CN217385748U - 10kV switch mechanical characteristic test auxiliary device - Google Patents
10kV switch mechanical characteristic test auxiliary device Download PDFInfo
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- CN217385748U CN217385748U CN202123290198.6U CN202123290198U CN217385748U CN 217385748 U CN217385748 U CN 217385748U CN 202123290198 U CN202123290198 U CN 202123290198U CN 217385748 U CN217385748 U CN 217385748U
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Abstract
The utility model discloses a 10kV switch mechanical property test auxiliary device, the power distribution box comprises a box body, the circuit board, control panel, be equipped with control module on the circuit board, power module, control module is equipped with a plurality of electromagnetic relay, the last divide-shut brake input signal jack of being connected with the circuit board that is equipped with of control panel, output aviation plug, a plurality of control mode selection button, divide-shut brake input signal jack is used for the divide-shut brake output signal jack connection with mechanical property tester, output aviation plug is used for being connected with circuit breaker aviation plug, control module is connected with control mode selection button, control electromagnetic relay through control mode selection button, make output aviation plug correspond the stitch output control signal of wiring mode, power module is used for output direct current voltage drive energy storage motor. The utility model discloses connect between mechanical properties testing instrument and the circuit breaker switch that is tried, simplify the loaded down with trivial details wiring flow of tradition to can the multiple model circuit breaker of adaptation.
Description
[ technical field ] A method for producing a semiconductor device
The utility model belongs to the technical field of electric power engineering, concretely relates to cubical switchboard mechanical properties test technique.
[ background ] A method for producing a semiconductor device
The mechanical characteristic test is an important test for preventing switch operation accidents in the switch cabinet, and the parameters of the test are important indexes for checking whether the switch state is intact. The mechanical characteristic test for one time has 5 links including preparation work, tested equipment wiring, test instrument wiring, test and test wiring removal.
The current mechanical property test has the following difficulties:
1. the opening and closing coils are difficult to measure. Before the mechanical characteristic test of the switch, the resistance of a switching-on/off coil of the switch needs to be measured, and a front panel of the switch needs to be disassembled during measurement. Because the wiring in the switch is complicated, and the secondary wire led out by the opening and closing coil does not have a point directly available for measurement, the secondary wire needs to be moved to the terminal row in the switch to measure along the system label or the opposite side label, the space is quite narrow, the searching process is time-consuming and labor-consuming, and the point is easy to find by mistake.
2. And the switching-on latching electromagnet is difficult to find. Most 10kV handcart switches are provided with switch-on and switch-off locking electromagnets, and during testing, the switch-on and locking electromagnets lose power, so that a tester needs to disassemble a switch front panel and manually close contacts of switch-on and lock. The switch panel takes a long time to disassemble and assemble, and the switch is easy to damage.
3. And the aviation plug is difficult to wire. During testing, switching-on and switching-off loop contact pins used for testing are found out from 58 contact pins on a switch secondary aviation plug, a test wire connected with a testing instrument is accurately and firmly clamped on the contact pins by using an alligator clip, and the contact pins are wrapped by an insulating tape so as to prevent the contact pins from being mistakenly touched to cause short circuit. Because the contact pins of the aviation plug are densely distributed, in order to ensure the accuracy, reliability and stability of test wiring, a specially-assigned person is required to check after the test wiring is completed each time.
4. Manual energy storage is difficult. Before each switching-on test, the switch needs to be stored with energy. In general, a tester needs to use an energy storage rocking handle to store energy manually for a switch. During the energy storage process, the tester needs to spend a lot of time and effort to shake the handle. But also can cause the energy storage spring to be released and popped up, thereby forming serious personal injury accidents. And the handcart is easy to topple over, and needs a specially-assigned person for monitoring.
[ Utility model ] content
In order to overcome the deficiencies in the prior art, the utility model aims to solve the technical problem that a 10kV switch mechanical characteristic test auxiliary device is provided, makes things convenient for the switch mechanical characteristic to be experimental.
In order to solve the technical problem, the utility model adopts the following technical scheme: the 10kV switch mechanical characteristic test auxiliary device comprises a rectangular box body, a circuit board arranged in the box body and a control panel arranged on the surface of the box body, the circuit board is provided with a control module and a power module, the control module is provided with a plurality of electromagnetic relays, the control panel is provided with a switching-on/off input signal jack, an output aviation plug and a plurality of control mode selection buttons which are connected with the circuit board, the opening and closing input signal jack is used for being connected with an opening and closing output signal jack of a mechanical characteristic tester, the output aviation plug is used for being connected with the breaker aviation plug, the output aviation plug is connected with the control module, the control module is connected with the control mode selection button, the electromagnetic relay is controlled through the control mode selection button, so that a pin output signal of the aviation plug corresponding to the wiring mode is output, and the power supply module is used for outputting direct-current voltage to drive the energy storage motor.
Preferably, the control panel is further provided with an air switch connected with the power module, a motor energy storage button and a direct-current power supply indicating lamp are arranged corresponding to the air switch, and the direct-current voltage output of the power module passes through the air switch.
Preferably, the control module is provided with a closing latching electromagnet automatic unlocking loop for unlocking the closing latching electromagnet.
Preferably, the box body is further provided with a box cover for covering the control panel.
Preferably, the box body is made of an aluminum alloy material.
Preferably, the power module is powered by alternating current rectification of mains supply, an input socket for accessing the mains supply is arranged on the control panel, and the input socket is connected with the power module.
The utility model adopts the above technical scheme, following beneficial effect has:
1. simplifying the wiring of the mechanical property test: the utility model discloses connect between mechanical properties test instrument and the switch under test, simplify the loaded down with trivial details wiring flow of tradition.
2. Adaptation multiple model circuit breaker: the utility model discloses be equipped with control module on the circuit board to control through selecting different control mode selection buttons, make the stitch output control signal that the aviation plug of output corresponds the wiring mode, realize the stitch adaptation of the circuit breaker secondary aviation plug of multiple common model and need not change experimental wiring.
3. The circuit breaker automatically stores energy: the utility model discloses be equipped with power module on the circuit board, through output aviation plug output power, provide constant voltage power supply for switch energy storage motor automatically, realize the automatic energy storage of circuit breaker, the time of manual energy storage when shortening the tradition experiment.
4. Unlocking a closing loop locking electromagnet: the utility model discloses be equipped with the automatic unblock return circuit of combined floodgate shutting electro-magnet that is used for unblock combined floodgate shutting electro-magnet on the circuit board, make switch combined floodgate shutting electro-magnet the unblock that has got the electricity through output aviation plug output unblock signal, avoided loaded down with trivial details manual unblock flow among the traditional test.
These features and advantages of the present invention will be disclosed in more detail in the following detailed description and the accompanying drawings.
[ description of the drawings ]
The utility model is further described with the following drawings:
FIG. 1 is a schematic diagram of a mechanical characteristic test wiring of a switch with an auxiliary device;
FIG. 2 is a plan view of a control panel of the 10kV switch mechanical characteristic test auxiliary device;
FIG. 3 is a schematic diagram of arrangement of aviation plug pins of a 10kV vacuum circuit breaker;
FIG. 4 is a first schematic circuit diagram of the control module;
fig. 5 is a second schematic circuit diagram of the control module.
[ detailed description ] A
The technical solutions of the embodiments of the present invention are explained and explained below with reference to the drawings of the embodiments of the present invention, but the embodiments described below are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the embodiment, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.
Combine the on-the-spot condition of present 10kV circuit breaker handcart of transformer substation, definitely position 10kV circuit breaker handcart mechanical characteristic test auxiliary device's concrete function: simplify the experimental wiring of 10kV circuit breaker handcart mechanical characteristic, the multiple model circuit breaker of adaptation, the automatic energy storage of circuit breaker, the automatic unblock of combined floodgate return circuit shutting electro-magnet, practice thrift test time, improve accuracy, reliability and the stability of experimental wiring.
The present invention will be described in further detail with reference to the following detailed description and accompanying drawings:
the utility model discloses an experimental auxiliary device of 10kV switch mechanical properties connects between the circuit breaker of mechanical properties tester and 10kV circuit breaker handcart of transformer substation, for conveniently carrying, the utility model discloses an experimental auxiliary device of 10kV switch mechanical properties adopts box formula design, and the box is inside can divide into device power supply district, the empty district of opening of device, device button district, signal input district, aviation plug output district, light instruction district according to the difference of function, can realize following function:
A. the well-arranged formation type design has the advantages of more convenient wiring and improved use safety.
B. The design of the signal lamp plays a role in monitoring and warning.
C. The air switch can cut off the power supply in time, thereby protecting the personal safety and the equipment safety.
Referring to fig. 1 and 2, the 10kV switch mechanical characteristic test auxiliary device comprises a rectangular box body, a circuit board arranged in the box body, and a control panel arranged on the surface of the box body, wherein the circuit board is provided with a control module and a power supply module, the control module is provided with a plurality of electromagnetic relays, the control panel is provided with a switching-on/off input signal jack, an output aviation plug and a plurality of control mode selection buttons, the switching-on/off input signal jack is connected with a switching-on/off output signal jack of a mechanical characteristic tester, the output aviation plug is connected with a circuit breaker aviation plug, the output aviation plug is connected with the control module, the control module is connected with the control mode selection buttons, the electromagnetic relays are controlled by the control mode selection buttons, and the output aviation plug outputs a stitch output signal corresponding to a wiring mode, the power module is used for outputting direct current voltage to drive the energy storage motor.
