PROJECT CASE

Guangda Electric Is A Professional Organization Dedicated To Solving Power Quality Problems Of Users

The overall power factor meets the standards under dual power supply, and the diesel engine factory has successfully demonstrated this.


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

How to improve the power factor of the medium frequency furnace in a hardware foundry, save on electricity costs, and shorten the smelting cycle?


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

The power factor of the medium frequency furnace has been improved to 0.92, allowing the foundry company to save 100,000 yuan in electricity costs per month.


User: Zhongtian Chuangzhan Ball Iron Co., Ltd. Name: Low Voltage Automatic Reactive Power Compensation and Harmonic Suppression Device Model: MSCGD-2920/0.75 Load: 1 unit of 5000kW medium frequency furnace 1. Power Factor: The power factor is improved from 0.77 to above 0.92, saving about 100,000 yuan in electricity costs per month, and reducing energy consumption per ton by 8.4%; 2. Filtering Effect: The 5th harmonic current is reduced to 13% of the fundamental current, and the 7th harmonic current is reduced to 7.6% of the fundamental current; 3. Temperature and Noise: The operating temperature and noise of the transformer are significantly reduced, allowing for full utilization of the transformer's capacity; 4. Supporting Components: Equipped with a liquid crystal display.


2025-02-13

How to use filters to improve harmonic issues during the operation of water pumps?


In the Shenzhen water plant, several variable frequency energy-saving pumps have been installed. 1. Power Factor: The power factor has improved from 0.86 to around 0.93, saving about 2% on electricity costs; 2. Filtering Effect: No faults have occurred since installation, and harmonic currents have significantly decreased, with the 5th harmonic reduced to 2.5% of the fundamental current; 3. Temperature and Noise: The pumps operate smoothly with no abnormal noise; the temperature and noise of the treatment devices are stable; 4. Supporting Components: An LCD screen is used for status display and human-machine interaction, providing an intuitive display.


2025-02-05

Solutions for Low Power Factor in Medium Frequency Furnaces/Industrial Furnaces


Industrial Furnace Load: 1 unit of 75kW industrial furnace 1. Power Factor: The power factor is improved from around 0.58 to about 0.90, saving approximately 29% on electricity costs; 2. Filtering Effect: The 5th, 7th, and 11th harmonic currents are reduced from 29.7%, 6.5%, and 8.0% of the fundamental current to 4.1%, 4.2%, and 5.6%; 3. Device Features: The filtering effect is not affected by system parameters; compact structure, small size, suitable for on-site installation; 4. Supporting Components: LCD screen status.


2025-02-13