CN203191536U - Voltage monitor comparison apparatus - Google Patents
Voltage monitor comparison apparatus Download PDFInfo
- Publication number
- CN203191536U CN203191536U CN 201220734218 CN201220734218U CN203191536U CN 203191536 U CN203191536 U CN 203191536U CN 201220734218 CN201220734218 CN 201220734218 CN 201220734218 U CN201220734218 U CN 201220734218U CN 203191536 U CN203191536 U CN 203191536U
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- Prior art keywords
- voltage
- monitoring instrument
- voltage monitoring
- input end
- comparison device
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- 238000012544 monitoring process Methods 0.000 claims description 70
- 239000004020 conductor Substances 0.000 claims description 10
- 238000005259 measurement Methods 0.000 claims description 10
- 238000012423 maintenance Methods 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 3
- 238000007689 inspection Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 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
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 239000009137 wuling Substances 0.000 description 1
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Abstract
Disclosed in the utility model is a voltage monitor comparison apparatus that comprises a voltage monitor and a junction box. 220-V, 100-V and 380-V voltage input terminal interfaces are arranged in the junction box; a transformer is arranged between the junction box and the voltage monitor. And the 220-V, 100-V and 380-V voltage input terminal interfaces are connected with a common resistance wire at one end of the transformer. With utilization of the scheme, power supplies with different voltage levels can be provided during the running and maintenance process of the voltage monitor and thus reliably and secure power supplies can be provided for repairing and operation maintenance of the voltage monitor. Therefore, the provided apparatus has the good technological merit.
Description
Technical field
The utility model relates to voltage monitoring instrument operation maintenance work, and this device is mainly used in voltage monitoring instrument and safeguard detects and to provide power supply and voltage measurement, time numeric ratio right.
Background technology
Electrical network economy, safety, stable operation need voltage quality monitoring, and all transformer stations and typical representative of consumer are all installed voltage monitoring instrument, and the 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 (100V and 380V output terminal are arranged) that connects the 220V working power, with the clock time of carrying out situation is set and compares, it is right to measure numeric ratio with voltage table (multimeter).But because of the miniature transformer poor safety performance of 220V working power, no cabinet shell.
The voltage monitoring instrument comparison device is a lot of on the market, but price is higher.
Company's electrical network installation voltage monitoring instrument quantity is many, voltage monitoring instrument working power and measurement input end also connect, and voltage monitoring instrument has three kinds of (100V, 220V, 380V) different electric pressures, and has only the power supply of supplying with rated voltage, and voltage monitoring instrument could operate as normal.
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 unusually, again by oneself the time, taking maintenance department of company to after can voltage monitoring instrument being removed by the walkaround inspection personnel detects, general office space has only the 220V AC power, and the voltage monitoring instrument that runs into 100V and 380V can not detect.Because the voltage monitoring instrument power supply is merged into two hole connection terminals with measuring input end, if the voltage monitoring instrument of 100V inserts the 220V AC power, voltage also may burn voltage monitoring instrument with too high.If the voltage monitoring instrument of 380V inserts the 220V AC power, voltage will be low excessively, and voltage monitoring instrument can not be worked at all.
Therefore, be sought after detection power supply and a comparison device that different electric pressures such as 100V, 220V, 380V can be provided.
The utility model content
Technical problem to be solved in the utility model provides a kind of voltage monitoring measuring device, and this pick-up unit can provide the detection of different electric pressures such as 100V, 220V, 380V, and guarantees the operate as normal of voltage monitoring instrument.
It is as follows that the utility model solves the problems of the technologies described above the technical scheme of taking:
A kind of voltage monitoring instrument comparison device, comprise voltage monitoring instrument and terminal box, wherein, be provided with 220V, 100V, 380V voltage input end interface in this terminal box, and, also be provided with transformer between described terminal box and the voltage monitoring instrument, described 220V, 100V, 380V voltage input end interface are connected with an end common resistance line of transformer.
Further, preferred construction 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 switch, behind switch, be connected to an end common resistance line of described transformer again respectively.
Further, preferred construction is, described switch is selected the two-way toggle switch, described interchange 100V, 380V voltage input end interface insert the same road of two-way toggle switch respectively and intermediate contact disconnects and arbitrary contact of closure, and the end common resistance line access same road of switch of described transformer and intermediate contact disconnect and other closed contact.
Further, preferred construction is, described voltage monitoring instrument opposite side is provided with two resistive conductors, and wherein, first resistive conductor connects the voltage monitoring instrument operating voltage, is respectively-15V and 15V voltage; Second resistive conductor connects the display screen working power, is respectively 0V and 9V voltage.
Further, preferred construction is also be provided with in the described terminal box and connect the measuring-signal input port of measuring ammeter, and it also to be connected to the measurement input end of described voltage monitoring instrument by lead.
The utility model has been taked after the such scheme, and 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 provides reliable, safe power supply.
Other features and advantages of the utility model will be set forth in the following description, and, partly from instructions, become apparent, perhaps understand by implementing the utility model.The purpose of this utility model and other advantages can realize and obtain by specifically noted structure in the instructions of writing, claims and accompanying drawing.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described in detail, so that above-mentioned advantage of the present utility model is clearer and more definite.
Fig. 1 is the principle schematic of the utility model voltage monitoring instrument comparison device;
Fig. 2 is the use view of the utility model voltage monitoring instrument comparison device.
Embodiment
Below in conjunction with specific embodiment the utility model 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 miniature transformer, switch, and the soft copper lead of 1mm2 of 220V, 100V, three kinds of voltage input end interfaces of 380V.This device is used for voltage monitoring instrument test detection provides power supply and measures numeric ratio right.
As shown in Figure 1, described voltage monitoring instrument comparison device, comprise voltage monitoring instrument and terminal box, wherein, be provided with 220V, 100V, 380V voltage input end interface in this terminal box, and, transformer B1 also be provided with between described terminal box and the voltage monitoring instrument, described 220V, 100V, 380V voltage input end interface be connected with the end common resistance line of transformer B1 (in an embodiment, B1 is the transformer with 220V, 100V, three 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 connection 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 between a described end resistive conductor of the voltage input end interface of described 100V, 380V and transformer, be provided with switch ZK.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 switch, behind switch, be connected to an end common resistance line of described transformer respectively.
Wherein, among the preferred embodiment, described voltage monitoring instrument opposite side is provided with two resistive conductors, and wherein, first resistive conductor connects the voltage monitoring instrument operating voltage, is respectively-15V and 15V voltage; Second resistive conductor connects the display screen working power, be respectively 0V and 9V voltage, and, be provided with in the described terminal box and connect the contact 101 (it is as measuring the test pencil wiring hole) of measuring ammeter, and it also is connected to the measurement input end 201 (it is as the measuring-signal line socket) of described voltage monitoring instrument by lead.
Wherein, in an embodiment, the operation instruction of described voltage monitoring instrument monitoring device is as follows:
(1) insert the 220V AC power, this device has output the power supply of 100V, 220V, three kinds of electric pressures of 380V.
(2) voltage monitoring instrument to be detected is inserted this device output end binding post, 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 voltage monitoring instrument to be checked.
When (6) detecting the 220V voltage monitoring instrument, voltage monitoring instrument is detected power supply and comparison device to be measured input end with lead and working power end and connects, comparison device and voltage monitoring instrument to be measured insert in the 220V supply socket simultaneously, and can detect and measurement data comparison inspection.
When (7) detecting the 100V voltage monitoring instrument, voltage monitoring instrument is detected power supply and comparison device to be measured input end with lead and output terminal and connects, voltage monitoring instrument working power to be measured is measured input end insert comparison device and output terminal, switch on the comparison device is beaten the direction to 100V, comparison device working power plug cord is inserted in the 220V supply socket.And can detect and measurement data comparison inspection.
When (8) detecting the 380V voltage monitoring instrument, voltage monitoring instrument is detected power supply and comparison device to be measured input end with lead and output terminal and connects, voltage monitoring instrument working power to be measured is measured input end insert comparison device and output terminal, switch on the comparison device is beaten the direction to 380V, comparison device working power plug cord is inserted in the 220V supply socket.And can detect and measurement data comparison inspection, the synoptic diagram of its wiring is with reference to shown in Figure 2.
