CN210294493U - Shore power supply electric energy quality testing device - Google Patents
Shore power supply electric energy quality testing device Download PDFInfo
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- CN210294493U CN210294493U CN201920544230.2U CN201920544230U CN210294493U CN 210294493 U CN210294493 U CN 210294493U CN 201920544230 U CN201920544230 U CN 201920544230U CN 210294493 U CN210294493 U CN 210294493U
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Abstract
The utility model discloses a bank electricity power supply electric energy quality testing arrangement, including setting up the test bench in joining in marriage the electrical room, the test bench includes the electric wire netting, bank electricity conversion equipment, the shipborne load, multichannel power analysis appearance, industrial computer and electric energy quality type monitor terminal, bank electricity conversion equipment's first end and one end of shipborne load and a channel connection of multichannel power analysis appearance, bank electricity conversion equipment's second end and one end of electric wire netting and another channel connection of multichannel power analysis appearance, bank electricity conversion equipment's third end is connected with the other end of shipborne load, bank electricity conversion equipment's fourth end is connected with the other end of electric wire netting, the industrial computer is connected with multichannel power analysis appearance, electric energy quality type monitor terminal is connected with multichannel power analysis appearance; the incoming line department of the power distribution room, the power supply and distribution department of all outgoing lines and shore power conversion devices and the shipborne load are provided with detection points, and the electric energy quality type monitoring terminal is installed at the positions of the detection points. The utility model discloses possess the electric energy quality multiple spot test ability.
Description
Technical Field
The utility model relates to a bank electricity power test field, in particular to bank electricity power quality testing arrangement.
Background
Electric energy substitution is an important means for relieving the urban haze phenomenon and reducing pollutant emission. The popularization of electric energy substitution is a major strategic task of current state network companies, and dispersed electric heating of port shore power, electric (heat storage) boilers, carbon crystals and the like becomes a key technical field of electric energy substitution popularization due to the advantages of huge substituted electric quantity, good market prospect and the like.
The electric energy replacement project relates to various distributed replacement products (such as distributed electric heating, heat pump air conditioners, electric water heaters and the like), the metering difficulty of a special line special meter is high for the equipment, the equipment subsidy is gradually changed into price subsidy for the equipment, and particularly after the electricity distribution and sale market is released, the measurement and verification of an on-demand metering and confirming mode of an electric automobile battery replacement battery for the products are urgently needed.
At present, along with the rapid popularization of the technology, the demand of the market for detecting the power quality of the shore power supply is increasing day by day. The prior art only has the capability of single-point testing of the electric energy quality and does not have the capability of multi-point testing of the electric energy quality. In consideration of the urgent need of the electric energy alternative market, the experimental capacity construction in the above aspects is urgently needed to be enhanced.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect of prior art, provide a bank electricity power quality testing arrangement who possesses electric energy quality multiple spot test ability.
The utility model provides a technical scheme that its technical problem adopted is: the shore power supply electric energy quality testing device comprises a test bed arranged in a power distribution room, wherein the test bed comprises a power grid, a shore power conversion device, a shipborne load, a multi-channel power analyzer, an industrial personal computer and an electric energy quality type monitoring terminal, a first end of the shore power conversion device is respectively connected with one end of the shipborne load and one channel of the multi-channel power analyzer, a second end of the shore power conversion device is respectively connected with one end of the power grid and the other channel of the multi-channel power analyzer, a third end of the shore power conversion device is connected with the other end of the shipborne load, a fourth end of the shore power conversion device is connected with the other end of the power grid, the industrial personal computer is connected with the multi-channel power analyzer, and the electric energy quality type monitoring terminal is connected with the multi-channel power analyzer; the system comprises a power distribution room, a shore power conversion device, a shipborne load and an electric energy quality type monitoring terminal, wherein detection points are arranged at the wire inlet positions of the power distribution room, detection points are arranged at all wire outlets in the power distribution room, detection points are arranged at the power supply and distribution positions of the shore power conversion device, detection points are arranged at the shipborne load, and the electric energy quality type monitoring terminal is arranged at the positions of.
Shore power supply electric energy quality testing arrangement in, electric energy quality type monitor terminal is electric power efficiency monitoring V type electric energy quality type monitor terminal.
In the shore power supply electric energy quality testing device, the test bench still includes current transformer, current transformer with multichannel power analyzer connects.
In the shore power supply electric energy quality testing device, the test bench still includes the strapping table, the strapping table with multichannel power analysis appearance is connected.
In the shore power supply electric energy quality testing device, the test bench still includes acquisition terminal, acquisition terminal with multichannel power analyzer connects.
In the shore power supply electric energy quality testing device, the test bench still includes measurement wide band voltage transformer, measurement wide band voltage transformer with multichannel power analysis appearance is connected.
In the shore power supply electric energy quality testing device, the multichannel power analyzer is provided with six channels.
