CN205898924U - Online status monitoring device of solid -state soft starter silicon controlled rectifier of high pressure - Google Patents
Online status monitoring device of solid -state soft starter silicon controlled rectifier of high pressure Download PDFInfo
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- CN205898924U CN205898924U CN201620756522.9U CN201620756522U CN205898924U CN 205898924 U CN205898924 U CN 205898924U CN 201620756522 U CN201620756522 U CN 201620756522U CN 205898924 U CN205898924 U CN 205898924U
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Abstract
The utility model provides an online status monitoring device of solid -state soft starter silicon controlled rectifier of high pressure which characterized in that: high voltage power supply causes high -pressure solid -state soft start cabinet from cable conductor for the high tension switchgear, and the leading -out terminal of high -pressure solid -state soft start cabinet passes through the wire and is connected with the motor, in the solid -state soft start cabinet of high pressure, current detection unit, synchronous transformer, temperature transducer, silicon controlled rectifier end voltage detection unit all are connected with the main control unit, the main control unit is connected with touch -sensitive screen, bypass contactor and trigger element respectively, and the trigger element is connected with silicon controlled rectifier end voltage detection unit and temperature transducer respectively with silicon controlled rectifier unit connection, silicon controlled rectifier unit, silicon controlled rectifier end voltage detection unit and temperature transducer insert the main control unit simultaneously, and the main control unit links to each other with the touch -sensitive screen, a silicon controlled rectifier unit total three -phase thyristor circuit, it has 5 group's inverse parallel silicon controlled rectifiers whenever to be connected, two inverse parallel silicon controlled rectifiers in the every group, through wire and voltage sample unit connection, the voltage sample unit is connected with silicon controlled rectifier end voltage detection unit.
Description
Technical field
The utility model is related to a kind of high-voltage solid-state soft start equipment, controlled particularly to a kind of high-voltage solid-state soft initiator
Silicon on-line condition monitoring device.
Background technology
High-voltage solid-state soft start equipment is widely used in the industries such as oil, chemical industry, building materials, iron and steel, papermaking and military project.Through
Development for many years, by its application extensively, well startability to be particularly well-suited to various severe working environments etc. excellent
Point, it has also become the mainstream configuration of below 6000kw high-tension motor soft start equipment, controllable silicon sets as high-voltage solid-state soft start
Standby core component, at present due to controllable silicon is not accomplished with monitored over time and early warning, when controllable silicon breaks down, Zhi Nengyong
Universal meter or detected with silicon controlled rectifier detector.There is error with universal meter detection, and silicon controlled rectifier detector detection also will
Detection is disassembled from equipment, has both affected to produce, and very big inconvenience is brought to usual maintenance and detection.
Content of the invention
The utility model is the deficiency of the controllable silicon whole process on-line monitoring for existing high-voltage solid-state soft start, provides one kind
High-voltage solid-state soft initiator controllable silicon on-line condition monitoring device, this device can monitored over time can in startup and running
The control various state of silicon.Quick detection controllable silicon quality, and send early warning, accomplish on-call maintenance, process and replacing.
The technical solution of the utility model is: a kind of high-voltage solid-state soft initiator controllable silicon on-line condition monitoring device, bag
Include high-tension switch cabinet, high-voltage solid-state soft-start cabinet, high-tension motor, voltage sampling unit, controllable silicon terminal voltage detecting unit；Its
It is characterised by: high voltage power supply causes high-voltage solid-state soft-start cabinet end of incoming cables from high-voltage switch cabinet cable, high-voltage solid-state is soft to be opened
The leading-out terminal of dynamic cabinet is connected with motor by wire；In high-voltage solid-state soft-start cabinet, current detecting unit, synchronous transformation
Device, temperature transducer, controllable silicon terminal voltage detecting unit are all connected with main control unit；Main control unit respectively with touch-screen, bypass
Contactor and trigger element connect, and trigger element is connected with controllable silicon unit, controllable silicon unit is examined with controllable silicon terminal voltage respectively
Survey unit and temperature transducer connects；Controllable silicon terminal voltage detecting unit and temperature transducer are concurrently accessed main control unit, master control
Unit is connected with touch-screen by way of communication again.
Described controllable silicon unit, total a, b, c three-phase controllable silicon circuit, every phase ghyristor circuit be connected with 5 groups anti-
Controllable silicon in parallel, every group of two inverse parallel controllable silicons are connected with voltage sampling unit by wire, voltage sampling unit with controlled
Silicon terminal voltage detecting unit connects.
Described every group two inverse parallel controllable silicon two ends export one group of voltage signal, send voltage sample list to by wire
Unit, after resistance r1, r2, r3, r4, r5, r6, r7 partial pressure, produces one group of weak voltage signal at resistance r4 two ends, this voltage is believed
Number controllable silicon terminal voltage detecting unit is sent to by wire, controllable silicon terminal voltage detecting unit use optical coupler ic isolation by its
It is changed into data signal and is sent to single-chip microcomputer, then signal is reached by main control unit by optical fiber, main control unit calculates by software
Judge silicon controlled state.
The utility model taking one group of a phase is as a example implemented, other two-phases every group of circuit structure, connected mode, electricity
Road principle all same.
The beneficial effects of the utility model are: a kind of high-voltage solid-state soft initiator controllable silicon on-line condition monitoring device, are
Using the principle of voltage sampling unit series resistance partial pressure, draw one group of weak voltage signal and reach testing circuit, testing circuit makes
It is changed into data signal with optical coupler ic isolation, then signal is reached by main control unit by optical fiber, main control unit is counted by cpu
Calculate, starting and the various state of monitored over time controllable silicon in running.The quality of quick detection silicon-controlled device, and send pre-
Alert, reduce fault rate and maintenance time, accomplish to change in time.Two surveys are installed in the radiator of every phase controllable silicon unit simultaneously
Temperature sensor, the operating temperature of energy real-time monitoring controllable silicon unit, send in time and report to the police and cut off starting-up later time, prevent because of user
Do not observe operational procedure, intensive startup by force causes silicon controlled to damage.Main control unit passes through the prison in communication mode and cabinet door
Survey touch-screen to be connected, user can check the temperature of controllable silicon unit and the intact degree of every group of controllable silicon unit at any time.
Brief description
With reference to the accompanying drawings and examples the utility model is further illustrated.
Fig. 1 is process flow diagram of the present utility model.
Fig. 2 is the controllable silicon working condition monitored over time circuit diagram of Fig. 1.
In accompanying drawing 1 and Fig. 2,1. high-tension switch cabinet, 2. high-voltage solid-state soft-start cabinet, 3. high-tension motor, 4. electric current inspection
Survey unit, 5. synchrotrans, 6. temperature transducer, 7. controllable silicon terminal voltage detecting unit, 8. trigger element, 9. master control
Unit, 10. touch-screen, 11. bypass contactors, 12. controllable silicon units, 13. voltage sampling unit.
Specific embodiment
The utility model embodiment, as depicted in figs. 1 and 2, high voltage power supply after high-tension switch cabinet 1 pass through cable with
The end of incoming cables of high-voltage solid-state soft-start cabinet 2 connects, and the leading-out terminal of high-voltage solid-state soft-start cabinet 2 is connected with high-tension motor 3；In height
On the inner frame of pressure solid-state soft-start cabinet 2, current detecting unit 4, synchrotrans 5, temperature transducer 6, controllable silicon end electricity
Pressure detector unit 7 is all connected with main control unit 9；Main control unit 9 respectively with touch-screen 10, bypass contactor 11 and trigger element 8
Connect, trigger element 8 is connected with controllable silicon unit 12, controllable silicon unit 12 respectively with controllable silicon terminal voltage detecting unit 7 and survey
Temperature sensor 6 connects；Controllable silicon terminal voltage detecting unit 7 and temperature transducer 6 are concurrently accessed main control unit 9, and main control unit 9 leads to
The mode crossing communication is connected with touch-screen 10 again.
In controllable silicon unit 12, total a, b, c three-phase controllable silicon circuit (not drawing in accompanying drawing), as shown in Fig. 2 every phase
Ghyristor circuit is connected with 5 groups of inverse parallel controllable silicons, and every group of two inverse parallel controllable silicons pass through wire and voltage sampling unit 13
Connect, voltage sampling unit 13 is connected with controllable silicon terminal voltage detecting unit 7.The utility model is taking one group of a phase as a example to carry out
Implement, every group of circuit structure of other two-phases, connected mode, circuit theory all same.
In controllable silicon unit 12(three-phase) in circuit, every group two inverse parallel controllable silicon two ends export one group of voltage signal,
Voltage sampling unit 13 is sent to by wire, in the circuit of voltage sampling unit 13, voltage signal through resistance r1, r2, r3,
After r4, r5, r6, r7 partial pressure, produce one group of weak voltage signal at resistance r4 two ends, this voltage signal is sent to by wire can
Control silicon terminal voltage detecting unit 7, resistance r8, resistance r8 and diode vd1 negative electrode, capacitor c1 and light are accessed in voltage signal one end
The input of coupling device ic is connected, the other end of voltage signal directly and the anode of diode vd1, the other end of capacitor c1 and
Another input of optical coupler ic is connected.The reference dc voltage positive pole vcc of controllable silicon terminal voltage detecting unit 7 and negative pole
Gnd is to be provided by the power module in detection plate.After equalizing resistance partial pressure, controllable silicon both end voltage about 1155v, optical coupler ic
Conducting；When controllable silicon damages, controllable silicon both end voltage is always zero.Controllable silicon terminal voltage detecting unit 7 uses optical coupler ic
Isolation is changed into data signal and is sent to single-chip microcomputer, then by optical fiber, signal is reached main control unit 9, and main control unit 9 passes through
Cpu is judging silicon controlled state.
Operation principle of the present utility model is: the synchronization after high-tension switch cabinet 1 closes a floodgate, in high-voltage solid-state soft-start cabinet 2
The signal detecting is delivered to main control unit 9 by transformer 5, and main control unit 9 receives temperature transducer 6 and controllable silicon end electricity simultaneously
The signal of pressure detector unit 7, if controllable silicon cell temperature is in allowed band, and controllable silicon is intact, and main control unit 9 sends and allows to open
Dynamic instruction, and synchronization shows relevant information in touch-screen 10.After main control unit 9 receives startup order, by optical fiber
Send soft-start signal to trigger element 8, controllable silicon unit 12 turns on, and reduced-voltage starting starts, and current detecting unit 4 detects simultaneously
To signal deliver to main control unit 9, when detect current attenuation to motor rated value below after, main control unit 9 sends bypass
Order, bypass contactor 11 adhesive, start-up course completes.Taking rated voltage 10kv as a example, during reduced-voltage starting, controllable silicon
During unit 12 conducting, silicon controlled terminal voltage drops to about 0v, when controllable silicon turns off, through equalizing resistance partial pressure, every controllable silicon
Voltage divides equally 1155v；If controllable silicon punctures, then terminal voltage is 0v all the time.Main control unit 9 such as detects in start-up course can
Control silicon damages or overtemperature, can send alarm signal immediately, and stop soft process, and Accident prevention expands.
Claims (1)
1. a kind of high-voltage solid-state soft initiator controllable silicon on-line condition monitoring device, including high-tension switch cabinet, high-voltage solid-state is soft opens
Dynamic cabinet, high-tension motor, voltage sampling unit, controllable silicon terminal voltage detecting unit；It is characterized in that: high voltage power supply presses off from height
Close cabinet cable and cause high-voltage solid-state soft-start cabinet end of incoming cables, the leading-out terminal of high-voltage solid-state soft-start cabinet pass through wire with electronic
Machine connects；In high-voltage solid-state soft-start cabinet, current detecting unit, synchrotrans, temperature transducer, the inspection of controllable silicon terminal voltage
Survey unit to be all connected with main control unit；Main control unit is connected with touch-screen, bypass contactor and trigger element respectively, trigger element
It is connected with controllable silicon unit, controllable silicon unit is connected with controllable silicon terminal voltage detecting unit and temperature transducer respectively；Controllable silicon
Terminal voltage detecting unit and temperature transducer are concurrently accessed main control unit, main control unit by communication by way of again with touch-screen phase
Connect；
Described controllable silicon unit, total a, b, c three-phase controllable silicon circuit, every phase ghyristor circuit is connected with 5 groups of inverse parallels
Controllable silicon, every group of two inverse parallel controllable silicons are connected with voltage sampling unit by wire, voltage sampling unit and controllable silicon end
Voltage detection unit connects；
Described every group two inverse parallel controllable silicon two ends export one group of voltage signal, send voltage sampling unit to by wire,
After resistance r1, r2, r3, r4, r5, r6, r7 partial pressure, produce one group of weak voltage signal, this voltage signal at resistance r4 two ends
Controllable silicon terminal voltage detecting unit is sent to by wire, controllable silicon terminal voltage detecting unit is become using optical coupler ic isolation
It is sent to single-chip microcomputer for data signal, then signal is reached by main control unit by optical fiber, main control unit calculates to judge by cpu
Silicon controlled state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620756522.9U CN205898924U (en) | 2016-07-19 | 2016-07-19 | Online status monitoring device of solid -state soft starter silicon controlled rectifier of high pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620756522.9U CN205898924U (en) | 2016-07-19 | 2016-07-19 | Online status monitoring device of solid -state soft starter silicon controlled rectifier of high pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205898924U true CN205898924U (en) | 2017-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620756522.9U Expired - Fee Related CN205898924U (en) | 2016-07-19 | 2016-07-19 | Online status monitoring device of solid -state soft starter silicon controlled rectifier of high pressure |
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| CN (1) | CN205898924U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106093656A (en) * | 2016-07-19 | 2016-11-09 | 襄阳赛克斯电气股份有限公司 | High-voltage solid-state soft initiator controllable silicon on-line condition monitoring device |
| CN111786355A (en) * | 2020-06-23 | 2020-10-16 | 上海电器科学研究所（集团）有限公司 | Protection device and protection method for restraining short circuit of direct current bus support capacitor |
-
2016
- 2016-07-19 CN CN201620756522.9U patent/CN205898924U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106093656A (en) * | 2016-07-19 | 2016-11-09 | 襄阳赛克斯电气股份有限公司 | High-voltage solid-state soft initiator controllable silicon on-line condition monitoring device |
| CN111786355A (en) * | 2020-06-23 | 2020-10-16 | 上海电器科学研究所（集团）有限公司 | Protection device and protection method for restraining short circuit of direct current bus support capacitor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20170118 Termination date: 20200719 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |