Driver for indicating lamp in substation water immersion monitoring system
A monitoring system and indicator light technology, applied in the use of semiconductor lamps, electric light sources, electrical components, etc., can solve problems such as circuit breakage and failure to work normally, and achieve the effect of avoiding circuit breakage, facilitating implementation, and facilitating application.
Inactive Publication Date: 2018-03-09
黄生林
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Problems solved by technology
When the series drive method is adopted, the brightness of each LED lamp bead is the same, but when one or several LED lamp beads fail and break the circuit, the circuit will be disconnected and cannot work normally.
Method used
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[0013] like figure 1 as shown in figure 1 As shown, the driver of the indicator light in the water immersion monitoring system of the substation includes a casing and an internal circuit arranged in the casing, wherein the internal circuit includes a rectification module and an LED lamp bead group connected to the rectification module, wherein the rectification module includes a bridge The rectifier circuit 1, the first capacitor C1 and the first diode D1, the bridge rectifier circuit 1 is provided with two input terminals and two output terminals, the two input terminals of the bridge rectifier circuit 1 receive the input of the power supply voltage, the bridge rectifier circuit One input end of the type rectification circuit 1 is connected with a thermistor R1. One output terminal of the bridge rectifier circuit 1 is connected in series with the first diode D1 and then connected to the LED lamp bead group, the other output terminal of the bridge rectifier circuit 1 is conne...
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The invention discloses a driver for an indicating lamp in a substation water immersion monitoring system, which comprises a rectifier module and an LED lamp bead group connected with the rectifier module, wherein the rectifier module comprises a bridge rectifier circuit, a first capacitor and a first diode; the bridge rectifier circuit is provided with two input ends and two output ends; one input end of the bridge rectifier circuit is connected with a thermistor; one output end of the bridge rectifier circuit is serially connected with the first diode and is then connected with the LED lampbead group; the other output end of the bridge rectifier circuit is connected with a grounding wire; two ends of the first capacitor are connected onto two output ends of the bridge rectifier circuitrespectively; the LED lamp bead group comprises multiple serial LED lamp beads; and each LED lamp bead in the LED lamp bead group is in parallel connection with a reversely-connected voltage regulatortube. By adopting the above structure, the whole structure is simple, realization is easy, the voltage regulator tube branch in parallel connection onto the LED lamp beads forms the protection line,and an open circuit can be avoided.
Description
technical field [0001] The invention relates to an intelligent control system of a substation, in particular to a driver for an indicator light in a substation flood monitoring system. Background technique [0002] With the development of industry, all walks of life have increasing requirements for the reliability and stability of power supply in the power system. As the core link of the power system, the substation is used to collect power, raise and lower voltage and distribute electric energy, and is responsible for the high power supply in the area. Low-voltage conversion and power supply tasks, therefore, the safe operation of substations is crucial to the power system. In order to ensure the reliable and stable operation of substations, existing substations are generally equipped with flood monitoring systems and water supply and drainage systems. Among them, the water immersion monitoring system of the substation generally adopts the ultrasonic sensor to receive the ...
Claims
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IPC IPC(8): H05B33/08H05B44/00
CPCH05B45/50Y02B20/30
Inventor 黄生林
Owner 黄生林