The output aviation plug is connected with the breaker aviation plug, integrates various output functions, and comprises the functions of outputting various control signals and outputting a power supply to automatically provide a stabilized voltage power supply for the switch energy storage motor. The connector can be adapted to most aviation plugs on the market, is convenient and reliable to connect, avoids the problems of virtual connection, short circuit and the like possibly occurring in the traditional wiring, and increases the safety of the test.
The 10kV switch mechanical characteristic auxiliary device is internally provided with a wiring mode of various 10kV circuit breaker handcart aviation plug pins which are common on the market, and can be switched by one key, so that the problems that pins are difficult to find and lines are difficult to find in a traditional mechanical characteristic test are solved, and the test time is greatly saved.
The electric energy storage of the switch is realized. The function saves a large amount of time wasted by manual energy storage in a test, saves manpower, and avoids personal accidental injury and equipment damage caused by insufficient energy storage, tripping of an energy storage spring, overturning of a switch handcart and the like in the manual energy storage process.
The circuit breaker model of present switch station mainly has VS1 type, VB5-12 type, ZN65 type, and all 10kV circuit breaker aviation plugs's size, shape and stitch distribute all unanimously, consequently can use a general aviation plug of a section to carry out the adaptation to different model circuit breakers, realizes the connection of circuit breaker switching characteristic test auxiliary device to circuit breaker aviation plug through the stitch lead-out wire of aviation plug expansion end.
The arrangement diagram of aviation plug pins of the 10kV vacuum circuit breaker is shown in figure 3, and the functions of the pins are shown in table 1.
TABLE 1 stitch function
| Model number | Closing switch | Separating brake | Energy storage |
| VS1 | 04(+)-14(-) | 30(+)-31(-) | 25(+)-35(-) |
| VB5-12 | 04(+)-05(-) | 06(+)-07(-) | 02(+)-03(-) |
| ZN65 | 07(+)-09(-) | 09(+)-08(-) | 01(+)-02(-) |
An electromagnetic relay is an electronic control device which utilizes an electromagnet to control the on-off of a working circuit. A certain voltage is applied to two ends of a relay coil, a certain current flows in the coil, so that an electromagnetic effect is generated, the armature iron overcomes the pulling force of a return spring under the action of electromagnetic force attraction and is attracted to the iron core, and the movable contact of the armature iron is driven to be attracted with a fixed contact (normally open contact). When the coil is powered off, the electromagnetic attraction force disappears, and the armature returns to the original position under the counterforce of the spring, so that the movable contact and the original static contact (normally closed contact) are released. Thus, the circuit is attracted and released, thereby achieving the purposes of conduction and cut-off in the circuit. The electromagnetic relay can use smaller current and lower voltage to control larger current and higher voltage, and plays a role in controlling the circuit and the output circuit and safely isolating the circuit.
The control module circuit is shown in fig. 4 and 5, and the meaning of the symbols in the figure is shown in table 2.
TABLE 2
| Symbol: | the meaning is as follows: | |
| KM1～3 | electromagnetic relay | |
| SB1～4 | Mode button | |
| I | Aviation plug pin |
As shown in fig. 4 and 5, the electromagnetic relay is controlled by controlling the mode selection button, so that the pin outputting the aviation plug corresponding to the wiring mode outputs a control signal. For example, if a first wiring mode (VS1, VD4, VEP type breaker handcart) is selected, the mode selection button 1 is pressed, the coil of the electromagnetic relay KM1 is electrified, the KM1 normally open contact is closed, and a pin of the aviation plug of the auxiliary device corresponding to the first wiring mode outputs a control signal; if other wiring modes are selected, the button corresponding to the mode is pressed to realize one-key switching.
Meanwhile, the auxiliary device needs to ensure that a plurality of KM coils cannot be powered simultaneously during working, otherwise aviation plug pin output is disordered, and the test cannot be carried out or even serious short-circuit faults occur. Therefore, the control circuit adopts the safety guarantee measures of double interlocking of button interlocking (mechanical interlocking) and relay interlocking (electrical interlocking), and when a certain mode is selected, the control circuit of other modes is ensured to be cut off.
