CN209805397U - secondary screen cabinet test terminal isolator and isolator combination - Google Patents
secondary screen cabinet test terminal isolator and isolator combination Download PDFInfo
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- CN209805397U CN209805397U CN201920249924.3U CN201920249924U CN209805397U CN 209805397 U CN209805397 U CN 209805397U CN 201920249924 U CN201920249924 U CN 201920249924U CN 209805397 U CN209805397 U CN 209805397U
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Abstract
The utility model discloses a secondary screen cabinet test terminal isolator and isolator combination, this isolator includes the horizontal muscle of the insulation of a rectangular shape, a rectangular shape with the insulating muscle of erecting of this disconnection clearance adaptation and establish between the horizontal muscle both ends of this insulation, on a side with the first insulating cylinder of this wiring hole adaptation, the end-to-end connection of this insulating muscle is at the one end of this insulating horizontal muscle and set up perpendicularly with this insulating horizontal muscle, the horizontal muscle of this insulating cylinder of the central axis perpendicular to this insulation, this insulating muscle and the first insulating cylinder of erecting are located on the same side of this insulating horizontal muscle. This isolator simple structure, design benefit can realize the effective isolation of secondary screen cabinet test terminal, and safe, effective, convenient to use, and repeatedly usable, the environmental protection reduces the material that keeps apart the step and consumes the cost.
Description
Technical Field
The utility model belongs to electric power system relay protection field especially relates to a secondary screen cabinet test terminal isolator and isolator combination.
Background
According to the examination regulations of relay protection and power grid safety automatic devices and the examination period and examination and acceptance time regulations of the point protection and safety automatic devices of the Fujian power-saving network, relay protection personnel need to examine and repair the operation states of secondary equipment and related secondary circuits regularly. With the continuous development of power systems, the number of substations is increasing, and the first inspection, the second inspection and the modification work of secondary equipment in the substations are increasing day by day. In order to ensure the isolation of the secondary loop between the operating equipment and the power failure overhaul equipment, the isolation work of secondary safety measures is required to be executed in the work so as to ensure that the power system can operate safely, reliably and continuously.
In the process of debugging and adding the protection, measurement and control device, not only the test terminal in the power failure inspection state needs to be isolated (the installation schematic diagram of the test terminal in the power failure inspection state is shown in fig. 1 and fig. 2), but also the test terminal in the running state needs to be isolated (the installation schematic diagram of the test terminal in the running state is shown in fig. 3 and fig. 4). The existing isolation mode of the test terminal of the secondary screen cabinet is mainly to paste a test wiring hole of the test terminal by using red insulating tape. Although the tape is flexible to use, it is easy to fall off in field application, and there is an extreme risk of wrong addition of the tape to the test terminal in the "running state". Moreover, the red insulating tape can not be recycled, and the cost is high. Meanwhile, the insulating tape cannot be clamped in the disconnection gap between the device side and the cable side, and the problem that the cable side and the device side loop are reconnected due to the fact that the metal connecting sheet is reconnected to the disconnection gap again because of loosening of the screw cannot be solved, so that the risk of secondary side-to-primary side reverse power supply exists in the debugging and adding process.
SUMMERY OF THE UTILITY MODEL
The utility model provides a secondary screen cabinet test terminal isolator and isolator combination, it has overcome in the background art the not enough of prior art.
The utility model provides one of the technical scheme that its technical problem adopted is:
A test terminal isolator of a secondary screen cabinet comprises wiring holes respectively arranged on a cable side and a device side and metal connecting sheets arranged between the wiring holes on the two sides, a disconnection gap is arranged between the cable side and the device side, the metal connecting sheets when the cable side is electrically connected with the device side cover the disconnection gap, the two ends of the metal connecting sheets are electrically connected with the two sides of the disconnection gap so as to enable the cable side and the device side to be electrically connected, and the wiring holes on the cable side, the wiring holes on the device side and the metal connecting sheets are arranged in a vertical array in the secondary screen cabinet; this isolator includes the horizontal muscle of the insulation of a rectangular shape, the insulating bar of erecting with this disconnection clearance adaptation of a rectangular shape and establish between the horizontal muscle both ends of this insulation, on a side with the first insulating cylinder of this wiring hole adaptation, the end-to-end connection of this insulating bar erects the one end of muscle and sets up perpendicularly with the horizontal muscle of this insulation, the horizontal muscle of the central axis perpendicular to of this insulating of this first insulating cylinder, this insulating bar of erecting is located on the same side of the horizontal muscle of this insulation with first insulating cylinder.
