CN219417552U - Blocking device for loop maintenance and debugging - Google Patents
Blocking device for loop maintenance and debugging Download PDFInfo
- Publication number
- CN219417552U CN219417552U CN202320515649.1U CN202320515649U CN219417552U CN 219417552 U CN219417552 U CN 219417552U CN 202320515649 U CN202320515649 U CN 202320515649U CN 219417552 U CN219417552 U CN 219417552U
- Authority
- CN
- China
- Prior art keywords
- box seat
- blocking
- binding post
- circuit
- button
- Prior art date
- 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.)
- Active
Links
Landscapes
- Patch Boards (AREA)
Abstract
The utility model discloses a blocking device for loop maintenance and debugging, which comprises a box seat, power supply equipment, a blocking module, a control module and a display module; the blocking module is arranged on the inner side of the third layer of the box seat; the blocking module comprises an incoming line binding post and an outgoing line binding post which are opposite to and fixed on two sides in the box seat; the positions of the box seat, which are opposite to the incoming wiring terminal and the outgoing wiring terminal, are provided with wiring ports; the incoming wire binding post is connected to the on-off device through the output end of the main contactor; the on-off device is connected to the outgoing line binding post; each way that the main contactor is connected with the on-off switch is provided with a voltage transformer; the blocking device for loop maintenance and debugging can be used for blocking or breaking the loop integrally and monitoring whether the front-end voltage is in a normal range, and the two groups of blocking devices are matched for use and can be used for cutting off or putting into the whole section of equipment or a line to be debugged; and the protection circuit triggering environment can be partially simulated.
Description
Technical Field
The utility model particularly relates to a blocking device for loop maintenance and debugging, and belongs to the technical field of loop maintenance and debugging equipment.
Background
After the power grid system is installed, whether the instrument equipment installation, wiring, power supply and interlocking equipment in the instrument system are complete or not is carefully checked according to a design drawing, and particularly, a secondary loop is required to be debugged so as to ensure that each power grid can work in a normal state after power-on; in addition, in the process of overhauling and debugging after overhauling, on-off control of a loop is needed, namely, the input and output voltage of equipment to be debugged in the secondary loop is required to be debugged until the equipment works in a normal state, in the prior art, the primary side loop and the secondary side tail end loop are generally cut off for overhauling, the primary side blocking faces high voltage risks, and when phase failure cannot be simulated, whether the protection circuit is started or not is debugged.
Disclosure of Invention
In order to solve the problems, the utility model provides a blocking device for loop maintenance and debugging, which can block and supply power to a loop, monitor whether the front-end voltage is in a normal range, and provide a triggering environment for a protection circuit.
The blocking device for loop maintenance and debugging of the utility model comprises
A box base; the box seat is of a four-layer structure made of insulating materials;
the power supply equipment is arranged on the bottom layer at the inner side of the box seat; the power supply equipment comprises a 48V storage battery; the output end of the storage battery is connected to the charge-discharge circuit; the charging end of the charging and discharging circuit is connected to the charging interface; the discharge end of the charging and discharging circuit is connected to a 220V inverter; the 220V-48V adapter charges the storage battery through the charging interface and the charging and discharging circuit, and when discharging, the 48V direct current is inverted into 220V alternating current through the 220V inverter to supply power to the front end; the power supply mode is not interfered by the outside, and can provide the electric energy required by blocking, throwing, controlling, displaying and the like;
a blocking module; the blocking module is arranged on the inner side of the third layer of the box seat; the blocking module comprises an incoming line binding post and an outgoing line binding post which are opposite to and fixed on two sides in the box seat; the positions of the box seat, which are opposite to the incoming wiring terminal and the outgoing wiring terminal, are provided with wiring ports; the incoming wire binding post is connected to the on-off device through the output end of the main contactor; the on-off device is connected to the outgoing line binding post; each way that the main contactor is connected with the on-off switch is provided with a voltage transformer;
the control module comprises a voltage stabilizing source for supplying power to the whole control module, a power button, a main controller, a start button and a stop button of a start-stop circuit, and the start button and the stop button are arranged on the inner side of a second layer of the box seat; one end of the starting circuit is connected to the auxiliary contact of the main contactor, and the other end of the starting circuit is connected to the output end of the 220V inverter; the 220V inverter output end is also connected to the voltage stabilizing source input end; the voltage transformer is connected to the main controller through a protector; the voltage stabilizing source, the power button, the main controller and the start button and the stop button of the start-stop circuit are arranged on the second layer of the box seat; the main controller is respectively and electrically connected with the power button and the inverter control end; 220V is directly used as an auxiliary contact (coil) power supply of the main contactor, 220V alternating current supplies power to the auxiliary contact after a start button is pressed, the coil of the main contact is controlled to be attracted after the auxiliary contact is electrified, the main contact is connected, in addition, 220V power output by the 220V inverter is sent to a voltage stabilizing source, 3.3V and 12V direct current are output through AC-DC conversion of the voltage stabilizing source, and therefore power is supplied to a main controller and a digital display instrument;
a display module; the display module comprises a plurality of groups of digital display meters which are embedded and fixed on the top layer of the box seat; the digital display instrument is connected to the main controller; the voltage transformer collects voltage values and is connected to the main controller through the protection circuit, and the main controller displays the voltage values of all phases through the digital display instrument.
When overhauling and debugging, firstly disconnecting the contactor at the primary side, and connecting the wire inlet wiring terminal and the wire outlet wiring terminal of the blocking module in series to the secondary circuit; according to the adjustment object, selecting a serial connection position, for example, when debugging is carried out after the maintenance of the protection equipment, connecting a blocking module in series to the front end of the protection equipment, before the debugging, enabling a main contactor and a branch on-off device to be in an off state, then firstly switching off one path or a plurality of paths of branch on-off devices according to the simulation requirement, and then switching on the main contactor, so as to simulate the off state of one path or a plurality of paths of phase failure or ground wires, and judging whether the protection state of the protector is switched on; when other equipment is required to be debugged and overhauled, the blocking module is connected to the front end and/or the rear end of the equipment to be debugged and overhauled, so that the voltage entering the equipment to be debugged and the voltage of the equipment to be debugged are monitored, whether the equipment to be debugged works in a normal state can be judged, or the equipment can be monitored through external monitoring equipment (such as an infrared temperature measuring imaging instrument and the like), when the equipment is debugged, the equipment can be clicked, namely, after a start button is pressed, a stop button is quickly pressed when abnormality occurs, and a main contactor can be quickly disconnected through the stop button or a power button, so that the burnout phenomenon of the debugging equipment is avoided.
Further, the on-off device is an electric leakage breaker, the electric leakage protector can be manually cut off or switched on, and the electric leakage protector can be automatically cut off when the electric leakage current in the circuit exceeds a preset value.
Further, the box seat is provided with a roll-over door or a pull door at the wiring port, and after wiring is completed, the roll-over door or the pull door can close the wiring port to avoid exposing the wiring terminal.
Further, grid type guide groove plates are arranged on two sides of the box seat opposite to the incoming line binding post and the outgoing line binding post, and the conductive parts can be protected on the inner sides of the guide grooves through the grid type guide groove plates.
Compared with the prior art, the blocking device for loop maintenance and debugging can be used for blocking or breaking the loop integrally and monitoring whether the front-end voltage is in a normal range, and the two groups of blocking devices are matched for use, so that the whole section of equipment or a line to be debugged can be cut off or put into operation; and the protection circuit triggering environment can be partially simulated.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present utility model.
Fig. 2 is a schematic diagram of the overall structure of the box base of the present utility model.
Fig. 3 is a schematic diagram of a connection structure of each module according to the present utility model.
Detailed Description
Examples
The blocking device for loop maintenance and repair as shown in fig. 1 to 3 comprises
A box base 1; the box seat 1 is of a four-layer structure made of insulating materials;
the power supply equipment is arranged on the bottom layer at the inner side of the box seat; the power supply apparatus includes a 48V battery 2; the output end of the storage battery 2 is connected to the charge-discharge circuit 3; the charging end of the charging and discharging circuit 3 is connected to the charging interface 4; the discharging end of the charging and discharging circuit 3 is connected to the 220V inverter 4; the 220V-48V adapter charges the storage battery through the charging interface and the charging and discharging circuit, and when discharging, the 48V direct current is inverted into 220V alternating current through the 220V inverter to supply power to the front end; the power supply mode is not interfered by the outside, and can provide the electric energy required by blocking, throwing, controlling, displaying and the like;
a blocking module; the blocking module is arranged on the inner side of the third layer of the box seat; the blocking module comprises an incoming line binding post 5 and an outgoing line binding post 6 which are opposite to and fixed on two sides in the box seat; the positions of the box seat 1, which are opposite to the incoming wire binding post 5 and the outgoing wire binding post 6, are provided with wiring ports 7; the incoming wire binding post 5 is connected to the on-off switch 9 through the output end of the main contactor 8; the on-off switch 8 is connected to the outgoing terminal 6; each way that the main contactor 8 and the sub-switch 9 are connected is provided with a voltage transformer 10;
