Power line carrier comprehensive test system and test method
A power line carrier and comprehensive testing technology, applied in distribution line transmission systems, line transmission monitoring/testing, line transmission components, etc., to achieve the effects of low cost, multiple detection functions, and simple system platform
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Embodiment 1
[0034] Such as figure 1 The illustrated embodiment is a power line carrier comprehensive test system, including a first power filter 1, a first artificial power network 2, a first centimeter 3, a first carrier attenuator 4, a spectrum analyzer 5, and a first program-controlled switch 6. The device under test 7, the third centimeter 18, the noise generator 19 and the first cabinet 20; the first artificial power network is electrically connected to the first power filter, the first centimeter and the first program-controlled switch respectively, and the first A program-controlled switch is electrically connected to the device under test, the first carrier attenuator is electrically connected to the first centimeter and the spectrum analyzer respectively, and the third centimeter is electrically connected to the first artificial power network, the first centimeter and the noise generator respectively; Both the first centimeter and the third centimeter are two-in-one centimeters; ...
Embodiment 2
[0059] Embodiment 2 includes all the structures in Embodiment 1, and Embodiment 2 also includes a second power filter 8, a second artificial power network 9, a second centimeter 10, a second carrier attenuator 11, and a second programmable switch 12 , resistance load 13, copy controller 14, ammeter 15, oscilloscope and second cabinet machine 21; The second artificial power supply network is electrically connected with the second power supply filter, the second centimeter and the first program-controlled switch respectively, and the second program-controlled switch It is electrically connected with the copy controller and the electric meter respectively, the second carrier attenuator is electrically connected with the second centimeter and the first dichotomer respectively, and the second centimeter is electrically connected with the resistive load; the second centimeter is a two-in-one centimeter ; The second carrier attenuator is a program-controlled attenuator; the second pow...
Embodiment 3
[0070] Embodiment 3 includes all the structures of Embodiment 1 and Embodiment 2. Embodiment 3 also includes a third program-controlled switch 16 and a carrier load 17; connection; the third program-controlled switch and the carrier load are located in the first cabinet.
[0071] A method for testing the carrier load capacity of a power line carrier comprehensive test system, the specific steps are as follows: setting the multiple of the program-controlled attenuator, setting the carrier load, and opening the third program-controlled switch; the carrier load continuously sends read and write commands, and the spectrum analyzer is turned on. Set the resolution of the peak detector of the spectrum analyzer to 200Hz; find the center frequency and level value corresponding to the highest point of the peak within the carrier frequency band.
[0072] A test method for the durability of a power line carrier comprehensive test system, which also includes a multi-channel temperature in...
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