In one embodiment: and a second insulating cylinder matched with the wiring hole is arranged between the two ends of the insulating transverse rib and on the other side surface of the insulating transverse rib, the central axis of the second insulating cylinder is perpendicular to the insulating transverse rib, and the first insulating cylinder and the second insulating cylinder are respectively positioned on two back surfaces of the insulating transverse rib.
In one embodiment: the central axes of the first insulating cylinder and the second insulating cylinder are on the same straight line.
In one embodiment: the other end of the insulated transverse bar after the first insulated column body and the second insulated column body are matched with the wiring hole exceeds the edge of the wiring hole by 8-10 mm.
In one embodiment: the axial length of the first insulating cylinder and the second insulating cylinder is 9-11 mm.
In one embodiment: the width of the insulating vertical rib is 18-20 mm.
In one embodiment: the width of the insulating vertical rib is 2-2.5 mm.
in one embodiment: the length of the insulating vertical rib is 37mm or 47 mm.
in one embodiment: is made of silica gel.
The utility model provides a second of the technical scheme that its technical problem adopted:
A secondary screen cabinet test terminal isolator combination comprising two isolators as claimed in claim 3 divided into a first isolator and a second isolator, the sum of the distance from the second insulating cylinder of the first isolator to one end of the insulating cross bar and the distance from the second insulating cylinder of the second isolator to one end of the insulating cross bar being equal to the distance between the cable side wiring hole and the device side wiring hole.
Compared with the background technology, the technical scheme has the following advantages:
Secondary screen cabinet test terminal isolator simple structure, design benefit, can realize the effective isolation of secondary screen cabinet test terminal, use safe, effective, convenient, and repeatedly usable, the environmental protection reduces the material that keeps apart the step and consumes the cost.
Drawings
the present invention will be further explained with reference to the drawings and examples.
Fig. 1 is one of schematic views showing the installation of a test terminal in a power failure inspection state as described in the background art.
Fig. 2 is a second schematic view showing the installation of the test terminal in the power failure inspection state described in the background art.
Fig. 3 is one of the mounting diagrams of the test terminal in the operation state described in the background art.
Fig. 4 is a second schematic view showing the mounting of the test terminal in the operating state described in the background art.
Fig. 5 is a schematic structural diagram of an isolator according to the first embodiment (applicable to the test terminal shown in fig. 2).
Fig. 6 is a second schematic structural diagram of the isolator according to the first embodiment (applicable to the test terminal shown in fig. 1).
Detailed Description
In the first embodiment, please refer to fig. 5 and fig. 6:
The test terminal of the secondary screen cabinet comprises wiring holes 11 and 21 respectively arranged on a cable side 1 and a device side 2 and a metal connecting sheet 20 arranged between the wiring holes 11 and 21 on the two sides, a disconnection gap 30 is arranged between the cable side 1 and the device side 2, the metal connecting sheet 20 when the cable side 1 is electrically connected with the device side 2 covers the disconnection gap 30, two ends of the metal connecting sheet are electrically connected with two sides of the disconnection gap 30 so as to electrically connect the cable side 1 and the device side 2, and the wiring holes 11 on the cable side 1, the wiring holes 21 on the device side 2 and the metal connecting sheet 20 are arranged in a vertical array in the secondary screen cabinet; this experimental terminal isolator of secondary screen cabinet includes the horizontal muscle 101 of insulation of a rectangular shape, a rectangular shape with the insulating perpendicular muscle 102 of this disconnection clearance adaptation and establish between the horizontal muscle 101 both ends of this insulation, on a side with the first insulation column body 103 of this cable side wiring hole 11 adaptation, the end-to-end connection of this insulating perpendicular muscle 102 sets up perpendicularly (specifically, this insulating perpendicular muscle 102 is the L type with insulating horizontal muscle 101 and is connected) at the one end of the horizontal muscle 101 of this insulation and with this insulating horizontal muscle 101, this insulating perpendicular muscle 102 of the central axis perpendicular to this insulating horizontal muscle 101 of this first insulation column body 103, this insulating perpendicular muscle 102 and first insulation column body 103 are located this insulating horizontal muscle 101 on the same side.
