CN210894576U - Climbing device of discharging trolley for direct-current high-voltage test - Google Patents
Climbing device of discharging trolley for direct-current high-voltage test Download PDFInfo
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- CN210894576U CN210894576U CN201921269661.9U CN201921269661U CN210894576U CN 210894576 U CN210894576 U CN 210894576U CN 201921269661 U CN201921269661 U CN 201921269661U CN 210894576 U CN210894576 U CN 210894576U
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Abstract
The utility model discloses a climbing device of dolly that discharges for direct current high voltage test, it includes the fixed track guide that sets up of discharge resistance, slope gliding dolly that discharges on the track guide, be located the test standard spare of track guide top, be located pulley, the one end of test standard spare below are fixed the dolly tip of discharging just walks around haulage rope, its rotation end of pulley with haulage rope other end fixed connection's electric block, it is pointed to discharge dolly upper surface one end, the other end of the connecting wire of discharge resistance with the pointed to intercommunication that discharges. The utility model discloses a thereby the automation of dolly that discharges climbs realizes that discharge resistance carries out the residual charge to being tested the article and discharges, has improved direct current high-voltage test's experimental security greatly.
Description
[ technical field ] A method for producing a semiconductor device
The utility model belongs to the technical field of direct current high voltage test device, especially, relate to a climbing device of dolly that discharges for direct current high voltage test.
[ background of the invention ]
The existing direct-current high-voltage submarine cable has the advantages of low line cost, small loss, long transmission distance, high system stability and the like, is fully applied to high-capacity, long-distance and multi-endpoint power transmission projects, and is widely applied to renewable energy source grid connection, distributed power generation grid connection and island power supply.
In order to guarantee that the direct-current high-voltage test of the cable before operation also puts forward corresponding technical requirements, the direct-current cable for long-distance power transmission has large capacitance to ground (a few micro-methods to dozens of micro-methods), after the direct-current withstand voltage test is finished, higher requirements are put forward for the discharge test of the residual charge of the cable, and due to the fact that the residual charge is large and the residual voltage is high (500kV or more), an over-explosion phenomenon, various different potential safety hazards of secondary discharge and the like appear in the early discharge process.
When the submarine cable is subjected to a direct-current high-voltage test, a field test wiring diagram is shown in fig. 1, and the field direct-current high-voltage test device comprises a high-voltage output unit 1a, a current-limiting resistor 2a connected with the high-voltage output unit 1a, a test standard part 3a connected with the current-limiting resistor 2a, a tested submarine cable 4a connected with the test standard part 3a and a discharge resistor 5 a; when the voltage withstand test is carried out, the high-voltage output unit 1a carries out direct-current voltage withstand test on the tested submarine cable 4a through the current-limiting resistor 2a, the test standard component 3a is high-voltage of the tested submarine cable 4a to the ground, and after the voltage withstand test is finished, the discharging resistor 5a carries out residual charge discharging on the tested submarine cable 4a through a discharging trolley climbing mode.
Since the high-voltage test is very dangerous, it is necessary to design an automatic climbing device of a discharge trolley to complete the discharge of the residual charge of the tested object.
[ Utility model ] content
The utility model discloses a main aim at provides a direct current high voltage test is with climbing device of dolly that discharges, thereby realized the automation of the dolly that discharges and climb and realize that discharge resistance carries out remaining electric charge to being tested the article and discharge, improved direct current high voltage test's experimental security greatly.
The utility model discloses a following technical scheme realizes above-mentioned purpose: the utility model provides a climbing device of dolly that discharges for direct current high voltage test, its include discharge resistance, the fixed track guide that sets up of slope the gliding dolly that discharges on the track guide, be located the test standard of track guide top, be located pulley, the one end of test standard below are fixed the dolly tip of discharging just walks around haulage rope, its rotation end of pulley with haulage rope other end fixed connection's electric block, dolly upper surface one end of discharging is provided with the point of discharging, the other end of the connecting wire of discharge resistance with the point intercommunication that discharges.
Furthermore, the discharge resistor is arranged in a mounting seat, and a discharge resistor connecting wire recovery disc is arranged above the mounting seat, so that the discharge resistor connecting wire is automatically recovered.
Furthermore, the discharge trolley is of an upper cover and lower cover structure, one end of the upper cover and one end of the lower cover are hinged together, rollers for clamping the rail guide piece are arranged in the upper cover and the lower cover, and the discharge trolley is mounted on the rail guide piece by locking the other end of the upper cover and the other end of the lower cover through a lock catch.
Furthermore, the upper surface of the discharging trolley is provided with a hinged seat, and one end of the discharging tip is hinged to the hinged seat, so that angle adjustment is realized.
Further, the mounting seat where the discharge resistor is located is connected to the ground, so that the ground connection of the discharge resistor is realized.
