CN204349443U - A kind of distance protection equipment of transmission line - Google Patents
A kind of distance protection equipment of transmission line Download PDFInfo
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- CN204349443U CN204349443U CN201520051586.4U CN201520051586U CN204349443U CN 204349443 U CN204349443 U CN 204349443U CN 201520051586 U CN201520051586 U CN 201520051586U CN 204349443 U CN204349443 U CN 204349443U
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Abstract
The utility model relates to Relay Protection Technology in Power System field, particularly relates to a kind of distance protection equipment of transmission line.Described distance protection equipment, comprise: the curtage signal for outside is inputted is transformed into the input circuit of the weak electric signal that can sample, the CPU outputing function for completing protection, observing and controlling, communication function and hardware outputs plate, and guidance panel and power supply are opened into plate; Described input circuit, power supply open and adopt into plate before plug flat cable output plate with CPU and be connected.The technical program adopts open C PU to output plate; greatly reduce the kind of protective device, each plate of plug before adopting, flat cable connected mode; facilitate the extensibility of on-site maintenance and each plate of device, make device have higher fail safe, stability and reliability.
Description
Technical field
The utility model relates to Relay Protection Technology in Power System field, particularly relates to a kind of distance protection equipment of transmission line.
Background technology
Although existing market has had multiple distance protection product, but still some problems are had not to be well solved.Such as, product type kind is many especially, and bring a lot of workloads to the exploitation of product, production and after-sale service, operational management, the quantity of standby redundancy and kind are also more.The power source life of current domestic relay protection is general all very short, and within 5 ~ 6 years, will change once, the maintenance workload of product is larger; The relay protection of rear plug plate is main flow at present, but inconvenient plate extract maintenance.
Utility model content
The purpose of this utility model is the distance protection equipment proposing a kind of transmission line; the technical program adopts open C PU to output plate; greatly reduce the kind of protective device; the each plate of plug before adopting; flat cable connected mode; facilitate the extensibility of on-site maintenance and each plate of device, make device have higher fail safe, stability and reliability.
For reaching this object, the utility model by the following technical solutions:
A kind of distance protection equipment of transmission line, comprise: the curtage signal for outside is inputted is transformed into the input circuit of the weak electric signal that can sample, the CPU outputing function for completing protection, observing and controlling, communication function and hardware outputs plate, and guidance panel and power supply are opened into plate; Described input circuit, power supply open and adopt into plate before plug flat cable output plate with CPU and be connected.
Wherein, described power supply opens the industrial standard power supply of the RS-35-5 series adopting MEAN WELL company into plate, and described industrial standard power supply Jin Xu mono-road 5V exports.
Wherein, described device also comprises the digital communication overcurrent protection module for realizing secure exchange information and the GOOSE communication module for realizing network service, and described digital communication overcurrent protection module, GOOSE communication module are all outputed plate with CPU and be connected.
Wherein, described device also comprises, and protection backboard, described protection backboard is outputed plate by CAN with CPU and is connected.
Wherein, described CPU is outputed plate and is connected with the liquid crystal display of guidance panel by CAN.
Wherein, described guidance panel comprises liquid crystal display and keyboard, described keyboard comprises upper and lower, left and right, determines, cancels, "+" number, "-" number, involution, reset 10 buttons.
Wherein, described CPU outputs plate and comprises 32 Freescale Coldfire5282CPU chips and output relay.
Wherein, described flat cable adopts the flat cable of 1A050-6000EE, 3448-1A050 type terminal of 3M company.
Wherein, described guidance panel adopts MMI display panel.
Wherein, the input port of described input circuit comprises: A/D sample port, substantially open inbound port, substantially output port and service port; The basic input signal of described input circuit has analog input signal and On-off signal signal two kinds; Described analog input signal comprises: three-phase voltage, three-phase protective electric current, three-phase measure electric current, synchronous voltage, zero-sequence current.
Beneficial effect:
The distance protection equipment of a kind of transmission line described in the utility model, comprise: the curtage signal for outside is inputted is transformed into the input circuit of the weak electric signal that can sample, the CPU outputing function for completing protection, observing and controlling, communication function and hardware outputs plate, and guidance panel and power supply are opened into plate; Described input circuit, power supply open and adopt into plate before plug flat cable output plate with CPU and be connected.The technical program adopts open C PU to output plate; greatly reduce the kind of protective device, each plate of plug before adopting, flat cable connected mode; facilitate the extensibility of on-site maintenance and each plate of device, make device have higher fail safe, stability and reliability.
Accompanying drawing explanation
Fig. 1 is the overall logic block diagram of the distance protection equipment of a kind of transmission line that the utility model embodiment provides.
Fig. 2 is the Facad structure schematic diagram of the guidance panel of the distance protection equipment of a kind of transmission line that the utility model embodiment provides.
The internal structure schematic diagram of the distance protection equipment of a kind of transmission line that Fig. 3 the utility model embodiment provides.
In figure:
1-input circuit; 2-CPU outputs plate; 3-guidance panel; 4-power supply is opened into plate; 5-digital communication overcurrent protection module; 6-GOOSE communication module; 7-protects backboard; 8-service port; 9-liquid crystal display; 10-keyboard; 11-indicator light.
Embodiment
The technical solution of the utility model is further illustrated by embodiment below in conjunction with accompanying drawing.
Fig. 1 is the overall logic block diagram of the distance protection equipment of a kind of transmission line that the utility model embodiment provides.As shown in Figure 1, the distance protection equipment of a kind of transmission line described in the utility model, comprise: the curtage signal for outside is inputted is transformed into the input circuit 1 of the weak electric signal that can sample, the CPU outputing function for completing protection, observing and controlling, communication function and hardware outputs plate 2, and guidance panel 3 and power supply are opened into plate 4; Described input circuit 1, power supply open and adopt into plate 4 before plug flat cable output plate 2 with CPU and be connected.
The technical program adopts open CPU to output plate 2, greatly reduces the kind of protective device, and each plate of plug before adopting, flat cable connected mode, facilitates the extensibility of on-site maintenance and each plate of device.Device is made to have higher fail safe, stability and reliability.
In this programme, described power supply opens the industrial standard power supply of the RS-35-5 series adopting MEAN WELL company into plate 4, and described industrial standard power supply Jin Xu mono-road 5V exports.Adopt industrial standardization power supply to simplify the Power Management Design of device, substantially increase the reliability of device.
The technical solution of the utility model is a kind of distance protection equipment being suitable for the integrated technical reformation of transmission line in electric power system, and be made up of hardware and software, software is embedded in hardware system.This device is opened primarily of power supply and is outputed plug-in unit, input circuit 1 plug-in unit and guidance panel 3 form into plug-in unit, CPU.The concrete arrangement position of internal plug is shown in the internal structure schematic diagram of the distance protection equipment of a kind of transmission line that accompanying drawing 3, Fig. 3 the utility model embodiment provides.Each plug-in unit determines fixed position according to the insertion position mark on guide-track groove.CPU outputs the core panel that plug-in unit is device, and CPU adopts 5282 chips to realize protecting and monitoring function, and each plate adopts highly reliable flat cable to connect.
Described device also comprises the digital communication overcurrent protection module 5 for realizing secure exchange information and the GOOSE communication module 6 for realizing network service, and described digital communication overcurrent protection module 5, GOOSE communication module 6 are all outputed plate 2 and be connected with CPU.Digital communication overcurrent protection module 5 makes described device have digital communication current protecting function; exchange message fast and safely between relay protection can be realized; the problem of effective solution traditional overcurrent protection Graded coordination difficulty is the further optimization to tradition " optical-fiber longitudinal difference protection+overcurrent protection " scheme.
As shown in Figure 1, described device also comprises protection backboard 7, and described protection backboard 7 is outputed plate 2 by CAN with CPU and is connected.Described CPU is outputed plate 2 and is connected with the liquid crystal display 9 of guidance panel 3 by CAN.
Fig. 2 is the Facad structure schematic diagram of the guidance panel 3 of the distance protection equipment of a kind of transmission line that the utility model embodiment provides.As shown in Figure 2, described guidance panel 3 comprises liquid crystal display 9, keyboard 10, indicator light 11 and service port 8, described keyboard 10 comprises upper and lower, left and right, determines, cancels, "+" number, "-" number, involution, reset 10 buttons.
In this programme, described CPU outputs plate 2 and comprises 32 Freescale Coldfire5282CPU chips and output relay.Described flat cable adopts the flat cable of 1A050-6000EE, 3448-1A050 type terminal of 3M company.Described guidance panel 3 adopts MMI display panel.
In this programme, the input port of described input circuit 1 comprises: A/D sample port, substantially open inbound port, substantially output port and service port 8; The basic input signal of described input circuit 1 has analog input signal and On-off signal signal two kinds; Described analog input signal comprises: three-phase voltage, three-phase protective electric current, three-phase measure electric current, synchronous voltage, zero-sequence current.
The employing full-closed structure of this device, cpu chip adopts advanced surface mounting technology, device strong and weak electricity loop, input and output loop configuration are reasonable, important devices (power module, instrument transformer, relay, liquid crystal, terminal) all adopts the matured product of domestic and international esbablished corporation, improves antijamming capability and the reliability of device.Open CPU outputs plate 2 and adopts Programmable Technology to achieve the specific demand of different user, realizes digital communication current protecting function by 485 communication ports.
The above; be only the utility model preferably embodiment; but protection range of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; be equal to according to the technical solution of the utility model and utility model design thereof and replace or change, all should be encompassed within protection range of the present utility model.
Claims (10)
1. the distance protection equipment of a transmission line, it is characterized in that, comprise: the curtage signal for outside is inputted is transformed into the input circuit of the weak electric signal that can sample, the CPU outputing function for completing protection, observing and controlling, communication function and hardware outputs plate, and guidance panel and power supply are opened into plate; Described input circuit, power supply open and adopt into plate before plug flat cable output plate with CPU and be connected.
2. distance protection equipment according to claim 1, is characterized in that, described power supply opens the industrial standard power supply of the RS-35-5 series adopting MEAN WELL company into plate, and described industrial standard power supply Jin Xu mono-road 5V exports.
3. distance protection equipment according to claim 1; it is characterized in that; described device also comprises the digital communication overcurrent protection module for realizing secure exchange information and the GOOSE communication module for realizing network service, and described digital communication overcurrent protection module, GOOSE communication module are all outputed plate with CPU and be connected.
4. distance protection equipment according to claim 1, is characterized in that, described device also comprises, and protection backboard, described protection backboard is outputed plate by CAN with CPU and is connected.
5. distance protection equipment according to claim 1, is characterized in that, described CPU is outputed plate and is connected with the liquid crystal display of guidance panel by CAN.
6. distance protection equipment according to claim 1, is characterized in that, described guidance panel comprises liquid crystal display and keyboard, described keyboard comprises upper and lower, left and right, determines, cancels, "+" number, "-" number, involution, reset 10 buttons.
7. distance protection equipment according to claim 1, is characterized in that, described CPU outputs plate and comprises 32 Freescale Coldfire5282 cpu chips and output relay.
8. distance protection equipment according to claim 1, is characterized in that, described flat cable adopts the flat cable of 1A050-6000EE, 3448-1A050 type terminal of 3M company.
9. distance protection equipment according to claim 1, is characterized in that, described guidance panel adopts MMI display panel.
10. distance protection equipment according to claim 1, is characterized in that, the input port of described input circuit comprises: A/D sample port, substantially open inbound port, substantially output port and service port; The basic input signal of described input circuit has analog input signal and On-off signal signal two kinds; Described analog input signal comprises: three-phase voltage, three-phase protective electric current, three-phase measure electric current, synchronous voltage, zero-sequence current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520051586.4U CN204349443U (en) | 2015-01-23 | 2015-01-23 | A kind of distance protection equipment of transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520051586.4U CN204349443U (en) | 2015-01-23 | 2015-01-23 | A kind of distance protection equipment of transmission line |
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| Publication Number | Publication Date |
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| CN204349443U true CN204349443U (en) | 2015-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520051586.4U Active CN204349443U (en) | 2015-01-23 | 2015-01-23 | A kind of distance protection equipment of transmission line |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106877294A (en) * | 2017-01-10 | 2017-06-20 | 赵志国 | Protective relaying device in transmission line of electricity |
| CN108462158A (en) * | 2017-02-22 | 2018-08-28 | 通用电气公司 | Power distribution system and the method for executing zone selective interlock wherein |
-
2015
- 2015-01-23 CN CN201520051586.4U patent/CN204349443U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106877294A (en) * | 2017-01-10 | 2017-06-20 | 赵志国 | Protective relaying device in transmission line of electricity |
| CN108462158A (en) * | 2017-02-22 | 2018-08-28 | 通用电气公司 | Power distribution system and the method for executing zone selective interlock wherein |
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