CN203367823U - Device for replacing fuse - Google Patents
Device for replacing fuse Download PDFInfo
- Publication number
- CN203367823U CN203367823U CN 201320460511 CN201320460511U CN203367823U CN 203367823 U CN203367823 U CN 203367823U CN 201320460511 CN201320460511 CN 201320460511 CN 201320460511 U CN201320460511 U CN 201320460511U CN 203367823 U CN203367823 U CN 203367823U
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- CN
- China
- Prior art keywords
- fuse
- switch
- knifeshaped
- knifeshaped fuse
- terminal board
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model provides a device for replacing fuse. The device is applied in a substation branch. The substation branch comprises a power supply, a first knife fuse switch, an outlet terminal row and a load which are connected in order. The device provided by the utility model comprises a second knife fuse switch, an ammeter and a plurality of plug leads. One port of input ends of the second knife fuse switch can be connected with an input terminal of the power supply through a plug lead, and one port of output ends of the second knife fuse switch can be connected with an outlet terminal row through a plug lead. The ammeter is connected in series between the second knife fuse switch and the outlet terminal row. The device for replacing fuse can be used as a temporary connecting device to be connected in parallel to the first knife fuse switch. Thus, the first knife fuse switch can be disconnected for fuse replacement. According to the utility model, fuse of the first knife fuse switch is replaced without power outage of the system such that continuous power supply is guaranteed and normal running of production and living within the line range is realized.
Description
Technical field
The utility model relates to the fuse technique field, more particularly, relates to a kind of device of changing fuse.
Background technology
Switch with knifeshaped fuse, as the electric component of a kind of circuit overload protection and line short protection, is widely used in transformer station's branch road of transformer substation system.The structural representation of transformer station's branch road as shown in Figure 1, comprise: power supply 11, switch with knifeshaped fuse 12, outgoing line terminal board 13 and load 14, the input of switch with knifeshaped fuse 12 is connected with power supply 11 ends of incoming cables, and output is connected with outgoing line terminal board 13, and the other end of outgoing line terminal board 13 is connected with load 14.The close disconnecting link of switch with knifeshaped fuse 12, power supply 11 is connected with the fuse of switch with knifeshaped fuse 12, and power supply 11 gives load 14 power supplies; Disconnect disconnecting link, power supply 11 is connected disconnection with fuse, the load dead electricity.When switch with knifeshaped fuse 12 is used in reality, disconnecting link is always in closure state, when the electric current by fuse is excessive while surpassing the blowout current of fuse, and fuse failure, the electric current in this path is cut off, thereby guarantees that other electric equipment is not burned.
Running time is long over useful life, or the fuse that closes on useful life, has very large potential safety hazard, has a strong impact on the reliability service of transformer substation system, therefore should be changed.Change of fuse need in the situation that electric equipment stop transport and to carry out, and the time of change of fuse should not coordinate with the time that electric equipment need to stop the labour maintenance, when fuse need to be changed, electric equipment may not need to stop the labour maintenance, therefore, during the stoppage in transit electric equipment, can not guarantee the lasting supply of electric power when changing fuse, make the productive life in line range not run well, so the problem of system charged for replacement fuse is urgently to be resolved hurrily.
The utility model content
In view of this, the utility model provides a kind of device of changing fuse, when realizing that system is charged, fuse is changed, thereby is guaranteed the lasting supply of electric power, and the productive life in line range is run well.
A kind of device of changing fuse, be applied in transformer station's branch road, described transformer station branch road comprises: power supply, the first switch with knifeshaped fuse, outgoing line terminal board and load, the input of described the first switch with knifeshaped fuse is connected with the end of incoming cables of described power supply, the output of described the first switch with knifeshaped fuse is connected with described outgoing line terminal board, the other end of described outgoing line terminal board is connected with described load, comprising:
The second switch with knifeshaped fuse, ammeter and Duo Gen plug wires;
A port of the input of described the second switch with knifeshaped fuse connects an end of a described plug wires, the other end of described plug wires can be connected with the end of incoming cables of described power supply, a port of the output of described the second switch with knifeshaped fuse connects an end of a described plug wires, and the other end of described plug wires can be connected with described outgoing line terminal board;
Described ammeter is connected between described the second switch with knifeshaped fuse and described outgoing line terminal board.
