CN213340189U - Five-prevention interlocking device for bus side three-station switch ring main unit contact scheme - Google Patents
Five-prevention interlocking device for bus side three-station switch ring main unit contact scheme Download PDFInfo
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- CN213340189U CN213340189U CN202022702084.7U CN202022702084U CN213340189U CN 213340189 U CN213340189 U CN 213340189U CN 202022702084 U CN202022702084 U CN 202022702084U CN 213340189 U CN213340189 U CN 213340189U
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Abstract
The utility model discloses a five-prevention interlocking device for a bus side three-station switch ring main unit connection scheme, which comprises a box body, a worm bolt, a No. 1 station grounding bayonet lock, a No. 2 station grounding bayonet lock, a No. 1 station isolation bayonet lock and a No. 2 station isolation bayonet lock; the worm bolt rotates in the box body or moves up and down; the worm bolt is provided with a No. 1 grounding notch, a No. 2 grounding notch, a No. 1 isolating notch and a No. 2 isolating notch which are respectively used for inserting corresponding four clamping pins; the No. 1 grounding notch and the No. 2 grounding notch are arranged on the left side of the worm bolt, and the No. 1 isolating notch and the No. 2 isolating notch are arranged on the right side of the worm bolt; a notch is arranged on one side of the worm bolt, when the notch rotates to one side of the corresponding clamping pin, the clamping pin on the other side is inserted into the notch, and when the corresponding switch is in a brake-off state, the worm bolt is limited from moving the notch; a zipper is arranged corresponding to each bayonet lock. The safety of line grounding can be ensured.
Description
Technical Field
The utility model relates to an electrical equipment technical field, in particular to a five prevent interlock that is used for three station switch looped netowrk cabinet contact schemes of bus side.
Background
In the scheme of a network distribution of the ring main unit, a circuit breaker unit with three-station isolation and grounding switches and an isolation unit without the circuit breaker switch are connected in one path, and the configuration mode is common.
In '12 kilovolt ring main unit (box) standardized design customization scheme' of 2019 national grid company, an equipment scheme of a three-station switch at a bus side is added. As shown in fig. 6, the difference between this scheme and the original line-side three-position switching scheme is represented by the closing sequence of the grounding switch, and the quint interlock specifically requires that the operation of removing the cable chamber door must be executable under the switch grounding state.
The line of the line side three-station connection scheme is shown in fig. 7, if a cable chamber door is taken down, a breaker switch is switched on and a grounding switch is switched on in a switching-off state; as shown in fig. 8, if a cable chamber door is taken down, the grounding switch is first closed, and the switch of the closing circuit breaker is still operated, so that a requirement for a double interlock function is added. This requires engineers to retrofit the latching scheme of the bus-side three-position switch.
For a bus side three-station isolating switch, the three-station isolating switch comprises a No. 1 three-station switch (serial number), a No. 2 three-station switch (serial number) and a breaker switch (serial number), wherein the breaker switch is located in the middle of a circuit. Whether the whole line is connected or grounded, the circuit breaker switch is needed to be switched on. And, when must guarantee that two three-position switches are in same state (same isolation or same ground connection), the circuit breaker switch just can close a floodgate, otherwise will appear ground connection short circuit fault.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides an aim at provides a five prevent interlock that is used for three station switch looped netowrk cabinet contact schemes of bus side can guarantee that circuit breaker switch just can close a floodgate when two three station switches are in same state, has guaranteed the security of circuit ground connection.
The embodiment of the utility model provides a five prevent interlock that is used for three station switch looped netowrk cabinet contact schemes of bus side, it includes box body, worm bolt, No. 1 station ground connection bayonet lock, No. 2 station ground connection bayonet locks, No. 1 station isolation bayonet lock and No. 2 station isolation bayonet locks.
Each bayonet pin is connected with the worm bolt through an elastic piece.
The worm bolt rotates in the box body or moves up and down.
And a No. 1 grounding notch, a No. 2 grounding notch, a No. 1 isolating notch and a No. 2 isolating notch are formed in the worm inserting pin and are respectively used for inserting the corresponding four clamping pins.
No. 1 ground connection notch with No. 2 ground connection notch sets up the left side of worm bolt, No. 1 keep apart the notch with No. 2 keeps apart the notch setting and is in right side on the worm bolt.
One side on the worm bolt is provided with a notch, when the notch rotates to one side of the corresponding clamping pin, the opposite side clamping pin is inserted into the notch, and when the corresponding switch is in a brake-separating state, the worm bolt is limited to be immovable.
Each clamping pin is provided with a zipper corresponding to each clamping pin, each clamping pin is pushed to the position where the worm groove is inserted by a reset spring when the corresponding switch is switched off, and when the corresponding switch is switched on, the clamping pin is pulled by a pull rope to exit from the notch.
The embodiment of the utility model provides a first possible implementation mode, wherein, still include position switch for record five prevent interlock current states, insert as the bayonet lock during the state change of worm bolt, to electric control module transmission signal, make electric control module and five prevent interlock's unblock or shutting state keep synchronous.
The embodiment of the utility model provides a second possible implementation mode, wherein, be provided with two circles notch circles on the bolt.
Wherein, first notch circle is connected 1 ground connection notch and 1 isolation notch, and the left side supplies No. 1 station ground connection bayonet lock inserts, and the right side supplies No. 1 station isolation bayonet lock inserts.
Wherein, No. 2 ground connection notches and No. 2 isolation notches are connected to the second notch circle, and the left side supplies No. 2 station ground connection bayonet lock inserts, and the right side supplies No. 2 station isolation bayonet lock inserts.
The embodiment of the utility model provides a third possible implementation mode, wherein, be provided with on the worm bolt and dial the knot, stir the worm bolt is in the box body internal rotation perhaps reciprocates.
The embodiment of the utility model provides a fourth possible embodiment, wherein, the breach is towards ground connection left side, station ground connection bayonet lock ground connection number 1 under the state of station ground connection bayonet lock ground connection number 2, No. 1 the station keep apart the bayonet lock separating brake with No. 2 the station keeps apart the bayonet lock and separates the simultaneous separating brake of bayonet lock, and five prevent interlock unblocks, and circuit breaker switch can close a floodgate.
The embodiment of the utility model provides a fifth possible embodiment, wherein, the breach is towards ground connection left side, station ground connection bayonet lock separating brake No. 1 station ground connection bayonet lock separating brake No. 2 station isolation bayonet lock separating brake No. 1 station isolation bayonet lock separating brake No. 2 the bayonet lock separating brake is kept apart to the station, and five prevent that interlock can not unblock, circuit breaker switch can not close a floodgate.
The embodiment of the utility model provides a sixth possible embodiment, wherein, the right side is kept apart to the breach orientation, the bayonet lock combined floodgate is kept apart to No. 1 station under the state that the bayonet lock was kept apart to No. 2 stations, No. 1 station ground connection bayonet lock with No. 2 station ground connection bayonet lock separating brake simultaneously, but five prevent interlock unblocks, and circuit breaker switch can close a floodgate.
The embodiment of the utility model provides a seventh possible embodiment, wherein, the breach is towards ground connection left side, No. 1 station ground connection bayonet lock ground connection No. 2 station ground connection bayonet lock separating brake No. 1 station isolation bayonet lock separating brake No. 2 the bayonet lock combined floodgate or separating brake are kept apart to the station, and five prevent that interlock can not unblock, circuit breaker switch can not close a floodgate.
The embodiment of the utility model provides an eighth possible embodiment, wherein, the breach is towards ground connection left side, station ground connection bayonet lock separating brake No. 1 station ground connection bayonet lock ground connection No. 2 the bayonet lock combined floodgate or separating brake are kept apart to the station No. 1 the bayonet lock separating brake is kept apart to the station No. 2, five prevent that interlock can not unblock, circuit breaker switch can not close a floodgate.
