CN103293502B - A kind of voltage monitoring instrument comparison device - Google Patents
A kind of voltage monitoring instrument comparison device Download PDFInfo
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- CN103293502B CN103293502B CN201210575541.8A CN201210575541A CN103293502B CN 103293502 B CN103293502 B CN 103293502B CN 201210575541 A CN201210575541 A CN 201210575541A CN 103293502 B CN103293502 B CN 103293502B
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- monitoring instrument
- voltage
- voltage monitoring
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- end interface
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 73
- 238000005259 measurement Methods 0.000 claims description 14
- 239000004020 conductor Substances 0.000 claims description 10
- 238000012423 maintenance Methods 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 3
- 238000007689 inspection Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 239000009137 wuling Substances 0.000 description 1
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- Measurement Of Current Or Voltage (AREA)
Abstract
The invention discloses a kind of voltage monitoring instrument comparison device, comprise voltage monitoring instrument and terminal box, wherein, in this terminal box, be provided with 220V, 100V, 380V voltage input end interface, and, between described terminal box and voltage monitoring instrument, be also provided with transformer, described 220V, 100V, 380V voltage input end interface are connected with one end common resistance line of transformer. After the present invention has taked such scheme, the power supply that it can provide different electric pressure in voltage monitoring instrument operation maintenance process, for maintenance, the operation maintenance of voltage monitoring instrument provide reliable, safe power supply, has good technological merit.
Description
Technical field
The present invention relates to voltage monitoring instrument operation maintenance work, this device is mainly used in voltage monitoring instrument and safeguards to detect power supply and voltage measurement, time numeric ratio pair are provided.
Background technology
Electrical network economy, safety, stable operation, need voltage quality monitoring, and all transformer stations and Typical Representative are with installing per family voltage monitoring instrument, and voltage monitoring instrument long-play easily breaks down. Therefore power supply enterprise is sought after voltage monitoring instrument and detects power supply and comparison device. Generally provide power supply with a miniature transformer (having 100V and 380V output) that connects 220V working power, carry out set of time situation with clock and compare, measure numeric ratio pair with voltmeter (universal meter). But because of the miniature transformer poor safety performance of 220V working power, without casing.
On market, voltage monitoring instrument comparison device is a lot, but price is higher.
Company's electrical network installation voltage monitoring instrument quantity is many, voltage monitoring instrument working power and measurement input also connect, and voltage monitoring instrument has three kinds of (100V, 220V, 380V) different electric pressures, and only have the power supply of supplying with rated voltage, voltage monitoring instrument could normal work.
Enshi City is located in Wuling mountain area, part voltage monitoring instrument installation site from maintenance department of company away from, when finding voltage monitoring instrument, on-the-spot walkaround inspection personnel occur extremely, again by oneself time, after can voltage monitoring instrument being removed by walkaround inspection personnel, taking maintenance department of company to detects, general office space only has 220V AC power, and the voltage monitoring instrument that runs into 100V and 380V can not detect. Because voltage monitoring instrument power supply is merged into two hole binding posts with measuring input, if the voltage monitoring instrument of 100V access 220V AC power, voltage, by too high, also may burn voltage monitoring instrument. If the voltage monitoring instrument of 380V access 220V AC power, voltage is by too low, and voltage monitoring instrument can not be worked at all.
Therefore, be sought after detection power supply and a comparison device that the different electric pressures such as 100V, 220V, 380V can be provided.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of voltage monitoring measuring device, and this checkout gear can provide the detection of the different electric pressures such as 100V, 220V, 380V, and ensures the normal work of voltage monitoring instrument.
It is as follows that the present invention solves the problems of the technologies described above taked technical scheme:
A kind of voltage monitoring instrument comparison device, comprise voltage monitoring instrument and terminal box, wherein, in this terminal box, be provided with 220V, 100V, 380V voltage input end interface, and, between described terminal box and voltage monitoring instrument, be also provided with transformer, described 220V, 100V, 380V voltage input end interface are connected with one end common resistance line of transformer.
Further, preferred structure is, the voltage input end interface of described 100V, 380V shares a voltage input end interface, and between the voltage input end interface of described 100V, 380V and zero line, be provided with change-over switch, after change-over switch, be connected to respectively again one end common resistance line of described transformer.
Further, preferred structure is, described change-over switch is selected two-way toggle switch, described interchange 100V, 380V voltage input end interface access respectively the same road of two-way toggle switch and intermediate contact disconnects and arbitrary contact of closure, and the common resistance line access same road of change-over switch, one end of described transformer and intermediate contact disconnect and other closed contact.
Further, preferably structure is, described voltage monitoring instrument opposite side is provided with two resistive conductors, and wherein, the first resistive conductor connects voltage monitoring instrument operating voltage, be respectively-15V and 15V voltage; The second resistive conductor connects display screen working power, is respectively 0V and 9V voltage.
