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Distribution transformer automatic gauging device

A technology for distribution transformers and automatic metering, which is applied in the direction of electrical devices, measuring devices, and measuring electrical variables. It can solve the problems of inconvenient construction, easy modification and damage of metering equipment, and inaccurate data measurement, so as to improve monitoring The effect of management level

Active Publication Date: 2008-05-21
JIANGSU TONGCHI POWER AUTOMATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the electric power department implements electric energy metering and distribution condition monitoring indirectly through the distribution back-end equipment outside the distribution transformer. Inaccurate measurement, etc.
In short, the existing electric energy measurement and collection of distribution transformer working status are indirect, or not quantitative enough, which has become a bottleneck to improve the level of power distribution management.

Method used

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  • Distribution transformer automatic gauging device
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Embodiment

[0015] Referring to Fig. 1, the embodiment of the present invention is composed of a voltage transformer, a current transformer, a high-voltage capacitive voltage divider, a suspended power supply unit, a metering unit, a distribution parameter monitoring unit, and a wireless transmission unit, wherein the suspended power supply unit is A wide dynamic and stable feeding power supply, specially designed to take power from the high-voltage power grid, and apply the bootstrap stable principle to output voltage to meet actual needs; the wireless transmission unit adopts two-way wireless transmission and reception, and constructs an adaptive low-power radio frequency transmission algorithm, Combining ASK or FSK, POLLING and other standard mechanisms, it ensures the wireless data exchange inside the distribution transformer automatic metering device and the wireless data transmission with the field service terminal; the metering unit installed on the primary side establishes a "virtua...

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Abstract

The invention discloses an automatic metering device for distribution transformers, in particular to an automatic metering device arranged inside a distribution transformer, belonging to local or remote power distribution management system field. The invention comprises a voltage transformer, a current transformer, a high voltage capacitive divider, a suspension type power supply unit, a metering unit, a monitoring unit for distribution transform parameters, and a wireless transmission unit. The invention has the advantages that a primary side of the distribution transformer can be metered; as the invention can simultaneously meter the secondary side of the distribution transformer, thus the distribution transformer loss of system can be calculated, the monitoring management level of distribution then can be improved obviously, and the invention can also apply in remote distribution management systems conveniently.

Description

technical field [0001] The invention relates to an automatic electric energy metering device installed inside a distribution transformer, in particular to an automatic electric energy metering device installed inside a distribution transformer to realize primary side and secondary side electric energy metering, distribution transformer operating condition monitoring and has a wireless Metering device with data transmission function. It can be applied to electric energy metering, distribution transformer operating parameter monitoring and distribution transformer line loss calculation. Background technique [0002] At present, the electric power department implements electric energy metering and distribution condition monitoring indirectly through the distribution back-end equipment outside the distribution transformer. Inaccurate measurements etc. In short, the existing electric energy measurement and collection of distribution transformer working status are indirect, or n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08C17/00G01R19/00G01R21/00G01R25/00
CPCG01R21/133
Inventor 周秉仁李宝亮
Owner JIANGSU TONGCHI POWER AUTOMATION
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