CN204166060U - A kind of 0.4kv low-voltage electric energy quality simulation test model device - Google Patents
A kind of 0.4kv low-voltage electric energy quality simulation test model device Download PDFInfo
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- CN204166060U CN204166060U CN201420569048.XU CN201420569048U CN204166060U CN 204166060 U CN204166060 U CN 204166060U CN 201420569048 U CN201420569048 U CN 201420569048U CN 204166060 U CN204166060 U CN 204166060U
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Abstract
The utility model discloses a kind of 0.4kv low-voltage electric energy quality simulation test model device, comprise switch board and be located at harmonic oscillator analogue means, harmonic-producing load analogue means and the compensation filter analogue means in switch board, described harmonic oscillator analogue means comprises harmonic oscillator and power supply, and power supply is made up of isolating transformer and current transformer; Described harmonic-producing load analogue means by connect with three-phase four-wire system wire and the sodium vapor lamp of various characteristic harmonics can be produced, blower fan, frequency converter, Switching Power Supply, intermediate frequency power supply form, and also includes the reserved switch of several outlets for subsequent use; Described compensation filter analogue means comprises several reactors of mutually connecting and forms capacitor in parallel with each reactor.By simulating the characteristic harmonics that various non-linear electrical equipment produces, characteristic harmonics is analyzed, the rule that research electric power quality interference source makes a difference simultaneously, and inquire into minor scale power net harmonic wave management method and energy-saving and cost-reducing method.
Description
Technical field
The utility model relates to the technical field of electric energy quality test and Treatment process, particularly relates to a kind of 0.4kv low-voltage electric energy quality simulation test model device with energy-saving and emission-reduction.
Background technology
At present, no matter these epoch are commercial production or resident living, have had higher requirement to power quality, and in addition, increasing non-linear electrical equipment also causes more pollution to electric energy, and the problem of the quality of power supply more and more comes into one's own in the industry.Current electric grid harmonic problem is the problem had the greatest impact to the quality of power supply, and harmonic wave is to grid equipment, and consumer has very large harm, also increases loss simultaneously.Harmonic wave in electrical network is mainly from power consumer end, and harmonic source is exactly non-linear electrical equipment.A lot of low-pressure system is equipped with compensation system at present, but does not possess the function of filtering.And most of quality of power supply interference source user, does not possess the technical conditions of harmonic wave control, need the assistance of relevant technical supervision department.
Summary of the invention
The purpose of this utility model is the shortcoming in order to overcome above-mentioned prior art, a kind of 0.4kv low-voltage electric energy quality simulation test model device is provided, the characteristic harmonics that this 0.4kv low-voltage electric energy quality simulation test model device is produced by the various non-linear electrical equipment of simulation, characteristic harmonics is analyzed simultaneously, the rule that research electric power quality interference source makes a difference, and inquire into minor scale power net harmonic wave management method and energy-saving and cost-reducing method.Key point is to assemble the harmonic oscillator of low pressure low capacity and the harmonic-producing load analogue means of low capacity, and the compensation filter analogue means of low capacity.By electric energy quality test analysis and the practice of harnessing of low pressure minor scale power net, for the harmonic problem of the electric system complexity of bulk power grid provides similar analytical approach and administering method.
The utility model solves the technical scheme that its technical matters adopts: a kind of 0.4kv low-voltage electric energy quality simulation test model device, comprise switch board and be located at harmonic oscillator analogue means, harmonic-producing load analogue means and the compensation filter analogue means in switch board, described harmonic oscillator analogue means comprises harmonic oscillator and power supply, power supply is 400/400 by voltage change ratio, and capacity is the isolating transformer of 20KVA, the current transformer composition in the installation of isolating transformer generators and loads side; Described harmonic-producing load analogue means by connect with three-phase four-wire system wire and the sodium vapor lamp of various characteristic harmonics can be produced, blower fan, frequency converter, Switching Power Supply, intermediate frequency power supply form, and also includes the reserved switch of several outlets for subsequent use; Described compensation filter analogue means comprises several reactors of mutually connecting and forms capacitor in parallel with each reactor.
