Communication equipment

Characteristics: Large-scale data centers in the communications industry demand high power reliability. Communication equipment, data center equipment, and dedicated computer room air conditioning systems all require guaranteed power supply continuity. These equipment is highly sensitive to voltage fluctuations, and various electromagnetic interference can impact data exchange equipment. Telecom buildings contain large-capacity harmonic source loads, most of which are single-phase, non-linear loads. These loads include:

●UPS power supplies, which have large single-unit capacity

●Switching power supplies, primarily used to power computers and other office equipment, are numerous (3rd, 5th, 7th harmonics, etc.)

●Variable-frequency air conditioners, elevators, water pumps, etc., are widely used, and variable-frequency drive equipment is a major source of harmonics (5th, 7th harmonics, etc.)

If necessary mitigation measures are not taken, serious harmonic pollution will be introduced into the input grid. Coupled with flashovers (power fluctuations) caused by external network fluctuations, the mutual influence of power quality between the internal and external networks will be exacerbated, seriously affecting the stable operation of communications equipment.

Project Background:

The power distribution system of a data center computer room contains numerous harmonic-generating devices, such as UPSs and switching power supplies. Furthermore, power outages (or power fluctuations) caused by external network fluctuations, and the mutual influence of power quality between the internal and external networks, severely impact the stable operation of communication equipment. Similar to general radio interference, the harmonics generated by UPSs can interfere with communication signals through conduction, electromagnetic radiation, and inductive coupling. Signals are prone to delays, distortion, and disturbances during transmission, affecting communication quality. Frequent power outages (or power fluctuations) caused by external network conditions such as thunderstorms, and severe voltage sags can also cause brief signal interruptions. Harmonic mitigation with Kedelibang's specialized power equipment provides reliable power quality for data exchange and transmission equipment, blocks interference channels, and improves power stability in the computer room.

Customer Focus:

●Safely improve power factor

●Prevent harmonic interference with communication signals

●Ensure data security in the data center computer room

●Ensure the safety, stability, and reliability of critical power supply, and high power quality. Ensure the stable operation of communication equipment.

Solution:

One unit of Kedelibang's new power supply equipment was installed at each input terminal of the low-voltage distribution room. This equipment provides synchronous harmonic control, reactive power compensation, voltage and current stabilization, three-phase balancing, and complete elimination of flashovers (swings). This truly achieves the dual goals of optimizing power quality and saving energy.

Conclusion:

The data center's power distribution system utilizes two input power sources. With the Kedelibang new power supply equipment, only one input power source is needed, completely resolving grid fluctuations and other issues. Voltage and current distortion are significantly reduced, keeping THDi below 5%. Furthermore, testing has shown an overall energy saving rate of 10%. This truly achieves the dual goals of optimizing power quality and saving energy, creating a stable power environment for the data center and generating approximately 900,000 yuan in annual energy savings.