot exceed a certain value. Centralized UPS capacity is usually higher than 200
kVA. Centralized power supply greatly increases the efficiency and achieves energy savings while
cutting carbon emissions. Centralized power supplies also solve the problem of scattered
maintenance, though they have a high requirement for system reliability. Reliability can be
improved by 2N architecture and a redundant dual-bus system. Single point of failure cannot exist
because it may cause a system-wide outage.
The constructors of Chongqing Jiangbei International Airport carried out stringent bidding and
examination and finally chose the Huawei UPS-5000E modular UPS solution to safeguard the new
terminals.
Benefits
For the sake of reliability, Huawei UPS5000-E uses a state-of-the-art topological structure, fully
modular design, and highly reliable N+X power distribution. The Mean Time To Repair (MTTR) is
the shortest in the industry. Another feature of Huawei UPS5000-E, favored by Chongqing Airport
Group, is the low-load with high-efficiency: 95 percent and 96 percent efficiencies at 20 percent
and 40 percent loads, respectively. Compared with the 90 percent efficiency of a traditional UPS,
Huawei UPS5000-E saves electricity fees.
High-density modular N+X system replaces the existing 1+1 towers, reducing the physical footprint
by at least half. All functional components support hot-swap. An ordinary engineer can replace a
faulty module in less than 5 minutes, quickly resolving failures.
As one of the world’s leading information and communications solution providers, Huawei took only
several years to leap from entering the UPS market to becoming a modular UPS leader. Huawei
UPSs are now in wide commercial use around the world, covering traffic, ISP, finance, government,
and energy, while providing uninterruptible power supplies to key loads in large-scale and medium-
scale data centers, security systems, and automatic production equipment, offering full-
dimensional power assurance for the users.