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Method for measuring daily line loss of medium-voltage user equipment

A technology of user equipment and measurement method, which is applied in the field of power system to achieve the effect of ensuring normal operation

Inactive Publication Date: 2014-04-23
STATE GRID CORP OF CHINA +2
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

For the equipment line loss analysis of medium-voltage users, since there is no system that directly provides accurate daily power for medium-voltage users, the dimension and accuracy of line loss analysis have been unsolved problems

Method used

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  • Method for measuring daily line loss of medium-voltage user equipment

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Embodiment Construction

[0022] The specific present invention is described below through a specific example.

[0023] A method for measuring the daily line loss of medium-voltage user equipment, the method obtains the precise value of the daily line loss of medium-voltage user equipment through accurate daily power consumption of medium-voltage user equipment, figure 1 It is the measurement flow chart of the line loss of the medium-voltage user equipment. Specific steps are as follows:

[0024] 1. When cleaning the data of the production system and marketing system, obtain the ledger information of the marketing meter. The meter number is "K003205640", the corresponding medium-voltage user is "Central Shopping Mall", and the meter ratio is "100 / 10". It is stored as 10 at the time of storage, the CT ratio is "500 / 5", the storage is 100 at the time of storage, the PT ratio is "100 / 20", and the storage is 5 at the time of storage.

[0025] 2. Obtain the power of the outlet switch corresponding to the ...

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Abstract

The invention discloses a method for measuring the daily line loss of medium-voltage user equipment; by the accurate medium-voltage user daily electric quantity, the precise numerical value of daily line loss of the medium-voltage user equipment is obtained. The method comprises the concrete steps: obtaining a standing book of a medium-voltage user ammeter; obtaining an intraday reading of the medium-voltage user ammeter from a usage and collection system; under normal circumstances, directly calculating to obtain a daily normal electric quantity of the medium-voltage user according to a electric quantity computational formula; considering specially for a special state of the ammeter; applying the obtained daily electric quantity of the medium-voltage user to line loss computation, so as to obtain the accurate daily line loss of the medium-voltage user equipment. According to the method, by the accurate daily electric quantity of the medium-voltage user, the precise numerical value of the daily line loss of the medium-voltage user equipment is obtained, and a powerful basis is provided for loss reduction analysis.

Description

technical field [0001] The invention belongs to the field of power systems, and relates to a method for measuring daily line loss of medium-voltage user equipment. Background technique [0002] At present, due to the different settlement cycles of medium-voltage users, not every medium-voltage user is settled on a daily basis, so the daily electricity of medium-voltage users cannot be directly obtained. However, the power consumption of medium-voltage users varies greatly, so it is necessary to analyze the line loss according to the daily electricity consumption of medium-voltage users, so as to detect abnormal equipment loss of medium-voltage users in time. In the line loss system provided by the marketing, only the query of the monthly power consumption of medium-voltage users is provided. If the line loss is counted according to the monthly electricity, the abnormal line loss will not be found within one month. Once an abnormality occurs in a certain equipment, it will n...

Claims

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Application Information

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IPC IPC(8): G01R31/00G01R31/08
Inventor 王成现朱红明许斌锋
Owner STATE GRID CORP OF CHINA
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