CN2613915Y - Intelligent comprehensive protector with programmable control and interface display for high/low voltage distribution switch - Google Patents
Intelligent comprehensive protector with programmable control and interface display for high/low voltage distribution switch Download PDFInfo
- Publication number
- CN2613915Y CN2613915Y CN 03216740 CN03216740U CN2613915Y CN 2613915 Y CN2613915 Y CN 2613915Y CN 03216740 CN03216740 CN 03216740 CN 03216740 U CN03216740 U CN 03216740U CN 2613915 Y CN2613915 Y CN 2613915Y
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- China
- Prior art keywords
- distribution switch
- programmable controller
- voltage distribution
- voltage
- low voltage
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- Expired - Lifetime
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- 230000001012 protector Effects 0.000 title claims abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000005065 mining Methods 0.000 abstract 1
- 238000005070 sampling Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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Abstract
The utility model relates to an intelligent comprehensive protector with programmable control and interface display for a mining flame-proof high/low voltage distribution switch, which is composed of an industrial programmable controller (28), a man-machine screen (30), etc., wherein the man-machine screen (30) is connected with the industrial programmable controller (28) which is connected with a voltage-current transformer and a breaker of the high/low voltage distribution switch. The utility model collects current and voltage signals and monitors the breaker to realize protection. Thus, the utility model has the characteristics of simple structure, stable performance, reliable operation, convenient arrangement and maintenance, etc., and provides a reliable intelligent comprehensive protector for the high/low voltage distribution switch.
Description
One, technical field
The utility model is a kind of control able to programme and interface display high and low voltage electric distribution switch intelligent type comprehensive protector that is used for the high and low pressure panel switches of flame-proof mine.
Two, background technology
High pressure, the comprehensive protection device in the low-voltage distribution switch of China's flame-proof mine mainly are the electron type comprehensive protection devices at present; because of its complex structure, electric elements mass discrepancy big; cause unstable properties; operational reliability is relatively poor; seriously influence the normal operation of panel switches, and the installation and maintenance inconvenience.
Three, summary of the invention
The purpose of this utility model is that installation and maintenance are the intelligent type comprehensive protector easily for flame-proof mine high and low pressure panel switches provide a kind of simple in structure, stable performance, reliable.
For reaching above-mentioned purpose, the technical scheme of taking is: the utility model is made up of industrial programmable controller (being PLC), man-machine screen (being GOT) etc.Man-machine screen connects with industrial programmable controller.The industry programmable controller is fixed on the inboard, flameproof cabinet Qianmen of high and low pressure panel switches.The signals collecting end of industry programmable controller connects with voltage, the current transformer of high and low pressure panel switches, to gather voltage, current signal.The operation button of industry programmable controller is installed on the flameproof cabinet of high and low pressure cooperation switch.The output control terminal of industry programmable controller connects with the circuit breaker of high and low pressure panel switches, the monitoring circuit-breaker switching on-off.
Its operation principle is: the voltage of instrument transformer secondary output is as the working power of the utility model and circuit breaker.After the isolating switch of high and low pressure panel switches closed a floodgate, industrial programmable controller at first carried out self check to whole panel switches system, and the self check situation shows by man-machine screen, can put into operation after the panel switches system is normal.After the operation of high and low pressure panel switches; the industry programmable controller is monitored in real time voltage, electric current, the opening and closing state of panel switches by the signals collecting of electric current, voltage transformer and is shown; the fault that the overload of panel switches system, short circuit, the phase failure, overvoltage, fault such as under-voltage and transformer opposite side panel switches feedback are come; the industry programmable controller is according to giving the various logic relation of setting earlier; the output control and protection signal is given performance element, the driving circuit breaker opens circuit, thereby realizes protection.
Four, description of drawings
Fig. 1 is the utility model schematic diagram;
Fig. 2 is the utility model conspectus.
Among the figure: 1, man-machine interface 2, voltage shows 3, electric current shows 4, insulation shows 5, parameter setting 6, overload test button 7, reset button 8, short circuit test button 9, electric switch-on button 10, breaker open operation output 11, electronic opening button 12, current sampling 13, A phase current mutual inductor 14, current sampling 15, B phase current mutual inductor 16, current sampling 17, C phase current mutual inductor 18, voltage sampling 19, voltage transformer 28, industry programmable controller 29, flameproof cabinet 30, man-machine screen
Five, embodiment
The utility model is made up of industrial programmable controller (to call PLC in the following text) 28, man-machine screen (to call GOT in the following text) 30 etc.GOT30 connects with PLC28's, and the utility model is fixed in the Qianmen of flameproof cabinet 29 of high and low pressure panel switches, and the LCD of GOT30 is facing to the display window of flameproof cabinet 29 front door panel.Each operation task button of PLC28 is installed on the flameproof cabinet front door panel.The signals collecting end of PLC28 (A/D CHO) connects (see figure 2) with voltage, the current transformer of high and low pressure panel switches.The output control terminal of PLC (OUT 1/0) connects with the circuit breaker of high and low pressure panel switches.
Its operation principle, the voltage of voltage transformer (PT) secondary output is as the working power of PLC28 and circuit breaker.After the high and low pressure panel switches closed a floodgate, the PLC28 device at first carried out self check to whole panel switches system, and shows by GOT30, can put into operation after system is normal.PLC28 monitors in real time line voltage distribution, electric current, the divide-shut brake situation of high and low pressure panel switches and shows; the fault that the panel switches feedback of the overload of panel switches system, short circuit, the phase failure, overvoltage, fault such as under-voltage and transformer opposite side is come; PLC28 is according to giving the logical relation of setting earlier; the output control and protection signal is given performance element; drive circuit breaker trip, thereby realize protection.
