Voltage transformer module for 10kV electric energy metering device, and electric energy metering device

A technology of electric energy metering device and voltage transformer, which is applied in the field of electric power, can solve problems such as grid voltage increase and reduce the service life of voltage transformers, and achieve the effects of reducing loss, improving reliability, and increasing service life

Active Publication Date: 2017-05-17
ZHONGSHAN POWER SUPPLY BUREAU OF GUANGDONG POWER GRID
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to provide a voltage transformer module and an electric energy metering device for a 10kV electric energy metering device to solve the technical problem that the grid voltage suddenly rises and reduces the service life of each voltage transformer in the traditional scheme

Method used

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  • Voltage transformer module for 10kV electric energy metering device, and electric energy metering device
  • Voltage transformer module for 10kV electric energy metering device, and electric energy metering device
  • Voltage transformer module for 10kV electric energy metering device, and electric energy metering device

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Embodiment Construction

[0014] The voltage transformer module and the electric energy metering device of the 10kV (kilovolt) electric energy metering device provided by the present invention will be described in detail below in conjunction with the accompanying drawings.

[0015] refer to figure 2 , figure 2 Shown is a schematic structural diagram of the voltage transformer module of the 10kV electric energy metering device of an embodiment, as figure 2 As shown, the above voltage transformer module may include a first voltage transformer, a second voltage transformer and a third voltage transformer;

[0016] The first end of the primary coil 11 of the first voltage transformer is connected to the A-phase line on the 10kV grid, the first end of the primary coil 12 of the second voltage transformer is connected to the B-phase line on the 10kV grid, and the third voltage transformer The first end of the primary coil 13 is connected to the C-phase line on the 10kV grid; the end of the primary coil ...

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Abstract

The invention relates to a voltage transformer module for a 10kV electric energy metering device, and an electric energy metering device. The voltage transformer module comprises a first voltage transformer, a second voltage transformer, and a third voltage transformer. The head end of a primary coil of the first voltage transformer is connected with an A-phase line of a 10kV power grid, and the head end of a primary coil of the second voltage transformer is connected with a B-phase line of the 10kV power grid. The head end of a primary coil of the third voltage transformer is connected with a C-phase line of the 10kV power grid. The tail ends of the primary coils of the first, second and third voltage transformers are connected mutually. The tail end of a secondary coil of the first voltage transformer is connected with an A-phase voltage end of an electric energy meter, and the head end of a secondary coil of the second voltage transformer is connected with a B-phase voltage end of the electric energy meter. The head end of a secondary coil of the third voltage transformer is connected with a C-phase voltage end of the electric energy meter. The tail ends of the secondary coils of the first, second and third voltage transformer are connected mutually.

Description

technical field [0001] The invention relates to the field of electric power technology, in particular to a voltage transformer module of a 10kV electric energy metering device and the electric energy metering device. Background technique [0002] For power supply reliability, the current 10kV power grid generally adopts neutral point insulation operation, so that when the power grid is single-phase grounded, only one point of the power grid is grounded, and the power grid can continue to operate for a short time to supply power to users, improving power supply reliability. The electric energy metering voltage transformer module used in this kind of power grid is an important part of the electric energy metering device, and it plays a vital role in the safe operation of the electric energy metering device. [0003] In the traditional scheme, the voltage transformer module of the 10kV electric energy metering device used for grid neutral point insulation usually includes two v...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R15/18
Inventor 陈劲游彭昭煌化振谦蔡春元
Owner ZHONGSHAN POWER SUPPLY BUREAU OF GUANGDONG POWER GRID
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