Implement the utility model discloses a bank electricity power quality of electricity testing device has following beneficial effect: because the test bench includes electric wire netting, bank electricity conversion equipment, on-board load, multichannel power analysis appearance, industrial computer and electric energy quality type monitor terminal, the installation of inlet wire department of joining in marriage the electrical room is provided with the check point, all being qualified for the next round of competitions in joining in marriage the electrical room are provided with the check point, bank electricity conversion equipment's power supply and distribution department is provided with the check point, and on-board load is provided with the check point, and electric energy quality type monitor terminal installs the position at the check point, because the check point has a plurality ofly, consequently the utility model discloses possess electric energy quality multiple.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is the utility model discloses bank electricity power supply electric energy quality testing arrangement in an embodiment the structural schematic diagram of test bench.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model discloses in the embodiment of the shore power supply electric energy quality testing device, this shore power supply electric energy quality testing device is including setting up the test bench in joining in marriage the electrical room, and the schematic structure diagram of this test bench is shown in FIG. 1. In fig. 1, the test bed includes a power grid 1, a shore power conversion device 2, a shipborne load 3, a multi-channel power analyzer 4, an industrial personal computer 5 and a power quality type monitoring terminal 6, wherein a first end of the shore power conversion device 2 is connected with one end of the shipborne load 3 and one channel CH2 of the multi-channel power analyzer 4 respectively, a second end of the shore power conversion device 2 is connected with one end of the power grid 1 and the other channel CH1 of the multi-channel power analyzer 4 respectively, a third end of the shore power conversion device 2 is connected with the other end of the shipborne load 3, a fourth end of the shore power conversion device 2 is connected with the other end of the power grid 1, the industrial personal computer 5 is connected with the multi-channel power analyzer 4, and the power quality type monitoring terminal 6 is connected with the multi-channel power analyzer.
The conversion efficiency of shore power supplies such as 50Hz/380V, 60Hz/440V and the like is considered in design. In the aspect of setting the detection points, the inlet wire of the power distribution room is provided with the detection points, all outlet wires in the power distribution room are provided with the detection points, the power supply and distribution of the shore power conversion device 2 are provided with the detection points, and the load area (shipborne load 3) is provided with the detection points. The power quality type monitoring terminal 6 is installed at the position of the detection point. Because the check point has a plurality ofly, consequently the utility model discloses possess electric energy quality multiple spot test ability.
In this embodiment, the power quality type monitoring terminal 6 is a power efficiency monitoring V-type power quality type monitoring terminal. The utility model discloses can measure three unbalance terms, harmonic and the voltage flicker of bank electricity power. The V-shaped power quality type monitoring terminal for monitoring the power efficiency is arranged at a detection point, can acquire three-phase unbalance parameters, harmonic sum parameters 2-50 times, voltage flicker, frequency deviation, voltage fluctuation, instantaneous or transient overvoltage, waveform distortion (harmonic), voltage sag, interruption, temporary rise, power supply continuity and other power quality parameters of the detection point, and displays measured data in real time (the sampling density can be defined and is as small as 1 second)
It should be noted that, in the present embodiment, the shore power supply refers to a port shore power supply, which is a large-capacity shore power supply system that supplies the entire power utility power to the ship during the arrival of the ship.
The quality of electric energy, that is, the quality of electric energy in an electric power system, and the main indexes for measuring the quality of electric energy include voltage, frequency and waveform. In a general sense, high quality power supply is meant, including voltage quality, current quality, power supply quality and power consumption quality. The power quality issue can be defined as: deviations in voltage, current, or frequency that result in a fault or improper operation of a consumer include, among other things, frequency deviations, voltage fluctuations and flicker, three-phase imbalance, transient or transient over-voltages, waveform distortion (harmonics), voltage sags, interruptions, surges, and power supply continuity.
The industrial personal computer 5 collects relevant data and can control and record the data. The electric energy quality parameter curve/bar graph/table mode of the detection point can be displayed through the industrial personal computer 5: the method comprises the steps of detecting point three-phase unbalance degree parameters, harmonic sum parameters of 2-50 times, voltage flicker, frequency deviation, voltage fluctuation, instantaneous or transient overvoltage, waveform distortion (harmonic), voltage sag, interruption, temporary rise and power supply continuity, displaying out-of-limit values with abnormal colors, alarming the exceeding of electric energy quality in real time, inquiring historical data of detecting points, historical data and real-time data of electric energy quality in the same ratio in time periods, inquiring historical data of different detecting points on the same interface for comparison, and displaying the electric energy quality index data of the detecting points and the shore power supply in each dimension.
It is worth mentioning that the multi-channel power analyzer 4 is currently configured with six channels in a general standard. In fig. 1, two channels CH1 and CH2 are shown as an example, and in practical applications, the number of channels of the multi-channel power analyzer 4 may be adjusted according to specific situations, that is, the number of channels of the multi-channel power analyzer 4 may be increased or decreased according to specific situations, for example: four channels, eight channels, etc.
