CN211905430U - Auxiliary grounding device for line parameter test - Google Patents
Auxiliary grounding device for line parameter test Download PDFInfo
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- CN211905430U CN211905430U CN201921683857.2U CN201921683857U CN211905430U CN 211905430 U CN211905430 U CN 211905430U CN 201921683857 U CN201921683857 U CN 201921683857U CN 211905430 U CN211905430 U CN 211905430U
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Abstract
The utility model relates to a measure electrical variable device field, in particular to an auxiliary grounding device for circuit parameter testing. The two-phase double-throw disconnecting link comprises a tester voltage connecting terminal, a tester current connecting terminal, a test line voltage connecting terminal, a test line current connecting terminal and a grounding terminal; the tester voltage connecting terminal and the tester current connecting terminal are respectively connected with a voltage terminal and a current terminal of the tester through test wires, the test line voltage connecting terminal and the test line current connecting terminal are respectively connected with a voltage terminal and a current terminal of a test line through connecting wires, and the grounding terminal is connected with the ground through a copper wire. The utility model provides a line parameter test trades line process complex operation's problem, reduces the line response and leads to the danger of the person electric shock, improves line parameter field test's work efficiency and security.
Description
Technical Field
The utility model relates to a measure electrical variable device field, in particular to an auxiliary grounding device for circuit parameter testing.
Background
At present, manual wiring is adopted for field test of power transmission line parameters, and when line induction is large, insulating gloves are needed to be worn to prevent induction electric shock during wiring and grounding operation. In the process of testing the line parameters, the copper wires of the down leads of the phase lines need to be manually dismantled; before testing and changing the wire, the three-phase test down lead is manually grounded, the operation method is complex, potential safety hazards exist, and the condition that the person is subjected to electric shock due to line induction is easy to occur.
In the process of testing line parameters, because each phase line needs to be led down by a double-strand testing line, the double-strand down lead needs to be connected with a current output port and a voltage measurement interface respectively in the testing process, if the double-circuit transmission line is a same-tower double-circuit transmission line, 12 connectors of 6 down leads need to be frequently operated, and the tested line needs to be alternately connected with a testing instrument or grounded. The method is complicated in operation, different phase sequences and voltage and current lines are prone to making mistakes in the wiring process, wiring operation is extremely inconvenient by using the insulating gloves, and the electric shock risk is large.
Some patents provide auxiliary grounding devices aiming at preventing induced electric shock, so that the safety of a wire changing step in the test process is enhanced to a certain extent, but the auxiliary grounding devices have the defects of poor operability, insufficient convenience and the like. To this end, we propose an auxiliary grounding device for line parameter testing.
SUMMERY OF THE UTILITY MODEL
The utility model provides an auxiliary grounding device for line parameter test for solve line parameter test and trade line process complex operation's problem, reduce the danger that the circuit response leads to the person to electrocute, improve line parameter field test's work efficiency and security.
In order to achieve the above object, the utility model adopts the following technical scheme:
an auxiliary grounding device for line parameter testing comprises three two-phase double-throw switches and an insulating plate, wherein the three two-phase double-throw switches are arranged on the insulating plate in parallel side by side, and each two-phase double-throw switch comprises a tester voltage connecting terminal, a tester current connecting terminal, a test line voltage connecting terminal, a test line current connecting terminal and two grounding terminals;
the tester voltage connecting terminal and the tester current connecting terminal are respectively connected with a voltage terminal and a current terminal of the tester through test wires, the test line voltage connecting terminal and the test line current connecting terminal are respectively connected with a voltage terminal and a current terminal of a test line through connecting wires, and the grounding terminal is connected with the ground through a copper wire.
Furthermore, a porcelain insulating connecting block is sleeved on the operating rod of the two-phase double-throw disconnecting link, and a bulge is arranged on the porcelain insulating connecting block.
Further, still include the insulator spindle, the insulator spindle includes holds portion and vertical pole portion, and the lower edge of vertical pole portion is equipped with the recess that matches with the protruding of porcelain insulation connecting block.
Furthermore, the insulating plate is made of epoxy resin insulating materials, and 4 bolts are arranged on the insulating plate.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the utility model discloses a three double-phase double-throw switch parallel arrangement side by side is on the insulation board, when the staff trades the line, stirs the control rod of double-phase double-throw switch down, makes circuit and ground intercommunication that awaits measuring, prevents that the staff from electrocuteeing, reinforcing staff's work efficiency and security. Adopt double-phase double-throw switch to make the principle that the power of the same kind was two way circuit power supplies, make the utility model discloses can reduce the staff greatly and trade the line in-process at line parameter test, trade line complex operation's problem. In the test process, the test current and voltage do not pass through the ground, and the test data are more accurate.
2. This device has still included the insulator spindle, and the insulator spindle includes holds portion and vertical pole portion, and the recess that the lower edge of vertical pole portion was equipped with the protruding matching with the porcelain insulation connecting block of control rod combines together through the recess of insulator spindle and the arch of control rod, makes the insulator spindle drive the control rod and rotates, further increases staff's security.
