FTU super capacitor backup capability detection system and method

A technology of supercapacitor and voltmeter, which is applied in the direction of capacitance measurement, measurement device, and measurement of electrical variables, etc., to achieve the effect of improving operation and maintenance capabilities, preventing distribution network automation accidents, and preventing capacity degradation

Pending Publication Date: 2022-03-25
YUNNAN POWER GRID CO LTD PUER POWER SUPPLY BUREAU
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Problems solved by technology

[0003] In order to solve the above problems, the present invention proposes a FTU supercapacitor backup capacity detection system and method to solve the problem that there are no relevant test methods for the supercapacitor backup capacity of more than 20,000 power distribution automation terminal (FTU) supercapacitors in Yunnan power grid during professional inspections. The problem with testing

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  • FTU super capacitor backup capability detection system and method
  • FTU super capacitor backup capability detection system and method
  • FTU super capacitor backup capability detection system and method

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[0029] The following will clearly and completely describe the technical solutions in the embodiments with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present application.

[0030] Unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application shall have the usual meanings understood by those skilled in the art. "First", "second" and similar words used in this embodiment do not indicate any order, quantity or importance, but are only used to distinguish different components. "Comprising" or "comprising" and similar words mean that the elements or items appearing before the word include the elements or items listed after the word and th...

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Abstract

The invention relates to an FTU super capacitor backup capability detection system and method, the system comprises a shell, a voltmeter, an ammeter, a timer and a discharge resistor are arranged in the shell, one end of a switch is connected with one end of the voltmeter and one end of the ammeter, the other end of the ammeter is connected with one end of the timer, and the other end of the timer is connected with the other end of the voltmeter; the other end of the switch is connected with one end of the pluggable male-female plug, and the other end of the voltmeter is connected with the other end of the pluggable male-female plug; the two-end pluggable male and female plug is connected with the super capacitor; and the timer is used for recording the change values of the voltage and current values in different time periods in seconds. Complete test data can be quickly, efficiently, accurately and safely obtained, the super capacitor can be quickly judged, the risks of power loss of a distribution network automation FTU main control unit and a communication module and misoperation of a circuit breaker can be avoided, distribution network automation accidents are prevented, and the power grid distribution network automation operation and maintenance capacity is improved.

Description

technical field [0001] The invention relates to the field of power grid distribution network, and specifically relates to a system and method for detecting the backup capacity of an FTU supercapacitor. Background technique [0002] At present, more than 20,000 distribution automation terminals (FTUs) have been installed in Yunnan Power Grid, all of which use supercapacitors (working voltage 24V) as backup power sources. The capacity requirements for supercapacitors are: after AC power failure, the drive switch should be able to open and close Except for 3 operations each; it can still work normally for more than 15 minutes; and when the controller is powered by a backup power supply, various telemetry and remote signaling data of the controller should be sent normally; the service life is ≥ 5 years. During use, it was found that the supercapacitor capacity of some terminals does not meet the requirements (specifically, the normal working time is less than 10 minutes), and th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R27/26
CPCG01R27/2605
Inventor 张东海王洪林史俊杨振江谢应红张海灵毛睿左学庚
Owner YUNNAN POWER GRID CO LTD PUER POWER SUPPLY BUREAU
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