In this embodiment, the test bed further includes a current transformer 7, and the current transformer 7 is connected with the multichannel power analyzer 4. The current transformer 7 is mainly used for converting a large current in an alternating current circuit into a small current with a certain proportion (5 ampere times in the national standard) for measurement and relay protection. In the process of power generation, transformation, transmission and distribution, the current is from dozens of amperes to tens of thousands of amperes due to different electric equipment, and the circuits can be accompanied by high voltage. Then, in order to monitor and measure the circuits of these lines and to solve the danger of high voltage and high current, a current transformer is needed. The clamp meter for electrician is a device for measuring AC current, and the clamp is a through current transformer.
The current transformer 7 consists of a closed core and windings. The primary winding of the transformer has few turns, is connected in a circuit of current to be measured in series, has more turns of the secondary winding, and is connected in series in a measuring instrument and a protection loop. The current transformer 7 has the functions of current transformation and electrical isolation, and is a sensor for acquiring current information of an electrical primary loop by secondary equipment such as a measuring instrument and relay protection in an electric power system, the current transformer 7 converts high current into low current in proportion, the primary side of the current transformer 7 is connected with a primary system, and the secondary side of the current transformer 7 is connected with the measuring instrument and the relay protection.
In this embodiment, this test bench still includes strapping table 8, and strapping table 8 is connected with multichannel power analyzer 4 for measure the electric energy. In this embodiment, the test bed further includes an acquisition terminal 9, and the acquisition terminal 9 is connected with the multi-channel power analyzer 4 and is used for acquiring electric quantity information. The shore power supply electric energy quality testing device collects data in real time at intervals of not less than 5 min/time.
In this embodiment, the test bed further includes a wideband voltage transformer 10 for measurement, and the wideband voltage transformer 10 for measurement is connected to the multi-channel power analyzer 4. When high-voltage shore power is generated, the metering broadband voltage transformer 10 is required to be used. The broadband voltage transformer 10 for measurement is a step-down transformer, which converts a high voltage into a low voltage with a certain value for measurement, and provides a voltage signal for measurement, measurement and protection equipment. The use of the broadband voltage transformer 10 for metering makes it possible to isolate high voltages from electrical workers. Although the broadband voltage transformer 10 for metering is also a device that operates on the principle of electromagnetic induction, its electromagnetic structure is just the reverse of that of the current transformer 7. The broadband voltage transformer 10 for metering is a special transformer of a limited construction and use.
In a word, the utility model discloses install power quality type monitor terminal at a plurality of check points, consequently the utility model discloses possess power quality multiple spot test ability.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A shore power supply electric energy quality testing device is characterized by comprising a test bed arranged in a power distribution room, the test bed comprises a power grid, a shore power conversion device, a ship-borne load, a multi-channel power analyzer, an industrial personal computer and an electric energy quality type monitoring terminal, the first end of the shore power conversion device is respectively connected with one end of the shipborne load and one channel of the multi-channel power analyzer, the second end of the shore power conversion device is respectively connected with one end of the power grid and the other channel of the multi-channel power analyzer, the third end of the shore power conversion device is connected with the other end of the shipborne load, the fourth end of the shore power conversion device is connected with the other end of the power grid, the industrial personal computer is connected with the multi-channel power analyzer, and the electric energy quality type monitoring terminal is connected with the multi-channel power analyzer; the system comprises a power distribution room, a shore power conversion device, a shipborne load and an electric energy quality type monitoring terminal, wherein detection points are arranged at the wire inlet positions of the power distribution room, detection points are arranged at all wire outlets in the power distribution room, detection points are arranged at the power supply and distribution positions of the shore power conversion device, detection points are arranged at the shipborne load, and the electric energy quality type monitoring terminal is arranged at the positions of.
2. The shore power supply power quality testing device of claim 1, wherein said power quality type monitoring terminal is a power efficiency monitoring V-type power quality type monitoring terminal.
3. The shore power source power quality testing apparatus of claim 2, wherein said test rig further comprises a current transformer, said current transformer being connected to said multichannel power analyzer.
4. The shore power source power quality testing apparatus of claim 3, wherein said test rig further comprises a meter, said meter being connected to said multichannel power analyzer.
5. The shore power source power quality testing apparatus of claim 4, wherein said test rig further comprises a collection terminal, said collection terminal being connected to said multi-channel power analyzer.
6. The shore power source power quality testing apparatus of claim 5, wherein said test rig further comprises a metering broadband voltage transformer, said metering broadband voltage transformer being connected to said multichannel power analyzer.
7. The shore power supply power quality testing apparatus according to any one of claims 1 to 6, wherein said multichannel power analyzer is provided with six channels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920544230.2U CN210294493U (en) | 2019-04-19 | 2019-04-19 | Shore power supply electric energy quality testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920544230.2U CN210294493U (en) | 2019-04-19 | 2019-04-19 | Shore power supply electric energy quality testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210294493U true CN210294493U (en) | 2020-04-10 |
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ID=70066936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920544230.2U Expired - Fee Related CN210294493U (en) | 2019-04-19 | 2019-04-19 | Shore power supply electric energy quality testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210294493U (en) |
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2019
- 2019-04-19 CN CN201920544230.2U patent/CN210294493U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200410 |