On-line maintenance method of accumulator capacity of direct current operative power source of substation

A technology for operating power supplies and batteries, which is applied in the repair/maintenance of secondary batteries, and can solve problems such as lack of maintenance of ministry or national standards, and achieve the effect of avoiding deep damage

Inactive Publication Date: 2010-06-23
XINYANG POWER SUPPLY OF HENAN ELECTRIC POWER CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The power department stipulates that sealed batteries should be maintained, but there is no ministry standard or national standard for maintenance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1: The online maintenance of the capacity of the storage battery of the DC operating power supply of the substation is carried out according to the following steps:

[0020] Detection: For substations with normal operating status, cut off the AC power supply, and the battery supplies power to the control cabinet independently, and use the battery reserve capacity detector to detect the load voltage value U of the battery one by one. F , and record, the voltage value displayed by the control cabinet should be continuously observed during detection, which is lower than the safe use standard voltage U A The battery should stop measuring immediately; for a battery with a rated voltage of 110V, it is safe to use the standard voltage U A It is 93V. For batteries with a rated voltage of 220V, it is safe to use the standard voltage U A is 186V. For the 12V conjoined battery used in UPS power supply, it is safe to use the standard voltage U A is 10V.

[0021] Repl...

Embodiment 2

[0026] Embodiment 2: On-line maintenance of battery capacity of substation DC operating power supply, the specific steps are:

[0027] Detection: For substations in normal operating state, cut off the AC power supply, and the battery supplies power to the control cabinet independently. The rated voltage of the battery is 110V. Use the battery reserve capacity detector to detect the load voltage value U of the battery one by one. F , and record, the voltage value displayed by the control cabinet should be continuously observed during the test, and the measurement should be stopped immediately when it is lower than 93V;

[0028] Replacement: put the load voltage value U F Replace the battery below 93V to ensure the balance of battery pack capacity;

[0029] Water replenishment: After adding water to the battery to the height of the plate, add water at a ratio of 500mL / 500Ah according to its structural capacity, and record the height of the liquid level at this time. Every time ...

Embodiment 3

[0031] Embodiment 3: In this embodiment, in the water replenishment step, add water according to the structural capacity of the battery at a ratio of 1500mL / 500Ah, in the charging step, adjust and calibrate the floating charge voltage to 110V, and the others are the same as in Embodiment 2.

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Abstract

The invention discloses an on-line maintenance method of accumulator capacity of a direct current operative power source of a substation, which comprises the steps of detecting, replacing, supplementing water, charging and the like, particularly, firstly, detecting and replacing an accumulator with low capacity, supplementing water of the replaced accumulator to reach a polar plate, then adding water by the proportion of 500ml / 500Ah-1500ml / 500Ah according to the structural capacity; and secondly, charging for the accumulator, adjusting and calibrating a charge voltage to reach 98.18-101.82 percent of a rated voltage to enable the final reservation capacity of the accumulator not to be lower than 80 percent of the structural capacity. By the method, the accumulator can not generate irreversible sulfate damage, the deep damage of the accumulator can be prevented and avoided, the safety service time of the accumulator can reach above 8 years, resources and energy source consumption can be reduced, and remarkable technical benefit and economic benefit can be brought for the electric power department.

Description

Technical field: [0001] The invention relates to a maintenance method for a storage battery, in particular to an online maintenance method for the storage battery capacity of a substation DC operating power supply. Background technique: [0002] Sealed storage batteries used in substations are generally used as backup power sources for DC operating power systems in substations. However, due to improper maintenance, the battery damage rate is very high. The current statistical life expectancy is that when it is used for about 3 years, the structural capacity will drop to 80%. the following. The structural capacity refers to the actual capacity of the battery after it is fully charged. During the use of the battery, the structural capacity of the battery undergoes a hump process of "first rising and then falling". The shape of the hump depends on the manufacturing process and use conditions, and the structural capacity is low. Due to the use of standards, the reserved capacit...

Claims

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Application Information

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IPC IPC(8): H01M10/42
CPCY02E60/12Y02E60/10
Inventor 张海峰王志新彭勇李新袁斌刘蓉段万普
Owner XINYANG POWER SUPPLY OF HENAN ELECTRIC POWER CORP
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