Further, preferred structure is in described terminal box, be also provided with and connect the measuring-signal input port of measuring ammeter, and it to be also connected to the measurement input of described voltage monitoring instrument by wire.
After the present invention has taked such scheme, it can provide the power supply of different electric pressure in voltage monitoring instrument operation maintenance process, for maintenance, the operation maintenance of voltage monitoring instrument provide reliable, safe power supply.
Other features and advantages of the present invention will be set forth in the following description, and, partly from description, become apparent, or understand by implementing the present invention. Object of the present invention and other advantages can be realized and be obtained by specifically noted structure in write description, claims and accompanying drawing.
Brief description of the drawings
Below in conjunction with accompanying drawing, the present invention is described in detail, to make above-mentioned advantage of the present invention clearer and more definite.
Fig. 1 is the principle schematic of voltage monitoring instrument comparison device of the present invention;
Fig. 2 is the use view of voltage monitoring instrument comparison device of the present invention.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in detail.
Technical solution of the present invention is the same model voltage monitoring instrument that adopts electrical network to install, and has the soft copper wire of miniature transformer, change-over switch and the 1mm2 of 220V, 100V, tri-kinds of voltage input end interfaces of 380V. This device detects and power supply is provided and measures numeric ratio pair for voltage monitoring instrument test.
As shown in Figure 1, described voltage monitoring instrument comparison device, comprise voltage monitoring instrument and terminal box, wherein, in this terminal box, be provided with 220V, 100V, 380V voltage input end interface, and, transformer B1 between described terminal box and voltage monitoring instrument, be also provided with, described 220V, 100V, 380V voltage input end interface be connected with one end common resistance line of transformer B1 (in an embodiment, B1 is the transformer with 220V, 100V, tri-kinds of voltage input end interfaces of 380V).
Wherein, in an embodiment, the voltage input end interface of described 100V, 380V shares two taps 102 and 103 of a voltage input end interface, and these two taps 102 and 103 are respectively as 100V, 380V Voltage-output wiring hole and zero line (N) output connection hole.
Wherein, the voltage input end interface of described 220V uses tap 104 and 105 respectively as power input 220V wiring hole and power input zero line (N) wiring hole.
And be provided with change-over switch ZK between the voltage input end interface of described 100V, 380V and described one end resistive conductor of transformer. Specifically, the voltage input end interface of described 100V, 380V shares two taps, and between the voltage input end interface of described 100V, 380V and zero line, be provided with change-over switch, after change-over switch, be connected to respectively one end common resistance line of described transformer.
Wherein, in preferred embodiment, described voltage monitoring instrument opposite side is provided with two resistive conductors, and wherein, the first resistive conductor connects voltage monitoring instrument operating voltage, be respectively-15V and 15V voltage; The second resistive conductor connects display screen working power, be respectively 0V and 9V voltage, and, in described terminal box, be provided with and connect the contact 101 (it is as measuring test pencil wiring hole) of measuring ammeter, and it is also connected to the measurement input 201 (it is as measuring-signal line socket) of described voltage monitoring instrument by wire.
Wherein, in an embodiment, the operation instruction of described voltage monitoring instrument monitoring device is as follows:
(1) access 220V AC power, this device has output the power supply of 100V, 220V, tri-kinds of electric pressures of 380V.
(2) voltage monitoring instrument to be detected is accessed to this device output end binding post, change-over switch is beaten to the gear consistent with voltage monitoring instrument rated voltage to be detected. And can detect voltage monitoring instrument to be checked to this device energising.
(3) check that all wiring are correct.
(4) check that switch positions is correct.
(5) this device energising is detected to voltage monitoring instrument to be checked.
(6) while detecting 220V voltage monitoring instrument, voltage monitoring instrument is detected to power supply and comparison device measurement input wire and working power end and connects, comparison device and voltage monitoring instrument to be measured insert in 220V supply socket simultaneously, and can detect and measurement data comparison inspection.
(7) while detecting 100V voltage monitoring instrument, voltage monitoring instrument is detected to power supply and comparison device measurement input wire and output and connects, voltage monitoring instrument working power to be measured is measured to input access comparison device and output, switch on comparison device is beaten to the direction to 100V, comparison device working power plug cord is inserted in 220V supply socket. And can detect and measurement data comparison inspection.
(8) while detecting 380V voltage monitoring instrument, voltage monitoring instrument is detected to power supply and comparison device measurement input wire and output and connects, voltage monitoring instrument working power to be measured is measured to input access comparison device and output, switch on comparison device is beaten to the direction to 380V, comparison device working power plug cord is inserted in 220V supply socket. And can detect and measurement data comparison inspection, the schematic diagram of its wiring is with reference to shown in Fig. 2.