Furthermore, the test standard part comprises a high-voltage end grading ring, an adapter plate is arranged below the test standard part and away from the set position of the high-voltage end grading ring, and three stainless steel hanging rings are arranged on the adapter plate; the upper ends of the two rail guide pieces are buckled on stainless steel suspension rings on two sides through safety buckles, hooks are arranged at the lower ends of the two rail guide pieces and hung at one end of a turn buckle, and the other end of the turn buckle is locked on a fixed buckle ring; the middle part is safely buckled with the pulley.
Further, the electric hoist control device also comprises a wireless remote controller for controlling the electric hoist to rotate forwards or backwards or stop or start.
Compared with the prior art, the utility model relates to a climbing device of dolly that discharges for direct current high voltage test's beneficial effect lies in: the device is characterized in that a discharging trolley with rollers is arranged, the discharging trolley is arranged on a nylon pull rod in a sliding mode, the discharging trolley is driven by an electric hoist to automatically ascend and descend, discharging resistance discharges residual charges of a tested piece, the whole testing process can be realized by operating a controller remotely by an operator, and safety, reliability and easiness in control of field direct-current high-voltage tests are greatly improved.
[ description of the drawings ]
FIG. 1 is a schematic diagram of a field DC high voltage test wiring structure;
fig. 2 is a front view of an embodiment of the present invention;
fig. 3 is a schematic side view of an embodiment of the present invention;
the figures in the drawings represent:
1 discharge resistance; 2a rail guide; 3, a discharge trolley; 4, testing a standard part; 5, a pulley; 6, pulling a rope; 7, an electric hoist; 8 discharging the tip; 9, a discharge resistance connecting wire recovery disc; 10 a hinged seat; 11 high-voltage end grading rings; 12 an adapter plate; 13, a turn buckle; 14 remote control.
[ detailed description ] embodiments
Example (b):
referring to fig. 2 to 3, the embodiment is a climbing device 100 of a discharge trolley for a dc high voltage test, which includes a discharge resistor 1, a track guide 2 fixedly disposed in an inclined manner, a discharge trolley 3 sliding on the track guide 2, a test standard 4 located above the track guide 2, a pulley 5 located below the test standard 4, a traction rope 6 having one end fixed to an end of the discharge trolley 3 and passing around the pulley 5, and an electric hoist 7 having a rotation end fixedly connected to the other end of the traction rope 6, wherein one end of an upper surface of the discharge trolley 3 is provided with a discharge tip 8, and the other end of a connection line of the discharge resistor 1 is communicated with the discharge tip 8.
The rail guide 2 may employ a nylon tie bar.
The discharging trolley 3 is of an upper cover structure and a lower cover structure, one end of the upper cover structure is hinged with one end of the lower cover structure, the upper cover structure and the lower cover structure are internally provided with rollers for clamping the track guide piece 2, and the other end of the upper cover structure and the other end of the lower cover structure are locked through a lock catch to achieve installation of the discharging trolley 3 on the track guide piece 2.
The upper surface of the discharging trolley 3 is provided with a hinged seat 10, and one end of the discharging tip 8 is hinged to the hinged seat 10, so that the angle adjustment is realized.
The mount in which the discharge resistor 1 is located is connected to ground.
The testing standard part 4 comprises a high-voltage end equalizing ring 11, an adapter plate 12 is arranged below the testing standard part 4 and away from a set position of the high-voltage end equalizing ring 11, and three stainless steel hanging rings are arranged on the adapter plate 12; the upper ends of the two track guiding pieces 2 are buckled on stainless steel suspension rings on two sides through safety buckles, hooks are arranged at the lower ends of the two track guiding pieces, the hooks are hung at one end of a turn buckle 13, the other end of the turn buckle 13 is locked on a fixed buckle ring, and the turn buckle 13 is adjusted to enable the nylon pull rod 2 to reach a tensioning state; the middle part is safely buckled with an upper pulley 5; the adapter plate 12 is integrally fixed below the designated position of the high-voltage end grading ring 11 by screws.
The embodiment also comprises a wireless remote controller 14 for controlling the electric hoist 7 to rotate forwards or backwards or stop or start.
When the test standard component 4 is completely boosted and then the remote controller 14 is controlled to slowly raise the discharge trolley 3 to a certain position, the discharge point 8 generates an arc discharge phenomenon; when the arc discharge phenomenon disappears, the discharge trolley 3 is controlled to ascend, the arc discharge phenomenon occurs, and the like; when the discharge tip 8 is completely contacted with the high-voltage end grading ring 11, a discharge state during contact is achieved; when the discharge tip 8 and the high-voltage end grading ring 11 do not have the arc discharge phenomenon, the discharge test is finished; the remote controller 14 is controlled to descend the discharging trolley 3, the remote controller 14 of the discharging trolley is switched off, and the power supply of the electric hoist 7 is switched off; and (5) recovering the discharge resistance connecting wire to the discharge resistance connecting wire recovery disc 9, and ending the test.
