CN208369204U - A kind of dereliction formula bus protection relay system on the spot - Google Patents
A kind of dereliction formula bus protection relay system on the spot Download PDFInfo
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- CN208369204U CN208369204U CN201820750357.5U CN201820750357U CN208369204U CN 208369204 U CN208369204 U CN 208369204U CN 201820750357 U CN201820750357 U CN 201820750357U CN 208369204 U CN208369204 U CN 208369204U
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- protection
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Abstract
The utility model discloses a kind of dereliction formula bus protection relay systems on the spot; each interval protection handset is all made of respective site protective device; realize the distributed bus differential protection based on bidirectional loop network; electric current, voltage analog and the switching value of each interval protection this side of handset in-site collecting, and pass through dual-ring network and other protection handset two-way communication shared datas；Each interval protection handset realizes each interval autoprotection function; such as route protection handset realizes the route protection equation of light, distance, overcurrent defencive function; interval protection handset is according to autoprotection protection act condition and female poor differential protection operation condition, the corresponding breaker of tripping.The utility model regards bus protection handset using the protection of each interval site; each interval site protection only acquires the analog quantity and switching value of this side, and by dual-ring network shared data, therefore handset is small in size; it can install on the spot, and reduce original busbar protective device.
Description
Technical field
The utility model relates to Relay Protection Technology in Power System fields, and in particular to a kind of dereliction formula bus protection on the spot
System.
Background technique
Current each substation is divided into conventional substation and intelligent substation.The protective device of conventional substation is installed on protection
It in control room, is switched far from primary equipment, results in the need for being attached using a large amount of cable, invested larger.Intelligent substation
Using the system architecture of " three layer of two net ", the equipment such as combining unit, intelligent terminal are installed near primary equipment, protective device peace
Loaded in protection control room, a large amount of optical cable is thereby produced, and produce some new problems, such as protection sampling, tripping
Link increases, rapidity and reliability decrease；The network architecture is complicated, and interchanger quantity is more.
In addition, traditional centralized bus protection causes body since it will acquire the analog quantity and switching value data of each side
Product is big, such as using installing on the spot, it is longer to will lead to cable distance, and device quantity is more.
Summary of the invention
Simultaneous bus protection handset function is protected based on route site in view of the above problems, the utility model proposes one kind
Guard method.
In order to achieve the above objectives, the utility model is achieved through the following technical solutions:
A kind of dereliction site bus differential protection device based on dual-ring network, by route protection handset, main transformer protection handset, mother
UNPROFOR protects handset, sectionalised protection handset is constituted, busbar voltage handset, and be respectively spaced oneself and it is respective build protection, simultaneously
Each interval handset is connected by hand-in-hand dual-ring network, the magnitude of current at each interval this interval of handset in-site collecting, voltage and its
Switching value needed for this interval, and by hand-in-hand dual-ring network and other handset shared datas, finally realize each interval protection
Function and bus protection function.
Each interval is only installed by each interval protective device, comprising: multiple route protection handsets, multiple main transformer protection handsets,
Multiple mother protection handsets, multiple sectionalised protection handsets and multiple busbar voltage handsets；Each interval protection handset is all made of respectively
From site protective device, the distributed bus differential protection based on bidirectional loop network, each interval protection this side of handset in-site collecting are realized
Electric current, voltage analog and switching value, and pass through dual-ring network and other protection handset two-way communication shared datas；Each interval is protected
Shield handset realizes each interval autoprotection function.
As the further preferred scheme of the utility model, each handset that is spaced is led to by protecting dual-ring network to establish data sharing
Letter link.
As the further preferred scheme of the utility model, each interval protection handset protection act only jumps this interval switch.
As the further preferred scheme of the utility model, the protection of any one interval can carry out independent debugging.
As the further preferred scheme of the utility model, each interval protection handset realizes that normal cable samples, conventional
Cable tripping.
The utility model has the beneficial effects that
The dereliction formula site busbar protective device based on dual-ring network of the utility model and guard method, utilize each interval
Bus protection handset, each analog quantity and switching value for being spaced site protection and only acquiring this side, by double are regarded in site protection
Looped network shared data, therefore handset is small in size, can install on the spot, and reduces original busbar protective device.
Detailed description of the invention
Fig. 1 is a kind of opening up for embodiment of the dereliction formula site busbar protective device based on dual-ring network of the utility model
Flutter schematic diagram.
Fig. 2 is a kind of a kind of implementation of guard method using dereliction formula site busbar protective device of the utility model
The flow diagram of example.
Specific embodiment
Below with reference to attached drawing, the guard method of the dereliction formula site busbar protective device of the utility model is carried out detailed
It describes in detail bright.
