PROJECT CASE
Guangda Electric Is A Professional Organization Dedicated To Solving Power Quality Problems Of Users
Case Study | [Broadcast Media] Example Demonstrating How Active Filter Devices Helped Users Solve Severe Harmonic Issues
Time：
2019-09-28
Client Name: Guangzhou Broadcasting and Television Station Harmonic Load: UPS Power Supply Cabinet Procured Equipment: Active Filter Device APFGD A set of low-voltage active filter device APFGD is designed for this transformer to improve the power factor, filter out characteristic sub-harmonics, stabilize system voltage, enhance power quality, and ensure electrical safety.
Customer name:Guangzhou Broadcasting Station
Harmonic load:UPS power cabinet supply
Purchased equipment:Active filter deviceAPFGD
Project background
Guangzhou Broadcasting Station(Guangzhou Broadcasting Network),(also known as: Guangzhou Station, GZBN), was established by the Guangzhou Municipal Party Committee and Municipal Government to cooperate with the reform of cultural institutions and the requirements of the State Administration of Radio, Film and Television for the merger of radio and television stations.Television stationmerged..
Electricity overview (UPS power cabinet supply)
Guangzhou Broadcasting StationIn the distribution room, there is currently1a transformer,with a rated capacity of630kVA, voltage level of10kV/0.4kV.The main load isthe UPS power cabinet supply, which is a typical nonlinear load that generates a large amount of 5th and 7th harmonics during operation, affecting the stable operation of other equipment, urgently needing to solve the harmonic problem to ensure electricity safety.
Design plan
For thistransformer design1 setlow voltageActive filter deviceAPFGD, improve power factor, filter characteristic sub-harmonics, stabilize system voltage, improve power quality, and ensure electricity safety.
Active filter deviceEffectanalysis
After the operation of the low-voltage active filter deviceAPFGD, the total harmonic distortion of the current decreased from 21.2% to 4.4%, and the 5th current harmonic distortion decreased from 52A to 3.6A, solving the user's power quality problem.
Operating data
|
|
Before installation,the total harmonic distortion of the current is 21.2%.About | After installation,the total harmonic distortion of the current is 4.4%.About |
|
|
Before installation,The absolute value of the 5th current harmonic distortion is 52A. | After installation,The absolute value of the 5th current harmonic distortion is 3.6A. |
Guangda ElectricThoughtful suggestion:
InGuangda Electricgoodpowerbrand building, we insist on providing sufficient value return and feedback to every user who believes in us. To achieve stable product quality, werequireGuangdapeople to reach200% ofcraftsmanshipinjection. In terms of material selection, we cannot afford mistakes, and in terms of craftsmanship, we do not allow laziness.
Dear customer, please rest assured of our craftsmanship, products, and services. We are committed to becoming a valuableActive filter devicemanufacturerand harmonic treatment manufacturer.
Official hotline:18028173863
Guangda ElectricDesignated official website:http://www.gd96.com/
Related Cases
Follow Us
Guangdong Guangda Electric Co. Ltd.
Tel：18028173868
E-mail：gdgddq@126.com
Web：www.gd96.com
Add ：Building 3, No. 613, Xingtan Shuixiang Avenue, Gaozan Village, Xingtan Town, Shunde District, Foshan City, Guangdong Province