Preferably, a second insulating cylinder 104 adapted to the cable-side and device-side wire holes 11 and 21 is disposed between two ends of the insulating transverse rib 101 and on the other side surface, a central axis of the second insulating cylinder 104 is perpendicular to the insulating transverse rib 101, and the first insulating cylinder 103 and the second insulating cylinder 101 are disposed on two opposite surfaces of the insulating transverse rib 101, respectively. In this embodiment, the central axes of the first insulating cylinder 103 and the second insulating cylinder 104 are on the same straight line.
In order to ensure a good insulation isolation effect, the other end of the insulation transverse rib 101 after the first insulation column 103 and the second insulation column 104 are fitted in the wire connection holes 11 and 21 can exceed the edge of the wire connection hole 11 and 21 by 8-10mm, preferably 10 mm.
The first insulating cylinder 103 and the second insulating cylinder 104 have an axial length of 9-11 mm.
The width of the insulating vertical rib 102 is 18-20mm, the width of the insulating vertical rib 102 is 2-2.5mm, and the length of the insulating vertical rib 102 is 37mm or 47 mm.
This isolator adopts the silica gel material preparation, outside the insulating properties who guarantees the isolator, can also guarantee first insulation cylinder 103 and second insulation cylinder 104 can with wiring hole zonulae occludens, be difficult to drop.
The length distance between the first insulating column 103 on the insulating transverse rib 101 of the isolator and one end of the insulating transverse rib 101 is set to be equal to the distance between the disconnection gap 30 and the wiring hole 11 on the cable side 1 in the actual secondary screen cabinet.
preferably, the conspicuous position of the transverse insulating rib 101 is marked with a word "strictly prohibited to be removed" to warn others to avoid removing the isolator in the middle of the isolation, thereby ensuring the work safety.
Example two:
A secondary screen cabinet test terminal isolator combination comprises two isolators as described in the first embodiment, which are divided into a first isolator and a second isolator, wherein the sum of the distance from a second insulating cylinder of the first isolator to one end of an insulating transverse rib and the distance from a second insulating cylinder of the second isolator to one end of the insulating transverse rib is equal to the distance between a cable side wiring hole and a device side wiring hole.
example three:
According to the use method of the secondary screen cabinet test terminal isolator in the embodiment one, when a test terminal in a power failure maintenance state is isolated, the metal connecting sheet 20 does not connect the disconnection gap 30, the cable side 1 and the device side 2 are disconnected, at this time, one side of the insulating transverse rib 101 faces downwards, the insulating vertical rib 102 is inserted into the disconnection gap 30, and the first insulating column 103 is inserted into the wiring hole 11 of the cable side 1, so that isolation is realized.
Example four:
According to the using method of the secondary screen cabinet test terminal isolator in the second embodiment, when the test terminal in the running state is isolated, the metal connecting sheet is connected with the disconnection gap, the other sides of the insulating transverse ribs of the first isolator and the second isolator face downwards, and the second insulating cylinders of the first isolator and the second isolator are respectively inserted into the wiring hole on the cable side and the wiring hole on the device side, so that isolation is achieved.
Secondary screen cabinet test terminal isolator simple structure, design benefit, can realize the effective isolation of secondary screen cabinet test terminal, use safe, effective, convenient, and repeatedly usable, the environmental protection reduces the material that keeps apart the step and consumes the cost.
The above description is only a preferred embodiment of the present invention, and therefore the scope of the present invention should not be limited by this description, and all equivalent changes and modifications made within the scope and the specification of the present invention should be covered by the present invention.
Claims (10)
1. A test terminal isolator of a secondary screen cabinet comprises wiring holes respectively arranged on a cable side and a device side and metal connecting sheets arranged between the wiring holes on the two sides, a disconnection gap is arranged between the cable side and the device side, the metal connecting sheets when the cable side is electrically connected with the device side cover the disconnection gap, the two ends of the metal connecting sheets are electrically connected with the two sides of the disconnection gap so as to enable the cable side and the device side to be electrically connected, and the wiring holes on the cable side, the wiring holes on the device side and the metal connecting sheets are arranged in a vertical array in the secondary screen cabinet; the method is characterized in that: including the horizontal muscle of insulating of a rectangular shape, the insulating of a rectangular shape and this disconnection clearance adaptation erect the muscle and establish between the horizontal muscle both ends of this insulation, on a side with the first insulating cylinder of this wiring hole adaptation, the end-to-end connection of this insulating perpendicular muscle is in the one end of the horizontal muscle of this insulation and set up perpendicularly with the horizontal muscle of this insulation, the horizontal muscle of the central axis perpendicular to of this first insulating cylinder, this insulating perpendicular muscle is located the same side of the horizontal muscle of this insulation with first insulating cylinder.
2. The secondary screen cabinet test terminal isolator of claim 1, wherein: and a second insulating cylinder matched with the wiring hole is arranged between the two ends of the insulating transverse rib and on the other side surface of the insulating transverse rib, the central axis of the second insulating cylinder is perpendicular to the insulating transverse rib, and the first insulating cylinder and the second insulating cylinder are respectively positioned on two back surfaces of the insulating transverse rib.
3. The secondary screen cabinet test terminal isolator of claim 1, wherein: the central axes of the first insulating cylinder and the second insulating cylinder are on the same straight line.
4. The secondary screen cabinet test terminal isolator of claim 3, wherein: the other end of the insulated transverse bar after the first insulated column body and the second insulated column body are matched with the wiring hole exceeds the edge of the wiring hole by 8-10 mm.
5. The secondary screen cabinet test terminal isolator of claim 3, wherein: the axial length of the first insulating cylinder and the second insulating cylinder is 9-11 mm.
6. The secondary screen cabinet test terminal isolator of claim 3, wherein: the width of the insulating vertical rib is 18-20 mm.
7. The secondary screen cabinet test terminal isolator of claim 3, wherein: the width of the insulating vertical rib is 2-2.5 mm.
8. The secondary screen cabinet test terminal isolator of claim 3, wherein: the length of the insulating vertical rib is 37mm or 47 mm.
9. A secondary screen cabinet test terminal isolator as claimed in any one of claims 1 to 8, wherein: is made of silica gel.
10. The utility model provides a combination of experimental terminal isolator of secondary screen cabinet which characterized in that: comprising two isolators as claimed in claim 3, divided into a first isolator and a second isolator, the sum of the distance from the second insulating cylinder of the first isolator to one end of the insulating cross-bar and the distance from the second insulating cylinder of the second isolator to one end of the insulating cross-bar being equal to the distance between the cable-side wire holes and the device-side wire holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920249924.3U CN209805397U (en) | 2019-02-27 | 2019-02-27 | secondary screen cabinet test terminal isolator and isolator combination |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920249924.3U CN209805397U (en) | 2019-02-27 | 2019-02-27 | secondary screen cabinet test terminal isolator and isolator combination |
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| CN209805397U true CN209805397U (en) | 2019-12-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109768521A (en) * | 2019-02-27 | 2019-05-17 | 国网福建省电力有限公司漳州供电公司 | A kind of secondary screen cabinet testing terminal isolator and its application method |
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2019
- 2019-02-27 CN CN201920249924.3U patent/CN209805397U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109768521A (en) * | 2019-02-27 | 2019-05-17 | 国网福建省电力有限公司漳州供电公司 | A kind of secondary screen cabinet testing terminal isolator and its application method |
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