When (9) detecting the comparison 10kV of transformer station busbar voltage monitor, voltage monitoring instrument is detected power supply and comparison device to be measured input end with lead and output terminal and connects, to be connected with voltage monitoring instrument working power end to be detected at the comparison device output terminal, to install switch beats to 100V, insert device 220V attaching plug, the no-load voltage ratio of comparison device is set at 10000/100=100, and upper and lower bound is by the standard setting, and also can detect comparison voltage monitoring instrument to be detected this moment.Carry out the matching measurement data recording by hand.
The utility model has been taked after the such scheme, it can provide the power supply of different electric pressure in voltage monitoring instrument operation maintenance process, carry out the comparison of voltage measurement and clock numerical value simultaneously, for maintenance, the operation maintenance of voltage monitoring instrument provides reliable, safe power supply.
It should be noted that at last: the above only is preferred embodiment of the present utility model, be not limited to the utility model, although with reference to previous embodiment the utility model is had been described in detail, for a person skilled in the art, it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (5)
1. voltage monitoring instrument comparison device, it is characterized in that, comprise voltage monitoring instrument and terminal box, wherein, be provided with 220V, 100V, 380V voltage input end interface in this terminal box, and, also being provided with transformer between described terminal box and the voltage monitoring instrument, described 220V, 100V, 380V voltage input end interface are connected with an end common resistance line of transformer.
2. voltage monitoring instrument comparison device according to claim 1, it is characterized in that, 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, be provided with switch, behind switch, be connected to an end common resistance line of described transformer again respectively.
3. voltage monitoring instrument comparison device according to claim 2, it is characterized in that, described switch is selected the two-way toggle switch, described interchange 100V, 380V voltage input end interface insert the same road of two-way toggle switch respectively and intermediate contact disconnects and arbitrary contact of closure, and the end common resistance line access same road of switch of described transformer and intermediate contact disconnect and other closed contact.
4. voltage monitoring instrument comparison device according to claim 1 and 2 is characterized in that, described voltage monitoring instrument opposite side is provided with two resistive conductors, and wherein, first resistive conductor connects the voltage monitoring instrument operating voltage, is respectively-15V and 15V voltage; Second resistive conductor connects the display screen working power, is respectively 0V and 9V voltage.
5. voltage monitoring instrument comparison device according to claim 1 is characterized in that, also be provided with in the described terminal box to connect the measuring-signal input port of measuring ammeter, and it also is connected to the measurement input end of described voltage monitoring instrument by lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220734218 CN203191536U (en) | 2012-12-27 | 2012-12-27 | Voltage monitor comparison apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220734218 CN203191536U (en) | 2012-12-27 | 2012-12-27 | Voltage monitor comparison apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203191536U true CN203191536U (en) | 2013-09-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220734218 Expired - Fee Related CN203191536U (en) | 2012-12-27 | 2012-12-27 | Voltage monitor comparison apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203191536U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103293502A (en) * | 2012-12-27 | 2013-09-11 | 国家电网公司 | Voltage monitor comparison device |
| CN109085402A (en) * | 2018-08-30 | 2018-12-25 | 中国电力科学研究院有限公司 | The multifunctional combined terminal box of electrical energy measurement |
-
2012
- 2012-12-27 CN CN 201220734218 patent/CN203191536U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103293502A (en) * | 2012-12-27 | 2013-09-11 | 国家电网公司 | Voltage monitor comparison device |
| CN103293502B (en) * | 2012-12-27 | 2016-05-25 | 国家电网公司 | A kind of voltage monitoring instrument comparison device |
| CN109085402A (en) * | 2018-08-30 | 2018-12-25 | 中国电力科学研究院有限公司 | The multifunctional combined terminal box of electrical energy measurement |
| CN109085402B (en) * | 2018-08-30 | 2021-08-06 | 中国电力科学研究院有限公司 | Multifunctional combined junction box for electric energy metering |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20130911 Termination date: 20181227 |