CN211955549U - No-load live debugging transmission device of low-voltage switch cabinet - Google Patents
No-load live debugging transmission device of low-voltage switch cabinet Download PDFInfo
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- CN211955549U CN211955549U CN202020463907.2U CN202020463907U CN211955549U CN 211955549 U CN211955549 U CN 211955549U CN 202020463907 U CN202020463907 U CN 202020463907U CN 211955549 U CN211955549 U CN 211955549U
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Abstract
The utility model discloses a no-load electrified debugging transmission of low-voltage switchgear, including a transmission case, an inlet wire cable and two cables of being qualified for the next round of competitions. A miniature circuit breaker and three contactors are arranged in the transmission case, so that power switching can be completed quickly and accurately in the debugging process, the debugging power supply can be automatically cut off in the fault state of the tested equipment, and the safety and reliability of the debugging process are ensured. Therefore, the problems of poor safety and low working efficiency caused by large wiring randomness and no fixing process in the prior art are solved. The utility model discloses the structure is light, convenient to carry, through technical theory analysis and field test prove, the utility model discloses the mode method is high-efficient, and is convenient, safe, reliable, can guarantee traditional test data and process, and the mechanical shutting relation between equipment trouble and each equipment of the safe efficient detection power supply and distribution system primary and secondary equipment again provides effective assurance for the disposable safe power transmission of low voltage distribution system.
Description
Technical Field
The utility model relates to a power supply box, especially a no-load electrified debugging transmission of low-voltage distribution cabinet.
Background
Along with the rapid development of economy in recent years, the high dependence on electric power energy sources enables the rapid development of electric power related industries. It is important to ensure safe, reliable and stable operation of the power equipment. When the low-voltage switch cabinet is used for idle-load live debugging transmission, power failure needs to be simulated, two power supplies are switched repeatedly, and the existing low-voltage power supply and distribution system debugging still continues the original detection process and detection equipment.
Some of each construction team have not the box, start the debugging after working a telephone switchboard with two sets of miniature circuit breakers promptly, and some utilize the interim wiring of construction block terminal. Therefore, the wiring randomness is high, the phenomena of wrong wiring and missing wiring occur, and the power-on/power-off mode cannot be simulated quickly and accurately during debugging; moreover, a fixed process is not available, and when a new project is debugged, the new project needs to be connected and spliced again, so that the working efficiency is low; in addition, the low-voltage power supply and distribution system has the characteristics of low voltage, more equipment connection points and higher failure probability, particularly, the low-voltage primary bus short-circuit grounding failure is caused by the left objects in the cabinet before formal power transmission, and if the transmission device is debugged, the safety of the debugging process is difficult to guarantee.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a fixed connection, sign are clear, repeatedly usable, the empty load live debugging transmission of safe efficient low-voltage switchgear.
The utility model discloses a realize through following technical scheme:
the no-load live debugging transmission device for the low-voltage switch cabinet comprises a transmission case, an incoming cable and two outgoing cables, wherein the three cables are respectively connected into the transmission case through three cable holes in the bottom of the transmission case, and the transmission case comprises a transmission case shell, a group of miniature circuit breakers, three contactors, three indicator lamps, a change-over switch, four buttons and a door lock.
The group of miniature circuit breakers are main incoming line power switches, a first contactor of the three contactors is used for switching on and off the main incoming line power supply, and a second contactor and a third contactor are respectively used for switching on and off the first outgoing line power supply and switching on and off the second outgoing line power supply.
The three indicator lights, the four simple buttons, the rotary button and the door lock are all fixedly arranged on the transmission box door.
And a first indicator lamp of the three indicator lamps is connected to the upper opening of the miniature circuit breaker through a first fuse, and a second indicator lamp and a third indicator lamp are respectively connected in series into a first outgoing line control loop and a second outgoing line control loop.
And the change-over switch controls the switching-on and switching-off of the incoming line power supply and is connected with the lower port of the miniature circuit breaker through a second fuse.
And a first button and a second button of the four simple buttons respectively control the first outgoing line power supply to be switched on and off, and a third button and a fourth button respectively control the second outgoing line power supply to be switched on and off.
And one incoming cable is used for connecting an external power supply, and two outgoing cables are respectively used for connecting a first path of power supply and a second path of power supply of the tested low-voltage switch cabinet.
The utility model has the advantages as follows:
the transmission device for the no-load live debugging of the low-voltage switch cabinet has the advantages that the three cables are connected and are simple to use and easy to operate, and the transmission device can be operated by one person in a monitoring way without any other tools; the transmission case is simple in internal structure and components and is provided with a group of miniature circuit breakers and three contactors, and during debugging, the actions of the contactors can quickly and accurately complete the switching of incoming and outgoing line power supplies and simulate a power-on/power-off mode; the miniature circuit breaker enables the device to be tested to automatically cut off the debugging power supply in a fault state, and the safety and reliability of the debugging process are ensured.
The utility model discloses the structure is light, convenient to carry, through technical theory analysis and field test prove, the utility model discloses the mode method is high-efficient, and is convenient, safe, reliable, can guarantee traditional test data and process, and the mechanical shutting relation between equipment trouble and each equipment of safe efficient detection power supply and distribution system primary and secondary equipment again. The method provides effective guarantee for one-time safe power transmission of a low-voltage power distribution system.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic circuit diagram of the transmission case of the present invention;
in the figure, 10 is a transmission case, 11 is an incoming cable, 12 is an outgoing cable, 13 is a transmission case shell, 14 is a door lock, 20 is a miniature circuit breaker, 21 is a first contactor, 22 is a second contactor, 23 is a third contactor, 30 is a first indicator light, 31 is a first fuse, 32 is a second fuse, 33 is a change-over switch, 34 is a first button, 35 is a second button, 36 is a third button, 37 is a fourth button, 38 is a second indicator light, and 39 is a third indicator light.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
The utility model relates to a debugging process that solves prior art existence does not have special debugging transmission and can not simulate fast accurately when the debugging that causes and stop power transmission mode, work efficiency low and the problem that the security can not guarantee, provides a low-voltage distribution cabinet unloaded electrified debugging transmission, including a transmission case 10, an inlet wire cable 11 and two outlet cable 12, as shown in fig. 1. Wherein, three cables are respectively connected into the transmission case 10 through three cable holes at the bottom of the transmission case 10. The incoming cable 11 is used for connecting an external power supply, and the outgoing cable 12 is respectively used for connecting a first path of power supply and a second path of power supply of the tested low-voltage switch cabinet. The transmission box door is provided with three indicating lamps, a change-over switch, four buttons and a door lock.
As shown in fig. 2, the miniature circuit breaker 20 is used as a main incoming line power switch, the first contactor 21 is used for switching on and off the main incoming line power, and the second contactor 22 and the third contactor 23 are respectively used for switching on and off the first outgoing line power and switching on and off the second outgoing line power; the first indicator light 30 is connected to the upper port of the miniature circuit breaker 20 through the first fuse 31, and the second indicator light 38 and the third indicator light 39 are respectively connected in series to the first outgoing line and the second outgoing line control loop; the change-over switch 33 controls the incoming line power supply to be switched on and off, and is connected with the lower port of the miniature circuit breaker 20 through the second fuse 32; the first button 34 and the second button 35 respectively control the first outgoing line power supply to be switched on and off, and the third button 36 and the fourth button 37 respectively control the second outgoing line power supply to be switched on and off.
During debugging, the incoming cable 11 is connected to a temporary construction power supply point or a generator according to corresponding phase colors, the outgoing cable 12 is connected to the main incoming switch power supply side of the tested low-voltage switch cabinet according to one path and two paths respectively according to corresponding phase colors of a main bus, power is transmitted to the transmission case to be debugged, and after the upper phase and the line voltage of the miniature circuit breaker 20 in the transmission case are checked to be normal by using a universal meter; and closing the miniature circuit breaker 20, and rotating the change-over switch 33 on the door of the transmission case 10 to pull in the first contactor 21. After the test is correct, an operator follows the command of a transmission responsible person, the second button 35 and the fourth button 37 are used for respectively operating and attracting the second contactor 22 and the third contactor 23, and the power is transmitted to the main switch power supply side of the tested low-voltage switch cabinet.
In order to ensure the safety of debugging personnel, the debugging main loop is arranged in the box body, and a door lock 14 is further arranged on the door of the transmission box 10 to forbid non-working personnel to open the transmission box door. Debugging personnel only operate the control part on the transmission case 10 door, effectively isolate the danger area from the operation area, guaranteed staff's personal safety.
The utility model controls the first contactor 21, the second contactor 22 and the third contactor 23 to act through the change-over switch 33, the first button 34, the second button 35, the third button 36 and the fourth button 37, so that the switching of incoming and outgoing line power supplies can be completed quickly and accurately, and the power-on/off mode is simulated; the miniature circuit breaker 20 enables the device to be tested to automatically cut off the debugging power supply in a fault state, and ensures that the debugging process can be carried out safely and reliably.
The above description is only for the purpose of illustrating the general principles of the present invention and should not be taken as limiting the invention, but is intended to cover all modifications and equivalents thereof that may fall within the scope of the appended claims.
Claims (6)
1. The no-load live debugging transmission device for the low-voltage switch cabinet is characterized by comprising a transmission box, an incoming cable and two outgoing cables, wherein the three cables are respectively connected into the transmission box through three cable holes in the bottom of the transmission box, and the transmission box comprises a shell, a group of miniature circuit breakers, three contactors, three indicator lamps, a change-over switch, four buttons and a door lock.
2. The no-load live debugging transmission device of a low-voltage switch cabinet according to claim 1, wherein the group of miniature circuit breakers are main incoming line power switches, a first contactor of the three contactors is used for switching on and off the main incoming line power, and a second contactor and a third contactor are respectively used for switching on and off a first outgoing line power and a second outgoing line power.
3. The no-load live debugging transmission device of a low-voltage switch cabinet according to claim 1, wherein a first indicator lamp of the three indicator lamps is connected to an upper port of the miniature circuit breaker through a first fuse, and a second indicator lamp and a third indicator lamp are respectively connected in series to the first outgoing line control loop and the second outgoing line control loop.
4. The low-voltage switch cabinet no-load live debugging transmission device of claim 1, wherein the change-over switch controls the switching on and off of an incoming power supply and is connected to the lower port of the miniature circuit breaker through a second fuse.
5. The no-load live debugging transmission device for the low-voltage switch cabinet according to claim 1, wherein a first button and a second button of the four buttons respectively control the switching on and off of the first outgoing line power supply, and a third button and a fourth button respectively control the switching on and off of the second outgoing line power supply.
6. The no-load live debugging transmission device for the low-voltage switch cabinet according to claim 1, wherein one incoming cable is used for connecting with an external power supply, and the two outgoing cables are respectively used for connecting with a first power supply and a second power supply of the tested low-voltage switch cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020463907.2U CN211955549U (en) | 2020-03-31 | 2020-03-31 | No-load live debugging transmission device of low-voltage switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020463907.2U CN211955549U (en) | 2020-03-31 | 2020-03-31 | No-load live debugging transmission device of low-voltage switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211955549U true CN211955549U (en) | 2020-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020463907.2U Active CN211955549U (en) | 2020-03-31 | 2020-03-31 | No-load live debugging transmission device of low-voltage switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211955549U (en) |
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2020
- 2020-03-31 CN CN202020463907.2U patent/CN211955549U/en active Active
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