CN110456113A - A kind of plug-in electric current essential safety terminal - Google Patents
A kind of plug-in electric current essential safety terminal Download PDFInfo
- Publication number
- CN110456113A CN110456113A CN201910882440.7A CN201910882440A CN110456113A CN 110456113 A CN110456113 A CN 110456113A CN 201910882440 A CN201910882440 A CN 201910882440A CN 110456113 A CN110456113 A CN 110456113A
- Authority
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- China
- Prior art keywords
- plug
- reed
- contact
- pedestal
- terminal block
- Prior art date
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0416—Connectors, terminals
Abstract
A kind of plug-in electric current essential safety terminal provided by the present application, terminal are set between relay equipment and mutual inductor equipment, comprising: dock connector, stab contact and test plug;Pedestal terminal block is provided on dock connector, pedestal terminal is arranged in a row on dock connector, and one end of pedestal terminal block is continuously connected with by conducting wire and relay equipment, and the other end is connect with mutual inductor equipment, meanwhile pedestal terminal block is movably connected with test plug or stab contact.Plug-in electric current essential safety terminal provided by the present application, pass through the insertion of stab contact or test plug or normal connection or the short circuit of abjection control pedestal terminal block connection line, it can be realized the efficient scene quickly test between primary equipment and secondary device, secondary device, " plug and play ", Field Force and appointed condition are avoided to the influence of cable quality of connection, is had the characteristics that using safely, conveniently, efficiently.
Description
Technical field
This application involves technical field of power systems, and in particular to a kind of plug-in electric current essential safety terminal.
Background technique
In recent years, electric system is whether newly thrown or is run plant stand electric current secondary loop various incipient faults often occur hidden
Suffer from, accident caused by the error action of device such as relay protection or tripping is caused constantly to occur, therefore can throw or run plant stand electricity to new
It flows secondary circuit and carries out the related works such as relay protection.
When substation carries out relay protection related work, there are the protective device risks that accidentally outlet false tripping is run, at this moment
With regard to needing to take corresponding secondary safety measure, needs to release the related secondary circuit of Current Voltage and trip(ping) circuit, disassembling
In process either recovery process, can exist and accidentally touch, restore risk not in place, or restoring mistake.
Therefore, a kind of mode of operation for substituting existing terminal block manual operation wiring and carrying out field-checking, energy are needed
It is enough not contact live terminal, wiring is not changed, preventing error wiring is possible, has the characteristics that using safely, conveniently, efficiently.
Summary of the invention
This application provides plug-in electric current essential safety terminal, the correlation for releasing Current Voltage and trip(ping) circuit is overcome
Secondary circuit can exist and accidentally touch in dismantling process either recovery process, restore risk not in place, or restoring mistake,
It can be realized the efficient scene quickly test between primary equipment and secondary device, secondary device, " plug and play " avoids scene
The influence of personnel and appointed condition to cable quality of connection.
It is as follows that the application solves the technical solution that above-mentioned technical problem is taken:
A kind of plug-in electric current essential safety terminal, the terminal are set between relay equipment and mutual inductor equipment,
It include: dock connector, stab contact and test plug;
Pedestal terminal block is provided on the dock connector, the pedestal terminal is arranged in a row into the dock connector
On, one end of the pedestal terminal block is continuously connected with by conducting wire and relay equipment, and the other end is connect with the mutual inductor equipment,
The pedestal terminal block is movably connected with the test plug or stab contact, and the pedestal terminal block connects the relay protection dress
It sets and is located in the dock connector with one end of mutual inductor equipment, the one end for connecting the stab contact or test plug is located at
Outside the dock connector;
The pedestal terminal block connection line is being controlled just by the insertion or abjection of the stab contact or test plug
Often connection is shorted.
