CN102403695A - Transformer non-electrical quantity protection device and protection method - Google Patents
Transformer non-electrical quantity protection device and protection method Download PDFInfo
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- CN102403695A CN102403695A CN2011103714669A CN201110371466A CN102403695A CN 102403695 A CN102403695 A CN 102403695A CN 2011103714669 A CN2011103714669 A CN 2011103714669A CN 201110371466 A CN201110371466 A CN 201110371466A CN 102403695 A CN102403695 A CN 102403695A
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Abstract
A transformer non-electrical quantity protection device comprises a transformer non-electrical quantity protection body device, wherein the transformer non-electrical quantity protection body device is provided with a first trip contact, a second trip contact and a third trip contact; the first trip contact, the second trip contact and the third trip contact are connected to a first non-electrical quantity protection device, a second non-electrical quantity protection device and a third non-electrical quantity protection device, respectively; the first non-electrical quantity protection device is connected to a first two-out-of-three redundance module and a second two-out-of-three redundance module; the second non-electrical quantity protection device is connected to the first two-out-of-three redundance module and the second two-out-of-three redundance module; the third non-electrical quantity protection device is connected to the first two-out-of-three redundance module and the second two-out-of-three redundance module; and the first two-out-of-three redundance module and the second two-out-of-three redundance module are connected to a first trip circuit and a second trip circuit, respectively. The transformer non-electrical quantity protection device is capable of preventing either protection false tripping caused by a single-contact fault or failure to operate for operation in case of a fault of a single module.
Description
Technical field
The present invention relates to a kind of transformer non electrical quantity protective device and guard method, relate to the relaying protection field.
Background technology
At present, the transformer non electrical quantity protection of the overwhelming majority adopts single cover contact to join the design of single covering device, exist more because make moist, situation that the contact failure and other reasons causes protecting malfunction, had a strong impact on the safe and stable operation of electric power system.
Summary of the invention
For solving the problems of the technologies described above; The present invention provides a kind of transformer non electrical quantity protective device and guard method; Non electrical quantity protection body apparatus connects three and gets two redundant modules; Both can prevent the protection malfunction that the single contact fault causes, the protection tripping in the time of can preventing the individual module fault has again improved the reliability of transformer non electrical quantity protection.
Above-mentioned purpose of the present invention is to realize through such technical scheme: a kind of transformer non electrical quantity protective device; Comprise transformer non electrical quantity protection body apparatus, said transformer non electrical quantity protection body apparatus is provided with the first tripping operation contact, the second tripping operation contact and the 3rd tripping operation contact;
The said first tripping operation contact, the second tripping operation contact, the 3rd tripping operation contact connect the first non electrical quantity protective device, the second non electrical quantity protective device, the 3rd non electrical quantity protective device respectively;
The said first non electrical quantity protective device connects the one or three to be got two redundant modules and the two or three and gets two redundant modules,
The said second non electrical quantity protective device connects the one or three to be got two redundant modules and the two or three and gets two redundant modules,
Said the 3rd non electrical quantity protective device connects the one or three and gets two redundant modules and the two or three and get two redundant modules;
The said the 1 gets two redundant modules, the two or three gets two redundant modules and connects first trip(ping) circuit, second trip(ping) circuit respectively.
The said first non electrical quantity protective device, the second non electrical quantity protective device and the 3rd non electrical quantity protective device all are connected with to throw and move back pressing plate.
The said first tripping operation contact, the second tripping operation contact, the 3rd tripping operation contact connect the heavily moving expanding device of a contact, the heavily moving expanding device of contact respectively with embedded software realize three get two logics first protective device, second protective device be connected.
The guard method of a kind of transformer non electrical quantity; Transformer non electrical quantity protection body apparatus; Configuration three secondary tripping operation contacts: the first tripping operation contact, the second tripping operation contact and the 3rd tripping operation contact; Be linked into the non electrical quantity protective device of the no embedded software of three covers respectively: the first non electrical quantity protective device, the second non electrical quantity protective device and the 3rd non electrical quantity protective device; Trip signal gathers into outlet through the non electrical quantity protective device after heavily moving, exports and be unified into two-way, sends into the one or three respectively and gets two redundant modules, the two or three and get two redundant modules; Through three get two export to switch after judging the two-way trip(ping) circuit: two in first trip(ping) circuit, second trip(ping) circuit, three signals satisfy condition simultaneously and just export.
The guard method of a kind of transformer non electrical quantity; The fault-signal of the said first non electrical quantity protective device, the second non electrical quantity protective device and the 3rd non electrical quantity protective device inserts the one or three and gets two redundant modules, the two or three and get in two redundant modules, and getting two logical transition with three is two to get a logic.
A kind of transformer non electrical quantity protection guard method; The said first tripping operation contact, the second tripping operation contact, the 3rd tripping operation contact connect the heavily moving expanding device of a contact; The heavily moving expanding device of contact is connected with first protective device, second protective device that two logics are got in embedded software realization three respectively, and the heavily moving expanding device of contact only is used for the heavily moving of contact, and it is two that any tripping operation contact is heavily moved; Deliver to first protective device, second protective device respectively; First protective device or second protective device realize respectively that through built-in software three of each body apparatus input gets two logics, and gathering then is the tripping operation outlet, realize that inlet three gets two logics.
The present invention's a kind of transformer non electrical quantity protective device and guard method beneficial effect are following:
Adopt three to get the protection malfunction that two logics both can prevent that the single contact fault from causing, the protection tripping in the time of can preventing the individual module fault has again greatly improved the reliability of transformer non electrical quantity protection.
The parallelly connected exit of non electrical quantity protective device is all set up the outlet throwing and is moved back pressing plate, just can realize the On line inspection and the processing of failure protecting device or fault contact, greatly convenient on-the-spot O&M work.
The fault-signal of non electrical quantity protective device also inserts three and gets in two modules; In the time of then can realizing a cover non electrical quantity protective device fault; " three get two " module transfers the function of " two get one " logic to; The outlet of all can tripping is exported in the arbitrary tripping operation of other two non electrical quantity protective devices that is non-fault, has further guaranteed the action message of protection.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
Fig. 1 is the embodiment of the invention 1 structure chart;
Fig. 2 is the embodiment of the invention 2 structure charts.
Embodiment
Embodiment 1:
A kind of transformer non electrical quantity protective device comprises transformer non electrical quantity protection body apparatus, as: heavy gas, oil flow relay etc.Transformer non electrical quantity protection body apparatus configuration three secondary tripping operation contacts: the first tripping operation contact 1, the second tripping operation contact 2 and the 3rd tripping operation contact 3.The said first tripping operation contact 1, the second tripping operation contact 2, the 3rd tripping operation contact 3 connect the non electrical quantity protective device of the no embedded software of three covers respectively: the first non electrical quantity protective device A, the second non electrical quantity protective device B, the 3rd non electrical quantity protective device C;
The said first non electrical quantity protective device A connects the one or three and gets two redundant module a and the two or three and get two redundant module b,
The said second non electrical quantity protective device B connects the one or three and gets two redundant module a and the two or three and get two redundant module b,
Said the 3rd non electrical quantity protective device C connects the one or three and gets two redundant module a and the two or three and get two redundant module b;
The said the 1 gets two redundant module a, the two or three gets two redundant module b and connects the first trip(ping) circuit I, the second trip(ping) circuit II respectively.
Trip signal is heavily moving through the non electrical quantity protective device; That is: signal capture and demonstration; Gather into outlet; Outlet also is unified into two-way, send into the one or three respectively and get two redundant module a, the two or three and get two redundant module b, through three get two export to switch after judging the two-way trip(ping) circuit: the first trip(ping) circuit I, the second trip(ping) circuit II.
Adopt three to get the protection malfunction that two logics both can prevent that the single contact fault from causing, the protection tripping in the time of can preventing the individual module fault has again greatly improved the reliability of transformer non electrical quantity protection.
The first non electrical quantity protective device A, the second non electrical quantity protective device B and the 3rd non electrical quantity protective device C parallel connection exit are all set up the outlet throwing and are moved back pressing plate; Just can realize the On line inspection and the processing of failure protecting device or fault contact, greatly convenient on-the-spot O&M work.
If will: the fault-signal of the first non electrical quantity protective device A, the second non electrical quantity protective device B and the 3rd non electrical quantity protective device C inserts the one or three and gets two redundant module a, the two or three and get among the two redundant module b; In the time of then can realizing a cover protective device fault; " three get two " module transfers the function of " two get one " logic to, i.e. the outlet of all can tripping is exported in the arbitrary tripping operation of other two protective devices of non-fault.Further guaranteed the action message of protection.
Embodiment 2:
The first tripping operation contact 1, the second tripping operation contact 2, the 3rd tripping operation contact 3 connect the heavily moving expanding device of a contact; The heavily moving expanding device of contact respectively with embedded software realize three get two logics first protective device 1., 2. second protective device be connected; The heavily moving expanding device of contact only is used for the heavily moving of contact; It is two that any tripping operation contact is heavily moved; Deliver to respectively first protective device 1., second protective device 2., first protective device 1. or second protective device 2. realize " three get two " logic of each body apparatus input respectively through built-in software, gathering then is the tripping operation outlet; Realize inlet " three get two " logic, two cover protective devices have also avoided single covering device problem to cause the possibility of tripping.
Claims (6)
1. a transformer non electrical quantity protective device comprises transformer non electrical quantity protection body apparatus, and said transformer non electrical quantity protection body apparatus is provided with the first tripping operation contact (1), the second tripping operation contact (2) and the 3rd tripping operation contact (3);
The said first tripping operation contact (1), the second tripping operation contact (2), the 3rd tripping operation contact (3) connect the first non electrical quantity protective device (A), the second non electrical quantity protective device (B), the 3rd non electrical quantity protective device (C) respectively;
It is characterized in that:
The said first non electrical quantity protective device (A) connection the or three is got two redundant modules (a) and the two or three and is got two redundant modules (b),
The said second non electrical quantity protective device (B) connection the or three is got two redundant modules (a) and the two or three and is got two redundant modules (b),
Said the 3rd non electrical quantity protective device (C) connection the or three is got two redundant modules (a) and the two or three and is got two redundant modules (b);
The said the 1 gets two redundant modules (a), the two or three gets two redundant modules (b) and connects first trip(ping) circuit (I), second trip(ping) circuit (II) respectively.
2. according to the said a kind of transformer non electrical quantity protective device of claim 1, it is characterized in that: the said first non electrical quantity protective device (A), the second non electrical quantity protective device (B) and the 3rd non electrical quantity protective device (C) all are connected with to throw and move back pressing plate.
3. according to the said a kind of transformer non electrical quantity protective device of claim 1; It is characterized in that: the said first tripping operation contact (1), the second tripping operation contact (2), the 3rd tripping operation contact (3) connect the heavily moving expanding device of a contact, the heavily moving expanding device of contact respectively with embedded software realize three get two logics first protective device (1.), second protective device (2.) be connected.
4. a kind of according to claim 1 guard method of transformer non electrical quantity protective device; It is characterized in that: transformer non electrical quantity protection body apparatus; Configuration three secondary tripping operation contacts: the first tripping operation contact (1), the second tripping operation contact (2) and the 3rd tripping operation contact (3); Be linked into the non electrical quantity protective device of the no embedded software of three covers respectively: the first non electrical quantity protective device (A), the second non electrical quantity protective device (B) and the 3rd non electrical quantity protective device (C); Trip signal gathers into outlet after heavily moving through the non electrical quantity protective device; Outlet also is unified into two-way; Send into the one or three respectively and get two redundant modules (a), the two or three and get two redundant modules (b), through three get two export to switch after judging the two-way trip(ping) circuit: two in first trip(ping) circuit (I), second trip(ping) circuit (II), three signals satisfy condition simultaneously and just export.
5. like the guard method of the said a kind of transformer non electrical quantity of claim 4; It is characterized in that: the fault-signal of the said first non electrical quantity protective device (A), the second non electrical quantity protective device (B) and the 3rd non electrical quantity protective device (C) inserts the one or three and gets two redundant modules (a), the two or three and get in two redundant modules (b), and getting two logical transition with three is two to get a logic.
6. like the guard method of the said a kind of transformer non electrical quantity protective device of claim 3; It is characterized in that: the said first tripping operation contact (1), the second tripping operation contact (2), the 3rd tripping operation contact (3) connect the heavily moving expanding device of a contact; The heavily moving expanding device of contact is connected with first protective device (1.), second protective device (2.) that two logics are got in embedded software realization three respectively; The heavily moving expanding device of contact only is used for the heavily moving of contact; It is two that any tripping operation contact is heavily moved, and delivers to first protective device (1.), second protective device (2.) respectively, and first protective device (1.) or second protective device (2.) are realized " three get two " logic of each body apparatus input respectively through built-in software; Gathering then is the tripping operation outlet, realizes " three the get two " logic that enters the mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103714669A CN102403695A (en) | 2011-11-22 | 2011-11-22 | Transformer non-electrical quantity protection device and protection method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103714669A CN102403695A (en) | 2011-11-22 | 2011-11-22 | Transformer non-electrical quantity protection device and protection method |
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| CN102403695A true CN102403695A (en) | 2012-04-04 |
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| CN2011103714669A Pending CN102403695A (en) | 2011-11-22 | 2011-11-22 | Transformer non-electrical quantity protection device and protection method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103391094A (en) * | 2013-06-24 | 2013-11-13 | 国家电网公司 | Two-out-of-three logic export optimization method for direct current protection system |
| CN105931679A (en) * | 2016-05-18 | 2016-09-07 | 中国核动力研究设计院 | One-out-of-two conformation maintenance bypass device of reactor protection system |
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| US20030156367A1 (en) * | 2002-02-01 | 2003-08-21 | Macbeth Bruce F. | Arc fault circuit interrupter with upstream impedance detector |
| CN201466677U (en) * | 2009-06-19 | 2010-05-12 | 武汉钢铁(集团)公司 | Non-electric quantity protection remote tripping device of transformer |
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| CN202260396U (en) * | 2011-10-28 | 2012-05-30 | 国家电网公司运行分公司银川管理处 | Non-electric protection equipment for converter transformer |
| CN202333757U (en) * | 2011-11-22 | 2012-07-11 | 国网运行有限公司秦皇岛超高压管理处 | Transformer non-electricity protecting device |
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2011
- 2011-11-22 CN CN2011103714669A patent/CN102403695A/en active Pending
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| US20030156367A1 (en) * | 2002-02-01 | 2003-08-21 | Macbeth Bruce F. | Arc fault circuit interrupter with upstream impedance detector |
| CN101714776A (en) * | 2008-10-08 | 2010-05-26 | 国网运行有限公司上海超高压管理处 | 10KV station electric control system of convertor station adopting selecting 2 from 3 logic |
| CN201466677U (en) * | 2009-06-19 | 2010-05-12 | 武汉钢铁(集团)公司 | Non-electric quantity protection remote tripping device of transformer |
| CN202260396U (en) * | 2011-10-28 | 2012-05-30 | 国家电网公司运行分公司银川管理处 | Non-electric protection equipment for converter transformer |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103391094A (en) * | 2013-06-24 | 2013-11-13 | 国家电网公司 | Two-out-of-three logic export optimization method for direct current protection system |
| CN103391094B (en) * | 2013-06-24 | 2016-04-13 | 国家电网公司 | A kind of DC protection system three gets two logic export optimization method |
| CN105931679A (en) * | 2016-05-18 | 2016-09-07 | 中国核动力研究设计院 | One-out-of-two conformation maintenance bypass device of reactor protection system |
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Application publication date: 20120404 |