This harmonic oscillator analogue means produces characteristic harmonics by equipment such as fairings, through test analysis, carries out the validity of filter apparatus adjustment or checking filter.
This harmonic-producing load analogue means is the harmonic-producing load combination of different harmonic nature, produces different harmonic waves, with actual load harmonic contrast, finds out the rule that actual load produces harmonic wave.
This compensation filter analogue means is the different load according to harmonic-producing load analogue means, drops into certain building-out capacitor, improves power factor, simultaneously according to the harmonic wave produced, configure certain reactor, form filter with electric capacity, reach the object of harmonic wave control.
Further, described isolating transformer adopts T1-isolating transformer.
Further, described reserved switch is the outlet switch being reserved with outlet for subsequent use, can be used for installing various harmonic source equipment additional temporarily
In sum, 0.4kv low-voltage electric energy quality simulation test model device of the present utility model adjustable harmonic oscillator analogue means produces and is analyzed to the similar harmonic wave of actual harmonic source; Drop into and have the harmonic-producing load analogue means of certain power, certain capacitor of arranging in pairs or groups compensates, then configures certain reactor and carry out filtering.Can as the test analysis instrument of electric energy quality test personnel; Characteristic harmonics is analyzed, the rule that research electric power quality interference source makes a difference simultaneously, and inquire into minor scale power net harmonic wave management method and energy-saving and cost-reducing method.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of a kind of 0.4kv low-voltage electric energy quality simulation test model device of the present utility model;
Fig. 2 is the circuit theory diagrams of a kind of 0.4kv low-voltage electric energy quality simulation test model device of the present utility model;
Fig. 3 is the front view of switch board of the present utility model;
Fig. 4 is the left view of switch board of the present utility model;
Fig. 5 is the rear view of switch board of the present utility model;
Fig. 6 is the stereographic map of switch board of the present utility model.
Embodiment
Embodiment 1
A kind of 0.4kv low-voltage electric energy quality simulation test model device described by the present embodiment 1, as shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, comprise switch board 1 and be located at harmonic oscillator analogue means 2, harmonic-producing load analogue means 3 and the compensation filter analogue means 4 in switch board, described harmonic oscillator analogue means comprises harmonic oscillator 5 and power supply 6, power supply is 400/400 by voltage change ratio, capacity be 20KVA isolating transformer 7, isolating transformer generators and loads side install current transformer 8 form; Described harmonic-producing load analogue means by connect with three-phase four-wire system wire and the sodium vapor lamp 9 of various characteristic harmonics can be produced, blower fan 10, frequency converter 11, Switching Power Supply 12, intermediate frequency power supply 13 form, and also includes the reserved switch 14 of several outlets for subsequent use; Described compensation filter analogue means comprises the reactor 15 of multiple mutual series connection and forms capacitor 16 in parallel with each reactor.
This harmonic oscillator analogue means produces characteristic harmonics by equipment such as fairings, through test analysis, carries out the validity of filter apparatus adjustment or checking filter.
This harmonic-producing load analogue means is the harmonic-producing load combination of different harmonic nature, produces different harmonic waves, with actual load harmonic contrast, finds out the rule that actual load produces harmonic wave.
This compensation filter analogue means is the different load according to harmonic-producing load analogue means, drops into certain building-out capacitor, improves power factor, simultaneously according to the harmonic wave produced, configure certain reactor, form filter with electric capacity, reach the object of harmonic wave control.
Further, described isolating transformer adopts T1-isolating transformer.
Further, described reserved switch is the outlet switch being reserved with outlet for subsequent use, can be used for installing various harmonic source equipment additional temporarily.
2,3,4,5,7 subharmonic generators are installed in switch board, the harmonic wave of injected system can be needed by switch board from main separation, the size of individual harmonic current can be regulated simultaneously.Switch board is also provided with the typical harmonic source equipment such as sodium vapor lamp, blower fan, frequency changer, Switching Power Supply, intermediate frequency power supply, can need to drop into different harmonic wave source devices according to research, also can install all kinds of different harmonic wave source device additional in switch board, and by switch board, switching be carried out to harmonic wave source device; After presetting the method for operation, by power quality analyzer, on-line analysis is carried out to the quality of power supply under this method of operation; By switch board, the switching pattern of adjustment shnt capacitor, each filtering channel, or the reactance Rate of adjustment shnt capacitor, attempt to make the quality of power supply under this fortune mode to reach optimal effectiveness.
The above is only preferred embodiment of the present utility model, not does any pro forma restriction to structure of the present utility model.Every above embodiment is done according to technical spirit of the present utility model any simple modification, equivalent variations and modification, all still belong in the scope of the technical solution of the utility model.
Claims (3)
1. a 0.4kv low-voltage electric energy quality simulation test model device, it is characterized in that, comprise switch board and be located at harmonic oscillator analogue means, harmonic-producing load analogue means and the compensation filter analogue means in switch board, described harmonic oscillator analogue means comprises harmonic oscillator and power supply, power supply is 400/400 by voltage change ratio, and capacity is the isolating transformer of 20KVA, the current transformer composition in the installation of isolating transformer generators and loads side; Described harmonic-producing load analogue means by connect with three-phase four-wire system wire and the sodium vapor lamp of various characteristic harmonics can be produced, blower fan, frequency converter, Switching Power Supply, intermediate frequency power supply form, and also includes the reserved switch of several outlets for subsequent use; Described compensation filter analogue means comprises several reactors of mutually connecting and forms capacitor in parallel with each reactor.
2. a kind of 0.4kv low-voltage electric energy quality simulation test model device according to claim 1, is characterized in that, described isolating transformer adopts T1-isolating transformer.
3. a kind of 0.4kv low-voltage electric energy quality simulation test model device according to claim 1, it is characterized in that, described reserved switch is the outlet switch being reserved with outlet for subsequent use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420569048.XU CN204166060U (en) | 2014-09-29 | 2014-09-29 | A kind of 0.4kv low-voltage electric energy quality simulation test model device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420569048.XU CN204166060U (en) | 2014-09-29 | 2014-09-29 | A kind of 0.4kv low-voltage electric energy quality simulation test model device |
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| CN204166060U true CN204166060U (en) | 2015-02-18 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104599595A (en) * | 2015-02-27 | 2015-05-06 | 广州供电局有限公司 | Harmonic suppression analog device and analog method thereof |
| CN105634285A (en) * | 2016-01-22 | 2016-06-01 | 宁波三星医疗电气股份有限公司 | Single-phase high frequency harmonic generation apparatus |
| CN108306293A (en) * | 2018-01-18 | 2018-07-20 | 浙江日业电力科技有限公司 | Low-voltage electric energy quality controlling device |
| CN112230094A (en) * | 2020-11-11 | 2021-01-15 | 广东电网有限责任公司 | Teaching device for simulating power quality |
-
2014
- 2014-09-29 CN CN201420569048.XU patent/CN204166060U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104599595A (en) * | 2015-02-27 | 2015-05-06 | 广州供电局有限公司 | Harmonic suppression analog device and analog method thereof |
| CN105634285A (en) * | 2016-01-22 | 2016-06-01 | 宁波三星医疗电气股份有限公司 | Single-phase high frequency harmonic generation apparatus |
| CN105634285B (en) * | 2016-01-22 | 2017-11-28 | 宁波三星医疗电气股份有限公司 | Single-phase high frequency harmonic wave generation device |
| CN108306293A (en) * | 2018-01-18 | 2018-07-20 | 浙江日业电力科技有限公司 | Low-voltage electric energy quality controlling device |
| CN112230094A (en) * | 2020-11-11 | 2021-01-15 | 广东电网有限责任公司 | Teaching device for simulating power quality |
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