CN202906281U - Integrated automatic control panel for low-voltage set of hydropower station - Google Patents
Integrated automatic control panel for low-voltage set of hydropower station Download PDFInfo
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- CN202906281U CN202906281U CN 201220130013 CN201220130013U CN202906281U CN 202906281 U CN202906281 U CN 202906281U CN 201220130013 CN201220130013 CN 201220130013 CN 201220130013 U CN201220130013 U CN 201220130013U CN 202906281 U CN202906281 U CN 202906281U
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- cabinet
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Abstract
The utility model discloses an integrated automatic control panel for a low-voltage set of a hydropower station. A voltmeter, a frequency meter, a water level indicator, a thermometer, an excitation adjusting device, an automatic synchronizing device, an automatic protection and control device of the low-voltage set of a generator and buttons are successively mounted on an upper panel of a cabinet; a main bus is mounted on a first fixing frame, a knife switch is mounted on a second fixing frame, a rotary mechanism is mounted on a third fixing frame, a current relay and a voltage relay are respectively mounted on a fourth fixing frame, air breakers are mounted on fifth and sixth fixing frames, a current transformer is mounted on a seventh fixing frame, and grounding protection is connected with the cabinet; an output cable is connected with a wire inlet end of a current transformer, a wire outlet end of the current transformer is connected with a wire inlet end of the air breaker, a wire outlet end of the air breaker is connected with a wire inlet end of the knife switch, a wire outlet end of the knife switch is connected with the main bus, the main bus is connected with the output cable, and the outlet cable is connected with a low voltage side of a main transformer from the top of the cabinet.
Description
Technical field
The utility model relates generally to a kind of automatic control flow, specifically the integrated automatic control flow of a kind of hydroelectric station low pressure unit.
Background technology
At present, in the existing small hydropower station of China, general rated voltage at 400V, single-machine capacity about 1000KW.The automation equipment of hydroelectric station low pressure unit roughly is divided into two classes.First kind configuration is higher, substantially adopts the configuration mode of high pressure unit.For example: the system configuration of layered distribution type, adopting Programmable Logic Controller (PLC) is the local control unit of core, Microcomputer Protection, microcomputer synchronization device etc.The Equations of The Second Kind configuration is the simplest, adopts " three-in-one " control flow with microcomputer controller of Ministry of Water Resources's the nineties in last century initial stage recommendation.This device has simple frequency modulation function, load rejection automatic shut-off function, regulates meritorious function, semi-automatic synchronization function etc. by water level.Because cheap, simple and reliable for structure, this device is favored by users quite.But owing to can not regulate excitation with " three-in-one " control flow of microcomputer controller, can not control idlely, and can not programme and sequential control, so device can only be calculated semi-automatic device, do not reach the state-of-the-art technology requirement, can only be as a kind of transition alternate device.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, provides a kind of hydroelectric station low pressure unit integrated automatic control flow; This control flow integrates primary equipment, secondary device, and wherein primary equipment comprises HD13B type disconnection switch, DW15 type intelligence energy pre-storage formula circuit breaker and measuring and protecting and the poor Current Transformer of Excitation Adjustment.Secondary device comprises RBC804G small power station intelligence controlling device, thyristor excitation automatic control equipment and measuring instrument, and is provided with the optional master system of joining of RS485 communication port, such as industrial computer, printer, display screen.
The technical solution of the utility model is: low pressure unit integrated automatic control flow in a kind of hydroelectric station comprises cabinet, voltmeter, frequency meter, water gage, thermometer, excitation regulation device, automatic paralleling device, generator low-voltage unit automation protection control device, control button, fixed mount, knife switch, air circuit, current relay, voltage relay summation current transformer; It is characterized in that: control flow (cabinet) overall dimension of making of metal material is 800mm * 2200mm * 600mm, is separately installed with successively voltmeter, frequency meter, water gage, thermometer, excitation regulation device, automatic paralleling device, generator low-voltage unit automation protection control device and control button in the upper panel of cabinet; (welding) is installed in cabinet column and the first fixed mount, the second fixed mount, the 3rd fixed mount, the 4th fixed mount, the 5th fixed mount, the 6th fixed mount and the 7th fixed mount are arranged; Main bus bar is installed in the first fixed mount; knife switch is installed in the second fixed mount; rotating mechanism the 3rd fixed mount; current relay and voltage relay are installed in respectively the 4th fixed mount; air circuit is installed in the 5th fixed mount and the 6th fixed mount; current transformer is installed in the 7th at fixed mount, and ground protection is connected with cabinet by wire.