As depicted in figs. 1 and 2, a kind of dereliction formula busbar protective device on the spot includes more route protection handsets, more masters
Become protection handset, mother protection handset, sectionalised protection handset, busbar voltage handset, each protection handset passes through hand-in-hand bicyclic
Net is attached, each electric current, voltage analog and bus chopper switch amount for protecting handset in-site collecting itself, to realize each
(that is: route protection handset realizes that route protection function, main transformer protection handset realize main transformer protection function to protection interval autoprotection
Energy, mother protection handset realize that mother defencive function, sectionalised protection handset realize that sectionalised protection function, busbar voltage handset are realized
Busbar voltage acquisition), and protected by hand-in-hand dual-ring network to other intervals and oneself carry out data sharing, to respectively be spaced
Protection handset realizes that female poor differential protection calculates, and every interval protection handset includes the poor all defencive functions of mother, and root
Itself breaker is jumped according to female poor the result of the action, hair trip protection order is protected to other intervals by dual-ring network.
The implementation method of each interval voltage acquisition are as follows: when bus is applied to double-bus situation, each interval protection handset
Required voltage shares to the protection of other intervals by dual-ring network of handing in hand by busbar voltage handset, what each interval was acquired by cable
Disconnecting link position carries out voltage switching selection and uses mother's I voltage or mother's II voltage, and realizes its interval autoprotection function.
The method that each interval protection handset realizes bus protection function are as follows: voltage, electric current, knife needed for each interval protection handset
Gate position shares to the protection of other intervals by dual-ring network of handing in hand by each interval handset, and realizes that each interval protection handset is differential
The calculating of protection is to select to realize bus protection function, and by each corresponding breaker tripping of protection handset.
Claims (5)
1. a kind of dereliction formula bus protection relay system on the spot, it is characterized in that: each interval protective device is only installed at each interval, comprising:
Multiple route protection handsets, multiple main transformer protection handsets, multiple mothers protection handset, multiple sectionalised protection handsets and multiple mothers
Line voltage handset, above-mentioned all handsets establish data sharing communication linkage by dual-ring network of handing in hand, to constitute complete female
Line protects system；
Each interval protection handset is all made of respective site protective device, realizes the distributed bus differential protection based on bidirectional loop network,
Electric current, voltage analog and the switching value of each interval protection this side of handset in-site collecting, and pass through dual-ring network and other protections
Machine two-way communication shared data；Each interval protection handset realizes each interval autoprotection function.
2. a kind of dereliction formula bus protection relay system on the spot according to claim 1, characterized in that each interval handset passes through guarantor
Shield dual-ring network establishes data sharing communication linkage.
3. a kind of dereliction formula bus protection relay system on the spot according to claim 1, characterized in that each interval protection handset is protected
This interval switch is only jumped in shield movement.
4. a kind of dereliction formula bus protection relay system on the spot according to claim 1, characterized in that the protection of any one interval
Independent debugging can be carried out.
5. a kind of dereliction formula bus protection relay system on the spot according to claim 1, characterized in that each interval protection handset is equal
Realize normal cable sampling, normal cable tripping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820750357.5U CN208369204U (en) | 2018-05-21 | 2018-05-21 | A kind of dereliction formula bus protection relay system on the spot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820750357.5U CN208369204U (en) | 2018-05-21 | 2018-05-21 | A kind of dereliction formula bus protection relay system on the spot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208369204U true CN208369204U (en) | 2019-01-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820750357.5U Active CN208369204U (en) | 2018-05-21 | 2018-05-21 | A kind of dereliction formula bus protection relay system on the spot |
Country Status (1)
| Country | Link |
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| CN (1) | CN208369204U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109861179A (en) * | 2019-03-20 | 2019-06-07 | 南京国电南自电网自动化有限公司 | A kind of bus protection voltage-switching method suitable for powering mode of handing in hand |
| CN110364996A (en) * | 2019-07-24 | 2019-10-22 | 国家电网有限公司 | Improve the protective device of station service power supply reliability |
-
2018
- 2018-05-21 CN CN201820750357.5U patent/CN208369204U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109861179A (en) * | 2019-03-20 | 2019-06-07 | 南京国电南自电网自动化有限公司 | A kind of bus protection voltage-switching method suitable for powering mode of handing in hand |
| CN110364996A (en) * | 2019-07-24 | 2019-10-22 | 国家电网有限公司 | Improve the protective device of station service power supply reliability |
| CN110364996B (en) * | 2019-07-24 | 2021-08-20 | 国家电网有限公司 | Protection device for improving service power supply reliability |
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