CN202513571U - Connection device of direct current control devices and protection devices and direct current field switch auxiliary contacts - Google Patents
Connection device of direct current control devices and protection devices and direct current field switch auxiliary contacts Download PDFInfo
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- CN202513571U CN202513571U CN 201220144965 CN201220144965U CN202513571U CN 202513571 U CN202513571 U CN 202513571U CN 201220144965 CN201220144965 CN 201220144965 CN 201220144965 U CN201220144965 U CN 201220144965U CN 202513571 U CN202513571 U CN 202513571U
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Abstract
Provided is a connection device of direct current control devices and protection devices and direct current field switch auxiliary contacts. A direct current power transmission system is provided with a first pole and a second pole. Each pole is respectively configured with three sets of redundant protective devices A, B and C. The first pole and the second pole are respectively configured with two sets of control devices. A total of ten devices consisting of the protective devices and the control devices need direct current switch auxiliary contacts. For direct current field switches of the direct current power transmission system and with insufficient auxiliary contacts at direct current switch positions, an independent re-action screen is arranged for extensions of contacts. When only three pairs of switch auxiliary contacts exist in the field, all the three pairs of contacts expand through the re-action, after re-action of each pair of contacts, one set of the protective devices of the A, B and C redundancy configurations is output to each pole, and two pairs of re-action contacts are selected to be connected to two sets of control devices of the first pole and the second pole. When only four pairs or five pairs of contacts exist in the field, four pairs of contacts are used, and two pairs in the four pairs expand through re-action.
Description
Technical field
The utility model relates to the method for attachment of a kind of DC control protection and dc fields switch auxiliary contact, is particularly useful for transforming under the not enough situation of DC engineering switch auxiliary node, realizes the access of the required on off state of control protection system.
Background technology
High voltage direct current transmission, is widely used like long distance, high-power, asynchronous networking, power quick adjustment property, trend controllability, transmission of electricity economy etc. owing to its distinctive advantage.The control protection system of direct current transportation is the maincenter of DC transmission system, and it is controlling all processes of AC and DC power transfer, direct current power conveying, and is protecting all electric equipments of current conversion station and DC power transmission line to avoid the infringement of electric fault.
Domestic common length is bipole arrangement apart from DC transmission system, and DC control system generally by dualization redundant configuration, adopt complete dualization of general employing or three and get two configurations by the direct current protecting system.Under the two poles of the earth (utmost point one, the utmost point two) dualization of DC control interface, the utmost point one, the equal triple modular redundant configuring condition of the utmost point two direct current protectings, need 10 pairs of position of the switch auxiliary contacts at most.
Dc switch position auxiliary contact often can't satisfy above-mentioned quantitative requirement in the actual engineering, and especially in some improvement project, only there are 6 pairs of auxiliary contacts of less than the part position of the switch.
Under the situation that can't transform and increase the output auxiliary contact to Switch main body, the control protection needs shared only actual switch position contact.
In the case, traditional design method is general considers with the mode of sowing:
1) the shared one pair of contact of control two cover systems, and shared signal power supply;
2) the shared contact of protection of the utmost point one and the utmost point two, and shared signal power supply;
3) a certain pair of contact carried out heavily moving, output is overpaied contact and is used for control, protection system, does not distinguish owing to use, and the protection (two overlap or three cover systems) that possibly have the same utmost point is although used different contacts, and actual source is heavily moved from same contact.
The utility model content
The purpose of the utility model is: the new jockey of a kind of DC control protection with dc fields switch auxiliary contact is provided; Making can be through the problem of heavy flowing mode solution dc fields switch auxiliary contact lazy weight; Simultaneously; Do not influence the redundant control or the reliability of protection system, and can not influence operation maintenance convenience and reliability.
