When it comes to power pollution control and energy conservation, Weifang Zhudu Hui Power Supply Bureau is at the forefront: since the trial operation of Hengdian Electric's HD series power harmonic management equipment in November last year, the energy-saving and consumption reducing effects have been significant, and a lot of investment has been made for enterprises to be thrifty and efficient.
Before stopping harmonic management, the company's power factor was 0.88, and a monthly power rate electricity fee of 5000 yuan was required. After management, if the power factor reached 0.94 or above, the power rate electricity fee could receive an average reward of 20000 yuan per month. As a result, the monthly power rate electricity fee management differed by 25000 yuan, and a benefit of 300000 yuan could be generated in a year! "Wang Jinduo told the author that harmonics also significantly affect the safe operation of equipment and lead to the destruction of transformers. After harmonic management, the equipment operated stably, electricity bills increased, and unit energy consumption decreased. The company can save 1.47 million yuan annually and generate the cost of harmonic management in less than a year.
Filter compensation device for power harmonics refers to the unstable voltage generated by some nonlinear load equipment during power consumption, such as medium frequency furnaces, electric arc furnaces, etc. In recent years, with a large number of enterprises settling in Laishui, the purification of power harmonics has become increasingly important. According to tests on substations of 35 kV and above in the county, at most one harmonic target exceeds the standard for all substations. Harmonics can lead to an increase in energy consumption of enterprise product units and damage to electrical equipment, which has become a major hidden danger affecting the abnormal operation of the power grid.
Since 2013, Zhucheng has been carrying out harmonic management throughout the county. But some business leaders do not attach importance to dealing with harmonics, an invisible and intangible tool. Some people are concerned about investing tens of thousands of yuan, can we issue the capital. Faced with this phenomenon, the authorities in various cities have classified harmonic management as a matter of energy conservation and emission reduction, stopped target audits, and actively launched a hundred day campaign. State Grid Zhudu Power Supply Company advocates the persecution and management benefits of harmonic purification to business owners, and stops providing technical guidance. Introduce policies to provide financial subsidies to enterprises that achieve management tasks within the prescribed time limit. As a result, the mindset of business owners has changed, forming a "3+1" form of harmonic management led by authorities, promoted by electricity, automated by enterprises, and subsidized by funds.
The management work is progressing in an orderly manner this morning. Among the 20 enterprises in the county that need to stop harmonic management, 14 users have stopped management work, and 6 management assemblies are still under construction. It is estimated that the harmonic management in the entire county will be fundamentally implemented by the end of this year.
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