The climbing device 100 of the discharging trolley for the direct-current high-voltage test is provided with the discharging trolley with the roller, the discharging trolley can be arranged on a nylon pull rod in a sliding mode, then the discharging trolley is driven by the electric hoist to automatically ascend and descend, discharging of residual charges of a tested piece by a discharging resistor is achieved, the whole testing process can be achieved by operating a controller at a distance through an operator, and safety, reliability and easiness in control of the field direct-current high-voltage test are greatly improved.
What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.
Claims (7)
1. The utility model provides a climbing device of dolly that discharges for direct current high voltage test which characterized in that: it includes the fixed track guide that sets up of discharge resistance, slope the gliding dolly that discharges on the track guide, be located the test standard piece of track guide top, be located pulley, one end of test standard piece below are fixed the dolly tip of discharging and walk around the haulage rope of pulley, its rotation end with haulage rope other end fixed connection's electric block, dolly upper surface one end of discharging is provided with the point of discharging, the other end of the connecting wire of discharge resistance with the point intercommunication of discharging.
2. The climbing device of the discharging trolley for the direct current high voltage test as claimed in claim 1, characterized in that: the discharge resistor is arranged in a mounting seat, and a discharge resistor connecting wire recovery disc is arranged above the mounting seat, so that the discharge resistor connecting wire is automatically recovered.
3. The climbing device of the discharging trolley for the direct current high voltage test as claimed in claim 1, characterized in that: the discharge trolley is of an upper cover structure and a lower cover structure, one end of the upper cover structure is hinged with one end of the lower cover structure, the upper cover structure and the lower cover structure are internally provided with rollers for clamping the track guide piece, and the discharge trolley is mounted on the track guide piece by locking the other end of the upper cover structure and the other end of the lower cover structure through a lock catch.
4. The climbing device of the discharging trolley for the direct current high voltage test as claimed in claim 1, characterized in that: the upper surface of the discharging trolley is provided with a hinged seat, and one end of the discharging tip is hinged to the hinged seat to achieve angle adjustment.
5. The climbing device of the discharging trolley for the direct current high voltage test as claimed in claim 2, characterized in that: the mounting seat where the discharge resistor is located is connected with the ground, so that the ground connection of the discharge resistor is realized.
6. The climbing device of the discharging trolley for the direct current high voltage test as claimed in claim 1, characterized in that: the test standard part comprises a high-voltage end grading ring, an adapter plate is arranged below the test standard part and away from the set position of the high-voltage end grading ring, and three stainless steel hanging rings are arranged on the adapter plate; the upper ends of the two rail guide pieces are buckled on stainless steel suspension rings on two sides through safety buckles, hooks are arranged at the lower ends of the two rail guide pieces and hung at one end of a turn buckle, and the other end of the turn buckle is locked on a fixed buckle ring; the middle part is safely buckled with the pulley.
7. The climbing device of the discharging trolley for the direct current high voltage test as claimed in claim 1, characterized in that: the electric hoist is characterized by also comprising a wireless remote controller for controlling the electric hoist to rotate forwards or reversely or stop or start.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921269661.9U CN210894576U (en) | 2019-08-07 | 2019-08-07 | Climbing device of discharging trolley for direct-current high-voltage test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921269661.9U CN210894576U (en) | 2019-08-07 | 2019-08-07 | Climbing device of discharging trolley for direct-current high-voltage test |
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| Publication Number | Publication Date |
|---|---|
| CN210894576U true CN210894576U (en) | 2020-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921269661.9U Active CN210894576U (en) | 2019-08-07 | 2019-08-07 | Climbing device of discharging trolley for direct-current high-voltage test |
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| CN (1) | CN210894576U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112345893A (en) * | 2020-09-25 | 2021-02-09 | 国网浙江省电力有限公司舟山供电公司 | Large-capacity direct-current voltage withstand test platform with automatic discharge safety grounding device |
| CN113049930A (en) * | 2021-03-19 | 2021-06-29 | 中国长江电力股份有限公司 | Electric discharge device and discharge method for direct-current withstand voltage test |
-
2019
- 2019-08-07 CN CN201921269661.9U patent/CN210894576U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112345893A (en) * | 2020-09-25 | 2021-02-09 | 国网浙江省电力有限公司舟山供电公司 | Large-capacity direct-current voltage withstand test platform with automatic discharge safety grounding device |
| CN113049930A (en) * | 2021-03-19 | 2021-06-29 | 中国长江电力股份有限公司 | Electric discharge device and discharge method for direct-current withstand voltage test |
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