CN202502244U - Network-operation stability testing system for photoelectric type current transformer - Google Patents
Network-operation stability testing system for photoelectric type current transformer Download PDFInfo
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- CN202502244U CN202502244U CN201220122241XU CN201220122241U CN202502244U CN 202502244 U CN202502244 U CN 202502244U CN 201220122241X U CN201220122241X U CN 201220122241XU CN 201220122241 U CN201220122241 U CN 201220122241U CN 202502244 U CN202502244 U CN 202502244U
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- current transformer
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- mutual inductor
- energy metrical
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Abstract
The utility model relates to a network-operation stability testing system for a photoelectric type current transformer. The system includes a current transformer group, a photoelectric current transformer group, a voltage transformer group, a signal conditioning unit, an electric energy meter I and an electric energy meter II, wherein the current transformer group is connected with the electric energy meter I, the photoelectric current transformer group is connected with the electric energy meter II, the voltage transformer group is connected with the electric energy meter II, and is connected with the electric energy meter I through the signal conditioning unit at the same time. Compared with the prior art, the testing system of the utility model has the advantages of simple structure, low cost, convenient use, and the like.
Description
Technical field
The utility model relates to a kind of test macro, especially relates to a kind of photo-electric current transformer hanging net operation system for testing stability.
Background technology
Along with power system development; The continuous increase of generating and power transmission and transformation capacity; In the near future, the electric system of will fading out step by step of traditional current transformer, the product of novel practical will replace; The photo-electric current transformer is exactly representative wherein, and advantage such as, strong interference immunity little because of its measuring error has obtained widespread use.
Rise along with the photo-electric current transformer; Need carry out fail-test to photo-electric current transformer hanging net operation; But WT-MSR in the market only carries out simple electric energy metrical; Lack corresponding detection system and be used for the error in dipping of new electric energy WT-MSR with traditional electric power meter compared, apply for disclosing a kind of electric energy meter, shell parade one's wealth protecgulum and bonnet like utility model patent 201020697063.4; Described protecgulum and bonnet fix, and electric energy meter also comprises anti-theft warning circuit.This gauging table test result is single, and can not compare test data.
Summary of the invention
The purpose of the utility model is exactly that a kind of simple in structure, measurement data is diversified, measuring accuracy is high photo-electric current transformer hanging net operation system for testing stability is provided in order to overcome the defective that above-mentioned prior art exists.
The purpose of the utility model can realize through following technical scheme:
A kind of photo-electric current transformer hanging net operation system for testing stability; It is characterized in that; This system comprises current transformer group, optical current mutual inductor group, voltage transformer (VT) group, signal condition unit, electric energy metrical Table I and electric energy metrical Table II, and described current transformer group connects the electric energy metrical Table I, and described optical current mutual inductor group connects the electric energy metrical Table II; Described voltage transformer (VT) group connects the electric energy metrical Table II, connects the electric energy metrical Table I through the signal condition unit simultaneously.
Described current transformer group is made up of a plurality of current transformers of parallel connection, and described optical current mutual inductor group is made up of the optical current mutual inductor of a plurality of parallel connections, and described voltage transformer (VT) group is made up of the voltage transformer (VT) of a plurality of parallel connections.
Described current transformer is provided with 2-10, and described optical current mutual inductor is provided with 2-10, and described voltage transformer (VT) is provided with 2-10.
Compared with prior art, the utlity model has advantage simple in structure, that cost is low, easy to use.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is elaborated.
Embodiment
As shown in Figure 1; A kind of photo-electric current transformer hanging net operation system for testing stability comprises current transformer group 1, optical current mutual inductor group 2, voltage transformer (VT) group 3, signal condition unit 4, electric energy metrical Table I and electric energy metrical Table II; Current transformer group 1 connects the electric energy metrical Table I; Optical current mutual inductor group 2 connects the electric energy metrical Table II, and voltage transformer (VT) group 3 connects the electric energy metrical Table II, connects the electric energy metrical Table I through signal condition unit 4 simultaneously.
Wherein, current transformer group 1 is made up of 3 current transformers of parallel connection, and optical current mutual inductor group 2 is made up of the optical current mutual inductor of 3 parallel connections, and voltage transformer (VT) group 3 is made up of the voltage transformer (VT) of 3 parallel connections.
The electric energy metrical Table I receives the numeral output electric power signal of being made up of voltage transformer (VT) and optical current mutual inductor, and the electric energy metrical Table II receives by traditional mutual inductor---and the analog electrical output that the voltage transformer (VT) summation current transformer is formed can signal.
Two electric energy metered systems are formed difference, different, the electric energy meter working method difference of signal transmission form, so there is difference in the theoretical error of two parallel systems limit.
Record through analysis of experiments, the analog electrical output that traditional mutual inductor is formed can the metering system theoretical error be limited to 0.7%, and the theoretical error of the numeral that optical current mutual inductor is formed output electric energy metered system is limited to 0.4%.
So electric energy metered system that the comprehensive measuring accuracy of the electric energy metered system that the theoretical analysis optical current mutual inductor is formed is formed far above traditional mutual inductor.
Claims (3)
1. photo-electric current transformer hanging net operation system for testing stability; It is characterized in that; This system comprises current transformer group, optical current mutual inductor group, voltage transformer (VT) group, signal condition unit, electric energy metrical Table I and electric energy metrical Table II, and described current transformer group connects the electric energy metrical Table I, and described optical current mutual inductor group connects the electric energy metrical Table II; Described voltage transformer (VT) group connects the electric energy metrical Table II, connects the electric energy metrical Table I through the signal condition unit simultaneously.
2. a kind of photo-electric current transformer hanging net operation system for testing stability according to claim 1; It is characterized in that; Described current transformer group is made up of a plurality of current transformers of parallel connection; Described optical current mutual inductor group is made up of the optical current mutual inductor of a plurality of parallel connections, and described voltage transformer (VT) group is made up of the voltage transformer (VT) of a plurality of parallel connections.
3. a kind of photo-electric current transformer hanging net operation system for testing stability according to claim 2; It is characterized in that; Described current transformer is provided with 2-10, and described optical current mutual inductor is provided with 2-10, and described voltage transformer (VT) is provided with 2-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220122241XU CN202502244U (en) | 2012-03-27 | 2012-03-27 | Network-operation stability testing system for photoelectric type current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220122241XU CN202502244U (en) | 2012-03-27 | 2012-03-27 | Network-operation stability testing system for photoelectric type current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202502244U true CN202502244U (en) | 2012-10-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220122241XU Expired - Lifetime CN202502244U (en) | 2012-03-27 | 2012-03-27 | Network-operation stability testing system for photoelectric type current transformer |
Country Status (1)
| Country | Link |
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| CN (1) | CN202502244U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104535957A (en) * | 2014-12-08 | 2015-04-22 | 云南电网公司电力科学研究院 | Measuring accuracy comparison device of intelligent substation |
-
2012
- 2012-03-27 CN CN201220122241XU patent/CN202502244U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104535957A (en) * | 2014-12-08 | 2015-04-22 | 云南电网公司电力科学研究院 | Measuring accuracy comparison device of intelligent substation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121024 |