CN204719085U - A kind of electric energy quality test device being applicable to underground coal mine low voltage electric network - Google Patents
A kind of electric energy quality test device being applicable to underground coal mine low voltage electric network Download PDFInfo
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- CN204719085U CN204719085U CN201520450654.4U CN201520450654U CN204719085U CN 204719085 U CN204719085 U CN 204719085U CN 201520450654 U CN201520450654 U CN 201520450654U CN 204719085 U CN204719085 U CN 204719085U
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Abstract
The utility model discloses a kind of electric energy quality test device being applicable to underground coal mine low voltage electric network, comprise and be separately positioned on flame-proof mine mutual inductor in an explosion-proof shell and mine flameproof and intrinsic safety type electric energy quality test instrument; Transformer is set up, by transformer for mine flameproof and intrinsic safety type electric energy quality test instrument provides 220V AC power at flame-proof mine mutual inductor; The three-phase voltage signal that flame-proof mine mutual inductor collects and three-phase current signal pass to mine flameproof and intrinsic safety type electric energy quality test instrument, and mine flameproof and intrinsic safety type electric energy quality test instrument carries out on-line monitoring according to three-phase voltage signal and three-phase current signal to the electrical network quality of power supply.In the utility model, mutual inductor, transformer and electric energy quality test instrument are arranged in explosion-proof casing, because explosion-proof casing has explosion prevention function, just can realize the object be applied to by electric energy quality test instrument in mining environment.
Description
Technical field
The utility model relates to a kind of electric energy quality test device being applicable to underground coal mine low voltage electric network, is particularly useful for underground coal mine 1140V and 660V low voltage electric network environment.
Background technology
Because electric system also exists some non-linear power loads, as various converter, converter plant etc., and load change there is randomness, and time have various fault to occur, make electric system be difficult to maintenance perfect condition, therefore just drawn power quality problem.The quality of power supply, once go wrong, gently then causes equipment failure, heavy then cause the damage of whole system, and the harm caused thus is very huge.
In order to avoid causing accident to occur because the quality of power supply worsens, ensureing the safe and reliable operation of electrical network, accurate test analysis and research must be carried out to the quality of power supply, formulate lift technique measure or the relevant institutions of power quality controlling accordingly.And accurate test analysis is carried out to the quality of power supply and research needs to rely on high-precision electric energy quality test instrument.The content measurement of electric energy quality test instrument mainly comprises the indexs such as voltage distortion, current distortion, voltage fluctuation and flickering, voltage deviation, non-equilibrium among three phase voltages, three-phase current unbalance degree, frequency shift (FS).
At present, common electric energy quality test instrument does not all possess explosion prevention function, at underground coal mine, particularly cannot cannot apply in high methane coal mine down-hole.
Utility model content
Goal of the invention: in order to overcome the deficiencies in the prior art, the utility model provides a kind of electric energy quality test device being applicable to underground coal mine low voltage electric network, be particularly useful for underground coal mine 1140V and 660V low voltage electric network environment, this electric energy quality test apparatus structure be compact, small volume, easy for installation, safe and reliable.
Technical scheme: for achieving the above object, the technical solution adopted in the utility model is:
A kind of electric energy quality test device being applicable to underground coal mine low voltage electric network, comprise flame-proof mine mutual inductor and mine flameproof and intrinsic safety type electric energy quality test instrument, flame-proof mine mutual inductor is arranged in mutual inductor explosion-proof shell, and mine flameproof and intrinsic safety type electric energy quality test instrument is arranged in electric energy quality test instrument explosion-proof shell; Flame-proof mine mutual inductor comprises voltage transformer (VT), current transformer and transformer three part, voltage transformer (VT) gathers electrical network bus three-phase voltage signal, current transformer gathers electrical network bus three-phase current signal, by transformer for mine flameproof and intrinsic safety type electric energy quality test instrument provides 220V AC power; The three-phase voltage signal that flame-proof mine mutual inductor collects and three-phase current signal pass to mine flameproof and intrinsic safety type electric energy quality test instrument, and mine flameproof and intrinsic safety type electric energy quality test instrument carries out on-line monitoring according to three-phase voltage signal and three-phase current signal to the electrical network quality of power supply.
Preferably, described mutual inductor explosion-proof shell is provided with entrance bell and outlet wire speaker mouth, down-hole 1140V or 660V low voltage electric network three-phase bus first from entrance bell access, then lead to low-voltage feeder switch from outlet wire speaker mouth; Described voltage transformer (VT) summation current transformer is 1140V and 660V dual-purpose type, outputs signal and is drawn from outlet wire speaker mouth by explosion-proof wire; The former limit of described transformer is 1140V and 660V dual-purpose type, and the exportable 220V AC power of secondary, is outputed signal and drawn from outlet wire speaker mouth by explosion-proof wire.
Preferably, described mine flameproof and intrinsic safety type electric energy quality test instrument possesses liquid crystal display, and electric energy quality test instrument explosion-proof shell is provided with the button operated mine flameproof and intrinsic safety type electric energy quality test instrument; Mine flameproof and intrinsic safety type electric energy quality test instrument at least provides 1 road RS485 intrinsic safety signal to export and a road non-peace RJ45 network interface; By these communication interfaces, this electric energy quality test device can be made can to connect with background manage software, thus realize the function such as real time on-line monitoring and historical data file, inquiry of the quality of power supply.
Beneficial effect: the electric energy quality test device of what the utility model provided be applicable to underground coal mine low voltage electric network, mutual inductor, transformer and electric energy quality test instrument are arranged in explosion-proof casing, the object be applied to by electric energy quality test instrument in mining environment can be realized, be applicable to underground coal mine 1140V and 660V low voltage electric network, apparatus structure is compact, small volume, easy for installation, safe and reliable.
Accompanying drawing explanation
Fig. 1 is one-piece construction schematic diagram of the present utility model;
Fig. 2 is the internal circuit schematic diagram of flame-proof mine mutual inductor;
Fig. 3 is the internal circuit schematic diagram of mine flameproof and intrinsic safety type electric energy quality test instrument.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
Be illustrated in figure 1 a kind of electric energy quality test device being applicable to underground coal mine low voltage electric network, comprise flame-proof mine mutual inductor and mine flameproof and intrinsic safety type electric energy quality test instrument, flame-proof mine mutual inductor is arranged in mutual inductor explosion-proof shell, and mine flameproof and intrinsic safety type electric energy quality test instrument is arranged in electric energy quality test instrument explosion-proof shell; Flame-proof mine mutual inductor comprises voltage transformer (VT), current transformer and transformer three part, voltage transformer (VT) gathers electrical network bus three-phase voltage signal, current transformer gathers electrical network bus three-phase current signal, by transformer for mine flameproof and intrinsic safety type electric energy quality test instrument provides 220V AC power; The three-phase voltage signal that flame-proof mine mutual inductor collects and three-phase current signal pass to mine flameproof and intrinsic safety type electric energy quality test instrument, and mine flameproof and intrinsic safety type electric energy quality test instrument carries out on-line monitoring according to three-phase voltage signal and three-phase current signal to the electrical network quality of power supply.
As shown in Figure 2, described mutual inductor explosion-proof shell is provided with entrance bell and outlet wire speaker mouth, down-hole 1140V or 660V low voltage electric network three-phase bus first from entrance bell access, then lead to low-voltage feeder switch from outlet wire speaker mouth; Described voltage transformer (VT) summation current transformer is 1140V and 660V dual-purpose type, outputs signal and is drawn from outlet wire speaker mouth by explosion-proof wire; The former limit of described transformer is 1140V and 660V dual-purpose type, and the exportable 220V AC power of secondary, is outputed signal and drawn from outlet wire speaker mouth by explosion-proof wire.
As shown in Figure 3, described mine flameproof and intrinsic safety type electric energy quality test instrument possesses liquid crystal display, and electric energy quality test instrument explosion-proof shell is provided with the button operated mine flameproof and intrinsic safety type electric energy quality test instrument; Mine flameproof and intrinsic safety type electric energy quality test instrument at least provides 1 road RSS485 intrinsic safety signal to export and a road non-peace RJ45 network interface; By these communication interfaces, this electric energy quality test device can be made can to connect with background manage software, thus realize the function such as real time on-line monitoring and historical data file, inquiry of the quality of power supply.
The above is only preferred implementation of the present utility model; be noted that for those skilled in the art; under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (3)
1. one kind is applicable to the electric energy quality test device of underground coal mine low voltage electric network, it is characterized in that: comprise flame-proof mine mutual inductor and mine flameproof and intrinsic safety type electric energy quality test instrument, flame-proof mine mutual inductor is arranged in mutual inductor explosion-proof shell, and mine flameproof and intrinsic safety type electric energy quality test instrument is arranged in electric energy quality test instrument explosion-proof shell; Flame-proof mine mutual inductor comprises voltage transformer (VT), current transformer and transformer three part, voltage transformer (VT) gathers electrical network bus three-phase voltage signal, current transformer gathers electrical network bus three-phase current signal, by transformer for mine flameproof and intrinsic safety type electric energy quality test instrument provides 220V AC power; The three-phase voltage signal that flame-proof mine mutual inductor collects and three-phase current signal pass to mine flameproof and intrinsic safety type electric energy quality test instrument, and mine flameproof and intrinsic safety type electric energy quality test instrument carries out on-line monitoring according to three-phase voltage signal and three-phase current signal to the electrical network quality of power supply.
2. the electric energy quality test device being applicable to underground coal mine low voltage electric network according to claim 1, it is characterized in that: described mutual inductor explosion-proof shell is provided with entrance bell and outlet wire speaker mouth, down-hole 1140V or 660V low voltage electric network three-phase bus first from entrance bell access, then lead to low-voltage feeder switch from outlet wire speaker mouth; Described voltage transformer (VT) summation current transformer is 1140V and 660V dual-purpose type, outputs signal and is drawn from outlet wire speaker mouth by explosion-proof wire; The former limit of described transformer is 1140V and 660V dual-purpose type, and the exportable 220V AC power of secondary, is outputed signal and drawn from outlet wire speaker mouth by explosion-proof wire.
3. the electric energy quality test device being applicable to underground coal mine low voltage electric network according to claim 1, it is characterized in that: described mine flameproof and intrinsic safety type electric energy quality test instrument possesses liquid crystal display, and electric energy quality test instrument explosion-proof shell is provided with the button operated mine flameproof and intrinsic safety type electric energy quality test instrument; Mine flameproof and intrinsic safety type electric energy quality test instrument at least provides 1 road RS485 intrinsic safety signal to export and a road non-peace RJ45 network interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520450654.4U CN204719085U (en) | 2015-06-26 | 2015-06-26 | A kind of electric energy quality test device being applicable to underground coal mine low voltage electric network |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520450654.4U CN204719085U (en) | 2015-06-26 | 2015-06-26 | A kind of electric energy quality test device being applicable to underground coal mine low voltage electric network |
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|---|---|
| CN204719085U true CN204719085U (en) | 2015-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520450654.4U Expired - Fee Related CN204719085U (en) | 2015-06-26 | 2015-06-26 | A kind of electric energy quality test device being applicable to underground coal mine low voltage electric network |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111289821A (en) * | 2020-02-28 | 2020-06-16 | 兖州东方机电有限公司 | Coal mine underground power supply system electric energy quality monitoring device |
| CN111707894A (en) * | 2020-06-19 | 2020-09-25 | 中国煤炭科工集团太原研究院有限公司 | Mining electric energy quality on-line measuring system |
| CN113949951A (en) * | 2021-10-14 | 2022-01-18 | 鄂尔多斯市华兴能源有限责任公司 | Application of mining explosion-proof heating belt in coal bunker displacement |
-
2015
- 2015-06-26 CN CN201520450654.4U patent/CN204719085U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111289821A (en) * | 2020-02-28 | 2020-06-16 | 兖州东方机电有限公司 | Coal mine underground power supply system electric energy quality monitoring device |
| CN111707894A (en) * | 2020-06-19 | 2020-09-25 | 中国煤炭科工集团太原研究院有限公司 | Mining electric energy quality on-line measuring system |
| CN113949951A (en) * | 2021-10-14 | 2022-01-18 | 鄂尔多斯市华兴能源有限责任公司 | Application of mining explosion-proof heating belt in coal bunker displacement |
| CN113949951B (en) * | 2021-10-14 | 2024-04-02 | 鄂尔多斯市华兴能源有限责任公司 | Method for inhibiting acoustic wave distortion received by coal bin level instrument |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151021 Termination date: 20210626 |
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| CF01 | Termination of patent right due to non-payment of annual fee |