Method for monitoring lighting lamp power factor compensation capacitance fault
A technology for power factor compensation and lighting fixtures, applied in lighting devices, electric light sources, electrical components, etc., can solve problems such as waste of electric energy, lack of monitoring methods, failure to find and replace faulty capacitors of lighting fixtures in time, and reduce production costs , The effect of reducing power loss
Inactive Publication Date: 2012-11-21
江苏联宏智慧能源股份有限公司
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Problems solved by technology
[0003] The purpose of the present invention is to solve the problem that the lack of monitoring method for the compensation capacitor failure of lighting lamps leads to the failure to find and replace the faulty capacitors of lighting lamps in time, resulting in a large waste of electric energy. Cost Monitoring and Fault Alarming Lighting Lamp Power Factor Compensation Capacitor Fault Monitoring Method
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[0018] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0019] A power factor compensation capacitor fault monitoring method for lighting fixtures, comprising the following steps:
[0020] (a). First, set the upper and lower thresholds of reactive power and the lower threshold of active power of lighting fixtures according to different lighting fixtures to be tested, and store them in the EEPROM of the CPU;
[0021] (b). Measure the active power and reactive power of the lighting fixture after the lighting fixture is powered on;
[0022] (c). Compare the measured reactive power of lighting fixtures with the set upper and lower limit thresholds of reactive power of lighting fixtures. If the measured reactive power of lighting fixtures is greater than the set upper threshold of reactive power of lighting fixtures or If the active power of the output lighting lamp is less than the set lower threshold value of ...
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The invention provides a lightening lamp power factor compensation capacitor fault-detecting method, which can detect the active power and the reactive power of the lightening lamps in real time; when the detected reactive power is higher than the upper limit threshold value of the preset active power, or the detected active power is lower than the preset lower limit threshold value of the activepower and the reactive power is lower than the lower limit threshold value of the preset reactive power, the compensation capacitor fault is determined, so as to send out the signals to alarm; the detecting method has the advantages that the capacitor fault can be found out in time, the power factor can be improved, the wire loss can be reduced, and the electricity energy can be saved.
Description
technical field [0001] The invention relates to a method for monitoring compensation capacitor faults of lighting lamps, in particular to an automatic detection method for power factor compensation capacitor faults of lighting lamps in public lighting systems, specifically a method for monitoring faults in power factor compensation capacitors of lighting lamps. Background technique [0002] With the reduction of non-renewable resources in the world, saving resources and saving energy has attracted the attention of the whole society, and energy saving and emission reduction are becoming more and more important. In particular, public lighting fixtures usually use inductive ballast-type high-pressure sodium lamps. Due to the reactive power generated by their inductive loads, no reactive power compensation measures are taken, which reduces the power factor and causes the public lighting transmission cable load Aggravation and increased voltage drop cause unnecessary loss of powe...
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IPC IPC(8): H05B41/36
Inventor 吴宝财吴晓龙顾德林
Owner 江苏联宏智慧能源股份有限公司