CN112365777A - Analog simulation device for electrified display signal source of switch cabinet - Google Patents
Analog simulation device for electrified display signal source of switch cabinet Download PDFInfo
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- CN112365777A CN112365777A CN202011207017.6A CN202011207017A CN112365777A CN 112365777 A CN112365777 A CN 112365777A CN 202011207017 A CN202011207017 A CN 202011207017A CN 112365777 A CN112365777 A CN 112365777A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/18—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism
- G09B23/188—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism for motors; for generators; for power supplies; for power distribution
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/24—Circuit arrangements for boards or switchyards
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
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Abstract
The invention discloses a switch cabinet electrified display signal source analog simulation device, which comprises a first isolation transformer, a power amplifier, a second isolation transformer, output switching and voltage and current sampling, wherein an AC220V power supply is connected to the first isolation transformer through a switch and a fuse, the first isolation transformer outputs four paths of voltages, namely an AC220V/0.5A, DC110V/1A, a power amplifier power supply and a working power supply, the AC220V/0.5A and the DC110V/1A supply power to a electrified indicator, the power amplifier power supply supplies positive and negative voltages for the power amplifier, the working power supply is an internal control power supply, and the power amplifier adjusts a high-stable 50Hz signal through a high-precision multi-turn potentiometer to output 0-120V voltage; the voltage of 0-120V is output to three paths of same voltage through the second isolation transformer, the voltage of 0-30V/0.65A or 0-250V/0.08A is selected by the three paths of same voltage through output switching, and the three paths of same voltage are output after passing through the voltage and current sampling loop.
Description
Technical Field
The invention relates to the field of power simulation, in particular to a switch cabinet electrified display signal source analog simulation device.
Background
At present, in the prior art, two single-phase voltage regulators and a direct-current power supply are utilized, and one voltage regulator is manually regulated to output a trigger signal to an indicator, so that the indicator is triggered to trigger live indication. The other voltage regulator or the direct current power supply outputs specified voltage to supply power to the indicator.
The most approximate device in the past is two sets of comparatively single voltage regulator control sources and direct current power supplies, only single-phase continuous adjustable output, and voltage regulator manual output is difficult to accurately reach the set voltage value, is single-phase in addition, is difficult to satisfy the demand that diversified signal indicator supplied power and signal triggered on the market. The work is complicated, a plurality of devices are required to be matched for use on the site, and the ideal effect is difficult to achieve.
Disclosure of Invention
The invention aims to provide a switch cabinet electrified display signal source analog simulation device, which mainly simplifies complex problems, enables coarse equipment to be high in precision and enables huge equipment to be portable. On-site portable equipment has high-precision, pure and fixed alternating current and direct current voltage output, and the safe and stable work of the equipment is ensured. And the device also has a high-precision adjustable pure sine wave power supply, the level from millivolt to volt is continuously adjustable, high-light output can be ensured, and the device has high-precision voltmeter for real-time display. The safety teaching device thoroughly solves the problems of work display of the charged indicator and safety teaching from design to five-prevention, and provides favorable guarantee for safe operation of a power grid and standard operation of workers.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the switch cabinet electrified display signal source analog simulation device comprises a first isolation transformer, a power amplifier, a second isolation transformer, output switching and voltage current sampling, wherein an AC220V power supply passes through a switch and a fuse to the first isolation transformer, the first isolation transformer outputs four paths of voltage, namely an AC220V/0.5A, DC110V/1A, a power amplifier power supply and a working power supply, the AC220V/0.5A and the DC110V/1A supply power to a electrified indicator, the power amplifier power supply supplies positive and negative voltage for the power amplifier, the working power supply is an internal control power supply, and the power amplifier adjusts a high-stability 50Hz signal through a high-precision multi-turn potentiometer to output 0-120V voltage; the voltage of 0-120V is output to three paths of same voltage through the second isolation transformer, the voltage of 0-30V/0.65A or 0-250V/0.08A is selected by the three paths of same voltage through output switching, and the three paths of same voltage are output after passing through the voltage and current sampling loop.
The display device further comprises a CPU board, wherein the CPU board is responsible for screen display, interface operation, output switching and three-way voltage and current display.
Further, the high-voltage charge display device is a BDXN3S type induction type high-voltage charge display device, and the starting voltage is lightened at the same time of the 130-165V locking indication.
Furthermore, the high-voltage live display device is a DXN-Q indoor high-voltage live display device, the starting voltage is about 20V, and the locking indication is turned on when the locking indication reaches more than 90V.
Further, the high-voltage live display device is a DXN-Q indoor high-voltage live display device, and the starting voltage is locked and indicated at about 65V and is simultaneously lightened.
Compared with the prior art, the invention has at least one of the following advantages:
determining input signal starting voltage (or current) of electrified display devices of different switch cabinets, and inquiring or testing the input signal starting voltage (or current); determining various charged display input signal source development schemes, including signal source design, signal source external power supply scheme, installation scheme and the like; signal source debugging, whole debugging of electrified display and the whole joint debugging of cubical switchboard. The invention can effectively simulate the operation voltage of the high-voltage side of the equipment, so that the operation and state display of the switch cabinet are consistent with the production field, the practical operation integrity and immersion are improved, the contradiction between training safety and real training is solved, the achievement can be put into practical training field equipment, the contradiction between training safety and training authenticity is effectively solved, and the synchronous improvement of the training safety consciousness and the production safety consciousness is facilitated.
Drawings
Fig. 1 is a schematic structural diagram of an analog simulation apparatus for a switch cabinet live-line display signal source according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying fig. 1 and the detailed description. The advantages and features of the present invention will become more apparent from the following description. It is to be noted that the drawings are in a very simplified form and are all used in a non-precise scale for the purpose of facilitating and distinctly aiding in the description of the embodiments of the present invention. To make the objects, features and advantages of the present invention comprehensible, reference is made to the accompanying drawings. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the implementation conditions of the present invention, so that the present invention has no technical significance, and any structural modification, ratio relationship change or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprise," "include," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, switchgear, live display signal source analog simulation apparatus, article, or field device that comprises a list of elements includes not only those elements, but also other elements not expressly listed, or also elements inherent to such process, switchgear, live display signal source analog simulation apparatus, article, or field device. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of additional like elements in the process, the switchgear live display signal source analog simulation apparatus, the article, or the field device in which the element is included.
Referring to fig. 1, the analog simulation apparatus for a signal source of a switch cabinet with a live display provided in this embodiment includes a first isolation transformer, a power amplifier, a second isolation transformer, an output switch and a voltage and current sample, wherein an AC220V power supply is connected to the first isolation transformer through a switch and a fuse, the first isolation transformer outputs four paths of voltages, which are respectively an AC220V/0.5A, DC110V/1A, a power amplifier power supply and a working power supply, the AC220V/0.5A and the DC110V/1A supply power to a live indicator, the power amplifier power supply supplies positive and negative voltages for the power amplifier, the working power supply is an internal control power supply, and the power amplifier adjusts a high-stable 50Hz signal through a high-precision multi-turn potentiometer to output 0-120V voltages; the voltage of 0-120V is output to three paths of same voltage through the second isolation transformer, the voltage of 0-30V/0.65A or 0-250V/0.08A is selected by the three paths of same voltage through output switching, and the three paths of same voltage are output after passing through the voltage and current sampling loop.
In this embodiment, the display device further includes a CPU board, and the CPU board is responsible for screen display, interface operation, output switching, and three-way voltage and current display.
In this embodiment, the high-voltage charge display device is a BDXN3S type induction type high-voltage charge display device, and the start voltage is simultaneously lit at the 130-165V latching indication.
In this embodiment, the high-voltage live display device is a DXN-Q indoor high-voltage live display device, the starting voltage is about 20V, and the locking indication is turned on when the locking indication reaches more than 90V.
In this embodiment, the high-voltage live display device is a DXN-Q indoor high-voltage live display device, and the start voltage is simultaneously on for the locking indication at about 65V.
The AC220V power supply passes through the switch and the fuse to the first isolation transformer, the first isolation transformer outputs 4 paths of voltage which are respectively AC220V/0.5A and DC110V/1A, and the two groups of voltage supply power for the charged indicator; the power amplifier power supply is positive and negative voltage for supplying power to the power amplifier; the working power supply is an internal control use power supply; the CPU board is responsible for screen display, interface operation, output switching and three-way voltage and current display; the power amplifier is used for regulating and amplifying a high-stability 50HZ signal through a high-precision multi-turn potentiometer to output 0-120V voltage; the 0-120V voltage outputs three paths of same voltage through the second isolation transformer, the 0-30V/0.65A or 0-250V/0.08A voltage is selected through output switching, and the voltage is output after passing through the voltage and current sampling loop.
These are the gate voltages of several high voltage live display devices: the BDXN3S type induction type high-voltage live display device (Fuzhou Bofeng intelligent electrical appliances Co., Ltd.) starts the voltage to be on at the same time of the 130-165V locking indication; the DXN-Q type indoor high-voltage live display device (the first switching factory in Fuzhou, China) has the starting voltage of about 20V, and the locking indication is turned on when the locking indication reaches more than 90V; DXN-Q type indoor high-voltage live display device (Xiamen Li Lin high-voltage electric Co., Ltd.) with starting voltage of about 65V for indicating locking and simultaneously lighting
Referring to fig. 1, the panel is respectively an ac220V/0.5A output, a dc110V/1A output, and a three-way high-precision ac continuously variable voltage output from the left to the right, and the effective value ranges are: 0-30V/0.65A or 0-250V/0.08A. An isolation transformer is arranged in the power supply, and the display screen displays and outputs trigger voltage and current in real time. The output precision of the alternating voltage is +/-0.5 percent.
The auxiliary power supply is set, the required power supply DC110V or AC220V is selected as required, and a red output button on the auxiliary power supply is pressed, so that a set value is output on an output terminal of the auxiliary power supply.
The main power supply is set, a required power supply is selected to be 0-30V or 0-250V according to the requirement, a red output button on the main power supply is pressed, a set value is output on a main power supply output terminal, and the main power supply output terminal is adjusted through an adjustable knob.
While the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be taken as limiting the invention. Various modifications and alterations to this invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be determined from the following claims.
Claims (5)
1. The switch cabinet electrified display signal source analog simulation device is characterized by comprising a first isolation transformer, a power amplifier, a second isolation transformer, output switching and voltage and current sampling, wherein an AC220V power supply passes through a switch and a fuse to the first isolation transformer, the first isolation transformer outputs four paths of voltages, namely an AC220V/0.5A, DC110V/1A, a power amplifier power supply and a working power supply, the AC220V/0.5A and the DC110V/1A supply power to a electrified indicator, the power amplifier power supply supplies positive and negative voltages for the power amplifier, the working power supply is an internal control use power supply, and the power amplifier adjusts a high-stable 50Hz signal through a high-precision multi-turn potentiometer to output 0-120V voltage; the voltage of 0-120V is output to three paths of same voltage through the second isolation transformer, the voltage of 0-30V/0.65A or 0-250V/0.08A is selected by the three paths of same voltage through output switching, and the three paths of same voltage are output after passing through the voltage and current sampling loop.
2. The switch cabinet live-wire display signal source analog simulation device according to claim 1, further comprising a CPU board, wherein the CPU board is responsible for screen display, interface operation, output switching, and three-way voltage-current display.
3. The signal source simulation device for the live-wire display of the switch cabinet as claimed in claim 1, wherein the high voltage live-wire display device is a BDXN3S type inductive high voltage live-wire display device, and the start voltage is simultaneously on at the 130-165V lock indication.
4. The switch cabinet live-wire display signal source analog simulation device of claim 1, wherein the high-voltage live-wire display device is a DXN-Q indoor high-voltage live-wire display device, the starting voltage is about 20V, and the locking indication is turned on when the locking indication is more than 90V.
5. The analog simulation device of the switch cabinet live-wire display signal source of claim 1, wherein the high-voltage live-wire display device is a DXN-Q indoor high-voltage live-wire display device, and the starting voltage is simultaneously on for indicating the locking at about 65V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011207017.6A CN112365777A (en) | 2020-11-03 | 2020-11-03 | Analog simulation device for electrified display signal source of switch cabinet |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011207017.6A CN112365777A (en) | 2020-11-03 | 2020-11-03 | Analog simulation device for electrified display signal source of switch cabinet |
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| CN112365777A true CN112365777A (en) | 2021-02-12 |
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| CN202011207017.6A Pending CN112365777A (en) | 2020-11-03 | 2020-11-03 | Analog simulation device for electrified display signal source of switch cabinet |
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Citations (6)
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| CN202870285U (en) * | 2012-06-26 | 2013-04-10 | 中国西电电气股份有限公司 | A portable simulation detection device of high-voltage live display apparatuses |
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| CN105741653A (en) * | 2016-04-29 | 2016-07-06 | 山东平安电气设备有限公司 | Transformation and distribution room simulation controller |
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| CN207457485U (en) * | 2017-11-20 | 2018-06-05 | 广西电网有限责任公司柳州供电局 | High-tension switch cabinet electrification display verifying attachment |
| CN109361169A (en) * | 2018-12-21 | 2019-02-19 | 益和电气集团股份有限公司 | A kind of switch cabinet status comprehensive indicator and state indication method |
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2020
- 2020-11-03 CN CN202011207017.6A patent/CN112365777A/en active Pending
Patent Citations (6)
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| CN202870285U (en) * | 2012-06-26 | 2013-04-10 | 中国西电电气股份有限公司 | A portable simulation detection device of high-voltage live display apparatuses |
| CN105278592A (en) * | 2015-11-12 | 2016-01-27 | 国网辽宁省电力有限公司朝阳供电公司 | Intelligent transformer substation state networked monitoring system |
| CN105741653A (en) * | 2016-04-29 | 2016-07-06 | 山东平安电气设备有限公司 | Transformation and distribution room simulation controller |
| CN106935089A (en) * | 2017-04-14 | 2017-07-07 | 辽宁双宜电力电子有限公司 | Power information acquisition terminal installation training system and method |
| CN207457485U (en) * | 2017-11-20 | 2018-06-05 | 广西电网有限责任公司柳州供电局 | High-tension switch cabinet electrification display verifying attachment |
| CN109361169A (en) * | 2018-12-21 | 2019-02-19 | 益和电气集团股份有限公司 | A kind of switch cabinet status comprehensive indicator and state indication method |
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Application publication date: 20210212 |