Optionally, the pedestal terminal block includes several pedestal terminals, and each pedestal terminal is internally provided with independence
Reed and independent insertion hole;
The insertion hole is for connecting the stab contact or test plug;
The reed includes the second reed, third reed and two the first reeds, second reed and third reed
It is symmetricly set on the center of the pedestal terminal, second reed is in contact to form third contact with one end of third reed,
The input lead of relay protection device is connected on second reed, the third reed connects the output of the mutual inductor equipment
Conducting wire, wherein input lead, output lead, the second reed, third reed combination third contact form major loop;
Second reed is close to each other with the other end of third reed but does not contact, and forms the second contact;It is described two
First reed is symmetricly set on the outside of second reed and third reed, and described two first reeds are close to each other but not
Contact forms the first contact, and first contact, the second contact and third contact are on the same line.
Optionally, the insertion hole is rectangular test connector.
Optionally, the test plug both ends are respectively equipped with pouring-in test plug and instrument connection row, and middle part position is set
There is buckle, described buckle is provided with baffle on instrument connection row extended spot direction, connection handle is provided between the baffle
Hand;The pouring-in plug is pluggable to be mounted in the pedestal terminal block, and is realized and be electrically connected with instrument connection row;Instrument connection
One end far from pouring-in plug is arranged to be connected with mutual inductor equipment.
Optionally, described to snap connection handle, locking mechanism is set on buckle, and rotating handles control the locking mechanism
It opens and closes, is buckled in pouring-in plug and is installed on the base end period of the day from 11 p.m. to 1 a.m corresponding pedestal terminal block is held in by locking mechanism
On;
It is provided with indicating bit on the side top surface of the baffle, when swing handle makes the indicating bit green of test plug
When, it can normally extract test plug.
The technical scheme provided by the application includes following advantageous effects:
A kind of plug-in electric current essential safety terminal provided by the present application, terminal are set to relay equipment and mutual inductor equipment
Between, comprising: dock connector, stab contact and test plug;Pedestal terminal block, pedestal terminal are provided on dock connector
Row is integrated on dock connector, and one end of pedestal terminal block is continuously connected with by conducting wire and relay equipment, the other end and mutual inductance
The connection of device equipment, meanwhile, pedestal terminal block is movably connected with test plug or stab contact, and pedestal terminal block connection relay protection dress
It sets and is located in dock connector with one end of mutual inductor equipment, the one end for connecting stab contact or test plug is located at pedestal connection
Outside device.Plug-in electric current essential safety terminal provided by the present application is controlled by the insertion or abjection of stab contact or test plug
The normal connection of pedestal terminal block connection line processed or short circuit, realize the automatic sealing-in isolation and test job to secondary circuit,
It can be realized the efficient scene quickly test between primary equipment and secondary device, secondary device, " plug and play " avoids scene
The influence of personnel and appointed condition to cable quality of connection has the characteristics that using safely, conveniently, efficiently.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the application, letter will be made to attached drawing needed in the embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without any creative labor,
It is also possible to obtain other drawings based on these drawings.
Fig. 1 is loop state when secondary current terminal provided by the embodiments of the present application operates normally;
Loop state when Fig. 2 is secondary current terminal regular inspection provided by the embodiments of the present application;
Loop state when Fig. 3 is the secondary current short-circuit of terminals provided by the embodiments of the present application;
Fig. 4 is pedestal terminal structure schematic diagram provided by the embodiments of the present application;
Fig. 5 is stab contact structural schematic diagram provided by the embodiments of the present application;
Fig. 6 is monomer-type test plug structural schematic diagram provided by the embodiments of the present application;
Fig. 7 is monoblock type test plug structural schematic diagram provided by the embodiments of the present application.
Description of symbols: 1- screw fixing port, 2- insertion hole, 3- third reed, the second reed of 4-, the first reed of 5-,
The first contact 6-, the second contact 7-, 8- third contact, the first calibrating terminal of 9-, the second calibrating terminal of 10-, 11- third test lead
Son, the 4th calibrating terminal of 12-, 13- monomer-type plug, 14- buckle, 15- baffle, 17- handle, 18- instrument connection row, 19- injection
Formula test plug.