The embodiment of the utility model provides a beneficial effect is:
the utility model discloses a setting of one side breach for when two three station switches are in same state, circuit breaker switch could close a floodgate, has guaranteed the security of circuit ground connection.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
The five-prevention interlocking device for the bus-side three-position switch ring main unit connection scheme of the present invention is described in further detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is an external structural schematic diagram of a five-prevention interlocking device for a bus-side three-station switch ring main unit communication scheme of the present invention;
fig. 2 is a schematic diagram of the internal structure of the five-prevention interlocking device for the bus-side three-station switch ring main unit connection scheme of the present invention;
fig. 3 is a schematic diagram of a first state structure of a five-prevention interlocking device for a bus-side three-station switch ring main unit connection scheme of the utility model;
fig. 4 is a schematic structural view of a third state of the five-prevention interlocking device for the bus-side three-station switch ring main unit connection scheme of the present invention;
fig. 5 is a structural diagram of a fourth state of the five-prevention interlocking device for the bus-side three-station switch ring main unit connection scheme of the present invention;
fig. 6 is a schematic circuit diagram of a bus-side three-position and line-side three-position switch according to the present invention;
fig. 7 is a schematic diagram of the line structure of the line-side three-station communication scheme of the present invention;
fig. 8 is a schematic circuit diagram of a bus-side three-station communication scheme according to the present invention.
In the figure: no. 101-1 station grounding clamp pins; isolating the bayonet lock at the No. 102-1 station; no. 201-2 station grounding bayonet; isolating the bayonet pins at No. 202-2 stations; 5, a box body; 6-worm bolt; 7-gap.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of the embodiments of the present invention, as generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
Referring to fig. 1 to 2, a first embodiment of the present invention provides a five-prevention interlocking device for bus-side three-station switch ring main unit communication scheme, which includes a box body 5, a worm bolt 6, a No. 1 station grounding bayonet 101, a No. 2 station grounding bayonet 201, a No. 1 station isolation bayonet 102, and a No. 2 station isolation bayonet 202.
Each bayonet pin is connected with the worm bolt 6 through an elastic piece.
The worm bolt 6 rotates or moves up and down in the box body 5.
And a No. 1 grounding notch, a No. 2 grounding notch, a No. 1 isolating notch and a No. 2 isolating notch are formed in the worm bolt 6 and are respectively used for inserting four corresponding clamping pins.
No. 1 ground connection notch with No. 2 ground connection notch sets up the left side of worm bolt 6, No. 1 keep apart the notch with No. 2 keeps apart the notch setting and is in the right side of worm bolt 6.
One side on the worm bolt 6 is provided with breach 7, when breach 7 rotated to one side of corresponding bayonet lock, made contralateral bayonet lock insert the notch, when corresponding switch was in the separating brake state, restriction worm bolt 6 can not remove.
Each clamping pin is provided with a zipper corresponding to each clamping pin, each clamping pin is pushed to the position where the worm groove is inserted by a reset spring when the corresponding switch is switched off, and when the corresponding switch is switched on, the clamping pin is pulled by a pull rope to exit from the notch.
The embodiment of the utility model provides a first possible implementation mode, wherein, still include position switch for record five prevent interlock current states, insert as the bayonet lock during the state change of worm bolt 6, to electric control module transmission signal, make electric control module and five prevent interlock's unblock or shutting state keep synchronous.
The embodiment of the utility model provides a second possible implementation mode, wherein, be provided with two circles notch circles on the bolt.
Wherein, first notch circle is connected 1 ground connection notch and 1 isolation notch, and the left side supplies No. 1 station ground connection bayonet lock inserts, and the right side supplies No. 1 station isolation bayonet lock inserts.
Wherein, No. 2 ground connection notches and No. 2 isolation notches are connected to the second notch circle, and the left side supplies No. 2 station ground connection bayonet lock inserts, and the right side supplies No. 2 station isolation bayonet lock inserts.
The embodiment of the utility model provides a third possible implementation mode, wherein, be provided with on the worm bolt and dial the knot, stir the worm bolt is in the box body internal rotation perhaps reciprocates.
