CN203871688U - Arc-extinguishing resonance-eliminating cabinet - Google Patents
Arc-extinguishing resonance-eliminating cabinet Download PDFInfo
- Publication number
- CN203871688U CN203871688U CN201420282321.0U CN201420282321U CN203871688U CN 203871688 U CN203871688 U CN 203871688U CN 201420282321 U CN201420282321 U CN 201420282321U CN 203871688 U CN203871688 U CN 203871688U
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- Prior art keywords
- arc
- cabinet
- eliminating
- extinguishing harmonic
- eliminating cabinet
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- 238000002955 isolation Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 238000009413 insulation Methods 0.000 abstract description 3
- 230000001012 protector Effects 0.000 abstract 1
- 230000001264 neutralization Effects 0.000 description 5
- 239000007787 solid Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000001681 protective Effects 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Abstract
The utility model relates to an arc-extinguishing resonance-eliminating cabinet which comprises a cabinet body and a control room. The arc-extinguishing resonance-eliminating cabinet is characterized in that the arc-extinguishing resonance-eliminating cabinet also comprises a controller, a wall bushing, a nameplate, a display window, a signboard, an ampere meter, a main bus-bar, a support insulation wire, an illuminating device, a high-voltage isolator switch, a PT safety switch, an operating mechanism, an overvoltage protector, a voltage transformer PT, an ampere meter, an electromagnetic lock, a cabinet top bus-bar, a secondary meter room, a knocking mechanism, a current-limiting fuse, a vacuum contactor, a serial communication interface, an EEPROM and a network interface which are arranged on the cabinet body. The controller judges the fault category and phase category of the arc-extinguishing resonance-eliminating cabinet according to the signals provided by the voltage transformer PT, sends a fault signal to the control room or to an upper computer through the upper computer, and when arc grounding happens, sends an action command to the vacuum contactor immediately so as to cut off the vacuum contactor. The arc-extinguishing resonance-eliminating cabinet is capable of rapidly switching on and saving installation space; and the cabinet is simple in structure and convenient to install, and is capable of preventing the accident from further worsening, thereby reducing the workload of operation maintenance personnel.
Description
Technical field
The utility model relates to arc-extinguishing harmonic-eliminating technical field, more particularly, relates to a kind of arc-extinguishing harmonic-eliminating cabinet.
Background technology
Arc-extinguishing harmonic-eliminating cabinet is microcomputer arc extinguishing resonance eliminating wire-selection and overvoltage protection; it is the electric power system through high resistance ground for 3-35KV isolated neutral, neutral by arc extinction coil grounding or neutral point in power industry; can all kinds of overvoltage in system be limited, effectively improved system safety in operation and power supply reliability.
Along with the development of present electrical network, it is a kind of inexorable trend that overhead transmission line is progressively replaced by the cable line of solid insulation.The build-up effect puncturing due to solid insulation, its internal overvoltage, the arc grounding overvoltage particularly producing during electrical network generation single-phase intermittent arc earthing and the ferro-resonance over-voltage exciting thus, become one of this class electric power netting safe running and threatened greatly, wherein serious with single-phase arc grounding overvoltage.It is saturated that arc grounding overvoltage can make voltage transformer occur, and excites ferro resonance, causes voltage transformer seriously to transship, and causes fuse blows or instrument transformer to burn.Because the arc grounding overvoltage duration is long, energy very easily surpasses the ability to bear of lightning arrester, causes Explosion of on Arrester simultaneously.The accumulation destruction that the overvoltage of the high amplitude that arc grounding produces has besides been aggravated the solid insulations such as cable even punctures and blows out.
In prior art, easily produce series resonance over-voltage and illusory grounding phenomenon; Amplified the transmission overvoltage of high voltage side of transformer to low-pressure side; Make the line selection device for low current sensitivity even cannot route selection; While going to offset capacitance current with inductive current, the high fdrequency component part during for arc grounding cannot be offset, thereby can not effectively limit arc light grounding surge; And arc-extinguishing harmonic-eliminating cabinet fault cannot be remembered inconvenient problem analysis, can not accomplish to learn from past mistakes to avoid future ones, the mistake of making before can not effectively avoiding, that accomplishes puts mistake.
Therefore, prior art urgently has greatly improved.
Utility model content
The technical problems to be solved in the utility model is, above-mentioned defect for prior art, a kind of arc-extinguishing harmonic-eliminating cabinet is provided, comprise: cabinet and control room, also comprise: be located at controller, wall bushing, nameplate, display window, Sign Board, ammeter, main bus bar, pillar insulated wire, lighting device, high voltage isolator, PT discharge cock, operating mechanism, overvoltage protection device, voltage transformer pt, ammeter, electromagnetic lock, cabinet top bus, secondary meter chamber, knocking gear, current limiting fuse, vacuum contactor on described cabinet; Serial communication interface, EEPROM; Network interface; The signal that described controller provides according to voltage transformer pt, judge the fault category of described arc-extinguishing harmonic-eliminating cabinet and separate, to described control room or by described serial communication interface, to host computer, send fault-signal, when there is arc grounding, to described vacuum contactor, send action command immediately, cut off described vacuum contactor.
In arc-extinguishing harmonic-eliminating cabinet described in the utility model, described network interface is for sending the fault category of described arc-extinguishing harmonic-eliminating cabinet and separate by wired network to host computer.
In arc-extinguishing harmonic-eliminating cabinet described in the utility model, described arc-extinguishing harmonic-eliminating cabinet also comprises wireless module, for sending the fault category of described arc-extinguishing harmonic-eliminating cabinet and separate by wireless network to host computer.
In arc-extinguishing harmonic-eliminating cabinet described in the utility model, described EEPROM is for storing the fault category of described arc-extinguishing harmonic-eliminating cabinet and separate, and is connected with described controller by iic bus mode.
In arc-extinguishing harmonic-eliminating cabinet described in the utility model, described fault-free classification is PT broken string, metal ground connection, arc grounding.
In arc-extinguishing harmonic-eliminating cabinet described in the utility model, described high voltage isolator is used for putting into operation and exiting of control device, when device needs maintenance or debugging, with isolation of system and form obvious cut-off point.
In arc-extinguishing harmonic-eliminating cabinet described in the utility model, described voltage transformer pt is used to described arc-extinguishing harmonic-eliminating cabinet that voltage signal is provided.
In arc-extinguishing harmonic-eliminating cabinet described in the utility model, described vacuum contactor for completing immediately feed motion after the action command of receiving controller (1).
In arc-extinguishing harmonic-eliminating cabinet described in the utility model, described overvoltage protection device is for the level in apparatus insulated permission by various overvoltage Limiting relatively and between phase and phase.
Implement arc-extinguishing harmonic-eliminating cabinet of the present utility model, there is following beneficial effect: when there is arc grounding, the vacuum contactor of device internal fault phase can rapid closing, arc grounding is converted into metallic earthing and not only makes the electric arc of fault point extinguish immediately, also thoroughly eliminated arc grounding overvoltage simultaneously; This device has higher cost performance, can replace arc suppression coil and corollary equipment thereof, voltage transformer cabinet and protective device thereof and Small Electric Current Earthing And Routing Device, saves on-the-spot installing space; The defencive function of this device is not subject to the impact of electrical network size and operational mode; Apparatus structure is simple, easy for installation, is applicable to the with power system with neutral point nondirectly grounding of confession, electricity consumption enterprise; Defencive function is complete, and device has arc eliminator, PT function and inner and outside all kinds of over-voltage protection function; According to user's on-the-spot needs, can also increase the functions such as PT switching, small current line selection, the further expansion to Accident prevention, the workload that alleviates operation maintenance personnel is significant.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the front view of the first embodiment of the utility model arc-extinguishing harmonic-eliminating cabinet;
Fig. 2 is the left view of the first embodiment of the utility model arc-extinguishing harmonic-eliminating cabinet.
Embodiment
Referring to Fig. 1, is the front view of the first embodiment of the utility model arc-extinguishing harmonic-eliminating cabinet.Referring to Fig. 1, is the front view of the first embodiment of the utility model arc-extinguishing harmonic-eliminating cabinet.Referring to Fig. 2, is the left view of the first embodiment of the utility model arc-extinguishing harmonic-eliminating cabinet.As Fig. 1, shown in Fig. 2, in the arc-extinguishing harmonic-eliminating cabinet providing at the utility model the first embodiment, at least comprise, cabinet and control room, it is characterized in that, described arc-extinguishing harmonic-eliminating cabinet also comprises: be located at the controller 1 on described cabinet, wall bushing 2, nameplate 3, display window 4, Sign Board 5, ammeter 6, main bus bar 7, pillar insulated wire 8, lighting device 9, high voltage isolator 10, PT discharge cock 11, operating mechanism 12, overvoltage protection device 13, voltage transformer pt 14, ammeter 15, electromagnetic lock 16, cabinet top bus 17, secondary meter chamber 18, knocking gear 19, current limiting fuse 20, vacuum contactor 21, serial communication interface 22, EEPROM23, network interface 24, the signal that described controller 1 provides according to voltage transformer pt 14, judge the fault category of described arc-extinguishing harmonic-eliminating cabinet and separate, to described control room or by described serial communication interface 22, to host computer, send fault-signal, when there is arc grounding, to described vacuum contactor 21, send action command immediately, cut off described vacuum contactor 21.
Described network interface 24 is for sending the fault category of described arc-extinguishing harmonic-eliminating cabinet and separate by wired network to host computer.
Described arc-extinguishing harmonic-eliminating cabinet also comprises wireless module, for sending the fault category of described arc-extinguishing harmonic-eliminating cabinet and separate by wireless network to host computer.
Described EEPROM23 is for storing the fault category of described arc-extinguishing harmonic-eliminating cabinet and separate, and is connected with described controller 1 by iic bus mode.
Described fault-free classification is PT broken string, metal ground connection, arc grounding.
Described high voltage isolator 10 is used for putting into operation and exiting of control device, when device needs maintenance or debugging, with isolation of system and form obvious cut-off point.
Described voltage transformer pt is used to described arc-extinguishing harmonic-eliminating cabinet that voltage signal is provided.
Described vacuum contactor 21 completes feed motion after for the action command receiving controller 1 immediately.
Described overvoltage protection device 13 is for the level in apparatus insulated permission by various overvoltage Limiting relatively and between phase and phase.
The utility model is by the design of above the first embodiment, can accomplish when there is arc grounding, the vacuum contactor of device internal fault phase can rapid closing, arc grounding is converted into metallic earthing and not only makes the electric arc of fault point extinguish immediately, also thoroughly eliminated arc grounding overvoltage simultaneously; This device has higher cost performance, can replace arc suppression coil and corollary equipment thereof, voltage transformer cabinet and protective device thereof and Small Electric Current Earthing And Routing Device, saves on-the-spot installing space; The defencive function of this device is not subject to the impact of electrical network size and operational mode; Apparatus structure is simple, easy for installation, is applicable to the with power system with neutral point nondirectly grounding of confession, electricity consumption enterprise; Defencive function is complete, and device has arc eliminator, PT function and inner and outside all kinds of over-voltage protection function; According to user's on-the-spot needs, can also increase the functions such as PT switching, small current line selection, the further expansion to Accident prevention, the workload that alleviates operation maintenance personnel is significant.
The utility model is described according to specific embodiment, but it will be understood by those skilled in the art that when not departing from the utility model scope, can carry out various variations and be equal to replacement.In addition,, for adapting to the specific occasion of the utility model technology, can carry out many modifications and not depart from its protection range the utility model.Therefore, the utility model is not limited to specific embodiment disclosed herein, and comprises all embodiment that drop into claim protection range.
Claims (9)
1. an arc-extinguishing harmonic-eliminating cabinet, comprise: cabinet and control room, it is characterized in that, described arc-extinguishing harmonic-eliminating cabinet also comprises: be located at the controller (1) on described cabinet, wall bushing (2), nameplate (3), display window (4), Sign Board (5), ammeter (6), main bus bar (7), pillar insulated wire (8), lighting device (9), high voltage isolator (10), PT discharge cock (11), operating mechanism (12), overvoltage protection device (13), voltage transformer pt (14), ammeter (15), electromagnetic lock (16), cabinet top bus (17), secondary meter chamber (18), knocking gear (19), current limiting fuse (20), vacuum contactor (21), serial communication interface (22), EEPROM (23), network interface (24), the signal that described controller (1) provides according to voltage transformer pt (14), judge the fault category of described arc-extinguishing harmonic-eliminating cabinet and separate, to described control room or by described serial communication interface (22), to host computer, send fault-signal, when there is arc grounding, to described vacuum contactor (21), send action command immediately, cut off described vacuum contactor (21).
2. arc-extinguishing harmonic-eliminating cabinet according to claim 1, is characterized in that, described network interface (24) is for sending the fault category of described arc-extinguishing harmonic-eliminating cabinet and separate by wired network to host computer.
3. arc-extinguishing harmonic-eliminating cabinet according to claim 1, is characterized in that, described arc-extinguishing harmonic-eliminating cabinet also comprises wireless module, for sending the fault category of described arc-extinguishing harmonic-eliminating cabinet and separate by wireless network to host computer.
4. arc-extinguishing harmonic-eliminating cabinet according to claim 2, is characterized in that, described EEPROM (23) is for storing the fault category of described arc-extinguishing harmonic-eliminating cabinet and separate, and is connected with described controller (1) by iic bus mode.
5. according to the arc-extinguishing harmonic-eliminating cabinet described in any one in claim 1-4, it is characterized in that, described fault-free classification is PT broken string, metal ground connection, arc grounding.
6. arc-extinguishing harmonic-eliminating cabinet according to claim 5, is characterized in that, described high voltage isolator (10) is used for putting into operation and exiting of control device, when device needs maintenance or debugging, with isolation of system and form obvious cut-off point.
7. arc-extinguishing harmonic-eliminating cabinet according to claim 6, is characterized in that, described voltage transformer pt is used to described arc-extinguishing harmonic-eliminating cabinet that voltage signal is provided.
8. arc-extinguishing harmonic-eliminating cabinet according to claim 7, is characterized in that, described vacuum contactor (21) completes feed motion after for the action command receiving controller (1) immediately.
9. arc-extinguishing harmonic-eliminating cabinet according to claim 8, is characterized in that, described overvoltage protection device (13) is for the level in apparatus insulated permission by various overvoltage Limiting relatively and between phase and phase.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420282321.0U CN203871688U (en) | 2014-05-29 | 2014-05-29 | Arc-extinguishing resonance-eliminating cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420282321.0U CN203871688U (en) | 2014-05-29 | 2014-05-29 | Arc-extinguishing resonance-eliminating cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203871688U true CN203871688U (en) | 2014-10-08 |
Family
ID=51652611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420282321.0U Expired - Fee Related CN203871688U (en) | 2014-05-29 | 2014-05-29 | Arc-extinguishing resonance-eliminating cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203871688U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109361158A (en) * | 2018-09-19 | 2019-02-19 | 南京钢铁股份有限公司 | A kind of electrical equipment mounting process |
| CN111555138A (en) * | 2020-05-27 | 2020-08-18 | 朱立怀 | Outdoor power distribution cabinet with severe impact circuit disconnection function |
-
2014
- 2014-05-29 CN CN201420282321.0U patent/CN203871688U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109361158A (en) * | 2018-09-19 | 2019-02-19 | 南京钢铁股份有限公司 | A kind of electrical equipment mounting process |
| CN109361158B (en) * | 2018-09-19 | 2020-12-18 | 南京钢铁股份有限公司 | Electrical equipment installation process |
| CN111555138A (en) * | 2020-05-27 | 2020-08-18 | 朱立怀 | Outdoor power distribution cabinet with severe impact circuit disconnection function |
| CN111555138B (en) * | 2020-05-27 | 2021-11-16 | 威海汇通电力设备股份有限公司 | Outdoor power distribution cabinet with severe impact circuit disconnection function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171012 Address after: Hou Village, Mao Qi Town, Haicheng City, Liaoning Patentee after: Liaoning Liaoning Electric Automation Technology Co., Ltd. Address before: Happiness Road 325000 Yueqing City, Zhejiang province Yuecheng Town, No. 29-31 Co-patentee before: Huang Jianmin Patentee before: Gao Xiaodong |
|
| 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: 20141008 Termination date: 20210529 |