The technical scheme that the utility model provides: the jockey of a kind of DC control protection and dc fields switch auxiliary contact; DC transmission system has the utmost point one and 2 two utmost points of the utmost point; Every utmost point has disposed redundant protective device A, B and the C cover of three covers respectively; The utmost point one and the utmost point two configurations two cover control device; Below totally ten protective devices and control device need be used the dc switch auxiliary contact, it is characterized in that for the not enough dc fields switch of the dc switch position auxiliary contact of DC transmission system, independently heavily moving screen is set carries out heavily moving:
When 1) scene has only Third Mate's switch auxiliary contact; All Third Mate's contact is all heavily moving; Export to the cover in the protective device of every utmost point A, B and C cover redundant configuration after every pair of contact is heavily moving, selecting wherein, the heavily moving contact of Second Mate is connected in the two cover control device of the utmost point one and the utmost point two;
When 2) scene has only four pairs or five pairs of contacts, use wherein four pairs of contacts, there have the Second Mate to carry out in these four pairs to be heavily moving, is connected respectively in every utmost point A or the B cover redundancy protection device one pair, also is connected respectively to two cover control device of the utmost point one and the utmost point two simultaneously; Second Mate's contact is linked to the C cover protective device of the utmost point one and the C cover protective device of the utmost point two respectively without overweight moving actual contact in addition;
When 3) scene has only six pairs of contacts; Wherein Second Mate's contact carries out heavily moving; Be connected to A cover protective device and the utmost point one and the utmost point 21 cover control device of the utmost point one after wherein one pair of contact heavily moves; Be connected to the A cover protective device of the utmost point two and the another set of control device of the utmost point one and the utmost point two after another pair is heavily moving, remain four pairs of actual contacts and be connected respectively to the B cover of the utmost point one and the B cover and the C cover protective device of the C cover protective device and the utmost point two.
The heavily moving screen of the utility model scheme is relatively independent, and the design of control protection system has versatility, as implementing the transformation of dc fields switch from now on, need not to change the design of control protection system screen cabinet.
There is not the situation of shared contact between the multipleization system of same protection, reduced the contact between the protection system as much as possible, avoid same fault effects to overlap more and protect and cause protection malfunction or tripping.
Consider from operation maintenance convenience and reliability requirement:
1) the redundant system device design of DC control is consistent, and dualization of direct current protecting or triple modular redundant system design also are consistent, and are beneficial to maintenance, promptly when a cover system is overhauled, can not influence all the other system's operations by mistake.
2) simultaneously, between the equipment of the two poles of the earth (utmost point one, the utmost point two) association very little, do not have the situation of shared signal power supply, in the time of can avoiding a utmost point equipment overhauled, mistake influences another utmost point operation or reduces its reliability.
The beneficial effect of the utility model: the utility model provides new being connected of a kind of DC control protection with dc fields switch auxiliary contact; Can be through the heavily moving quantity demand that satisfies the control protection to position of the switch contact; Adapt to auxiliary contact less situation in the dc fields position of the switch in the engineering, and do not have the situation of shared contact between multipleization of the same protection system; Association is very little between the equipment of the two poles of the earth (utmost point one, the utmost point two), do not have the situation of shared signal power supply, and in the time of can avoiding a utmost point equipment overhauled, mistake influences another utmost point operation or reduces its reliability.
Description of drawings
The heavily moving back of Fig. 1 output contact sketch map.
Embodiment
As shown in Figure 1, be the sketch map of the heavily moving function of contact.
Below in the explanation, the direct current protecting of triple modular redundant overlaps expression with A cover, B cover, C respectively, and the DC control of dualization is overlapped expression with A cover, B respectively.
Only can provide Third Mate's contact to protect to DC control like dc switch, the employing scheme is following:
1) the 1st pair of heavily moving back of actual contact uses for the A cover system of each utmost point control, each utmost point protection;
2) the 2nd pair of heavily moving back of actual contact uses for the B cover system of each utmost point control, each utmost point protection;
3) the 3rd pair of heavily moving back of actual contact uses for the C cover system of each utmost point protection.
Dc switch provide four or five pairs of contacts to dualization configuration or three get two the configuration the direct current protecting system,
The 1st pair of heavily moving back of actual contact uses for the A cover system of each utmost point control, each utmost point protection;
The 2nd pair of heavily moving back of actual contact uses for the B cover system of each utmost point control, each utmost point protection;
The 3rd pair of actual contact uses for the C cover system of the utmost point one protection;
The 4th pair of actual contact uses for the C cover system of the utmost point two protections.
As dc switch only can provide six pairs of contacts to dualization configuration or three get two the configuration the direct current protecting system, the employing scheme is following:
1) the 1st pair of heavily moving back of actual contact uses for the A cover system of the utmost point one protection, the A cover system of control;
2) the 2nd pair of heavily moving back of actual contact uses for the A cover system of the utmost point two protections, the B cover system of control;
3) the 3rd pair of actual contact uses (when the triple modular redundant configuration is adopted in protection) for the B cover system of the utmost point one protection;
4) the 4th pair of actual contact uses (when the triple modular redundant configuration is adopted in protection) for the B cover system of the utmost point two protections;
5) the 5th pair of actual contact uses (when the triple modular redundant configuration is adopted in protection) for the C cover system of the utmost point one protection;
6) the 6th pair of actual contact uses (when the triple modular redundant configuration is adopted in protection) for the C cover system of the utmost point two protections.
Claims (1)
1. the jockey of DC control protection and dc fields switch auxiliary contact; DC transmission system has the utmost point one and 2 two utmost points of the utmost point; Every utmost point has disposed the redundant protective device A of three covers, B and C cover respectively, the utmost point one and the utmost point two configurations two cover control device, more than totally ten protective devices and control device need be used the dc switch auxiliary contact; It is characterized in that for the not enough dc fields switch of the dc switch position auxiliary contact of DC transmission system, independently heavily moving screen be set carry out heavily moving:
When 1) scene has only Third Mate's switch auxiliary contact; All Third Mate's contact is all heavily moving; Export to the cover in the protective device of every utmost point A, B and C cover redundant configuration after every pair of contact is heavily moving, selecting wherein, the heavily moving contact of Second Mate is connected in the two cover control device of the utmost point one and the utmost point two;
When 2) scene has only four pairs or five pairs of contacts, use wherein four pairs of contacts, there have the Second Mate to carry out in these four pairs to be heavily moving, is connected respectively in every utmost point A or the B cover redundancy protection device one pair, also is connected respectively to two cover control device of the utmost point one and the utmost point two simultaneously; Second Mate's contact is linked to the C cover protective device of the utmost point one and the C cover protective device of the utmost point two respectively without overweight moving actual contact in addition;
When 3) scene has only six pairs of contacts; Wherein Second Mate's contact carries out heavily moving; Be connected to A cover protective device and the utmost point one and the utmost point 21 cover control device of the utmost point one after wherein one pair of contact heavily moves; Be connected to the A cover protective device of the utmost point two and the another set of control device of the utmost point one and the utmost point two after another pair is heavily moving, remain four pairs of actual contacts and be connected respectively to the B cover of the utmost point one and the B cover and the C cover protective device of the C cover protective device and the utmost point two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220144965 CN202513571U (en) | 2012-04-06 | 2012-04-06 | Connection device of direct current control devices and protection devices and direct current field switch auxiliary contacts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220144965 CN202513571U (en) | 2012-04-06 | 2012-04-06 | Connection device of direct current control devices and protection devices and direct current field switch auxiliary contacts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202513571U true CN202513571U (en) | 2012-10-31 |
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ID=47066028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220144965 Expired - Lifetime CN202513571U (en) | 2012-04-06 | 2012-04-06 | Connection device of direct current control devices and protection devices and direct current field switch auxiliary contacts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202513571U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107181318A (en) * | 2016-12-20 | 2017-09-19 | 南京南瑞继保电气有限公司 | A kind of extra-high voltage direct-current Control protection system telecontrol communication method |
-
2012
- 2012-04-06 CN CN 201220144965 patent/CN202513571U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107181318A (en) * | 2016-12-20 | 2017-09-19 | 南京南瑞继保电气有限公司 | A kind of extra-high voltage direct-current Control protection system telecontrol communication method |
| CN107181318B (en) * | 2016-12-20 | 2020-01-10 | 南京南瑞继保电气有限公司 | Telecontrol communication method for extra-high voltage direct current control protection system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121031 |