CN204230868U - Highlands diesel generating set frequency conversion protective device - Google Patents
Highlands diesel generating set frequency conversion protective device Download PDFInfo
- Publication number
- CN204230868U CN204230868U CN201420668551.0U CN201420668551U CN204230868U CN 204230868 U CN204230868 U CN 204230868U CN 201420668551 U CN201420668551 U CN 201420668551U CN 204230868 U CN204230868 U CN 204230868U
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- China
- Prior art keywords
- generator
- control module
- voltage detecting
- circuit
- detecting circuit
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
Highlands diesel generating set frequency conversion protective device, by Diesel engine, generator, electromagnet, circuit breaker, frequency converter, voltage detecting circuit, control module, field effect transistor forms, it is characterized in that the rotor of generator is connected with the rotating shaft of Diesel engine, the current output terminal of generator is connected with frequency converter through circuit breaker, the input of described voltage detecting circuit is connected with generator, the output of voltage detecting circuit is connected with the input of control module, the output voltage values of the generator detected is sent to control module by voltage detecting circuit, the output of control module is connected with field effect transistor, the beneficial effects of the utility model are the control adopting voltage detecting circuit and control module, work as generator output voltage, after electric current exceedes certain value, circuit can cut off the late-class circuit of generator output end automatically, late-class circuit can not be damaged because of overload.
Description
Technical field
The utility model relates to diesel generating set protective device technical field, is more particularly a kind of highlands diesel generating set frequency conversion protective device.
Background technology
Diesel generating set uses different from the situation of plains region in highlands, change is served in performance and use band to diesel generating set, general all to fluctuate in a larger scope, directly can not be supplied to electronic equipment to use, all need through a converter plant in practical application, converter plant Main Function is exactly that the voltage transitions of instability is become fixing phase voltage, is then supplied to relevant power consumption equipment or inputs to electrical network.Generally generator normally works, its power output is within the scope of its converter plant, but, rarefaction of air low due to air pressure in highlands, containing in the oxygen component situation such as abnormal such as little, generator also there will be the uncontrolled phenomenon of power output, its curtage being supplied to frequency converter all can exceed the tolerance range of frequency converter like this, and frequency converter is damaged.
Summary of the invention
For solving the problem, the utility model devises a kind of when output of a generator is excessive, automatic cut-out late-class circuit, it is made to be unlikely to because overload is damaged, substantially increase the fail safe of frequency converter, its technical scheme is: described highlands diesel generating set frequency conversion protective device is by Diesel engine, generator, electromagnet, circuit breaker, frequency converter, voltage detecting circuit, control module, field effect transistor forms, it is characterized in that the rotor of generator is connected with the rotating shaft of Diesel engine, the current output terminal of generator is connected with frequency converter through circuit breaker, the input of described voltage detecting circuit is connected with generator, the output of voltage detecting circuit is connected with the input of control module, the output voltage values of the generator detected is sent to control module by voltage detecting circuit, the output of control module is connected with field effect transistor, magnitude of voltage for sending according to described voltage detecting circuit controls the break-make of described field effect transistor, described electromagnet one end is connected on power supply, the other end is connected to one end of field effect transistor, the other end ground connection of field effect transistor, the push rod of switch near described electromagnet inside of described circuit breaker, when described electromagnet energising, inner push rod promotes the switch of circuit breaker, circuit breaker is disconnected, and then make frequency converter power-off.
Control module described in the utility model is PLC.
The beneficial effects of the utility model are the control that diesel generating set frequency conversion protective device in highlands adopts voltage detecting circuit and control module; after generator output voltage, electric current exceed certain value; circuit can cut off the late-class circuit of generator output end automatically, and late-class circuit can not be damaged because of overload.
accompanying drawing illustrates:
Accompanying drawing 1 is structural representation of the present utility model, in accompanying drawing 1:
1. Diesel engine, 2. generator, 3. electromagnet, 4. circuit breaker, 5. frequency converter, 6. voltage detecting circuit, 7. control module, 8. field effect transistor.
embodiment:
1 pair of the utility model describes in further detail by reference to the accompanying drawings, so that the public grasps implementation method of the present utility model better, the utility model specific embodiment is: described highlands diesel generating set frequency conversion protective device is by Diesel engine 1, generator 2, electromagnet 3, circuit breaker 4, frequency converter 5, voltage detecting circuit 6, control module 7, field effect transistor 8 forms, the rotor of described generator 2 is connected with the rotating shaft of Diesel engine 1, the current output terminal of generator 2 is connected with frequency converter 5 through circuit breaker 4, the input of described voltage detecting circuit 6 is connected with generator 3, the output of voltage detecting circuit 6 is connected with the input of control module 7, the output voltage values of the generator 2 detected is sent to control module 7 by voltage detecting circuit 6, the output of control module 7 is connected with field effect transistor 8, magnitude of voltage for sending according to described voltage detecting circuit 6 controls the break-make of described field effect transistor 8, described electromagnet 3 one end is connected on power supply, the other end is connected to one end of field effect transistor 8, the other end ground connection of field effect transistor 8, the push rod of switch near described electromagnet 3 inside of described circuit breaker 4, when described electromagnet 3 is energized, inner push rod promotes the switch of circuit breaker 4, circuit breaker 4 is disconnected, and then make frequency converter 4 power-off.
Control module 7 described in the utility model is PLC.
The beneficial effects of the utility model are the control adopting voltage detecting circuit 6 and control module 7, after generator 2 output voltage, electric current exceed certain value, circuit can cut off the late-class circuit of generator 1 output automatically, and late-class circuit can not be damaged because of overload.
Claims (2)
1. highlands diesel generating set frequency conversion protective device, by Diesel engine (1), generator (2), electromagnet (3), circuit breaker (4), frequency converter (5), voltage detecting circuit (6), control module (7), field effect transistor (8) forms, it is characterized in that the rotor of generator (2) is connected with the rotating shaft of Diesel engine (1), the current output terminal of generator (2) is connected with frequency converter (5) through circuit breaker (4), the input of described voltage detecting circuit (6) is connected with generator (3), the output of voltage detecting circuit (6) is connected with the input of control module (7), the output of control module (7) is connected with field effect transistor (8), described electromagnet (3) one end is connected on power supply, the other end is connected to one end of field effect transistor (8), the other end ground connection of field effect transistor (8), the push rod of switch near described electromagnet (3) inside of described circuit breaker (4).
2. diesel generating set frequency conversion protective device in highlands according to claim 1, is characterized in that described control module (7) is PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420668551.0U CN204230868U (en) | 2014-11-11 | 2014-11-11 | Highlands diesel generating set frequency conversion protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420668551.0U CN204230868U (en) | 2014-11-11 | 2014-11-11 | Highlands diesel generating set frequency conversion protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204230868U true CN204230868U (en) | 2015-03-25 |
Family
ID=52928920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420668551.0U Expired - Fee Related CN204230868U (en) | 2014-11-11 | 2014-11-11 | Highlands diesel generating set frequency conversion protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204230868U (en) |
-
2014
- 2014-11-11 CN CN201420668551.0U patent/CN204230868U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150325 Termination date: 20161111 |