the control module comprises a voltage stabilizing source 11, a power button 12, a main controller 13 and a start button 141 and a stop button 142 of a start-stop circuit 14, which are used for supplying power to the whole control module, and the start button 141 and the stop button 142 are arranged on the inner side of the second layer of the box seat 1; the start-stop circuit 14 adopts the existing contactor auxiliary contact start-stop circuit, and realizes electrifying and closing self-locking after a start button is pressed until the start-stop circuit is disconnected after a stop button is pressed; one end of the start-stop circuit 14 is connected to an auxiliary contact of the main contactor 8, and the other end of the start-stop circuit is connected to the output end of the 220V inverter 4; the output end of the 220V inverter 4 is also connected to the input end of the voltage stabilizing source 11; the voltage transformer 10 is connected to the main controller 13 through a protector; the voltage stabilizing source 11, the power button 12, the main controller 13 and the start button 141 and the stop button 142 of the start-stop circuit 14 are arranged on the second layer of the box seat 1; the main controller 13 is electrically connected with a power button 14 and a control end of the inverter 4 respectively; when the power button is pressed, the controller controls the 220V inverter to be started; 220V is directly used as an auxiliary contact (coil) power supply of the main contactor, 220V alternating current supplies power to the auxiliary contact after a start button is pressed, the coil of the main contact is controlled to be attracted after the auxiliary contact is electrified, the main contact is connected, in addition, 220V power output by the 220V inverter is sent to a voltage stabilizing source, 3.3V and 12V direct current are output through AC-DC conversion of the voltage stabilizing source, and therefore power is supplied to a main controller and a digital display instrument;
a display module; the display module comprises a plurality of groups of digital display meters 15 which are embedded and fixed on the top layer of the box seat; the digital display instrument 15 is connected to the main controller 13; the voltage transformer collects voltage values and is connected to the main controller through the protection circuit, and the main controller displays the voltage values of all phases through the digital display instrument.
When overhauling and debugging, firstly disconnecting the contactor at the primary side, and connecting the wire inlet wiring terminal and the wire outlet wiring terminal of the blocking module in series to the secondary circuit; according to the adjustment object, selecting a serial connection position, for example, when debugging is carried out after the maintenance of the protection equipment, connecting a blocking module in series to the front end of the protection equipment, before the debugging, enabling a main contactor and a branch on-off device to be in an off state, then firstly switching off one path or a plurality of paths of branch on-off devices according to the simulation requirement, and then switching on the main contactor, so as to simulate the off state of one path or a plurality of paths of phase failure or ground wires, and judging whether the protection state of the protector is switched on; when other equipment is required to be debugged and overhauled, the blocking module is connected to the front end and/or the rear end of the equipment to be debugged and overhauled, so that the voltage entering the equipment to be debugged and the voltage of the equipment to be debugged are monitored, whether the equipment to be debugged works in a normal state can be judged, or the equipment can be monitored through external monitoring equipment (such as an infrared temperature measuring imaging instrument and the like), when the equipment is debugged, the equipment can be clicked, namely, after a start button is pressed, a stop button is quickly pressed when abnormality occurs, and a main contactor can be quickly disconnected through the stop button or a power button, so that the burnout phenomenon of the debugging equipment is avoided.
The on-off device 10 is an earth leakage breaker, the earth leakage protector can be manually cut off or switched on, and the earth leakage protector can be automatically cut off when the earth leakage current in the circuit exceeds a preset value.
The box seat 1 is provided with a roll-over door or a pull door at the wiring port, and after wiring is completed, the roll-over door or the pull door can close the wiring port to avoid exposing the wiring terminal.
The two sides of the box seat 1 are opposite to the incoming wiring terminal and the outgoing wiring terminal, and are provided with grid type guide groove plates 16, and the conductive parts can be protected inside the guide grooves through the grid type guide groove plates.
The above embodiments are merely preferred embodiments of the present utility model, and all changes and modifications that come within the meaning and range of equivalency of the structures, features and principles of the utility model are therefore intended to be embraced therein.
