Multi-channel active noise control system for power transformer
A control system and multi-channel technology, applied in the field of multi-channel active control systems, can solve the problems of large amount of calculation, limited installation space, and inability to increase the volume of equipment, etc., to achieve good channel expansion, good control effect, and favorable The effect of ventilation and heat dissipation
Inactive Publication Date: 2011-10-05
NANJING UNIV
1 Cites 23 Cited by
AI-Extracted Technical Summary
Problems solved by technology
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreAbstract
The invention discloses a multi-channel active noise control system for a power transformer which can separately or simultaneously reduce the components approximate to 100Hz, 200Hz and 300Hz in noises of the power transformer and has high degree of automation and a good noise reduction effect. Compared with the noise reduction method of the traditional transformer, the system has a good noise reduction effect on the noise peak approximate to 100Hz, 200Hz and 300Hz; under an ideal condition, the magnitude order of the environmental noise can be reduced to at the microphone; the system manages the input and output of signals in a distributed manner by using a quad-channel signal condition/driving module, has good passageway expansibility and is convenient to realize and maintain; a man-machine interactive module facilitates to manage operation and exchange data; and in addition, the multi-channel active noise control system is less affected by the installation space of the field and is beneficial to the ventilation and heat dispersion of the power transformer.
Application Domain
Transformers/inductances noise damping
Technology Topic
Image
Examples
- Experimental program(1)
Example Embodiment
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more PUM


Description & Claims & Application Information
We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more Similar technology patents
Bacillus pumilus as well as culture method and application thereof
InactiveCN101942403AGrowth inhibitionGood control effectBiocideBacteriaPotato dextrose agarCulture mediums
Owner:ZHEJIANG UNIV
Paecilomyces javanicus and neem compounded pesticides
InactiveCN101331880AGood control effectNo pollution in the processBiocideArthropodicidesAdjuvantAzadirachtin
Owner:GUANGDONG XINJINGXIANG BIOLOGICAL ENG CO LTD
Method for culturing Schizophyllum commune
Owner:BEIJING ACADEMY OF AGRICULTURE & FORESTRY SCIENCES
Agricultural antiseptic
Owner:PESTICIDE INST XIBEI AGRI & FORESTRY TECHUNIV
Vehicle deceleration and vehicle spacing increase system
InactiveCN105679094AGood control effectReduce speedAnti-collision systemsParameter controlEngineering
Owner:WUHAN UNIV OF TECH
Classification and recommendation of technical efficacy words
- Good control effect
Rolling stock rail vibration energy piezoelectric power generating method and system thereof
InactiveCN1610210AGood control effectHarnessing Vibration EnergyBatteries circuit arrangementsPiezoelectric/electrostriction/magnetostriction machinesAutomotive engineeringElectric energy
Owner:XI AN JIAOTONG UNIV
Macrophomina beauveria bassiana HFW-05 bacterial strain and uses thereof
InactiveCN101245319AImprove the effect of prevention and controlGood control effectBiocideFungiMacrophominaTreatment effect
Owner:INST OF PLANT PROTECTION HEBEI ACAD OF AGRI & FORESTRY SCI
Bacillus velezensis and its broad spectrum bacteriostasis and use in prevention and treatment on banana diseases
ActiveCN109022304AReduce the incidence of banana diseasesGood control effectBiocideBacteriaBroad spectrumOryza sativa
Owner:SOUTH CHINA AGRI UNIV
Fungicide containing nutgall extractive and composition thereof
Owner:HEBEI AGRICULTURAL UNIV.