PROJECT CASE
Guangda Electric Is A Professional Organization Dedicated To Solving Power Quality Problems Of Users
How to solve the problems caused by low power factor in automobile manufacturing plants?
1. The power factor of automotive parts processing has been improved from 0.84 to around 0.92, saving about 4.5% on electricity costs; 2. Damping effect: operates smoothly without the risk of resonance; 3. Applicable occasions: maintenance-free outdoor compensation, saving on infrastructure investment; 4. Device characteristics: suitable for relatively stable loads; compact structure with a small footprint; can achieve unattended operation. 5. Supporting components: uses an LCD screen for status display and human-machine interaction, displaying.
2025-02-13
LED energy-saving lamps, billboards, and large-sized LED screens cause transformer noise to reach up to 65dB, cable temperature to reach 83°C, and neutral line current to be 368.
2025-02-13
How to deal with the issue of excessive neutral current in LED and advertising display screens?
User: Shenzhen Guangshuo Environmental Protection and Energy Saving Co., Ltd. Name: Zero Sequence Filter Model: ZSFGD-150/0.4 Load: Fluorescent lamps and energy-saving lamps, UPS power supply, as well as office equipment such as computers, printers, and copiers. Before filtering: 1. High cable temperature, fire hazard: 75℃ 2. Large neutral line current: 73A 3. Neutral line current: over 90% is 3rd harmonic. After filtering: 1. Neutral line cable temperature reduced: from 75℃ to 42℃; 2. Neutral line current reduced: from 73A to 12A; 3. Significant energy-saving effect: reduced loss by 6kW.
2025-02-13
The generator and municipal power dual supply medium frequency furnace from Guangzhou Diesel Engine Factory: 1. Power Factor: The control device can automatically switch between the generator and municipal power, ensuring that the overall power factor at the assessment point is not less than 0.96; 2. Harmonic Suppression Effect: The 5th harmonic current is reduced to 14%, and the 7th harmonic current is reduced to 8.7%; 3. Temperature and Noise: The user's generator temperature is significantly reduced, abnormal noise disappears, and the smelting cycle is noticeably shortened. 4. Supporting Components: A touch screen is used for status display and human-machine interaction, providing an intuitive display.
2025-02-13
Load of the hardware foundry: 3 units of 1.5-ton medium frequency furnaces, 2 in use and 1 as backup. 1. Power factor: The power factor has been improved from 0.88 to over 0.95, saving about 2% on electricity costs, and significantly shortening the smelting cycle; 2. Filtering effect: The harmonic currents of the 5th, 7th, and 11th orders have been reduced to 1.7%, 1.5%, and 1.2%, respectively; 3. Temperature noise: The operating temperature and noise of the transformer have been significantly reduced, enhancing the transformer's load-bearing capacity and extending its service life.
2025-02-13
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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