(9) while detecting the comparison 10kV of transformer station busbar voltage monitor, voltage monitoring instrument is detected to power supply and comparison device measurement input wire and output and connects, to be connected with voltage monitoring instrument working power end to be detected at comparison device output, to install change-over switch beats to 100V, insertion apparatus 220V attaching plug, the no-load voltage ratio of comparison device is set as to 10000/100=100, and upper and lower bound is pressed standard configuration, now also can detect comparison voltage monitoring instrument to be detected. Carry out by hand matching measurement data record.
After the present invention has taked such scheme, it can provide the power supply of different electric pressure in voltage monitoring instrument operation maintenance process, carry out voltage measurement and the comparison of clock numerical value, for maintenance, the operation maintenance of voltage monitoring instrument provide reliable, safe power supply simultaneously.
Finally it should be noted that: the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although the present invention is had been described in detail with reference to previous embodiment, for a person skilled in the art, its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement. Within the spirit and principles in the present invention all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (3)
1. a voltage monitoring instrument comparison device, it is characterized in that, comprise voltage monitoring instrument and terminal box, wherein, in this terminal box, be provided with 220V voltage input end interface, 100V voltage input end interface, 380V voltage input end interface, and, between described terminal box and voltage monitoring instrument, being also provided with transformer, described 220V voltage input end interface, 100V voltage input end interface, 380V voltage input end interface are connected with one end common resistance line of transformer; Described 100V voltage input end interface, 380V voltage input end interface share a voltage input end interface, and between one end common resistance line of described 100V voltage input end interface, 380V voltage input end interface and described transformer, be provided with two-way toggle switch, described 100V voltage input end interface, 380V voltage input end interface are connected to one end common resistance line of described transformer through two-way toggle switch.
2. voltage monitoring instrument comparison device according to claim 1, is characterized in that, the other end of described transformer is provided with two resistive conductors, and wherein, the first resistive conductor connects voltage monitoring instrument operating voltage, be respectively-15V and 15V voltage; The second resistive conductor connects display screen working power, is respectively 0V and 9V voltage.
3. voltage monitoring instrument comparison device according to claim 1, it is characterized in that, in described terminal box, be also provided with and connect the measuring-signal input port of measuring ammeter, and measuring-signal input port is also connected to the measurement input of described voltage monitoring instrument by wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210575541.8A CN103293502B (en) | 2012-12-27 | 2012-12-27 | A kind of voltage monitoring instrument comparison device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210575541.8A CN103293502B (en) | 2012-12-27 | 2012-12-27 | A kind of voltage monitoring instrument comparison device |
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| Publication Number | Publication Date |
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| CN103293502A CN103293502A (en) | 2013-09-11 |
| CN103293502B true CN103293502B (en) | 2016-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210575541.8A Active CN103293502B (en) | 2012-12-27 | 2012-12-27 | A kind of voltage monitoring instrument comparison device |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116436159B (en) * | 2023-03-24 | 2024-05-17 | 江苏泽宇智能电力股份有限公司 | Remote online inspection system with auxiliary monitoring function for transformer substation |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85205567U (en) * | 1985-12-28 | 1986-09-17 | 姚永源 | Train contravariant main power being able to lower voltage |
| CN201600444U (en) * | 2010-01-04 | 2010-10-06 | 山东电力研究院 | Voltage monitor intelligent verification platform |
| CN202282738U (en) * | 2011-09-20 | 2012-06-20 | 江苏省电力公司宿迁供电公司 | Special debugging power supply device for potable voltage measuring monitor |
| CN202533572U (en) * | 2012-05-17 | 2012-11-14 | 衢州电力局 | Calibrating device for voltage monitoring apparatuses |
| CN203191536U (en) * | 2012-12-27 | 2013-09-11 | 国家电网公司 | Voltage monitor comparison apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000193698A (en) * | 1998-12-25 | 2000-07-14 | Mitsubishi Electric Corp | Testing device for current detector |
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- 2012-12-27 CN CN201210575541.8A patent/CN103293502B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85205567U (en) * | 1985-12-28 | 1986-09-17 | 姚永源 | Train contravariant main power being able to lower voltage |
| CN201600444U (en) * | 2010-01-04 | 2010-10-06 | 山东电力研究院 | Voltage monitor intelligent verification platform |
| CN202282738U (en) * | 2011-09-20 | 2012-06-20 | 江苏省电力公司宿迁供电公司 | Special debugging power supply device for potable voltage measuring monitor |
| CN202533572U (en) * | 2012-05-17 | 2012-11-14 | 衢州电力局 | Calibrating device for voltage monitoring apparatuses |
| CN203191536U (en) * | 2012-12-27 | 2013-09-11 | 国家电网公司 | Voltage monitor comparison apparatus |
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| CN103293502A (en) | 2013-09-11 |
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