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Quantitative scoring method of power equipment state

A technology of power equipment and state quantity, applied in the direction of instruments, data processing applications, forecasting, etc., can solve problems such as insufficient maintenance, large proportion, and redundant maintenance, so as to avoid hidden dangers of equipment and improve the effect of safe and reliable operation

Inactive Publication Date: 2012-08-08
KAILI POWER SUPPLY BUREAU +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the lack of accurate data on risk assessment models and quantitative risk assessment indicators, the risk value depends on the personal experience of the evaluator, and the risk assessment value obtained, because personal subjective factors account for a large proportion, it is easy to cause risk assessment to fail due to personal experience , resulting in under-maintenance or over-maintenance

Method used

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  • Quantitative scoring method of power equipment state
  • Quantitative scoring method of power equipment state
  • Quantitative scoring method of power equipment state

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0049] The list of device state quantities is shown in Table 1. Each state quantity has public attributes such as classification, name, collection frequency, measurement unit, weight, whether to use it, and remarks.

[0050] Equipment type

Part Name

State quantity name

Acquisition frequency

unit of measurement

Weights

Whether to enable

Remark

transformer

Defect situation

familial defect

sky

3

Yes

transformer

Defect situation

historical flaw

sky

times / period

2

Yes

transformer

ontology

Short circuit surge current

sky

A

3

Yes

transformer

ontology

Short circuit times

sky

Second-rate

3

Yes

transformer

ontology

Short circuit impedance

sky

Ω

3

Yes

transformer

ontology

transformer overload

minute

2

Yes

tra...

specific Embodiment 2

[0060] In this embodiment, the circuit breaker 102 of the 110kV Kaiding line in the 220kV Kaili substation is simulated as the evaluation equipment, the current state evaluation attention, the equipment score is 80, and the prediction score is 80. as shown in Table 3.

[0061]

[0062] table 3

[0063] Validation analysis:

[0064] 1. Verify that the equipment status rating is correct

[0065] The state of the equipment is judged to be attention, and the state of the equipment is determined by the state of the worst component. Among the five components of the equipment (overview, body, operating mechanism, shunt capacitor, closing resistor), the operating mechanism is in the state of attention, and the others are in the normal state. , so the device status is set to Attention, as shown in the above table.

[0066] 2. Verify that the parts are rated correctly

[0067] Comparing the circuit breaker component grading table in Table 4, it can be concluded that the number of e...

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PUM

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Abstract

The invention discloses a quantitative scoring method of a power equipment state. The method comprises the following steps of: collecting parameters of power equipment state quantity; calculating an equipment state quantity score according to a scoring rule made in advance; according to a reasonable score set in the scoring rule, determining whether the equipment is normal or not. According to the invention, state evaluation in a state overhaul field is refined, being different from a general overhaul system, the method of the invention focuses on equipment state scoring, predication assessment and risk control, and overhaul personnel and pretesting personnel are helped to grasp the present running information of the equipment in real time. By using the method of the present invention, blindness in the process of equipment maintenance can be obviously reduced, maintenance deficiency or excess is avoided, at the same time, a large amount of repair cost is saved, the safe and stable operation of the equipment are ensured.

Description

technical field [0001] The invention belongs to the field of equipment condition maintenance in electric power enterprises, and in particular relates to a quantitative scoring method for the state of electric equipment. Background technique [0002] With the rapid development of the power system, the continuous expansion of the system scale, and the rapid growth of the number of equipment in the system, the traditional "one-size-fits-all" regular maintenance model does not evaluate the status of power transmission and transformation equipment. Because the maintenance time is fixed, there are maintenance problems. The drawbacks of under- and overhauling excess. Insufficient maintenance, the repairable equipment cannot be repaired in time, resulting in an increase in the failure rate of power transmission and transformation equipment; excessive maintenance, resulting in a lot of waste of manpower and material resources, excessive maintenance causes irreversible damage to equip...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q50/06G06Q10/04
Inventor 许良柱吴建国陈荣朱勇蒋友权杨昌甫兰箭刘嵩张野飚刘红超高灵超陈清水
Owner KAILI POWER SUPPLY BUREAU
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