tory burch Harmonic and Its Control _1583 DC elect

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Harmonic and DC electric arc furnace control

Device put into operation, most of the harmonics are effectively absorbed, filter works well. 33KV bus side voltage distortion rate of the total fell to 2.70%, less than GBZI \Filter in operation, sometimes when the filter (continued on page l9) 2000 19 of the first phase of the metallurgical and based on the incoming materials,[link widoczny dla zalogowanych], intermediate products, final product inspection and testing. Products factory are required to complete the standard inspection and test projects, and provide products meet the evidence requirements table. In addition, the 315 inspectors and 202 staff are specially trained pilot certificates. For the inspection and test found unqualified, according to the company, \3.6 The implementation of the corrective and preventive measures. Establishment of mechanisms for self-improvement of the quality system of prevention and implementing modern quality management principles of the nuclear t3. ISO9002-94 standard is a key feature emphasized the role of prevention. Company for process control, product testing, user visits, quality system audit, management review, certification, supervision and audit failure occurred in items taken notice issued to formulate measures to verify the results of other three-step procedure for rectification. From the beginning of the end of 1995 standards implementation to the end of 1998, the company Technology Service, the Quality Department, Sales Department, issued a total measurement of 28 times, \plant had qo5 times issued \4 Standards Implementation Experience and certification of the 41 leaders at all levels of attention and participation. Is to improve the fundamental guarantee for the work of standards implementation since May 1997, the company executive,[link widoczny dla zalogowanych], general manager of top leaders repeatedly stressed that the units work on standards implementation to achieve the \quality manual and program files, personally supervise and inspect the rectification of failed items, thus ensuring the smooth development of standards implementation and implementation work. 4.2 Documentation and standardization of quality system establishment, is the basic requirements of quality management Although we have passed the quality system certification, but there is still much work to be done. Once the file management to achieve all the requirements, the quality of our work will become more clues and well-organized, the quality at all levels of responsibility will become more clear. 4.3 The implementation of corrective and preventive measures. Is an effective means to improve product quality through standards implementation, we will further strengthen the production process, quality control, strict implementation of process rules to strengthen the implementation of corrective and preventive measures to maintain the depth and breadth of 4.4 certification's credibility. Must work with daily quality control standards implementation combined company has released a draft \criteria were satisfied that the normal quality management track. Standards Implementation 4.5 The ultimate aim is to improve the quality and efficiency of enterprises to obtain a quality certification system and is only the first step, companies how to improve products quality and market competitiveness, and create a positive continuous improvement of the quality system to ensure that the quality system on the market behavior continuing suitability and effectiveness, which is our long-term efforts. Received 1999-09-20 (Continued from page 14) crossing the plant put into operation, the system will be an over-voltage phenomenon. At this point,[link widoczny dla zalogowanych], we can successive times higher, respectively, to disconnect the HF low slip, the system voltage is maintained within the allowable range. In particular, note that} branch circuit devices. Should adopt the sulfur hexafluoride circuit breaker to ensure that the case of over-voltage, circuit breaker can be reliably work. 5 Conclusion DC electric arc furnace from 80t effect of filtering devices proved put into operation, the power system harmonic been brought under control, great power too improve the quality of Afghanistan, and the system's power factor is also increased. Filtering device is not put into operation before the power factor EAF is low, usually 0638. Low power factor is required to pay a monthly fine of 30 - 40 million. Filter put into operation, when the power factor EAF increased to 0935. The average monthly power factor power factor measurement basis, hire after twelve months running average filter device power factor can reach 0.951,[link widoczny dla zalogowanych], ~ _k, in line with national standards. Complete filter units for investment, about half of the time ~ can be recovered, obviously profitable. In summary,[link widoczny dla zalogowanych], the DC electric arc furnace steel production, the filter unit into operation is necessary, it not only has a certain economic benefits, but also has social benefits. Received 1999-0920
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