Specific embodiment
In order to make those skilled in the art more fully understand the technical solution in the application, implement below in conjunction with the application
The technical solution in application embodiment is clearly and completely described in attached drawing in example;Obviously, described embodiment is only
It is a part of the embodiment of the application, instead of all the embodiments.Based on the embodiment in the application, ordinary skill
The model of the application protection all should belong in personnel's every other embodiment obtained without making creative work
It encloses.
The embodiment of the present application provides a kind of plug-in electric current essential safety terminal, the terminal be set to relay equipment with
Between mutual inductor equipment, comprising: dock connector, stab contact and test plug;Connected on stab contact by conductor and conducting wire
It connects.
Wherein, it is provided with pedestal terminal block on dock connector, pedestal terminal is arranged in a row on dock connector, base end
Son row one end be continuously connected with by conducting wire and relay equipment, the other end is connect with mutual inductor equipment, meanwhile, pedestal terminal block and
Test plug or stab contact are movably connected, and one end of pedestal terminal block connection relay equipment and mutual inductor equipment is located at pedestal
In connector, the one end for connecting stab contact or test plug is located at outside dock connector;Pedestal terminal block is filled with relay protection respectively
It sets and the junction of mutual inductor equipment is provided with screw fixing port 1, the installation of pedestal terminal block is fixed for the later period.
By the insertion of stab contact or test plug or abjection control pedestal terminal block connection line it is normal connect or
It is shorted.
The plug-in electric current essential safety terminal provided in the embodiment of the present application passes through inserting for stab contact or test plug
Enter or deviate from the normal connection of control pedestal terminal block connection line or is shorted, when test plug or stab contact are not inserted into,
Circuit major loop is in normal operating conditions, is as shown in Figure 1 secondary current terminal provided by the embodiments of the present application normal operation
When loop state, it can be seen from the figure that mutual inductor equipment and relay equipment are normal, electric current passes through mutual inductor equipment, base end
Son row, relay equipment are finally returned to mutual inductor equipment and are formed into a loop;When needing regular inspection operation, test plug is inserted into base
It is disconnected after secondary circuit is first short when seat terminal block, relay equipment side is isolated with mutual inductor equipment side, as shown in Fig. 2, terminal Ia,
Ian contact disconnects, and terminal Ia, Ian are shorted, and daily protective calibration and transmission can be carried out after all circuit security isolations
Test, while mutual inductor equipment side is shorted, relay equipment side test source is tested by test plug injection device, from
And realize the test job to secondary circuit.
Similarly, when stab contact being inserted into pedestal terminal block, current terminal is shorted, and circuit is interrupted simultaneously, such as Fig. 3 institute
Show, terminal Ia, Ian contact disconnects, and terminal Ia, Ian are shorted, and circuit is interrupted simultaneously, and mutual inductor equipment side is shorted, electric current
It is returned by being shorted part, realizes that the automatic sealing-in to secondary circuit is isolated.
Optionally, pedestal terminal block includes several pedestal terminals, each pedestal terminal be internally provided with independent reed and
Independent insertion hole 2;
Insertion hole 2 is for connecting stab contact or test plug;
It is illustrated in figure 4 pedestal terminal structure schematic diagram provided by the embodiments of the present application, reed includes the second reed 4, the
Three reeds 3 and two the first reeds 5, the second reed 4 are symmetricly set on the center of pedestal terminal, the second spring with third reed 3
Piece 4 is in contact to form third contact 8 with one end of third reed 3, for main Loop Contacts, connects relay protection on the second reed 4
The input lead of equipment, third reed 3 connect the output lead of mutual inductor equipment, wherein input lead, output lead, second
Reed 4, third reed 3 combine third contact 8 to form major loop;
Second reed 4 is close to each other with the other end of third reed 3 but does not contact, and forms the second contact 7, is direct-connected auxiliary
Contact;Two the first reeds 5 are symmetricly set on the outside of the second reed 4 and third reed 3, and two the first reeds 5 mutually lean on
It closely but does not contact, forms the first contact 6, for short circuit bridge joint reed contact, at the first contact 6, the second contact 7 and third contact 8
In on same straight line, the protection contact being made of three-stage reed can cooperate test plug to carry out orderly short circuit and divide
It is disconnected.Meanwhile different bridge joint modes is additionally provided in the embodiment of the present application, bridgeware can be used for the company of the equipotential between different circuit
It connects.By the plug-in type bridge mode of this pre insulated, electrocution-proof protection can satisfy, keep circuit operation safer reliable,
And it is more easily installed, this bridge joint mode can be used for extending the equipotential link in wiring position and circuit.