Preferably, described the first switch with knifeshaped fuse is identical with the model of described the second switch with knifeshaped fuse.
Preferably, described plug wires comprises:
Wire;
With, be arranged on respectively the banana plug at described wire two ends.
Preferably, also comprise:
The wire clamp removably connected with described banana plug;
With described banana plug, removably connect, and with the threaded connector of the screw thread coupling of the jack of described outgoing line terminal board.
From above-mentioned technical scheme, can find out, the utility model provides a kind of device of changing fuse, be applied in transformer station's branch road, transformer station's branch road comprises the power supply connected successively, the first switch with knifeshaped fuse, outgoing line terminal board and load, described device comprises: the second switch with knifeshaped fuse, ammeter and Duo Gen plug wires, a port of the input of the second switch with knifeshaped fuse can be connected with the end of incoming cables of power supply by a plug wires, a port of the output of the second switch with knifeshaped fuse can be connected with outgoing line terminal board by a plug wires, ammeter is connected between the second switch with knifeshaped fuse and outgoing line terminal board.The device of the replacing fuse that the utility model provides can be used as a kind of temporary connecting device, be connected in parallel on the two ends of the first switch with knifeshaped fuse, when ammeter shows reading, illustrate in this temporary connecting device and have electric current to pass through, now, can disconnect the first switch with knifeshaped fuse and carry out change of fuse, realized in the situation that system does not have a power failure, fuse to the first switch with knifeshaped fuse is changed, thereby has guaranteed the lasting supply of electric power, and the productive life in line range is run well.
The accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, below will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structural representation that Fig. 1 is transformer station's branch road;
Fig. 2 is the disclosed a kind of structural representation of changing the device of fuse of the utility model embodiment;
The structural representation that Fig. 3 is the disclosed a kind of tool box of the utility model embodiment panel.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making under the creative work prerequisite the every other embodiment obtained, and all belong to the scope of the utility model protection.
As shown in Figure 2, the disclosed a kind of structural representation of changing the device of fuse of the utility model embodiment.
The application of installation of described replacing fuse is in transformer station's branch road, the device of described replacing fuse comprises: the second switch with knifeshaped fuse 21, ammeter 22 and Duo Gen plug wires (two plug wires only are shown in Fig. 2, are respectively the first plug wires 23 and the second plug wires 24);
When the device of changing fuse is used and transformer station's branch circuit parallel connection, be specially: a port of the input of the second switch with knifeshaped fuse 21 connects an end of the first plug wires 23, the other end of the first plug wires 23 can be connected with the end of incoming cables of power supply 11, a port of the output of the second switch with knifeshaped fuse 21 connects an end (not shown) of the second plug wires 24, and the other end of the second plug wires 24 can be connected with outgoing line terminal board 13;
What need explanation is a bit, different transformer station's branch roads are selected different switch with knifeshaped fuse, when transformer station's branch road is that the AC single phase operation connects load, select the switch with knifeshaped fuse that only has single fuse, now, the input of switch with knifeshaped fuse has a port, for connecing power supply 11, output has a port, for leading-out wire terminal board 13;
When transformer station's branch road is direct current system (being positive and negative two-way), select the switch with knifeshaped fuse of two fuses, now the input of switch with knifeshaped fuse has two ports, a positive pole that connects power supply 11, a negative pole that connects power supply 11, same, the output of switch with knifeshaped fuse also has two ports, the positive pole of a leading-out wire terminal board 13, the negative pole of a leading-out wire terminal board 13;
When transformer station's branch road is AC three-phase (A phase B phase C phase), select the switch with knifeshaped fuse of three fuses, now the input of switch with knifeshaped fuse has three ports, and for connecing power supply 11, output has three ports, for leading-out wire terminal board 13; While in threephase load, also comprising neutral line N, need select the switch with knifeshaped fuse of four fuses, the input of this switch with knifeshaped fuse has four ports, and output also has four ports.
The concrete using method of the device of the replacing fuse that the utility model provides is: change the device of fuse and the switch with knifeshaped fuse that switch with knifeshaped fuse 12(needs to change fuse) transformer station's branch circuit parallel connection at place, be specially the first plug wires 23 and be connected with the end of incoming cables of power supply 11, the second plug wires 24 is connected with outgoing line terminal board 13.When ammeter 22 shows reading, illustrate that the device of changing fuse has electric current to pass through, now, disconnect the disconnecting link of switch with knifeshaped fuse 12, carry out change of fuse.After change of fuse, the disconnecting link of closed switch with knifeshaped fuse 12, disconnect the disconnecting link of the second switch with knifeshaped fuse 21, removes the device of changing fuse.
Because different transformer station's branch roads is selected different switch with knifeshaped fuse, the model of therefore changing the second switch with knifeshaped fuse 21 in the device of fuse is identical with the model of the switch with knifeshaped fuse that needs the replacing fuse.
In summary it can be seen, the device of the replacing fuse that the utility model provides is as a kind of temporary connecting device, be connected in parallel on the two ends of the switch with knifeshaped fuse that needs the replacing fuse, while in ammeter 22, showing reading, illustrating in this temporary connecting device has electric current to pass through, now disconnect the disconnecting link of the switch with knifeshaped fuse that needs the replacing fuse, carry out change of fuse.Therefore, the device of the replacing fuse that the utility model provides, realized in the situation that system does not have a power failure, fuse being changed, and guaranteed the lasting supply of electric power, and the productive life in line range is run well.
Wherein, plug wires comprises: wire and be arranged on respectively the banana plug at wire two ends.
For guaranteeing to change the device and solid and reliable connection of switch with knifeshaped fuse that needs to change fuse of fuse, prevent from installing dockingundocking in the process of charged for replacement fuse, cause transformer station's branch road dead electricity or transformer station's grounding fault, and be convenient for changing the device of fuse and the installation and removal between transformer station's branch road, the utility model, according to the end of incoming cables of power supply 11 and outgoing line terminal board 13 different characteristics separately, has been selected respectively different splicing ears.
Because the inlet wire of power supply 11 is fixed on copper bar, so the end of incoming cables that adopts wire clamp will change the device of fuse is fixed on copper bar, the thickness of copper bar has guaranteed that wire clamp can clip, and wherein, the banana plug of wire clamp and the first plug wires 23 is for removably connecting.
Concrete, when connecting power supply 11 and changing the device of fuse, the banana plug of the first plug wires 23 1 ends is connected with the device of changing fuse, and the banana plug of the other end is connected with the jack of wire clamp afterbody, and then wire clamp is clipped on the fixing copper bar of the inlet wire of power supply 11.After change of fuse is complete, the first plug wires 23 disassembled can be separated with wire clamp, in order to deposit and use next time.
Outgoing line terminal board 13 is provided with thread jack, so threaded connector of the screw thread of the jack of employing and outgoing line terminal board 13 coupling, pass through screw threads for fastening, the leading-out terminal that guarantees the device of replacing fuse reliably is connected with the thread jack of outgoing line terminal board 13, wherein, the banana plug of threaded connector and the second plug wires 24 is for removably connecting.
Concrete, when connecting outgoing line terminal board 13 and changing the device of fuse, first threaded connector is fastened on outgoing line terminal board 13, then the banana plug of the second plug wires 24 1 ends is connected with the device of changing fuse, and the banana plug of the other end and the jack of threaded connector are fixed.After change of fuse is complete, dismantle respectively the second plug wires 24 and threaded connector, in order to deposit and use next time.
Be understandable that, change for convenience the carrying of device of fuse, the second switch with knifeshaped fuse 21, ammeter 22 can be integrated in a portable tool box, dispose plug wires, wire clamp and threaded connector in tool box, be provided with connecting hole on the panel in tool box, be used for the attachment plug wire.Wherein, the second switch with knifeshaped fuse 21 and ammeter 22 can be changed according to actual needs.
As shown in Figure 3, the structural representation of a kind of tool box panel that the utility model embodiment provides, wherein, the shell in tool box can adopt aluminum alloy material, the inside in tool box is integrated with switch with knifeshaped fuse and ammeter, switch with knifeshaped fuse is connected by wire with ammeter, and can carry out according to actual needs the replacing of different model.The corresponding identifier of switch with knifeshaped fuse and ammeter is presented at respectively on the relevant position of panel 1 in tool box, as shown in Figure 3 switch with knifeshaped fuse 1 and ammeter 2.
Be provided with connecting hole on the panel in tool box, to be used for the attachment plug wire.The corresponding input connecting hole of the port of the input of switch with knifeshaped fuse, the corresponding input connecting hole of the port of each input, the corresponding output connecting hole of the port of the output of switch with knifeshaped fuse, the corresponding output connecting hole of the port of each output, two connecting holes, input connecting hole 4 and output connecting hole 5 shown in Fig. 3.
Any that need to illustrate, have an output connecting hole to be connected with ammeter.
Observe for convenience whether conducting of switch with knifeshaped fuse, can also be provided with on the panel in tool box: indicator light 6, indicator light 6 is connected with the switch with knifeshaped fuse in tool box, and during the switch with knifeshaped fuse conducting, indicator light 6 is bright, otherwise indicator light 6 does not work.
For convenience of deposit plug wires, wire clamp and threaded connector in tool box, in inside, tool box, the oblique line part as in Fig. 3, also be provided with storage area.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment that between each embodiment, identical similar part is mutually referring to getting final product.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the utility model.Multiple modification to these embodiment will be apparent for those skilled in the art, and General Principle as defined herein can be in the situation that do not break away from spirit or scope of the present utility model, realization in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (4)
1. a device of changing fuse, be applied in transformer station's branch road, described transformer station branch road comprises: power supply, the first switch with knifeshaped fuse, outgoing line terminal board and load, the input of described the first switch with knifeshaped fuse is connected with the end of incoming cables of described power supply, the output of described the first switch with knifeshaped fuse is connected with described outgoing line terminal board, the other end of described outgoing line terminal board is connected with described load, it is characterized in that, comprising:
The second switch with knifeshaped fuse, ammeter and Duo Gen plug wires;
A port of the input of described the second switch with knifeshaped fuse connects an end of a described plug wires, the other end of described plug wires can be connected with the end of incoming cables of described power supply, a port of the output of described the second switch with knifeshaped fuse connects an end of a described plug wires, and the other end of described plug wires can be connected with described outgoing line terminal board;
Described ammeter is connected between described the second switch with knifeshaped fuse and described outgoing line terminal board.
2. device according to claim 1, is characterized in that, described the first switch with knifeshaped fuse is identical with the model of described the second switch with knifeshaped fuse.
3. device according to claim 1, is characterized in that, described plug wires comprises:
Wire;
With, be arranged on respectively the banana plug at described wire two ends.
4. device according to claim 3, is characterized in that, also comprises:
The wire clamp removably connected with described banana plug;
With described banana plug, removably connect, and with the threaded connector of the screw thread coupling of the jack of described outgoing line terminal board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320460511 CN203367823U (en) | 2013-07-30 | 2013-07-30 | Device for replacing fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320460511 CN203367823U (en) | 2013-07-30 | 2013-07-30 | Device for replacing fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203367823U true CN203367823U (en) | 2013-12-25 |
Family
ID=49815542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320460511 Expired - Lifetime CN203367823U (en) | 2013-07-30 | 2013-07-30 | Device for replacing fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203367823U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104348096A (en) * | 2013-07-30 | 2015-02-11 | 国家电网公司 | Device for replacing fuse |
-
2013
- 2013-07-30 CN CN 201320460511 patent/CN203367823U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104348096A (en) * | 2013-07-30 | 2015-02-11 | 国家电网公司 | Device for replacing fuse |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131225 |
|
| CX01 | Expiry of patent term |