CN207251304U - A kind of protective relaying device of dual power supply - Google Patents
A kind of protective relaying device of dual power supply Download PDFInfo
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- CN207251304U CN207251304U CN201721265536.1U CN201721265536U CN207251304U CN 207251304 U CN207251304 U CN 207251304U CN 201721265536 U CN201721265536 U CN 201721265536U CN 207251304 U CN207251304 U CN 207251304U
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Abstract
A kind of protective relaying device of dual power supply of the utility model, including the first power insert, second source plug-in unit, DSP plug-in units, manage plug-in unit, open into plug-in unit, output plug-in unit, bus board and man-machine interface plug-in unit.First power insert and second source plug-in unit are connected with bus board respectively, ensure the dual power supply of device；DSP plug-in units are connected with bus board, are responsible for the calculating of protection philosophy；Management plug-in unit is connected with bus board, is responsible for handling failure recording, event report；Open and be connected into plug-in unit with bus board, be responsible for obtaining it is exterior open into；Output plug-in unit with bus board to be connected, be responsible for driving action of relay contact, and then realize the control to primary equipment and signal；Man-machine interface plug-in unit is connected with bus board, is responsible for the man-machine communications such as keyboard, liquid crystal.The special ORING controllers for the plug-in unit that the utility model passes through dual power supply, realize the seamless switching between two power supplys, improve the power supply reliability of relay protection.
Description
Technical field
Electric power network technique field is the utility model is related to, more particularly to a kind of protective relaying device of dual power supply.
Background technology
The reliability of high-voltage relay protective device directly decides the safe operation of power grid.In practical applications, relay is protected
The installation's power source of shield is a weak link, and due to the aging of its capacitor element, general electric system provides 5 years or so to replace
Power supply.The reliability of power insert is not high always, and when power insert is abnormal, protective relaying device loses power supply, exits fortune
OK, cause the device action time of single set protection elongated, double risks for covering protection and losing a set of protection, reduce the operation of system
Reliability.In this case, if the power supply of dual power supply is supported in relay protection, when a set of abnormity of power supply, device is not influenced
Normal operation, by the power supply reliability for the system that greatly improves.
Utility model content
Based on this, it is necessary to for the problem that current relay protection single supply, power supply reliability are low, there is provided a kind of dual power supply
Protective relaying device, improve the power supply reliability of device, lift the safety operation level of power grid.
A kind of protective relaying device of dual power supply, it is characterised in that including the first power insert, second source plug-in unit, DSP
Plug-in unit, manages plug-in unit, opens into plug-in unit, output plug-in unit, bus board and man-machine interface plug-in unit.
First power insert, second source plug-in unit are connected with bus board respectively, ensure the dual power supply of device；
The DSP plug-in units are connected with bus board, are responsible for the calculating of protection philosophy；
The management plug-in unit is connected with bus board, is responsible for handling failure recording, event report；
Described open is connected into plug-in unit with bus board, be responsible for obtaining it is exterior open into；Output plug-in unit with bus board to be connected, be responsible for drive
Motor type relay contact acts, and then realizes the control to primary equipment and signal；
The man-machine interface plug-in unit is connected with bus board, is responsible for the man-machine communications such as keyboard, liquid crystal.
First power insert, second source plug-in unit are realized seamless between two power supplys by special ORING controllers
Switching, improves the power supply reliability of relay protection.
A kind of protective relaying device of dual power supply of the utility model, is controlled by the ORING of dual power supply, realization device power supply
The raising of reliability, lifts the safety operation level of power grid.
Brief description of the drawings
Fig. 1 is a kind of protective relaying device exemplary plot of dual power supply of the utility model；
Fig. 2 is the wiring schematic diagram of the utility model.
Embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below according to attached drawing and implementation
Example, is further elaborated the utility model.It should be appreciated that specific implementation described herein is only explaining this
Utility model, does not limit the utility model.
As shown in Figure 1, a kind of protective relaying device of dual power supply, including the first power insert, second source plug-in unit, DSP
Plug-in unit, manages plug-in unit, opens into plug-in unit, output plug-in unit, bus board and man-machine interface plug-in unit.
First power insert, second source plug-in unit are connected with bus board respectively, ensure the dual power supply of device；
The DSP plug-in units are connected with bus board, are responsible for the calculating of protection philosophy；
The management plug-in unit is connected with bus board, is responsible for handling failure recording, event report；
Described open is connected into plug-in unit with bus board, be responsible for obtaining it is exterior open into；Output plug-in unit with bus board to be connected, be responsible for drive
Motor type relay contact acts, and then realizes the control to primary equipment and signal；
The man-machine interface plug-in unit is connected with bus board, is responsible for the man-machine communications such as keyboard, liquid crystal.
First power insert, second source plug-in unit are realized seamless between two power supplys by special ORING controllers
Switching, improves the power supply reliability of relay protection.
As shown in Fig. 2, the output of the first power insert passes through detection by special ORING controllers, ORING controllers
Voltage on MOSFET, ensures that bus power source will not be to the anti-sink current of single power insert；The internal diode of MOSFET ensures
Power switching is seamless switching.It is by controlling MOSFET, first and second power insert output voltage access backboard power supply is total
Line, to realize the function of dual power supply redundancy.When power loss all the way, then powered by another way power supply, device dead electricity will not be caused,
Improve device reliability.
A kind of protective relaying device of dual power supply of the utility model, is controlled by the ORING of dual power supply, realization device power supply
The raising of reliability, lifts the safety operation level of power grid.
Embodiment described above only expresses the several embodiments of the utility model, its description is more specific and detailed,
But it should not be interpreted as limiting the scope of the present invention.It should be pointed out that for the common of this area
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In the scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (2)
1. a kind of protective relaying device of dual power supply, it is characterised in that including the first power insert, second source plug-in unit, DSP is inserted
Part, manages plug-in unit, opens into plug-in unit, output plug-in unit, bus board and man-machine interface plug-in unit,
First power insert, second source plug-in unit are connected with bus board respectively, ensure the dual power supply of device；
The DSP plug-in units are connected with bus board, are responsible for the calculating of protection philosophy；
The management plug-in unit is connected with bus board, is responsible for handling failure recording, event report；
Described open is connected into plug-in unit with bus board, be responsible for obtaining it is exterior open into；Plug-in unit is outputed with bus board to be connected, be responsible for driving after
Electric appliance contact acts, and then realizes the control to primary equipment and signal；
The man-machine interface plug-in unit is connected with bus board, is responsible for the man-machine communications such as keyboard, liquid crystal.
2. the protective relaying device of a kind of dual power supply according to claim 1, it is characterised in that first power supply is inserted
Part, second source plug-in unit realize the seamless switching between two power supplys, improve the confession of relay protection by special ORING controllers
Electric reliability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721265536.1U CN207251304U (en) | 2017-09-28 | 2017-09-28 | A kind of protective relaying device of dual power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721265536.1U CN207251304U (en) | 2017-09-28 | 2017-09-28 | A kind of protective relaying device of dual power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207251304U true CN207251304U (en) | 2018-04-17 |
Family
ID=61889418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721265536.1U Active CN207251304U (en) | 2017-09-28 | 2017-09-28 | A kind of protective relaying device of dual power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207251304U (en) |
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2017
- 2017-09-28 CN CN201721265536.1U patent/CN207251304U/en active Active
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