CN217606766U - Drop-out fuse installation device of transformer substation - Google Patents
Drop-out fuse installation device of transformer substation Download PDFInfo
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- CN217606766U CN217606766U CN202221929852.5U CN202221929852U CN217606766U CN 217606766 U CN217606766 U CN 217606766U CN 202221929852 U CN202221929852 U CN 202221929852U CN 217606766 U CN217606766 U CN 217606766U
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Abstract
The utility model discloses a transformer substation drop-out fuse installation device, which comprises an installation rod, wherein one end of the installation rod is provided with a first connector connected with a drop-out fuse, and the other end of the installation rod is provided with a second connector connected with a cross arm; a support mounting groove matched with the fuse support is formed in the end, far away from the mounting rod, of the first connecting head, and the support mounting groove is formed by inwards sinking the end of the first connecting head; the side part of the support mounting groove penetrates through the first connecting head and is matched with a first mounting hole in the fuse support; and a second positioning hole which penetrates through the second connector and is matched with the second mounting hole on the cross rod is formed in the second connector. The installation device is used for installing the drop-out fuse on the cross arm, the effect of prolonging the fuse support can be achieved, the arc flash phenomenon can be reduced, the drop-out fuse damage caused by arc flash is reduced, and the replacement frequency of the drop-out fuse of the simple transformer substation is reduced.
Description
Technical Field
The utility model relates to a drop out fuse installation device of transformer substation.
Background
The drop-out fuse is suitable for an electric power system with the frequency of 50HZ and the rated voltage of 35kV or below and is arranged on the high-voltage side of a distribution transformer or a distribution branch circuit. The main function is the place with low requirement on the protection performance, and the device can be used in combination with an isolating switch to replace an automatic air switch; the circuit breaker can also be matched with a load switch for use to replace a high-price circuit breaker. And simultaneously, the circuit has the functions of short-circuit protection, overload and isolation.
However, when the existing outdoor simple 35kV drop fuse of the transformer substation is in a humid environment for a long time, the phenomenon of arc flash is easily caused, so that the fuse tube of the drop fuse is burnt, when the drop fuse is damaged, the total station power failure is often caused when the fuse tube is replaced, the influence range is wide, and the great loss is caused for a company.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a drop out fuse installation device of transformer substation to solve present drop out fuse and cause the problem of flash of arc phenomenon easily in humid environment.
In order to solve the technical problem, the utility model provides a transformer substation drop-out fuse mounting device, which comprises a mounting rod, wherein one end of the mounting rod is provided with a first connector connected with a drop-out fuse, and the other end of the mounting rod is provided with a second connector connected with a cross arm; a support mounting groove which is connected with the fuse support is formed in the end part, far away from the mounting rod, of the first connecting head, and the support mounting groove is formed by inwards sinking the end part of the first connecting head; the side part of the support mounting groove penetrates through the first connecting head and is matched with a first mounting hole in the fuse support; and a second positioning hole which penetrates through the second connector and is matched with the second mounting hole on the cross rod is formed in the second connector.
Further, be equipped with in the support mounting groove and be used for forming two sets of clamping parts of clamping action with the fuse support that extends into in the support mounting groove, two sets of the clamping part sets up the both ends at the support mounting groove respectively.
Further, the clamping piece comprises two oppositely arranged spring pieces, and the two spring pieces are respectively arranged on two opposite side walls of the support mounting groove.
Furthermore, the clamping grooves which are opposite to each other are arranged on two opposite side walls of the support mounting groove, a reed hole is formed in the middle of one side wall of the clamping groove facing the middle of the support mounting groove, the spring piece is installed in the reed hole, an arc-shaped portion is arranged in the middle of the spring piece, and the arc-shaped portion of the spring piece extends into the support mounting groove through the protrusion of the reed hole.
Further, the one end that the installation pole was kept away from to the second connector is equipped with L type fastener, L type fastener include with second connector end connection's vertical part and with the horizontal part that the vertical part is connected, the one end of horizontal part with the vertical part is connected, and the other end of horizontal part extends to the one end level that second connector and installation pole are connected, form between L type fastener and the second connector and cross arm to complex cross arm bayonet socket.
The utility model has the advantages that: the installation device is used for installing the drop-out fuse on the cross arm, the effect of prolonging the fuse support can be achieved, the arc flash phenomenon can be reduced, the drop-out fuse damage caused by arc flash is reduced, and the replacement frequency of the drop-out fuse of the simple transformer substation is reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of another embodiment of the present invention.
Fig. 3 is a schematic structural diagram of an embodiment of a portion a in fig. 2 according to the present invention.
Fig. 4 is a schematic structural diagram of a conventional drop-out fuse.
Wherein: 1. mounting a rod; 2. a first connector; 21. a support mounting groove; 22. a first positioning hole; 3. a second connector; 31. a second positioning hole; 32. a cross arm bayonet; 4. a card slot; 5. a spring plate; 6. a fuse body; 61. and a fuse holder.
Detailed Description
As shown in fig. 1, the mounting device for the drop-out fuse of the transformer substation comprises a mounting rod 1, wherein one end of the mounting rod 1 is provided with a first connector 2 connected with the drop-out fuse, and the other end of the mounting rod 1 is provided with a second connector 3 connected with a cross arm; a support mounting groove 21 connected with the fuse support 61 is formed in the end part, far away from the mounting rod 1, of the first connecting head 2, and the support mounting groove 21 is formed by inwards sinking of the end part of the first connecting head 2; the side part of the support mounting groove 21 penetrates through the first connecting head 2 and is matched with the first mounting hole 22 on the fuse support 61; and a second positioning hole 31 which penetrates through the second connector 3 and is matched with the second mounting hole on the cross rod is formed in the second connector 3.
The conventional drop-out fuse includes a fuse main body 6 and a fuse holder 61 (shown in fig. 4); the existing fuse body 6 is directly mounted on the cross arm via the fuse holder 61. The utility model discloses a this installation device installs drop out fuse on the cross arm, can play extension fuse support 61's effect, reducible arc flash phenomenon to the reduction damages because of the drop out fuse that the arc flash leads to, reduces the simple and easy transformer substation and falls the fuse and change the number of times. During installation, the fuse holder 61 is firstly inserted into the holder installation groove 21 of the first connecting head 2, and then the fuse holder 61 is fixed in the holder installation groove 21 by using a first fastener (such as a bolt) penetrating through the first installation hole and the first positioning hole 22; then, the second connector 3 is mounted on the corresponding position of the cross arm, and the second connector 3 and the cross arm are fixed by a second fastener (e.g. a bolt) penetrating through the second mounting hole and the second positioning hole 31, so that the mounting is completed.
According to an embodiment of the present application, as shown in fig. 2 and 3, two sets of clamping members for clamping the fuse holder 61 extending into the holder mounting groove 21 are provided in the holder mounting groove 21, and the two sets of clamping members are respectively provided at both ends of the holder mounting groove 21. Through set up the holder in support mounting groove 21, can play the clamping action to the fuse support 61 that extends into in support mounting groove 21, can prevent slippage on first connector follow fuse support 61 in the installation to utilize first fastener to fix fuse support 61 and first connector.
According to an embodiment of the present application, the clamping member includes two spring pieces 41 disposed oppositely, and the two spring pieces 41 are respectively mounted on two opposite sidewalls of the holder mounting groove 21. The two oppositely arranged spring pieces 41 are used for clamping the fuse support 61 in the support mounting groove 21, and the structure is simple and the operation is convenient.
According to an embodiment of the application, be equipped with draw-in groove 4 of mutual opposition on two relative lateral walls of support mounting groove 21, the reed hole has been seted up in a lateral wall middle part that draw-in groove 4 met to support mounting groove 21 middle part, spring leaf 41 installs in the reed hole, spring leaf 41's middle part is equipped with the arc portion, and spring leaf 41's arc portion is extended to in the support mounting groove 21 by the protrusion of reed hole. In a natural state, the length of the spring piece 41 is smaller than that of the card slot 4, and after the fuse holder 61 is inserted into the holder mounting groove 21, the fuse holder 61 exerts a pressing action on the arc-shaped portion of the spring piece 41, and at this time, the length of the spring piece 41 is equal to that of the card slot 4.
According to an embodiment of this application, the one end that installation pole 1 was kept away from to second connector 3 is equipped with L type fastener, L type fastener include with 3 end connection's of second connector vertical part and with the horizontal part that the vertical part is connected, the one end of horizontal part with the vertical part is connected, and the other end of horizontal part extends to the one end level that second connector 3 and installation pole 1 are connected, form between L type fastener and the second connector 3 and cross arm to complex cross arm bayonet socket 32. It can be for setting up L type fastener to make and form cross arm bayonet socket 32 between L type fastener and the second connector 3, when installation second connector 3, with cross arm bayonet socket 32 on the card on the cross arm, utilize cross arm bayonet socket 32 to tentatively fix the second connector, the second fastener of can being convenient for is fixed fuse support 61 and second connector.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (5)
1. A transformer substation drop-out fuse mounting device is characterized by comprising a mounting rod, wherein one end of the mounting rod is provided with a first connector connected with a drop-out fuse, and the other end of the mounting rod is provided with a second connector connected with a cross arm; a support mounting groove which is connected with the fuse support is formed in the end part, far away from the mounting rod, of the first connecting head, and the support mounting groove is formed by inwards sinking the end part of the first connecting head; the side part of the support mounting groove penetrates through the first connecting head and is matched with a first mounting hole in the fuse support; and a second positioning hole which penetrates through the second connector and is matched with the second mounting hole on the cross rod is formed in the second connector.
2. The substation drop-out fuse mounting device according to claim 1, wherein two sets of clamping members for clamping the fuse holder extending into the holder mounting groove are arranged in the holder mounting groove, and the two sets of clamping members are respectively arranged at two ends of the holder mounting groove.
3. The substation drop out fuse mounting device of claim 2, wherein the clamping member comprises two oppositely arranged spring tabs mounted on two opposite side walls of the mounting slot respectively.
4. A substation drop-out fuse mounting device according to claim 3, wherein the two opposite side walls of the support mounting groove are provided with mutually opposite clamping grooves, the middle part of one side wall of the clamping groove facing the middle part of the support mounting groove is provided with a spring leaf hole, the spring leaf is mounted in the spring leaf hole, the middle part of the spring leaf is provided with an arc part, and the arc part of the spring leaf extends into the support mounting groove from the protrusion of the spring leaf hole.
5. A transformer substation drop-out fuse installation device according to any one of claims 1-4, characterized in that the one end that the installation pole was kept away from to the second connector is equipped with L type fastener, L type fastener include with second connector end connection's vertical part and with the horizontal part that the vertical part is connected, the one end of horizontal part with the vertical part is connected, the other end of horizontal part extends to the one end level that second connector and installation pole are connected, form between L type fastener and the second connector with cross arm to complex cross arm bayonet socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221929852.5U CN217606766U (en) | 2022-07-26 | 2022-07-26 | Drop-out fuse installation device of transformer substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221929852.5U CN217606766U (en) | 2022-07-26 | 2022-07-26 | Drop-out fuse installation device of transformer substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217606766U true CN217606766U (en) | 2022-10-18 |
Family
ID=83593224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221929852.5U Active CN217606766U (en) | 2022-07-26 | 2022-07-26 | Drop-out fuse installation device of transformer substation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217606766U (en) |
-
2022
- 2022-07-26 CN CN202221929852.5U patent/CN217606766U/en active Active
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