Claims (4)
1. The utility model provides a return circuit overhauls debugging and uses blocking device which characterized in that: comprising
A box base; the box seat is of a four-layer structure made of insulating materials;
the power supply equipment is arranged on the bottom layer at the inner side of the box seat; the power supply equipment comprises a 48V storage battery; the output end of the storage battery is connected to the charge-discharge circuit; the charging end of the charging and discharging circuit is connected to the charging interface; the discharge end of the charging and discharging circuit is connected to a 220V inverter;
a blocking module; the blocking module is arranged on the inner side of the third layer of the box seat; the blocking module comprises an incoming line binding post and an outgoing line binding post which are opposite to and fixed on two sides in the box seat; the positions of the box seat, which are opposite to the incoming wiring terminal and the outgoing wiring terminal, are provided with wiring ports; the incoming wire binding post is connected to the on-off device through the output end of the main contactor; the on-off device is connected to the outgoing line binding post; each way that the main contactor is connected with the on-off switch is provided with a voltage transformer;
the control module comprises a voltage stabilizing source for supplying power to the whole control module, a power button, a main controller, a start button and a stop button of a start-stop circuit, and the start button and the stop button are arranged on the inner side of a second layer of the box seat; one end of the starting circuit is connected to the auxiliary contact of the main contactor, and the other end of the starting circuit is connected to the output end of the 220V inverter; the 220V inverter output end is also connected to the voltage stabilizing source input end; the voltage transformer is connected to the main controller through a protector; the voltage stabilizing source, the power button, the main controller and the start button and the stop button of the start-stop circuit are arranged on the second layer of the box seat; the main controller is respectively and electrically connected with the power button and the inverter control end;
a display module; the display module comprises a plurality of groups of digital display meters which are embedded and fixed on the top layer of the box seat; and the digital display instrument is connected to the main controller.
2. The blocking device for circuit inspection and debugging according to claim 1, wherein: the on-off device is an electric leakage breaker.
3. The blocking device for circuit inspection and debugging according to claim 1, wherein: the box seat is provided with a roll-over door or a pull door at the junction.
4. The blocking device for circuit inspection and debugging according to claim 1, wherein: grid type guide groove plates are arranged on two sides of the box seat opposite to the incoming wire binding post and the outgoing wire binding post.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320515649.1U CN219417552U (en) | 2023-03-16 | 2023-03-16 | Blocking device for loop maintenance and debugging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320515649.1U CN219417552U (en) | 2023-03-16 | 2023-03-16 | Blocking device for loop maintenance and debugging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219417552U true CN219417552U (en) | 2023-07-25 |
Family
ID=87206394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320515649.1U Active CN219417552U (en) | 2023-03-16 | 2023-03-16 | Blocking device for loop maintenance and debugging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219417552U (en) |
-
2023
- 2023-03-16 CN CN202320515649.1U patent/CN219417552U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111452665B (en) | Intelligent charging and battery replacing cabinet for electric bicycle | |
| CN102668305A (en) | Battery energy storage system with short circuit protection, and method | |
| CN104167980A (en) | Photovoltaic system with intelligent shut-off function | |
| CN111987791B (en) | Battery module control device and method, power supply equipment and system | |
| CN201909821U (en) | Spare power automatic switching device tester | |
| CN109274182A (en) | The long-range integrated monitoring platform of DC power supply | |
| CN109613348A (en) | A kind of high-voltaghe compartment tooling automatic detection device | |
| CN107611794A (en) | Fire-fighting power distribution cabinet based on bas and fas monitoring systems | |
| CN219417552U (en) | Blocking device for loop maintenance and debugging | |
| CN210927077U (en) | Residual current protection device with uninterrupted power supply test function | |
| CN207066733U (en) | A kind of secondary conditioning device of switch cubicle mechanical characteristic test | |
| CN207304150U (en) | Secondary equipment in power system dual power supply comprehensive management apparatus | |
| CN102751783A (en) | Switching circuit for power supplies of high-power diesel engine generator and transformer | |
| CN109586400A (en) | A kind of direct current cabinet circuit | |
| CN215681798U (en) | Voltage parallel device capable of automatically switching states | |
| CN202166698U (en) | Transformer protection matrix test device | |
| CN209894928U (en) | Device for simulating 10kV high-voltage vacuum permanent magnet circuit breaker | |
| CN107121619B (en) | A kind of electric substation's route protection service without power-off device and repair method | |
| CN219576692U (en) | Electric power system and emergency control power supply device thereof | |
| CN113497467A (en) | High-voltage switching cabinet and high-voltage switching method between power supply equipment and inverter | |
| CN220043057U (en) | Low-voltage power-off alarm | |
| CN205986314U (en) | Emergent block terminal of intelligence | |
| CN213213085U (en) | Submersible pump test power supply circuit for nuclear power station and power supply device thereof | |
| CN214542947U (en) | Matching circuit of switching-on and switching-off monitoring loop of imported GCB control cabinet and domestic operation box | |
| CN108281966B (en) | Dual-power standby power supply operation control system for public building residential distribution room |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |