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DC battery monitoring device

A monitoring device and battery technology, which is applied in the direction of measuring device, measuring electricity, continuity test, etc., can solve problems such as fault overstepping, total station protection and control loop loss of DC power, and achieve the effect of ensuring safe and reliable operation.

Active Publication Date: 2021-02-23
XINZHOU POWER SUPPLY COMPANY STATE GRID SHANXI ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the protection and control circuits of the whole station lost the DC power supply, and the monitoring system did not alarm, causing the fault to leapfrog

Method used

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Embodiment Construction

[0011] A DC battery monitoring device, comprising a voltage connection port, a voltage acquisition module, a processor, a button module, a display module, a communication module, a clock module, a power module and an alarm module (such as image 3 shown); the voltage wiring port is two groups, and its input end is used for collecting the voltage from DC storage battery and DC bus bar system respectively; Voltage wiring port is connected with voltage acquisition module; The signal output end of voltage acquisition module is connected with processor The signal input terminal is connected; the key module, display module, communication module, clock module, power module and alarm module are all connected to the processor; the processor includes a pressure difference calculation unit, a balance bridge current test unit and an alarm circuit; the voltage difference operation unit includes an inverting amplifier, the voltage signal of the DC bus system is input to the inverting input o...

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Abstract

The invention relates to the primary circuit of a substation DC system and the field of substation measurement and control devices. Specifically, it is a direct current storage battery monitoring device. It solves the technical problem that the current DC system lacks a device capable of effectively monitoring whether the DC storage battery is online. A DC battery monitoring device, comprising a voltage connection port, a voltage acquisition module, a processor, a button module, a display module, a communication module, a clock module, a power supply module, and an alarm module; the voltage connection ports are divided into two groups, and the input terminals are respectively It is used to collect the voltage from the DC storage battery and the DC bus system; the voltage wiring port is connected to the voltage collection module; the signal output terminal of the voltage collection module is connected to the signal input terminal of the processor; the button module, the display module and the communication module , a clock module, a power supply module and an alarm module are all connected to the processor; the processor includes a pressure difference calculation unit, a balance bridge current test unit and an alarm circuit.

Description

technical field [0001] The invention relates to the primary circuit of a substation DC system and the field of substation measurement and control devices. In particular, the invention relates to wiring of a DC system of a substation, in particular to a DC storage battery monitoring device. Background technique [0002] At present, the substation does not have a more comprehensive monitoring device for the secondary circuit of the voltage transformer. When the secondary circuit is abnormal or faulty, it cannot be detected and eliminated in time, thus affecting the normal operation of the relay protection device. In view of the main transformer burning accident of the 330 kV Nanjiao Substation (110 kV Weiqu Substation) of the State Grid Shaanxi Electric Power Company in Xi'an, Shaanxi, the 35 kV Wei In line III failure, Weiqu substation's 35 kV and 10 kV busbar voltages drop, #1, #2, #0 substations use substation low voltage side to trip, and the DC system loses AC power. Th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/3842G01R31/54
CPCG01R31/50
Inventor 刘云飞韩昱史新华张毓李慧伟贾峰董瑾白俊峰闫效康郝俊卿赵星仓贾珍
Owner XINZHOU POWER SUPPLY COMPANY STATE GRID SHANXI ELECTRIC POWER
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