Referring to fig. 3, the embodiment of the present invention provides a fourth possible implementation manner, wherein in the first state, the notch 7 faces the ground left side, the grounded bayonet lock 101 of the station 1 is grounded, the grounded bayonet lock 201 of the station 2 is grounded, the bayonet lock 102 is isolated to the station 1 and the bayonet lock 202 is isolated to the station 2 while the five-prevention interlock device is unlocked, and the breaker switch can be switched on.
The embodiment of the utility model provides a fifth possible embodiment, wherein in the second state, breach 7 is towards ground connection left side, No. 1 station ground connection bayonet lock 101 separating brake No. 2 station ground connection bayonet lock 201 separating brake No. 1 station isolation bayonet lock 102 separating brake No. 2 station isolation bayonet lock 202 separating brake, five prevent that interlock can not unblock, circuit breaker switch can not close a floodgate.
Please refer to fig. 4, an embodiment of the present invention provides a sixth possible implementation manner, wherein in the third state, the right side is isolated towards the notch 7, the bayonet 102 is isolated to No. 1 station, under the state that the bayonet 202 is isolated to No. 2 station, the grounding bayonet 101 of No. 1 station and the grounding bayonet 201 of No. 2 station are simultaneously opened, the five-prevention interlock device can be unlocked, and the breaker switch can be closed.
Referring to fig. 5, the embodiment of the present invention provides a seventh possible implementation manner, wherein in the fourth state, the notch 7 faces the left side of the ground connection, the No. 1 station ground connection bayonet 101 is grounded, the No. 2 station ground connection bayonet 201 is opened, the No. 1 station isolation bayonet 102 is opened, the No. 2 station isolation bayonet 202 is closed or opened, the five-prevention interlock device cannot be unlocked, and the circuit breaker switch cannot be closed.
The embodiment of the utility model provides an eighth possible embodiment, wherein in the fifth state, breach 7 is towards ground connection left side, No. 1 station ground connection bayonet lock 101 separating brake No. 2 station ground connection bayonet lock 201 ground connection No. 1 station isolation bayonet lock 102 combined floodgate or separating brake No. 2 station isolation bayonet lock 202 separating brake, five prevent that interlock can not unblock, circuit breaker switch can not close a floodgate.
The embodiment of the utility model provides a beneficial effect is:
the utility model discloses a setting of one side breach for when two three station switches are in same state, circuit breaker switch could close a floodgate, has guaranteed the security of circuit ground connection.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (10)
1. A five-prevention interlocking device for a bus side three-station switch ring main unit connection scheme is characterized by comprising a box body, a worm bolt, a No. 1 station grounding bayonet lock, a No. 2 station grounding bayonet lock, a No. 1 station isolating bayonet lock and a No. 2 station isolating bayonet lock;
the worm bolt rotates in the box body or moves up and down;
the worm bolt is provided with a No. 1 grounding notch, a No. 2 grounding notch, a No. 1 isolating notch and a No. 2 isolating notch which are respectively used for inserting corresponding four clamping pins;
the No. 1 grounding notch and the No. 2 grounding notch are arranged on the left side of the worm bolt, and the No. 1 isolating notch and the No. 2 isolating notch are arranged on the right side of the worm bolt;
a notch is formed in one side of the worm bolt, when the notch rotates to one side of the corresponding clamping pin, the clamping pin on the other side is inserted into the notch, and when the corresponding switch is in a brake-off state, the worm bolt is limited to be immovable;
a zipper is arranged corresponding to each bayonet lock.
2. The five-prevention interlocking device for the bus-side three-position switch ring main unit communication scheme is characterized in that each clamping pin is connected with the worm bolt through an elastic piece.
3. The five-prevention interlocking device for the bus side three-position switch ring main unit communication scheme is characterized by further comprising a position switch, wherein the position switch is used for recording the current state of the five-prevention interlocking device, and transmitting a signal to the electrical control module when the state of a bayonet pin inserted into the worm bolt is changed, so that the electrical control module and the unlocking or locking state of the five-prevention interlocking device are kept synchronous.
4. The five-prevention interlocking device for the bus-side three-position switch ring main unit communication scheme is characterized in that two notch rings are arranged on the plug pins;
the first notch ring is connected with a No. 1 grounding notch and a No. 1 isolating notch, the grounding bayonet lock of the No. 1 station is inserted into the left side of the first notch ring, and the isolating bayonet lock of the No. 1 station is inserted into the right side of the first notch ring;
wherein, No. 2 ground connection notches and No. 2 isolation notches are connected to the second notch circle, and the left side supplies No. 2 station ground connection bayonet lock inserts, and the right side supplies No. 2 station isolation bayonet lock inserts.
5. The five-prevention interlocking device for the bus side three-position switch ring main unit communication scheme is characterized in that a poking button is arranged on the worm bolt, and the worm bolt is poked to rotate or move up and down in the box body.
6. The five-prevention interlocking device for the bus-side three-station switch ring main unit communication scheme is according to claim 1, wherein the notch faces to the left side of grounding, the grounding bayonet lock of the station 1 is grounded, and the grounding bayonet lock of the station 2 is grounded, the isolating bayonet lock of the station 1 and the isolating bayonet lock of the station 2 are simultaneously opened, the five-prevention interlocking device can be unlocked, and the breaker switch can be closed.
7. The five-prevention interlocking device for the bus-side three-station switch ring main unit communication scheme is according to claim 1, wherein the notch faces to the grounding left side, the No. 1 station grounding bayonet lock is opened, the No. 2 station grounding bayonet lock is opened, the No. 1 station isolating bayonet lock is opened, the No. 2 station isolating bayonet lock is opened, the five-prevention interlocking device cannot be unlocked, and the breaker switch cannot be closed.
8. The five-prevention interlocking device for the bus-side three-station switch ring main unit connection scheme is according to claim 1, wherein the notch faces to the isolation right side, the station 1 isolation bayonet lock is closed, and the station 2 isolation bayonet lock is closed, the station 1 grounding bayonet lock and the station 2 grounding bayonet lock are opened at the same time, the five-prevention interlocking device can be unlocked, and the breaker switch can be closed.
9. The five-prevention interlocking device for the bus-side three-station switch ring main unit communication scheme is according to claim 1, wherein the gap faces to the left side of grounding, the grounding bayonet lock of the station 1 is grounded, the grounding bayonet lock of the station 2 is opened, the isolating bayonet lock of the station 1 is opened, the isolating bayonet lock of the station 2 is closed or opened, the five-prevention interlocking device cannot be unlocked, and the breaker switch cannot be closed.
10. The five-prevention interlocking device for the bus-side three-station switch ring main unit communication scheme is according to claim 1, wherein the gap faces the left side of the grounding, the grounding bayonet lock of the station 1 is opened, the grounding bayonet lock of the station 2 is grounded, the isolating bayonet lock of the station 1 is closed or opened, the isolating bayonet lock of the station 2 is opened, the five-prevention interlocking device cannot be unlocked, and the breaker switch cannot be closed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022702084.7U CN213340189U (en) | 2020-11-20 | 2020-11-20 | Five-prevention interlocking device for bus side three-station switch ring main unit contact scheme |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022702084.7U CN213340189U (en) | 2020-11-20 | 2020-11-20 | Five-prevention interlocking device for bus side three-station switch ring main unit contact scheme |
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| CN213340189U true CN213340189U (en) | 2021-06-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112490060A (en) * | 2020-11-20 | 2021-03-12 | 北京清畅电力技术股份有限公司 | Five-prevention interlocking device for bus side three-station switch ring main unit contact scheme |
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2020
- 2020-11-20 CN CN202022702084.7U patent/CN213340189U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112490060A (en) * | 2020-11-20 | 2021-03-12 | 北京清畅电力技术股份有限公司 | Five-prevention interlocking device for bus side three-station switch ring main unit contact scheme |
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