Overload protection; the overload protection sampled value is taken from B phase current mutual inductor 15 and voltage changer; this sampling value is sent into the CHOA/D passage of PLC28; after changing, A/D sends into the inner DI register of PLC28; when this data in register during greater than 1.2 times of PCL28 inner setting value, PLC28 time-delay output one switching signal makes the high-pressure side circuit breaker trip.
Short-circuit protection: the short-circuit protection sampled value is taken from A, C phase current mutual inductor 13,17 and voltage changer; this sampling value is sent into CH, the A/D passage of PLC28; after the A/D conversion, send into the inner D12 register of PLC28; when the arbitrary phase current of A, C surpassed set point, PLC28 protected by the anti-time limit characteristic of setting.
Under-voltage, overvoltage protection: under-voltage, overvoltage protection sampled value is taken from the voltage of panel switches, the current transformer transducer of converter; send into PLC 28, CH3 A/D passage; after the A/D conversion, send into the D14 register; PLC28 in each scan period with D14 in data and set point compare; when be lower than voltage 75% or when being higher than 125%, PLC28 just controls circuit breaker and realizes protection.
In like manner, the utility model can also realize that earth leakage protective, reserve trip protection, the open phase protection of high voltage power distribution switch, overtemperature prote, last level power supply to the low-voltage distribution switch tightly stop protection etc.
Therefore, the utlity model has simple in structure, stable performance, reliable, characteristics such as installation and maintenance are convenient provide a kind of comprehensive protection device of intelligence for flame-proof mine high and low pressure panel switches.
Claims (1)
- A kind of control able to programme and interface display high and low voltage electric distribution switch intelligent type comprehensive protector; it is characterized in that including industrial programmable controller (28); man-machine screen (30); man-machine screen (30) connects with industrial programmable controller (28); industry programmable controller (28) is fixed on height; the flameproof cabinet of low-voltage distribution switch (29) inboard, Qianmen; the signals collecting end of industry programmable controller 28 is with high; the voltage of low-voltage distribution switch; current transformer connects, and the output control terminal of industrial programmable controller (28) is with high; the circuit breaker of low-voltage distribution switch connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03216740 CN2613915Y (en) | 2003-04-24 | 2003-04-24 | Intelligent comprehensive protector with programmable control and interface display for high/low voltage distribution switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03216740 CN2613915Y (en) | 2003-04-24 | 2003-04-24 | Intelligent comprehensive protector with programmable control and interface display for high/low voltage distribution switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2613915Y true CN2613915Y (en) | 2004-04-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03216740 Expired - Lifetime CN2613915Y (en) | 2003-04-24 | 2003-04-24 | Intelligent comprehensive protector with programmable control and interface display for high/low voltage distribution switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2613915Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102237711A (en) * | 2010-04-29 | 2011-11-09 | 上海宝钢化工有限公司 | Standby power switching device and power failure judgment method thereof |
| CN102646964A (en) * | 2012-04-28 | 2012-08-22 | 山西科泰电气有限公司 | High-low voltage integrated control device for coal mine power center |
| CN103427343A (en) * | 2013-09-03 | 2013-12-04 | 天津华宁电子有限公司 | Mining flameproof and intrinsically-safe type load center based on high-voltage switches and low-voltage switches |
| CN106970675A (en) * | 2017-05-15 | 2017-07-21 | 郑州云海信息技术有限公司 | A kind of protection circuit system based on PLC |
-
2003
- 2003-04-24 CN CN 03216740 patent/CN2613915Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102237711A (en) * | 2010-04-29 | 2011-11-09 | 上海宝钢化工有限公司 | Standby power switching device and power failure judgment method thereof |
| CN102237711B (en) * | 2010-04-29 | 2013-07-24 | 上海宝钢化工有限公司 | Standby power switching device and power failure judgment method thereof |
| CN102646964A (en) * | 2012-04-28 | 2012-08-22 | 山西科泰电气有限公司 | High-low voltage integrated control device for coal mine power center |
| CN103427343A (en) * | 2013-09-03 | 2013-12-04 | 天津华宁电子有限公司 | Mining flameproof and intrinsically-safe type load center based on high-voltage switches and low-voltage switches |
| CN103427343B (en) * | 2013-09-03 | 2016-03-09 | 天津华宁电子有限公司 | A kind of mine flameproof and intrinsic safety type load center based on high and low voltage switch |
| CN106970675A (en) * | 2017-05-15 | 2017-07-21 | 郑州云海信息技术有限公司 | A kind of protection circuit system based on PLC |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: TAI AN ZONGCHENG MINE AUTOMATION CO., LTD. Free format text: FORMER OWNER: JI ZHEN Effective date: 20081114 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20081114 Address after: Box 2, high tech center, hi tech Development Zone, Shandong, Tai'an Province: 271000 Patentee after: Taian Zhongcheng Mine Automation Co., Ltd. Address before: Box 2, hi tech service center, Shandong, Tai'an Province: 271000 Patentee before: Ji Zhen |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 271000 mailbox, Gao Chong Center, hi tech Development Zone, Shandong, Tai'an 2, China Patentee after: Taian Zhongcheng Mine Automation Co., Ltd. Address before: 271000 mailbox, Gao Chong Center, hi tech Development Zone, Shandong, Tai'an 2, China Patentee before: Taian Zhongcheng Mine Automation Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130424 Granted publication date: 20040428 |