CN215867004U - Modular experimental wiring instrument of medium voltage contactor - Google Patents
Modular experimental wiring instrument of medium voltage contactor Download PDFInfo
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- CN215867004U CN215867004U CN202121142398.4U CN202121142398U CN215867004U CN 215867004 U CN215867004 U CN 215867004U CN 202121142398 U CN202121142398 U CN 202121142398U CN 215867004 U CN215867004 U CN 215867004U
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Abstract
The utility model provides a combined type medium-voltage contactor test wiring tool which comprises a test operation box and different types of contactor handcart aviation plug-in female plugs, wherein the test operation box and the different types of contactor handcart aviation plug-in female plugs are connected with each other. The test operation box is a cuboid box body and comprises a control power supply, a direct-current control power supply input/output and control loop, an operation panel and a wiring panel; the contactor handcart is connected with the test operation box through a contactor handcart aviation plug. The control power supply, the direct-current control power supply input/output and control loop, the operation panel, the wiring panel and the contact handcart aviation plug are connected in sequence. The utility model can simultaneously carry out switching-on and switching-off operations on a plurality of contactor handcarts and completely separate the test from the switch cabinet; the problem of quick and correct wiring of medium-voltage contactors of different models is solved, and the risks of mistakenly disconnecting the wiring and triggering false alarm or misoperation are eliminated.
Description
Technical Field
The utility model belongs to the technical field of electrical equipment test tools, and particularly relates to a combined type medium-voltage contactor test wiring tool.
Background
The medium-voltage switch cabinet is generally applied to a medium-voltage power distribution system, wherein a medium-voltage contactor body is generally arranged in the medium-voltage switch cabinet by adopting a push-pull trolley, and an aviation plug male plug at the front end of the contactor trolley is connected with a female plug of the switch cabinet, so that the functions of contactor on-off control and contactor state signal feedback are realized. In the periodic maintenance test of the contactor, the switching-on/switching-off action characteristic test of the contactor is required, the switching-on and switching-off performance of the contactor under the condition of different control voltages is verified, and in addition, the interphase voltage resistance of the contactor is required to be checked and the insulation performance is required to be checked in the switching-on state.
In the current industry, a medium-voltage contactor maintenance test is generally carried out in one of the following two ways:
the method comprises the following steps: the contactor is transported to the front position of the switch cabinet, the test extension line is used for connecting the trolley and the switch cabinet, and the switch-on and switch-off control is carried out by accessing a control power supply to the switch panel cabinet, so that the voltage withstand test can be carried out on the parallel connection of the contactors;
the method 2 comprises the following steps: after the contactor is pulled out of the switch cabinet, the contactor is directly connected with a special testing device to carry out switching-on and switching-off control on a single contactor handcart, and the purpose that the contactor is not required to be overhauled by the switch cabinet can be realized.
The above two methods have the following problems in terms of overhaul convenience and efficiency:
the method comprises the following steps: due to the limitation of the test extension line, the handcart test of the contactor can only be carried out in the front area of the switch cabinet, and the conflict with the maintenance sites of other work types and adjacent disc cabinets during maintenance work is caused.
The method 2 comprises the following steps: because the limitation of test device, a plurality of contactor handcart overhauls and can only the serial operation, and efficiency is lower.
In view of the above-mentioned shortcomings of the prior art, there is a need for an improved modular medium voltage contactor test wiring tool.
Disclosure of Invention
The utility model aims to design a combined type medium-voltage contactor test wiring tool, which solves the problem of quick and correct wiring of medium-voltage contactors of different models, and eliminates the risks of mistaken wiring disassembly and triggering of false alarm or misoperation.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
a combined type medium-voltage contactor test wiring tool comprises a test operation box and contactor handcart aviation plug-in female plugs of different models, wherein the test operation box and the contactor handcart aviation plug-in female plugs are connected with each other. The test operation box is a cuboid box body and comprises a control power supply, a direct-current control power supply input/output and control loop, an operation panel and a wiring panel; the contactor handcart is connected with the test operation box through a contactor handcart aviation plug. The control power supply, the direct-current control power supply input/output and control loop, the operation panel, the wiring panel and the contact handcart aviation plug are connected in sequence.
The input/output and control loop of the direct current control power supply comprises two groups of black and yellow aviation plugs and a double P air switch. The positive pole of the control power supply and the negative pole of the control power supply are respectively connected with the upper part of the double-P air switch through a yellow air plug and a black air plug. The double-P air-open lower contact controls the negative electrode of the power supply to be connected to the operating box to output black banana sockets outwards, the positive circuit is connected to the operating box from the air-open lower contact to output yellow banana sockets outwards, and the other circuit is connected to the connection panel in parallel.
A middle-placed plate for mounting hinges is arranged in a box body of the test operation box and serves as an operation panel, and a plurality of 6mm round holes are drilled in the operation panel and are used for mounting operation elements.
The operating elements on the operating panel comprise a bipolar control power supply idle switch, an A1 type electrical holding handcart closing self-holding button, a B1 type electrical holding handcart closing self-holding button, an A2 type mechanical holding handcart closing button, an A2 type mechanical holding handcart opening button, a B2 type mechanical holding handcart closing button and a B2 type mechanical holding handcart opening button. The positive pole of the control power supply connected in parallel by the input/output of the direct current control power supply and the control loop is connected to one side of the switch of all the operation elements.
The test chamber was a rectangular parallelepiped box made of PC material and measuring 300 x 200 x 170. One side of the test operation box is drilled with a plurality of 6mm round holes for mounting banana sockets to be used as a wiring panel.
Further, 4mm banana sockets with different colors are mounted on the wiring panel and are respectively used as a positive and negative incoming and outgoing socket, an A1 type electrical holding handcart closing socket, a B1 type electrical holding handcart closing socket, an A2 type mechanical holding handcart closing socket, an A2 type mechanical holding handcart opening socket, a B1 type electrical holding handcart closing socket and a B2 type mechanical holding handcart opening socket.
The A1 type electrical holding handcart closing socket, the B1 type electrical holding handcart closing socket, the A2 type mechanical holding handcart closing socket and the B2 type mechanical holding handcart closing socket are red; the A2 type mechanical holding handcart opening socket and the B2 type mechanical holding handcart opening socket are green.
The contactor handcart comprises an A1 type electric holding handcart, an A2 type mechanical self-holding handcart, a B1 type electric holding handcart and a B2 type mechanical holding handcart.
Each kind of contactor handcart all includes three kinds of return circuits: 1) a closing loop, 2) a separating loop, 3) a starting power supply loop; each circuit is provided with a positive pin and a negative pin.
The combined type medium-voltage contactor test wiring tool is also provided with a wire with banana plugs at two ends.
Contactor handcart aviation female plug is 24 holes aviation female plugs of a plurality of and different kinds of contactor handcart one-to-one, and the 4mm banana socket of different colours of wire welding installation is all used to the one end of contact pin for connect test connecting wire.
The contact handcart aviation plug-in female plug comprises an aviation plug-in closing pin of an A1 type electric holding handcart, an aviation plug-in closing pin of a B1 type electric holding handcart, an aviation plug-in closing pin of an A2 type mechanical holding handcart, an aviation plug-in separating pin of an A2 type mechanical holding handcart, an aviation plug-in closing pin of a B2 type mechanical holding handcart and an aviation plug-in separating pin of a B2 type mechanical holding handcart.
The 4 types of aviation plug female plugs are connected with the negative pin in parallel, and the positive pin is fixed in a corresponding number hole of the aviation plug female plug according to different functional loops.
The A1 type electrical holding handcart closing self-holding button is connected with an aviation plugging closing pin of an A1 type electrical holding handcart by a connecting wire through an A1 type electrical holding handcart closing socket; the B1 type electric holding handcart closing self-holding button is connected with an aviation plugging closing pin of a B1 type electric holding handcart by a B1 type electric holding handcart closing socket through a connecting wire; the A2 type mechanical holding handcart closing button is connected with an aviation insertion closing pin of an A2 type mechanical holding handcart by a connecting wire through an A2 type mechanical holding handcart closing socket; the A2 type mechanical holding handcart opening button is connected with an aviation plug opening contact pin of an A2 type mechanical holding handcart through an A2 type mechanical holding handcart opening socket by using a connecting wire; a B2 type mechanical holding handcart closing button is connected with an aviation insertion closing pin of a B2 type mechanical holding handcart by a B2 type mechanical holding handcart closing socket through a connecting lead; the switch-off button of the B2 mechanical holding handcart is connected with the switch-off pin of the aviation plug of the B2 mechanical holding handcart by a switch-off socket of the B2 mechanical holding handcart by a connecting wire.
The electric holding contactor handcart needs the self-locking button to enable the closing loop to continuously supply power to keep the closing state of the contactor, the self-locking button needs to be unlocked during opening, and the closing loop is disconnected when power is lost, namely opening is carried out. And the mechanical holding contactor handcart only needs to use a non-self-locking button to provide a switching-on signal, the mechanical structure of the contactor handcart body is used for holding a switching-on state, and at the moment, another non-self-locking button is used for providing a switching-off signal, so that the contactor handcart is tripped and switched off. And different numbers of buttons are arranged according to the number of the contactors to be tested simultaneously on site.
The beneficial effects obtained by the utility model are as follows:
insert banana female plug and experimental control box female socket-outlet through the contactor handcart aviation of different colours and distinguish each return circuit test wiring, use the test wiring of different length and colour to connect the handcart aviation and insert and the control box, replaced original 24 needles aviation and inserted the extension line, promoted contactor test wiring efficiency, can carry out the divide-shut brake operation and experimental breaking away from the cubical switchboard completely to many contactor handcarts simultaneously and go on.
Drawings
Fig. 1 is a schematic structural view of a test wiring tool for a combined medium-voltage contactor.
In the figure: 1 is a direct current control power input/output and control loop; 2 is an operation panel; 3 is a wiring panel; 4, a contact handcart passes through a contact handcart aviation plug wire area; 5 is A1 type electric keeping handcart closing socket; 6 is a B1 type electric holding handcart closing socket; 7 is an A2 type mechanical holding handcart closing socket; 8 is A2 type mechanical holding handcart opening socket; 9 is a B1 type electric holding handcart closing socket; type B2 mechanical holding handcart opening socket is 10.
Detailed Description
The utility model is described in detail below with reference to the figures and specific embodiments.
As shown in fig. 1, the utility model provides a combined type medium-voltage contactor test wiring tool, which comprises a test operation box and different types of contactor handcart aviation plug-in female plugs 4 which are connected with each other. The test operation box is a cuboid box body and comprises a control power supply, a direct-current control power supply input/output and control loop 1, an operation panel 2 and a wiring panel 3; the contactor handcart is connected with the test operation box through a contactor handcart aviation plug 4. The control power supply, the direct-current control power supply input/output and control loop 1, the operation panel 2, the wiring panel 3 and the contact handcart aviation female plug 4 are connected in sequence.
The input/output and control loop 1 of the direct current control power supply comprises two groups of black and yellow aviation plugs and double P air switches. The positive pole of the control power supply and the negative pole of the control power supply are respectively connected with the upper part of the double-P air switch through a yellow air plug and a black air plug. The double-P air-open lower contact controls the negative electrode of the power supply to be connected to the operating box to output black banana sockets outwards, the positive circuit is connected to the operating box from the air-open lower contact to output yellow banana sockets outwards, and the other circuit is connected to the wiring panel 3 in parallel.
The contactor handcart comprises an A1 type electric holding handcart, an A2 type mechanical self-holding handcart, a B1 type electric holding handcart and a B2 type mechanical holding handcart.
Each kind of contactor handcart all includes three kinds of return circuits: 1) a closing loop, 2) a separating loop, 3) a starting power supply loop; each circuit is provided with a positive pin and a negative pin.
The combined type medium-voltage contactor test wiring tool is also provided with a wire with banana plugs at two ends.
Contactor handcart aviation female plug 4 is that 24 holes aviation female plugs of a plurality of and different kind contactor handcart one-to-one insert, and the 4mm banana sockets of different colours of wire welding installation are all used to the one end of contact pin for connect test connecting wire.
The contact handcart aviation plug female plug 4 comprises an aviation plug closing pin of an A1 type electric holding handcart, an aviation plug closing pin of a B1 type electric holding handcart, an aviation plug closing pin of an A2 type mechanical holding handcart, an aviation plug separating pin of an A2 type mechanical holding handcart, an aviation plug closing pin of a B2 type mechanical holding handcart and an aviation plug separating pin of a B2 type mechanical holding handcart.
The 4 types of aviation plug female plugs are connected with the negative pin in parallel, and the positive pin is fixed in a corresponding number hole of the aviation plug female plug according to different functional loops.
The test chamber was a rectangular parallelepiped box made of PC material and measuring 300 x 200 x 170. One side of the test operation box is drilled with a plurality of 6mm round holes for mounting banana sockets to be used as a wiring panel 3.
Further, 4mm banana sockets with different colors are mounted on the wiring panel 3 and respectively used as a positive and negative incoming and outgoing socket, an a1 type electrical holding handcart closing socket 5, a B1 type electrical holding handcart closing socket 6, an a2 type mechanical holding handcart closing socket 7, an a2 type mechanical holding handcart opening socket 8, a B1 type electrical holding handcart closing socket 9 and a B2 type mechanical holding handcart opening socket 10.
The A1 type electrical holding handcart closing socket 5, the B1 type electrical holding handcart closing socket 6, the A2 type mechanical holding handcart closing socket 7 and the B2 type mechanical holding handcart closing socket 9 are red; the A2 type mechanical holding handcart opening socket 8 and the B2 type mechanical holding handcart opening socket 10 are both green.
A middle-placed plate for installing hinges is arranged in a box body of the test operation box and serves as an operation panel 2, and a plurality of 6mm round holes are drilled in the operation panel and are used for installing operation elements.
The operating elements on the operating panel 2 comprise a bipolar control power supply air switch, an A1 type electrical holding handcart closing self-holding button, a B1 type electrical holding handcart closing self-holding button, an A2 type mechanical holding handcart closing button, an A2 type mechanical holding handcart opening button, a B2 type mechanical holding handcart closing button and a B2 type mechanical holding handcart opening button. The positive pole of the control power source connected in parallel by the DC control power source input/output and control loop 1 is connected to the switch side of all the operation elements.
The A1 type electric holding handcart closing self-holding button is connected with an aviation insertion closing pin of an A1 type electric holding handcart by a connecting wire through an A1 type electric holding handcart closing socket 5; the B1 type electric keeping handcart closing self-holding button is connected with an aviation insertion closing pin of a B1 type electric keeping handcart through a B1 type electric keeping handcart closing socket 6 by using a connecting lead; the A2 type mechanical holding handcart closing button is connected with an aviation insertion closing pin of an A2 type mechanical holding handcart by a connecting wire through an A2 type mechanical holding handcart closing socket 7; the A2 type mechanical holding handcart opening button is connected with an aviation plug opening contact pin of an A2 type mechanical holding handcart through an A2 type mechanical holding handcart opening socket 8 by using a connecting lead; a B2 type mechanical holding handcart closing button is connected with an aviation insertion closing pin of a B2 type mechanical holding handcart by a B2 type mechanical holding handcart closing socket 9 through a connecting wire; the switch-off button of the B2 mechanical holding handcart is connected with the switch-off pin of the aviation plug of the B2 mechanical holding handcart by a connecting wire through a switch-off socket 10 of the B2 mechanical holding handcart.
The electric holding contactor handcart needs the self-locking button to enable the closing loop to continuously supply power to keep the closing state of the contactor, the self-locking button needs to be unlocked during opening, and the closing loop is disconnected when power is lost, namely opening is carried out. And the mechanical holding contactor handcart only needs to use a non-self-locking button to provide a switching-on signal, the mechanical structure of the contactor handcart body is used for holding a switching-on state, and at the moment, another non-self-locking button is used for providing a switching-off signal, so that the contactor handcart is tripped and switched off. And different numbers of buttons are arranged according to the number of the contactors to be tested simultaneously on site.
The utility model provides a combined type medium-voltage contactor test wiring tool, which comprises the following steps when in use:
s1: according to different types of contactor handcart, the aviation plug-in female plug and the contactor handcart aviation plug are correspondingly butted one by one;
s2: connecting banana head test wires for a 110V direct current source into positive and negative incoming line 4mm banana sockets on a test operation box wiring panel, and connecting the 4mm banana sockets on the test operation box wiring panel with the test wires with banana heads at two ends for aviation plug-in 4mm banana sockets in a one-to-one correspondence manner according to different types of contactor handcarts;
s3: the control power supply on the operation panel 3 of the closing test operation box is opened in an idle mode, the self-holding closing button is pressed by the electrical holding handcart to realize closing, the button is pressed again to cut off the power to realize opening, the closing button is pressed by the mechanical holding handcart to output a closing signal to realize closing, and the opening button is pressed to output an opening signal to realize opening.
The beneficial effects obtained by the utility model are as follows:
insert banana female plug and experimental control box female socket-outlet through the contactor handcart aviation of different colours and distinguish each return circuit test wiring, use the test wiring of different length and colour to connect the handcart aviation and insert and the control box, replaced original 24 needles aviation and inserted the extension line, promoted contactor test wiring efficiency, can carry out the divide-shut brake operation and experimental breaking away from the cubical switchboard completely to many contactor handcarts simultaneously and go on.
Claims (10)
1. The utility model provides a modular medium voltage contactor test wiring instrument which characterized in that: the test device comprises a test operation box and different types of contactor handcart aviation plug-in female plugs (4) which are mutually connected; the test operation box is a cuboid box body and comprises a control power supply, a direct-current control power supply input/output and control loop (1), an operation panel (2) and a wiring panel (3); the contactor handcart is connected with the test operation box through a contactor handcart aviation plug (4); the control power supply, the direct-current control power supply input/output and control loop (1), the operation panel (2), the wiring panel (3) and the contactor handcart aviation plug female plug (4) are connected in sequence.
2. The modular medium voltage contactor test wiring tool of claim 1, characterized in that: the direct current control power input/output and control loop (1) comprises two groups of black and yellow aviation plugs and a double P air switch; the positive pole of the control power supply and the negative pole of the control power supply are respectively connected with the upper part of the double-P air switch through a yellow air plug and a black air plug; the double-P air switch lower contact controls the negative electrode of the power supply to be connected to the operation box to output black banana sockets outwards, the positive circuit is connected to the operation box from the air switch lower contact to output yellow banana sockets outwards, and the other circuit is connected to the connection panel (3) in parallel.
3. The modular medium voltage contactor test wiring tool as claimed in claim 2, wherein: a middle-placed plate for mounting hinges is arranged in a box body of the test operation box and serves as an operation panel (2), and a plurality of 6mm round holes are drilled in the operation panel (2) for mounting operation elements.
4. The modular medium voltage contactor test wiring tool of claim 3, characterized in that: the operating elements of the operating panel (2) comprise a bipolar control power supply air switch, an A1 type electrical holding handcart switch-on self-holding button, a B1 type electrical holding handcart switch-on self-holding button, an A2 type mechanical holding handcart switch-on button, an A2 type mechanical holding handcart switch-off button, a B2 type mechanical holding handcart switch-on button and a B2 type mechanical holding handcart switch-off button; the positive pole of the control power supply which is connected in parallel by the direct current control power supply input/output and control loop (1) is connected to the switch side of all the operation elements.
5. The modular medium voltage contactor test wiring tool of claim 4, characterized in that: the test operation box is a cuboid box body made of PC materials, and the size is 300X 200X 170; one surface of the test operation box is drilled with a plurality of 6mm round holes for mounting banana sockets to be used as a wiring panel (3); 4mm banana sockets with different colors are mounted on the wiring panel (3) and are respectively used as a positive and negative electrode incoming and outgoing socket, an A1 type electrical holding handcart closing socket (5), a B1 type electrical holding handcart closing socket (6), an A2 type mechanical holding handcart closing socket (7), an A2 type mechanical holding handcart opening socket (8), a B1 type electrical holding handcart closing socket (9) and a B2 type mechanical holding handcart opening socket (10).
6. The modular medium voltage contactor test wiring tool of claim 5, characterized in that: an A1 type electrical holding handcart closing socket (5), a B1 type electrical holding handcart closing socket (6), an A2 type mechanical holding handcart closing socket (7) and a B2 type mechanical holding handcart closing socket (9) are red; the A2 type mechanical holding handcart opening socket (8) and the B2 type mechanical holding handcart opening socket (10) are green.
7. The modular medium voltage contactor test wiring tool of claim 6, characterized in that: the combined medium-voltage contactor test wiring tool is also provided with a lead with banana plugs at two ends; the contactor handcart comprises an A1 type electric holding handcart, an A2 type mechanical self-holding handcart, a B1 type electric holding handcart and a B2 type mechanical holding handcart; each kind of contactor handcart all includes three kinds of return circuits: a switching-on loop, a switching-off loop and a starting power supply loop; each circuit is provided with a positive pin and a negative pin.
8. The modular medium voltage contactor test wiring tool of claim 7, wherein: the contactor handcart aviation female plug (4) is a 24-hole aviation female plug which is in one-to-one correspondence with a plurality of contactor handcarts of different types, and one end of each contact pin is provided with a 4mm banana socket with different colors through welding by a lead.
9. The modular medium voltage contactor test wiring tool of claim 8, wherein: the contact handcart aviation plug female plug (4) comprises an aviation plug closing pin of an A1 type electrical holding handcart, an aviation plug closing pin of a B1 type electrical holding handcart, an aviation plug closing pin of an A2 type mechanical holding handcart, an aviation plug separating pin of an A2 type mechanical holding handcart, an aviation plug closing pin of a B2 type mechanical holding handcart and an aviation plug separating pin of a B2 type mechanical holding handcart; the 4 types of aviation plug female plugs are connected with the negative pin in parallel, and the positive pin is fixed in a corresponding number hole of the aviation plug female plug according to different functional loops.
10. The modular medium voltage contactor test wiring tool of claim 9, wherein: the A1 type electrical holding handcart closing self-holding button is connected with an aviation insertion closing pin of an A1 type electrical holding handcart by a connecting wire through an A1 type electrical holding handcart closing socket (5); the B1 type electric keeping handcart closing self-holding button is connected with an aviation insertion closing pin of a B1 type electric keeping handcart by a B1 type electric keeping handcart closing socket (6) through a connecting lead; the A2 type mechanical holding handcart closing button is connected with an aviation insertion closing pin of an A2 type mechanical holding handcart by a connecting wire through an A2 type mechanical holding handcart closing socket (7); an A2 type mechanical holding handcart opening button is connected with an aviation plug opening contact pin of an A2 type mechanical holding handcart through an A2 type mechanical holding handcart opening socket (8) by using a connecting lead; a B2 type mechanical holding handcart closing button is connected with an aviation insertion closing pin of a B2 type mechanical holding handcart by a B2 type mechanical holding handcart closing socket (9) through a connecting wire; the switch-off button of the B2 type mechanical holding handcart is connected with the switch-off pin of the aviation plug of the B2 type mechanical holding handcart by a switch-off socket (10) of the B2 type mechanical holding handcart by using a connecting wire.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121142398.4U CN215867004U (en) | 2021-05-26 | 2021-05-26 | Modular experimental wiring instrument of medium voltage contactor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121142398.4U CN215867004U (en) | 2021-05-26 | 2021-05-26 | Modular experimental wiring instrument of medium voltage contactor |
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| CN215867004U true CN215867004U (en) | 2022-02-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115389920A (en) * | 2022-08-18 | 2022-11-25 | 中核核电运行管理有限公司 | Self-holding verification device for medium-voltage contactor |
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2021
- 2021-05-26 CN CN202121142398.4U patent/CN215867004U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115389920A (en) * | 2022-08-18 | 2022-11-25 | 中核核电运行管理有限公司 | Self-holding verification device for medium-voltage contactor |
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