When test plug or stab contact are not inserted into, circuit major loop is in normal operating conditions, and electric current passes through input
The major loop that conducting wire, output lead, the second reed 4, third reed 3 combine third contact 8 to be formed is in normal operating conditions, mutually
Sensor equipment side and relay equipment are normal, and when by test plug or stab contact insertion pedestal terminal block, Plug contact second is touched
Point 7 or the first contact 6 disconnect third contact 8, and mutual inductor equipment short circuit bridge configuration generation effect is disconnected after secondary circuit is first short,
Relay equipment side is isolated with mutual inductor equipment side, realizes and the test job of secondary circuit and automatic sealing-in is isolated.
In order to match general test plug or stab contact, it is illustrated in figure 5 stab contact provided by the embodiments of the present application
Insertion hole 2 is set rectangular test connector by structural schematic diagram.
The test plug provided in the embodiment of the present application includes monomer test plug, integrated testability plug or short handle test
Plug, is illustrated in figure 6 monomer-type test plug structural schematic diagram provided by the embodiments of the present application, and monomer-type test plug includes
First calibrating terminal 9, the second calibrating terminal 10, third calibrating terminal 11, the 4th calibrating terminal 12 can select at different conditions
Select application, in mutual inductor equipment regular inspection operation, test source can pass through 13 note of monomer-type plug when using monomer test plug
Enter test loop and form loop, while obtaining the current value of measurement point.Wherein, it is illustrated in figure 7 provided by the embodiments of the present application
Monoblock type test plug structural schematic diagram.Monoblock type test plug both ends are respectively equipped with pouring-in test plug and instrument connection row
18, and middle part position is equipped with buckle 14, buckle 14 is arranged to instrument connection is provided with baffle 15 on 18 extended spot directions, between baffle 15
It is provided with connection handle 17;Pouring-in test plug is pluggable to be mounted in pedestal terminal block, and is realized with instrument connection row 18
Electrical connection;Instrument connection arranges 18 one end far from pouring-in test plug and is connected with mutual inductor equipment.
Optionally, 14 connection handle 17 of buckle, buckles and locking mechanism is arranged on 14, and rotating handles 17 control locking mechanism
It opens and closes, buckle 14 is installed on the base end period of the day from 11 p.m. to 1 a.m in pouring-in plug and is held in corresponding pedestal terminal by locking mechanism
On row, realize that locking connection, lock mode locking quickly, lock solid and reliable, behaviour by locking mechanism in the embodiment of the present application
Facilitate, misplaces slotting connection;There is the performance of anti-vibration, coupling mechanism force is big, and the pulling ability of anti-cable is strong, and wiring space is bigger;It is resistance to
High and low temperature, corrosion-resistant, enclosed moisture-resistant and good insulating conduct electricity very well;It is high to contact reliable protection grade, is very suitable to power transformation
It is applied in condition of standing.
Meanwhile indicating bit is provided on the side top surface of baffle 15, indicating bit is divided into red and green indicating bit, works as rotation
When handle 17 keeps the indicating bit of test plug green, test plug can be normally extracted.
Exemplary type, plug-in electric current essential safety terminal provided herein, dock connector is pacified using panel type
The mode of dress can be carried out test loop and be passed through dock connector without cabinet door is opened with test plug or stab contact insertion
It is attached on the inside of panel, upper electrical circuit enters normal operating conditions.Insertion test plug or stab contact, circuit are
It can carry out test job.Test plug can carry out short circuit configuration according to different testing requirements.Handle 17 has self-locking function,
When swing handle 17 makes the indicating bit green of test plug, test plug can be normally extracted.
Exemplary type, lead-sealable actuation transparent cover is used for the security protection of pedestal terminal block front non-testing operations time.
The test that test plug carries out circuit lead-sealable actuation protection cover-cap is not opened then can not be inserted into, what transparent cover can satisfy circuit can
Depending on property.
A kind of plug-in electric current essential safety terminal provided by the embodiments of the present application passes through stab contact or test plug
Insertion or the normal connection of abjection control pedestal terminal block connection line or short circuit, realize that the automatic sealing-in to secondary circuit is isolated
And test job, it can be realized the efficient scene quickly test between primary equipment and secondary device, secondary device, " insert i.e.
With ", Field Force and appointed condition are avoided to the influence of cable quality of connection, are had the characteristics that using safely, conveniently, efficiently.
It should be noted that the terms "include", "comprise" or its any other variant are intended to the packet of nonexcludability
Contain, so that article or equipment including a series of elements not only include those elements, but also including not arranging clearly
Other element out, or further include for elements inherent to such a process, method, article, or device.Not more
In the case where limitation, the element that is limited by sentence "including a ...", it is not excluded that including process, the side of the element
There is also other identical elements in method, article or equipment.
The above is only the specific embodiment of the application, is made skilled artisans appreciate that or realizing this Shen
Please.Various modifications to these embodiments will be apparent to one skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the application.Therefore, the application
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
It should be understood that the application is not limited to the content for being described above and being shown in the accompanying drawings, and can
To carry out various modifications and change without departing from the scope.Scope of the present application is only limited by the accompanying claims.
Claims (5)
1. a kind of plug-in electric current essential safety terminal, which is characterized in that the terminal is set to relay equipment and sets with mutual inductor
Between standby,
It include: dock connector, stab contact and test plug;
It is provided with pedestal terminal block on the dock connector, the pedestal terminal is arranged in a row on the dock connector, institute
The one end for stating pedestal terminal block is continuously connected with by conducting wire and relay equipment, and the other end is connect with the mutual inductor equipment, described
Pedestal terminal block is movably connected with the test plug or stab contact, and the pedestal terminal block connect the relay equipment and
One end of mutual inductor equipment is located in the dock connector, connects one end of the stab contact or test plug positioned at described
Outside dock connector;
Normally connecting for the pedestal terminal block connection line is controlled by the insertion or abjection of the stab contact or test plug
It connects or is shorted.
2. plug-in electric current essential safety terminal according to claim 1, which is characterized in that the pedestal terminal block includes
Several pedestal terminals, each pedestal terminal are internally provided with independent reed and independent insertion hole;
The insertion hole is for connecting the stab contact or test plug;
The reed includes the second reed, third reed and two the first reeds, and second reed and third reed are symmetrical
The center of the pedestal terminal is set, and second reed is in contact to form third contact with one end of third reed, described
The input lead of relay protection device is connected on second reed, the output that the third reed connects the mutual inductor equipment is led
Line, wherein input lead, output lead, the second reed, third reed combination third contact form major loop;
Second reed is close to each other with the other end of third reed but does not contact, and forms the second contact;Described two first
Reed is symmetricly set on the outside of second reed and third reed, and described two first reeds are close to each other but do not connect
Touching forms the first contact, and first contact, the second contact and third contact are on the same line.
3. plug-in electric current essential safety terminal according to claim 2, which is characterized in that the insertion hole is rectangular survey
Try connector.
4. plug-in electric current essential safety terminal according to claim 1, which is characterized in that the test plug both ends point
Not She You pouring-in test plug and instrument connection row, and middle part position be equipped with buckle, it is described buckle to the instrument connection arrange extend
Prescription has set up baffle, and connection handle is provided between the baffle;The pouring-in plug is pluggable to be mounted on institute
It states in pedestal terminal block, and realizes and be electrically connected with instrument connection row;Instrument connection is arranged one end far from pouring-in plug and is set with mutual inductor
It is standby to be connected.
5. plug-in electric current essential safety terminal according to claim 4, which is characterized in that it is described to snap connection handle,
Locking mechanism is set on buckle, and rotating handles control the opening and closing of the locking mechanism, are buckled in pouring-in plug installation
It is held in corresponding pedestal terminal block in the base end period of the day from 11 p.m. to 1 a.m by locking mechanism;
It is provided with indicating bit on the side top surface of the baffle, it, can when swing handle makes the indicating bit green of test plug
Normally to extract test plug.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201910882440.7A CN110456113B (en) | 2019-09-18 | 2019-09-18 | Plug-in current intrinsic safety terminal |
Applications Claiming Priority (1)
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CN201910882440.7A CN110456113B (en) | 2019-09-18 | 2019-09-18 | Plug-in current intrinsic safety terminal |
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CN110456113A true CN110456113A (en) | 2019-11-15 |
CN110456113B CN110456113B (en) | 2021-10-08 |
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CN201910882440.7A Active CN110456113B (en) | 2019-09-18 | 2019-09-18 | Plug-in current intrinsic safety terminal |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
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CN112444701A (en) * | 2020-11-25 | 2021-03-05 | 云南电网有限责任公司电力科学研究院 | Secondary circuit detection device and circuit operation intrinsic safety method |
CN112467653A (en) * | 2020-11-25 | 2021-03-09 | 云南电网有限责任公司电力科学研究院 | Terminal box |
CN112505453A (en) * | 2020-11-25 | 2021-03-16 | 云南电网有限责任公司电力科学研究院 | Terminal box testing method and terminal box |
CN112510392A (en) * | 2020-11-25 | 2021-03-16 | 云南电网有限责任公司电力科学研究院 | Safety measure isolation device |
CN112531442A (en) * | 2020-11-25 | 2021-03-19 | 云南电网有限责任公司电力科学研究院 | Method for manufacturing safety device of terminal |
CN113587969A (en) * | 2021-06-18 | 2021-11-02 | 大唐水电科学技术研究院有限公司 | Integrated sensor mounting and wiring method for hydroelectric generating set stability test |
CN114256700A (en) * | 2021-12-16 | 2022-03-29 | 云南电网有限责任公司电力科学研究院 | Current terminal |
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
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CN112444701A (en) * | 2020-11-25 | 2021-03-05 | 云南电网有限责任公司电力科学研究院 | Secondary circuit detection device and circuit operation intrinsic safety method |
CN112467653A (en) * | 2020-11-25 | 2021-03-09 | 云南电网有限责任公司电力科学研究院 | Terminal box |
CN112505453A (en) * | 2020-11-25 | 2021-03-16 | 云南电网有限责任公司电力科学研究院 | Terminal box testing method and terminal box |
CN112510392A (en) * | 2020-11-25 | 2021-03-16 | 云南电网有限责任公司电力科学研究院 | Safety measure isolation device |
CN112531442A (en) * | 2020-11-25 | 2021-03-19 | 云南电网有限责任公司电力科学研究院 | Method for manufacturing safety device of terminal |
CN112467653B (en) * | 2020-11-25 | 2022-04-12 | 云南电网有限责任公司电力科学研究院 | Terminal box |
CN113587969A (en) * | 2021-06-18 | 2021-11-02 | 大唐水电科学技术研究院有限公司 | Integrated sensor mounting and wiring method for hydroelectric generating set stability test |
CN114256700A (en) * | 2021-12-16 | 2022-03-29 | 云南电网有限责任公司电力科学研究院 | Current terminal |
CN114256700B (en) * | 2021-12-16 | 2023-10-13 | 云南电网有限责任公司电力科学研究院 | Current terminal |
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