Drawings
FIG. 1 is a front view of an auxiliary grounding device for line parametric testing;
FIG. 2 is a front view of a two-phase double throw switch of an auxiliary grounding device for line parametric testing;
FIG. 3 is a side view of a two-phase double throw switch of an auxiliary grounding device for line parametric testing;
FIG. 4 is a front view of a joystick of an auxiliary grounding device for line parameter testing;
wherein: 1-tester voltage connection terminal; 2-tester current connection terminals; 3-test line voltage connection terminals; 4-testing the line current connection terminals; 5-a ground terminal; 6, insulating plates; 7-porcelain insulation connecting blocks; 9-a hand grip; 10-a vertical rod portion; 11-grooves.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The following are embodiments of the present invention:
as shown in fig. 1, 2 and 3, an auxiliary grounding device for line parameter testing comprises three double-phase double-throw switches and an insulating plate 6, wherein the insulating plate 6 is made of epoxy resin insulating materials, the three double-phase double-throw switches are arranged on the insulating plate 6 in parallel side by side, a control rod of each double-phase double-throw switch is sleeved with a porcelain insulating connecting block 7, and a protrusion is arranged on the porcelain insulating connecting block 7.
As shown in fig. 4, the device further comprises an insulating rod, the insulating rod comprises a hand holding part 9 and a vertical rod part 10, and the lower edge of the vertical rod part 10 is provided with a groove 11 matched with the protrusion of the porcelain insulating connecting block 7.
The two-phase double throw switch includes a tester voltage connection terminal 1, a tester current connection terminal 2, a test line voltage connection terminal 3, a test line current connection terminal 4, and two ground terminals 5. Tester voltage connection terminals 1 are UA, UB, UC, and tester current connection terminals 2 are IA, IB, IC.
During the use, insulation board 6 passes through the bolt fastening subaerial, tester voltage connection terminal UA, UB, UC pass through the voltage terminal of test wire connection tester respectively, tester current connection terminal IA, IB, IC pass through the current terminal of test wire connection tester respectively, test circuit voltage connection terminal 3 and test circuit current connection terminal 4 pass through the voltage terminal and the current terminal of connecting wire connection test circuit respectively, and ground connection terminal 5 passes through copper line connection ground.
When the line is changed, the operating rods of the three two-phase double-throw disconnecting switches are pulled to the lower part and connected with the grounding terminal 5, so that the test circuit is communicated with the ground, and a tester is prevented from electric shock.
When testing, the operating levers of the three two-phase double-throw disconnecting links are pulled to the upper part and connected with the voltage connecting terminal 1 and the current connecting terminal 2 of the tester, so that the testing circuit is communicated with the tester and is used for testing the current and the voltage of the circuit.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (4)
1. An auxiliary grounding device for line parameter testing is characterized in that: the testing device comprises three two-phase double-throw switches and an insulating plate (6), wherein the three two-phase double-throw switches are arranged on the insulating plate (6) in parallel side by side, and each two-phase double-throw switch comprises a tester voltage connecting terminal (1), a tester current connecting terminal (2), a test line voltage connecting terminal (3), a test line current connecting terminal (4) and two grounding terminals (5);
tester voltage connection terminal (1) and tester current connection terminal (2) are respectively through the voltage terminal and the current terminal of test wire connection tester, test line voltage connection terminal (3) and test line current connection terminal (4) are respectively through the voltage terminal and the current terminal of connecting wire connection test line, ground connection terminal (5) are through copper line connection ground.
2. The auxiliary grounding device for line parameter testing of claim 1, wherein: a porcelain insulating connecting block (7) is sleeved on an operating rod of the two-phase double-throw disconnecting link, and a protrusion is arranged on the porcelain insulating connecting block (7).
3. The auxiliary grounding device for line parameter testing of claim 2, wherein: still include the insulator spindle, the insulator spindle includes holds portion (9) and vertical pole portion (10), the lower edge of vertical pole portion (10) be equipped with protruding assorted recess (11) of insulating connecting block of porcelain (7).
4. The auxiliary grounding device for line parameter testing of claim 3, wherein: the insulating plate (6) is made of epoxy resin insulating materials, and 4 bolts are arranged on the insulating plate (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921683857.2U CN211905430U (en) | 2019-10-09 | 2019-10-09 | Auxiliary grounding device for line parameter test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921683857.2U CN211905430U (en) | 2019-10-09 | 2019-10-09 | Auxiliary grounding device for line parameter test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211905430U true CN211905430U (en) | 2020-11-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921683857.2U Expired - Fee Related CN211905430U (en) | 2019-10-09 | 2019-10-09 | Auxiliary grounding device for line parameter test |
Country Status (1)
| Country | Link |
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| CN (1) | CN211905430U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115616444A (en) * | 2022-09-26 | 2023-01-17 | 国网山东省电力公司淄博供电公司 | Auxiliary grounding device for power transmission line parameter test |
-
2019
- 2019-10-09 CN CN201921683857.2U patent/CN211905430U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115616444A (en) * | 2022-09-26 | 2023-01-17 | 国网山东省电力公司淄博供电公司 | Auxiliary grounding device for power transmission line parameter test |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201110 Termination date: 20211009 |