CN207624392U - A kind of reactor shutdown breaker test circuit - Google Patents
A kind of reactor shutdown breaker test circuit Download PDFInfo
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- CN207624392U CN207624392U CN201721674800.7U CN201721674800U CN207624392U CN 207624392 U CN207624392 U CN 207624392U CN 201721674800 U CN201721674800 U CN 201721674800U CN 207624392 U CN207624392 U CN 207624392U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The utility model discloses a kind of reactor shutdown breaker test circuits, are related to testing field, including test switching branches, extension branch and test branch, the test switching branches, which include concatenated test, allows switch SA and relay K；The extension branch includes three groups of shutdown circuit-breaker status expanded circuits of parallel connection, and every group of shutdown circuit-breaker status expanded circuit includes concatenated auxiliary contact switch HS and extension relay KA；The test branch includes 3 testing and control branches in parallel, and every testing and control branch includes that concatenated separating brake testing button SB, busy relay KAU, relay contact switch K_S and 2 groups of extension relay contact switch KA_S, every group of extension relay contact switch KA_S only correspond to an extension relay KA.The utility model can ensure that stablizing for shutdown breaker test carries out.
Description
Technical field
The utility model is related to testing fields, and in particular to a kind of reactor shutdown breaker test circuit.
Background technology
Shutdown breaker is the important component that reactor protection system executes shutdown function in nuclear power station, is used for autogamy in future
The power supply of electric system is supplied to rod control system.When opening heap and normal reactor operation, shutdown breaker closing, control rod carries
It rises, electrical source of power is switched on needed for underthrust and holding control stick position.In reactor normal shutdown and emergency shut-down, shutdown
Breaker disconnects, and control rod drive mechanism runs out of steam power supply, and control rod is by its own gravity quick insertion reactor core, to realize
The safety of reactor is closed down.The main circuit connection form of common reactor trip breaker cabinet mainly use 1/2 form, 2/3 form and
2/4 form.The reactor trip breaker cabinet of 2/3 form takes the shutdown logic of " two from three ", is made of 6 breakers, structure shape
Formula is as shown in Fig. 1, and wherein A1, A2 are A group breakers, and B1, B2 are B group breakers, and C1, C2 are C group breakers.
In general, to check the availability of shutdown breaker, need to periodically be tested according to certain period.Carrying out shutdown
When circuit-breaker testing, typically one group or single breaker are tested, for the shutdown breaker of 2/3 form, if
Certain group shutdown breaker test after the completion of, be not restored in the logic sequence of reactor trip breaker cabinet in time, or restore less than
Position, carries out the test in next channel or the maloperation due to operator, will trigger spurious shutdown again at this time.
Utility model content
In view of the deficiencies in the prior art, the purpose of this utility model is to provide a kind of reactor shutdown breakers
Test circuit can ensure that stablizing for shutdown breaker test carries out.
To achieve the above objectives, the technical scheme adopted by the utility model is that, including：
Switching branches are tested, the test switching branches, which include concatenated test, allows switch SA and relay K；
Extend branch, three groups of shutdown circuit-breaker status expanded circuits for extending branch and including in parallel, and every group of shutdown
Circuit-breaker status expanded circuit includes concatenated auxiliary contact switch HS and extension relay KA；
Branch is tested, the test branch includes 3 testing and control branches in parallel, and every testing and control branch wraps
Include concatenated separating brake testing button SB, busy relay KAU, relay contact switch K_S and 2 groups of extension relay contact switch
KA_S, every group of extension relay contact switch KA_S only correspond to an extension relay KA, and each extension relay KA is controlled
Make and only control 2 groups of extension relay contact switch KA_S, and 2 groups of extension relay contacts of each extension relay KA connections
Switch KA_S is located at different testing and control branches, and the separating brake testing button SB in every testing and control branch and two other
Testing and control branch is connected；
Wherein, in parallel between the test switching branches, extension branch and test branch, and each busy relay KAU
One group of shutdown breaker is controlled, the relay K is connected and is opened and closed while controlling all relay contact switch K_S.
Based on the above technical solution, every group of shutdown breaker includes 2 shutdown breakers, and each shutdown is disconnected
Road device includes undervoltage trip coil, and the busy relay KAU is for controlling the dead electricity of undervoltage trip coil to trigger shutdown
The dropout of breaker.
Based on the above technical solution, three groups of shutdown circuit-breaker status expanded circuits are respectively first group of shutdown open circuit
Device conditional extensions circuit, second group of shutdown circuit-breaker status expanded circuit and third group shutdown circuit-breaker status expanded circuit, and
Every group of shutdown circuit-breaker status expanded circuit includes 2 shutdown circuit-breaker status expanded circuits in parallel, and every shutdown is disconnected
Road device conditional extensions circuit includes concatenated auxiliary contact switch HS and extension relay KA, first group of shutdown circuit-breaker status
2 shutdown circuit-breaker status expanded circuits in expanded circuit are respectively that the first shutdown circuit-breaker status expanded circuit and second stop
Heap circuit-breaker status expanded circuit, 2 shutdown circuit-breaker status extension electricity in second group of shutdown circuit-breaker status expanded circuit
Road is respectively third shutdown circuit-breaker status expanded circuit and the 4th shutdown circuit-breaker status expanded circuit, the shutdown open circuit of third group
2 articles of shutdown circuit-breaker status expanded circuits in device conditional extensions circuit be respectively the 5th shutdown circuit-breaker status expanded circuit and
6th shutdown circuit-breaker status expanded circuit.
Based on the above technical solution, 3 testing and control branches are respectively the first testing and control branch, the second test
Controlling brancher and third testing and control branch, every group of extension relay contact switch KA_S include 2 extension relay contacts
Switch KA_S.
Based on the above technical solution,
The extension relay of the 5th shutdown circuit-breaker status expanded circuit and the 6th shutdown circuit-breaker status expanded circuit
Device KA controls 2 extension relay contacts in the first testing and control branch in one group of extension relay contact switch KA_S respectively
Switch KA_S, the extension relay KA of third shutdown circuit-breaker status expanded circuit and the 4th shutdown circuit-breaker status expanded circuit
2 in the first testing and control branch in another group of extension relay contact switch KA_S extension relay contacts are controlled respectively to open
Close KA_S；
The extension relay of the 5th shutdown circuit-breaker status expanded circuit and the 6th shutdown circuit-breaker status expanded circuit
Device KA controls 2 extension relay contacts in the second testing and control branch in one group of extension relay contact switch KA_S respectively
Switch KA_S, the extension relay KA of the first shutdown circuit-breaker status expanded circuit and the second shutdown circuit-breaker status expanded circuit
2 in the second testing and control branch in another group of extension relay contact switch KA_S extension relay contacts are controlled respectively to open
Close KA_S；
The extension relay of the third shutdown circuit-breaker status expanded circuit and the 4th shutdown circuit-breaker status expanded circuit
Device KA controls 2 extension relay contacts in third testing and control branch in one group of extension relay contact switch KA_S respectively
Switch KA_S, the extension relay KA of the first shutdown circuit-breaker status expanded circuit and the second shutdown circuit-breaker status expanded circuit
2 extension relay contacts in third testing and control branch in another group of extension relay contact switch KA_S are controlled respectively to open
Close KA_S.
Based on the above technical solution, 2 are parallel on the relay K for showing whether shutdown breaker is thrown
Enter the test indicator light L of measurement condition.
Based on the above technical solution, it is parallel on each busy relay KAU for showing busy relay
The test indicator light L of KAU energized states.
Compared with prior art, the utility model has the advantage of：
(1) use extension relay KA control testing and control branch road extension on shutdown circuit-breaker status expanded circuit after
The folding of appliance contact switch KA_S, the mutual logical interlock of testing and control branch of each group shutdown breaker to be tested, every time
It is only capable of testing one group of shutdown breaker, effectively prevent maloperation and close two groups of shutdown breakers and reactor is caused to stop
Heap.
(2) setting test allows switch SA to separate two kinds of operating modes of the test of shutdown breaker and operation, is reacting
Normal operating phase is pushed away, the test circuit of the utility model will not generate any influence, reliability to the operation of shutdown breaker
It is high.
(3) test indicator light L is equipped on relay K and busy relay KAU, for the progress to current test job
Corresponding prompt, improves the reliability of shutdown breaker test.
(4) input and output side of the utility model test circuit passes through the control electricity of relay K and shutdown breaker
Road keeps apart, and meets the insulation request of protection system design.
Description of the drawings
Fig. 1 is the structural schematic diagram of the shutdown breaker of 2/3 forms of protection；
Fig. 2 is a kind of structural schematic diagram of reactor shutdown breaker test circuit of the utility model.
Specific implementation mode
The utility model is described in further detail below in conjunction with attached drawing.
The utility model provides a kind of reactor shutdown breaker test circuit, disconnected for the shutdown to 2/3 forms of protection
Road device cabinet is tested, and the reactor trip breaker cabinet of 2/3 forms of protection includes three groups of shutdown breakers, when in three groups of shutdown breakers
When at least 2 groups of shutdown breakers are in gate-dividing state, the control rod drive mechanism pushed away is reacted at this time and is run out of steam power supply, control
Stick is by its own gravity quick insertion reactor core, to which reactor is closed down, achievees the purpose that protection, thus to shutdown breaker into
When row experiment, it is only capable of carrying out separating brake test to one group of shutdown breaker in three groups of shutdown breakers each time, in addition stops for two groups
Heap breaker is necessary for "on" position, the shutdown that reaction not so will be caused to push away.
Shown in Figure 2, the reactor shutdown breaker test circuit of the utility model includes test switching branches, extension
Branch and test branch, and test switching branches, extension branch and test in parallel, switching branches, controlling brancher and survey between branch
Try two termination electricity of branch.
Test switching branches, which include concatenated test, allows switch SA and relay K, controlling brancher to include three groups of parallel connection
Shutdown circuit-breaker status expanded circuit, and every group of shutdown circuit-breaker status expanded circuit includes concatenated auxiliary contact switch HS
With extension relay KA, test branch includes 3 testing and control branches in parallel, and every testing and control branch includes series connection
Separating brake testing button SB, busy relay KAU, relay contact switch K_S and 2 groups of extension relay contact switch KA_S,
Every group of extension relay contact switch KA_S only connects an extension relay KA, and each extension relay KA is all connected with and only
Connect 2 groups of extension relay contact switch KA_S, and 2 groups of extension relay contact switch of each extension relay KA connections
KA_S is located at different testing and control branches.Each busy relay KAU controls one group of shutdown breaker, relay K connections
And it is opened and closed while controlling all relay contact switch K_S.Separating brake testing button SB in every testing and control branch with it is another
Outer two testing and control branches be connected, formed between each separating brake testing button SB it is chain, when some separating brake testing button SB is pressed
When, the testing and control branch where controlling separating brake testing button SB is connected, and is controlled other 2 testing and control branches and disconnected,
For the realization method of the process, corresponding switch can be set on other testing and control branch road, as separating brake testing button SB
When pressing, the respective switch for controlling the setting of other testing and control branch roads disconnects, and it is same to further avoid 2 testing and control branches
When connect.
Specifically, every group of shutdown breaker includes 2 shutdown breakers, and each shutdown breaker includes under-voltage de-
Fastening wire circle, busy relay KAU trigger the dropout of shutdown breaker for controlling undervoltage trip coil dead electricity, and three groups of shutdowns are disconnected
Road device conditional extensions circuit is respectively first group of shutdown circuit-breaker status expanded circuit, second group of shutdown circuit-breaker status extension electricity
Road and third group shutdown circuit-breaker status expanded circuit, every group of shutdown circuit-breaker status expanded circuit correspond to one group of shutdown open circuit
Device, the auxiliary contact switch HS and corresponding group of shutdown breaker in every group of shutdown circuit-breaker status expanded circuit are corresponding.
Every group of shutdown circuit-breaker status expanded circuit includes 2 shutdown circuit-breaker status expanded circuits in parallel, and every
Shutdown circuit-breaker status expanded circuit includes concatenated auxiliary contact switch HS and extension relay KA, and first group of shutdown is disconnected
2 shutdown circuit-breaker status expanded circuits in the device conditional extensions circuit of road are respectively the first shutdown circuit-breaker status expanded circuit
With the second shutdown circuit-breaker status expanded circuit, 2 shutdown breaker shapes in second group of shutdown circuit-breaker status expanded circuit
State expanded circuit is respectively third shutdown circuit-breaker status expanded circuit and the 4th shutdown circuit-breaker status expanded circuit, third group
2 articles of shutdown circuit-breaker status expanded circuits in shutdown circuit-breaker status expanded circuit are respectively that the 5th shutdown circuit-breaker status expands
Open up circuit and the 6th shutdown circuit-breaker status expanded circuit.
3 testing and control branches are respectively the first testing and control branch, the second testing and control branch and third testing and control
Branch, every group of extension relay contact switch KA_S include 2 extension relay contact switch KA_S.Every testing and control branch
Road is for corresponding to and controlling one group of shutdown breaker.
The extension relay KA of 5th shutdown circuit-breaker status expanded circuit and the 6th shutdown circuit-breaker status expanded circuit
2 extension relay contact switch in the first testing and control branch in one group of extension relay contact switch KA_S are controlled respectively
The extension relay KA difference of KA_S, third shutdown circuit-breaker status expanded circuit and the 4th shutdown circuit-breaker status expanded circuit
Control 2 extension relay contact switch in the first testing and control branch in another group of extension relay contact switch KA_S
KA_S；The extension relay KA difference of 5th shutdown circuit-breaker status expanded circuit and the 6th shutdown circuit-breaker status expanded circuit
Control 2 extension relay contact switch KA_ in the second testing and control branch in one group of extension relay contact switch KA_S
The extension relay KA of S, the first shutdown circuit-breaker status expanded circuit and the second shutdown circuit-breaker status expanded circuit is controlled respectively
Make 2 extension relay contact switch KA_ in the second testing and control branch in another group of extension relay contact switch KA_S
S；The extension relay KA of third shutdown circuit-breaker status expanded circuit and the 4th shutdown circuit-breaker status expanded circuit is controlled respectively
2 extension relay contact switch KA_S in third testing and control branch processed in one group of extension relay contact switch KA_S,
The extension relay KA of first shutdown circuit-breaker status expanded circuit and the second shutdown circuit-breaker status expanded circuit is controlled respectively
2 extension relay contact switch KA_S in third testing and control branch in another group of extension relay contact switch KA_S.
Logical interlock is used between each test branch, when needing to test shutdown breaker, being closed test allows
Switch SA, at this time relay K obtain electric, relay K corresponds to the relay contact switch K_S of 3 testing and control branch roads of control
It is all closed, relay K is equivalent to master switch, and 2 are parallel on relay K for showing whether shutdown breaker puts into test
2 test indicator light L on test the indicator light L, relay K of operating mode are located at shutdown breaker test cell and master control
Platform, after relay K obtains electric, 2 test indicator light L on relay K are lighted, and indicate that shutdown breaker puts into measurement condition,
Staff is prompted.
When testing one group of shutdown breaker, the auxiliary on the corresponding shutdown circuit-breaker status expanded circuit of the group
Contact switch HS is off-state, and in addition the auxiliary contact switch HS on 2 shutdown circuit-breaker status expanded circuits is closed form
State, such as the corresponding shutdown circuit-breaker status expanded circuit of shutdown breaker currently tested is first group of shutdown circuit-breaker status
Expanded circuit, then auxiliary contact on the first shutdown circuit-breaker status expanded circuit and the second shutdown circuit-breaker status expanded circuit
Switch HS is off-state, third shutdown circuit-breaker status expanded circuit, the 4th shutdown circuit-breaker status expanded circuit, the 5th
Auxiliary contact switch HS on shutdown circuit-breaker status expanded circuit and the 6th shutdown circuit-breaker status expanded circuit is to be closed
State, the extension relay KA on the first shutdown circuit-breaker status expanded circuit and the second shutdown circuit-breaker status expanded circuit is not
Must be electric, therefore KA pairs of relay is extended on the first shutdown circuit-breaker status expanded circuit and the second shutdown circuit-breaker status expanded circuit
The extension relay contact switch KA_S answered is off-state, third shutdown circuit-breaker status expanded circuit, the 4th shutdown open circuit
Extension on device conditional extensions circuit, the 5th shutdown circuit-breaker status expanded circuit and the 6th shutdown circuit-breaker status expanded circuit
Relay KA obtains electric, and third shutdown circuit-breaker status expanded circuit, the 4th shutdown circuit-breaker status expanded circuit, the 5th shutdown are disconnected
The corresponding extension relays of extension relay KA on road device conditional extensions circuit and the 6th shutdown circuit-breaker status expanded circuit
Contact switch KA_S is closed state, so it is always off-state that, which necessarily there are 2 testing and control branches at quarter, therefore presses another 1
The separating brake testing button SB of testing and control branch road, the connection of this testing and control branch are corresponding to this testing and control branch
One group of shutdown breaker is tested, and the separating brake testing button SB of this testing and control branch road, this testing and control branch are pressed
The busy relay KAU of road obtain it is electric, under the control of busy relay KAU, in corresponding one group of shutdown breaker owe
Tripping coil dead electricity shutdown circuit breaker tripping is pressed, to complete the separating brake test of one group of shutdown breaker.When one group of shutdown of completion
The test of breaker, when carrying out the test of next group of shutdown breaker, the auxiliary on all shutdown circuit-breaker status expanded circuits
Contact switch HS is closed.After all shutdown breakers are completed, disconnecting test allows switch SA, relay K dead electricity, relay
The corresponding all relay contact switch K_S of device K are disconnected.
Therefore the test logic of the utility model reactor shutdown breaker test circuit meets condition is：Test allows to switch
SA is closed, the auxiliary contact switch HS on one group of shutdown circuit-breaker status expanded circuit is disconnected, other two groups of shutdown breaker shapes
Auxiliary contact switch HS on state expanded circuit is closed and current shutdown breaker to be tested corresponds to testing and control branch road
Separating brake testing button SB is closed, i.e., one group of shutdown breaker could be tested by meeting above-mentioned condition simultaneously, even if otherwise pressing
Lower separating brake testing button SB, busy relay KAU will not obtain electric, and shutdown breaker will not separating brake.When test circuit designs,
The possibility for considering human-equation error ensures that primary is tested one group of shutdown breaker provided with logical interlock device,
Meanwhile operation and test selecting switch are set, operation and measurement condition are separated, by test circuit to shutdown breaker
The influence of normal operation minimizes, and improves the safety of test.
Certainly, the test thought of the utility model can be applied to the test of the reactor trip breaker cabinet of 2/4 forms of protection.
The reactor shutdown breaker test circuit of the utility model, uses the expansion on shutdown circuit-breaker status expanded circuit
Open up the folding of relay KA control testing and control branch road extension relay contact switch KA_S, each group shutdown open circuit to be tested
The mutual logical interlock of testing and control branch of device is only capable of testing one group of shutdown breaker every time, effectively prevent maloperation
And it closes two groups of shutdown breakers and causes reactor shutdown；Simultaneously be arranged test allow switch SA by the test of shutdown breaker with
Two kinds of operating modes of operation separate, and therefore, push away normal operating phase in reaction, the test circuit of the utility model will not be to shutdown
The operation of breaker generates any influence, and reliability is high；Test indicator light L is equipped on relay K and busy relay KAU,
It is accordingly prompted for the progress to current test job；The input and output side of the utility model test circuit passes through relay
The control circuit of K and shutdown breaker are kept apart, and the insulation request of protection system design is met；And the test of the utility model
Circuit can use independent power supply power supply, modularized design that can also be removed test circuit even if normal operating phase, first
Row is checked, it is ensured that the availability of test circuit.
The utility model is not limited to the above embodiment, for those skilled in the art, not
Under the premise of being detached from the utility model principle, several improvements and modifications can also be made, these improvements and modifications are also considered as this reality
Within novel protection domain.The content not being described in detail in this specification belongs to well known to professional and technical personnel in the field
The prior art.
Claims (7)
1. a kind of reactor shutdown breaker test circuit, is tested, institute for the reactor trip breaker cabinet to 2/3 forms of protection
It includes three groups of shutdown breakers to state reactor trip breaker cabinet, which is characterized in that including：
Switching branches are tested, the test switching branches, which include concatenated test, allows switch SA and relay K；
Branch is extended, the extension branch includes three groups of shutdown circuit-breaker status expanded circuits of parallel connection, and every group of shutdown is breaking
Device conditional extensions circuit includes concatenated auxiliary contact switch HS and extension relay KA；
Branch is tested, the test branch includes 3 testing and control branches in parallel, and every testing and control branch includes string
Separating brake testing button SB, busy relay KAU, relay contact switch K_S and the 2 groups of extension relay contact switch KA_ of connection
S, every group of extension relay contact switch KA_S only correspond to an extension relay KA, and each extension relay KA is controlled simultaneously
Only control 2 groups of extension relay contact switch KA_S, and 2 groups of extension relay contact switch of each extension relay KA connections
KA_S is located at different testing and control branches, and the separating brake testing button SB in every testing and control branch is tested with two other
Controlling brancher is connected；
Wherein, in parallel between the test switching branches, extension branch and test branch, and the KAU controls of each busy relay
One group of shutdown breaker, the relay K are connected and are opened and closed while controlling all relay contact switch K_S.
2. a kind of reactor shutdown breaker test circuit as described in claim 1, it is characterised in that：Every group of shutdown breaker
Include 2 shutdown breakers, and each shutdown breaker includes undervoltage trip coil, the busy relay KAU is used for
The dead electricity of undervoltage trip coil is controlled to trigger the dropout of shutdown breaker.
3. a kind of reactor shutdown breaker test circuit as claimed in claim 2, it is characterised in that：Three groups of shutdown breakers
Conditional extensions circuit be respectively first group of shutdown circuit-breaker status expanded circuit, second group of shutdown circuit-breaker status expanded circuit and
Third group shutdown circuit-breaker status expanded circuit, and every group of shutdown circuit-breaker status expanded circuit includes 2 shutdowns in parallel
Circuit-breaker status expanded circuit, and every shutdown circuit-breaker status expanded circuit includes concatenated auxiliary contact switch HS and expansion
Relay KA is opened up, 2 articles of shutdown circuit-breaker status expanded circuits in first group of shutdown circuit-breaker status expanded circuit are respectively the
One shutdown circuit-breaker status expanded circuit and the second shutdown circuit-breaker status expanded circuit, second group of shutdown circuit-breaker status extension
2 articles of shutdown circuit-breaker status expanded circuits in circuit are respectively that third shutdown circuit-breaker status expanded circuit and the 4th shutdown are disconnected
Road device conditional extensions circuit, 2 shutdown circuit-breaker status expanded circuits point in third group shutdown circuit-breaker status expanded circuit
It Wei not the 5th shutdown circuit-breaker status expanded circuit and the 6th shutdown circuit-breaker status expanded circuit.
4. a kind of reactor shutdown breaker test circuit as claimed in claim 3, it is characterised in that：3 testing and control branch
Road is respectively the first testing and control branch, the second testing and control branch and third testing and control branch, and every group of extension relay touches
Point switch KA_S includes 2 extension relay contact switch KA_S.
5. a kind of reactor shutdown breaker test circuit as claimed in claim 4, it is characterised in that：
The extension relay KA of the 5th shutdown circuit-breaker status expanded circuit and the 6th shutdown circuit-breaker status expanded circuit
2 extension relay contact switch in the first testing and control branch in one group of extension relay contact switch KA_S are controlled respectively
The extension relay KA difference of KA_S, third shutdown circuit-breaker status expanded circuit and the 4th shutdown circuit-breaker status expanded circuit
Control 2 extension relay contact switch in the first testing and control branch in another group of extension relay contact switch KA_S
KA_S；
The extension relay KA of the 5th shutdown circuit-breaker status expanded circuit and the 6th shutdown circuit-breaker status expanded circuit
2 extension relay contact switch in the second testing and control branch in one group of extension relay contact switch KA_S are controlled respectively
The extension relay KA difference of KA_S, the first shutdown circuit-breaker status expanded circuit and the second shutdown circuit-breaker status expanded circuit
Control 2 extension relay contact switch in the second testing and control branch in another group of extension relay contact switch KA_S
KA_S；
The extension relay KA of the third shutdown circuit-breaker status expanded circuit and the 4th shutdown circuit-breaker status expanded circuit
2 extension relay contact switch in third testing and control branch in one group of extension relay contact switch KA_S are controlled respectively
The extension relay KA difference of KA_S, the first shutdown circuit-breaker status expanded circuit and the second shutdown circuit-breaker status expanded circuit
Control 2 extension relay contact switch in third testing and control branch in another group of extension relay contact switch KA_S
KA_S。
6. a kind of reactor shutdown breaker test circuit as described in claim 1, it is characterised in that：On the relay K
2 are parallel with for showing whether shutdown breaker puts into the test indicator light L of measurement condition.
7. a kind of reactor shutdown breaker test circuit as described in claim 1, it is characterised in that：Each busy relay
The test indicator light L for showing busy relay KAU energized states is parallel on KAU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721674800.7U CN207624392U (en) | 2017-12-04 | 2017-12-04 | A kind of reactor shutdown breaker test circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721674800.7U CN207624392U (en) | 2017-12-04 | 2017-12-04 | A kind of reactor shutdown breaker test circuit |
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| Publication Number | Publication Date |
|---|---|
| CN207624392U true CN207624392U (en) | 2018-07-17 |
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ID=62825514
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| CN201721674800.7U Active CN207624392U (en) | 2017-12-04 | 2017-12-04 | A kind of reactor shutdown breaker test circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108053899A (en) * | 2017-12-04 | 2018-05-18 | 中国船舶重工集团公司第七〇九研究所 | A kind of reactor shutdown breaker test circuit |
-
2017
- 2017-12-04 CN CN201721674800.7U patent/CN207624392U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108053899A (en) * | 2017-12-04 | 2018-05-18 | 中国船舶重工集团公司第七〇九研究所 | A kind of reactor shutdown breaker test circuit |
| CN108053899B (en) * | 2017-12-04 | 2024-05-03 | 中国船舶重工集团公司第七一九研究所 | Reactor shutdown circuit breaker test circuit |
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