The output cable of hydraulic generator is connected with the end of incoming cables of current transformer, the leading-out terminal of current transformer is connected with the air circuit end of incoming cables, the leading-out terminal of air circuit is connected with the end of incoming cables of knife switch, the leading-out terminal of knife switch is connected with main bus bar, main bus bar is connected with output cable, output cable is connected with the main transformer low-pressure side from the top of cabinet, and each electric component connection wire all is fixed on the column in the cabinet; Control, protection and measuring equipment in the control flow is connected with outer industrial computer, computer, the printer of data wire and cabinet by wire.
Low pressure unit integrated automatic control flow in hydroelectric station described in the utility model is provided with in the cabinet upper panel: electric quantity acquisition interface G1X, and electric quantity acquisition interface G1X is connected by holding wire with generator, voltage transformer; Light current intake interface G2X, forceful electric power intake interface G4X are connected holding wire with generator excitation adjusting device with the speed regulator adjusting device and are connected; Working power interface G5X, the amount of leaving interface G6X are connected by holding wire with generator control switch, excitation regulation device, speed regulator adjusting device; The interface G7X of generator low-voltage unit automation protection control device is connected with the alterating and direct current source port; Ethernet interface G3X is connected with netting twine with control flow industrial computer, computer outward.
The beneficial effects of the utility model are: the integrated automatic control flow of this hydroelectric station low pressure unit; realization is to hydraulic generator Auto Power On, shutdown and accident automatic shutdown function; can carry out regulating and controlling to speed regulator, excitation system according to actual conditions; realization is to the small hydropower station centralized control; unwatched automatic management has improved the economic benefit of enterprise.
Description of drawings:
Below in conjunction with drawings and Examples the utility model is described in detail
Fig. 1 is the structural representation of the utility model control flow
Fig. 2 is the end view of Fig. 1
Fig. 3 is the terminals subgraph of Fig. 1 generator low-voltage unit automation protection control device
Fig. 4 is the electrical schematic diagram of Fig. 3
At Fig. 1; among Fig. 2,1; cabinet, 2; voltmeter; 3; frequency meter, 4; water gage, 5; thermometer; 6; excitation regulation device, 7; the automatic paralleling device, 8; generator low-voltage unit automation protection control device; 9; the emergency shutdown button, 10; stop botton, 11; the start button; 12; manual automatic transfer switch, 13; door lock, 14; shutter; 15; top cover, 16; door lock, 17; column; 18; the first fixed mount, 19; the second fixed mount, 20; the 3rd fixed mount; 21; rotary handle, 22; knife switch, 23; the 4th fixed mount; 24; voltage relay and current relay, 25; the 5th fixed mount, 26; circuit breaker;, 27; the 6th fixed mount, 28; current transformer; 29; the 7th fixed mount; 30; the inlet wire cable, 31; main bus bar, 32; output cable.
Embodiment
The integrated automatic control flow of hydroelectric station low pressure unit, embodiment with reference to accompanying drawing 1 and accompanying drawing 2, the overall dimension of the cabinet 1 of making of metal material is 800mm * 2200mm * 600mm, be provided with the shutter 14 of ventilation and heat in the bottom of cabinet 1, the both sides of cabinet 1 are equipped with side plate, the top of cabinet 1 is provided with top cover 15, and four jiaos of top cover 15 are made as arc.The rear portion of cabinet 1 is provided with rear plate, also can adopt hinged dodge gate.Cabinet 1 panel is divided into up and down two parts; upper panel at cabinet 1 is installed in voltmeter 2, frequency meter 3, water gage 4, thermometer 5, excitation regulation device 6, automatic paralleling device 7, generator low-voltage unit automation protection control device 8, emergency shutdown button 9, stop botton 10, start button 11 and manual automatic transfer switch 12 embeddings in the upper side plate hole of cabinet 1 successively; one sidewall of upper panel and the side plate wall of cabinet 1 are made as chain connection, and the opposite side of upper panel is provided with door lock 16.One sidewall of cabinet 1 lower panel is made as chain connection, and opposite side is provided with door lock 13.In cabinet 1, be welded with column 17, respectively the first fixed mount 18, the second fixed mounts 19, the three fixed mounts 20, the four fixed mounts 23, the five fixed mounts 25, the 6th fixed mount 27, the seven fixed mounts 29 be fixed in the cabinet.To export bus and be installed on the first fixed mount 18, knife switch 22 is installed on the second fixed mount 19, and the knife switch rotating mechanism is installed on the 3rd fixed mount 20, and current relay and voltage relay 24 are installed in respectively on the 4th fixed mount 23.Air circuit 26 is installed on the 5th fixed mount 25 and the 6th fixed mount 27, and current transformer 28 is installed in the 7th on fixed mount 29, and ground protection is connected with cabinet by wire.
The output cable 30 of hydraulic generator is connected with the end of incoming cables of current transformer 28, the leading-out terminal of current transformer 28 is connected with air circuit 26 ends of incoming cables, the leading-out terminal of air circuit 26 is connected with the end of incoming cables of knife switch 22, the leading-out terminal of knife switch 22 is connected with main bus bar 31, main bus bar 31 is connected with output cable 32, output cable 32 is connected with the main transformer low-pressure side from the top of cabinet 1, and each electric component connection wire all is fixed on the interior column 17 of cabinet in the cabinet 1.Control, protection and measuring equipment in the control flow is connected with outer industrial computer, computer, the printer of data wire and cabinet by wire.
Second embodiment of the present utility model with reference to accompanying drawing 3, is installed in the generator low-voltage unit automation protection control device 8 of cabinet 1 upper panel, is provided with electric quantity acquisition interface G1X, and electric quantity acquisition interface G1X is connected by holding wire with the generator voltage instrument transformer; Light current intake interface G2X, forceful electric power intake interface G4X are connected holding wire with generator, excitation regulation device with the speed regulator adjusting device and are connected; Working power interface G5X, the amount of leaving interface G6X are connected by holding wire with generator control switch, excitation regulation device 6, speed regulator adjusting device; The interface G7X of generator low-voltage unit automation protection control device 8 is connected with power of alterating and direct current; Ethernet interface G3X is connected with netting twine with control flow industrial computer, computer outward.
The automatic control flow of hydroelectric station low pressure unit one of the present utility model (electrical principle such as accompanying drawing 4), pre-set operating process and protection definite value are opened, shut down, are reported to the police by actuating of relay control generator.
This device also has following function: the operating state of generator and analog signal; send to generator low-voltage unit automation protection control device by cable; and flow to simultaneously water gage, thermometer, generating pusher side frequency meter, generating pusher side voltmeter carries out data and shows, the excitation system signal is sent to excitation regulation device.During generating, press the start button, judge through this device computing and logic; whether possesses compressor start up condition; if meet compressor start up condition, send power-on command to excitation regulation device, automatic paralleling device 7, speed regulator and generator, finish Auto Power On, autostop.This device to automatic paralleling, automatically regulate meritorious, automatically regulate idle, from the operation of motion tracking water level, automatically measure, function displaying voltage.Electric current, frequency, generating set temp. control function.Possess simultaneously current quick, timing overcurrent protection, overvoltage protection, under-voltage protection, overspeed protection, field loss protection and accidental shutdown function; Behind configuration comprehensive automation supervisory control comuter, also can possess networking function, realizes that many unit cooperatives connect, realize remote operation, monitoring,, tabulation, printing,, demonstration, accident record, electric weight accumulation calculating, statistics etc.Host computer also can link to each other with control centres at different levels by modulator-demodulator, realizes remote dispatching.Excitation unit then is comprised of power cell (excitation change, three-phase half-controlled rectifier bridge) and excitation regulation device two parts, can realize that digital given unit, automatically adjustment, system voltage are followed the tracks of, overvoltage monitors detection.Whole apparatus structure compactness, reliable operation, mean time between failures (MTBF) were greater than 16000 hours.
Claims (2)
1. the integrated automatic control flow of hydroelectric station low pressure unit comprises cabinet, voltmeter, frequency meter, water gage, thermometer, excitation regulation device, automatic paralleling device, generator low-voltage unit automation protection control device, control button, fixed mount, knife switch, air circuit, current relay, voltage relay summation current transformer; It is characterized in that: the control flow of making of metal material is separately installed with voltmeter, frequency meter, water gage, thermometer, excitation regulation device, automatic paralleling device, generator low-voltage unit automation protection control device and control button successively in the upper panel of cabinet; The first fixed mount, the second fixed mount, the 3rd fixed mount, the 4th fixed mount, the 5th fixed mount, the 6th fixed mount and the 7th fixed mount are installed in cabinet; Main bus bar is installed in the first fixed mount, knife switch is installed in the second fixed mount, rotating mechanism is installed in the 3rd fixed mount, current relay and voltage relay are installed in respectively the 4th fixed mount, air circuit is installed in the 5th fixed mount and the 6th fixed mount, current transformer is installed in the 7th at fixed mount, and ground protection is connected with cabinet by wire; The output cable of hydraulic generator is connected with the end of incoming cables of current transformer, the leading-out terminal of current transformer is connected with the air circuit end of incoming cables, the leading-out terminal of air circuit is connected with the end of incoming cables of knife switch, the leading-out terminal of knife switch is connected with main bus bar, main bus bar is connected with output cable, and output cable is connected with the main transformer low-pressure side from the top of cabinet; Control in the cabinet, protection, measuring equipment are connected with outer industrial computer, computer, the printer of data wire and cabinet by wire.
2. according to the integrated automatic control flow of claim 1 described hydroelectric station low pressure unit, it is characterized in that: be provided with in the cabinet upper panel: electric quantity acquisition interface G1X, electric quantity acquisition interface G1X is connected by holding wire with generator, voltage transformer; Light current intake interface G2X, forceful electric power intake interface G4X are connected holding wire with generator excitation adjusting device with the speed regulator adjusting device and are connected; Working power interface G5X, the amount of leaving interface G6X are connected by holding wire with generator control switch, excitation regulation device, speed regulator adjusting device; The interface G7X of generator low-voltage unit automation protection control device is connected with the alterating and direct current source port; Ethernet interface G3X is connected with netting twine with control flow industrial computer, computer outward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220130013 CN202906281U (en) | 2012-03-28 | 2012-03-28 | Integrated automatic control panel for low-voltage set of hydropower station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220130013 CN202906281U (en) | 2012-03-28 | 2012-03-28 | Integrated automatic control panel for low-voltage set of hydropower station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202906281U true CN202906281U (en) | 2013-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220130013 Expired - Fee Related CN202906281U (en) | 2012-03-28 | 2012-03-28 | Integrated automatic control panel for low-voltage set of hydropower station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202906281U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103887730A (en) * | 2014-03-27 | 2014-06-25 | 潍柴重机股份有限公司 | Combination-type generator set control panel and generator set |
| CN105842623A (en) * | 2016-04-01 | 2016-08-10 | 钛能科技股份有限公司 | Dynamic simulation test device based on frequency conversion control prime mover power |
-
2012
- 2012-03-28 CN CN 201220130013 patent/CN202906281U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103887730A (en) * | 2014-03-27 | 2014-06-25 | 潍柴重机股份有限公司 | Combination-type generator set control panel and generator set |
| CN103887730B (en) * | 2014-03-27 | 2017-01-04 | 潍柴重机股份有限公司 | Modular generating set control panel and generating set |
| CN105842623A (en) * | 2016-04-01 | 2016-08-10 | 钛能科技股份有限公司 | Dynamic simulation test device based on frequency conversion control prime mover power |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| DD01 | Delivery of document by public notice |
Addressee: Zhao Qiang Document name: Notification to Go Through Formalities of Registration |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: No. 9 North Han Industrial Park 441000 Xiangyang City, Hubei Province Road Patentee after: Zhao Qiang Address before: 441000 No. 7 East Daqing Road, Hubei, Xiangyang Patentee before: Zhao Qiang |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20140328 |