Furthermore, an air switch connected with the power module is further arranged on the control panel, a motor energy storage button and a direct-current power supply indicating lamp are arranged corresponding to the air switch, and the direct-current voltage output of the power module passes through the air switch. The switch power supply is adopted for power supply, the functions of overload, overvoltage, short-circuit protection and the like are achieved, and safe and reliable one-key energy storage of the energy storage motor of the circuit breaker is achieved.
For the circuit breaker with the closing locking loop, the circuit board is provided with an automatic closing locking electromagnet unlocking loop for unlocking the closing locking electromagnet. The time waste caused by narrow space in the front cabinet door of the switch, narrow space in the switch bin, inconvenient light operation and the like is avoided, and the safety of the testing personnel is improved.
In order to protect the control panel when not in use, the box body is also provided with a box cover for covering the control panel. The box body is made of aluminum alloy materials.
In this embodiment, the power module is powered by ac rectification of mains supply, and the control panel is provided with an input socket for accessing mains supply, and the input socket is connected with the power module.
As shown in fig. 2, the control panel is further provided with a connecting wire and an aviation socket placing area, the area is set to be in a groove form, the connecting wire and the aviation socket are placed in the groove form, and when the 10kV circuit breaker handcart mechanical characteristic test wiring is conducted, the connecting wire and the aviation socket are taken out to conduct wiring.
The utility model discloses can shorten the time of links such as inspection shutting electro-magnet, aviation plug wiring and the manual energy storage of switch in the 10kV switch mechanical properties test effectively. As shown in table 3, the maintainer uses the auxiliary device to match with the testing instrument, and reduces the mechanical characteristic testing time of the 10kV switch from original 35.3 minutes to 12.4 minutes, so that the mechanical characteristic test of the transformer substation 10kV switch cabinet at multiple intervals can be efficiently completed, thereby saving the interval maintenance time of the transformer substation, shortening the power failure time of a user, and improving the efficiency of maintenance work of the transformer substation 10kV switch cabinet.
Table 310 kV switch mechanical property test average time
And the power supply module is used for outputting direct current voltage to drive the energy storage motor and checking the energy storage effect of the energy storage motor. The experimental data obtained are shown in table 4.
TABLE 4 statistics of motor energy storage effect under power module drive
Through actual test, the energy storage effect of energy storage motor is stable, and this power module satisfies the user demand.
The above description is only for the embodiments of the present invention, but the scope of the present invention is not limited thereto, and those skilled in the art should understand that the present invention includes but is not limited to the description in the above embodiments and the accompanying drawings. Any modification that does not depart from the functional and structural principles of the invention is intended to be included within the scope of the claims.
Claims (6)
- The 1.10kV switch mechanical characteristic test auxiliary device is characterized by comprising a rectangular box body, a circuit board arranged in the box body and a control panel arranged on the surface of the box body, wherein the circuit board is provided with a control module and a power supply module, the control module is provided with a plurality of electromagnetic relays, the control panel is provided with a switching-on and switching-off input signal jack, an output aviation plug and a plurality of control mode selection buttons, the switching-on and switching-off input signal jack is connected with a switching-on and switching-off output signal jack of a mechanical characteristic tester, the output aviation plug is connected with a circuit breaker aviation plug, the output aviation plug is connected with the control module, the control module is connected with the control mode selection buttons, the electromagnetic relays are controlled through the control mode selection buttons, and pin output signals of the output aviation plug corresponding to a wiring mode are enabled to be output, the power module is used for outputting direct current voltage to drive the energy storage motor.
- 2. The 10kV switch mechanical characteristic test auxiliary device as claimed in claim 1, wherein an air switch connected with the power module is further arranged on the control panel, a motor energy storage button and a direct current power indicator lamp are arranged corresponding to the air switch, and the direct current voltage output of the power module passes through the air switch.
- 3. The 10kV switch mechanical characteristic test auxiliary device according to claim 1, wherein the control module is provided with a closing latching electromagnet automatic unlocking loop for unlocking the closing latching electromagnet.
- 4. The 10kV switch mechanical property test auxiliary device according to claim 1, wherein a box cover for covering the control panel is further arranged on the box body.
- 5. The 10kV switch mechanical property test auxiliary device according to claim 1, wherein the box body is made of an aluminum alloy material.
- 6. The 10kV switch mechanical characteristic test auxiliary device according to claim 1, wherein the power module is supplied with power by alternating current rectification of mains supply, an input socket for connecting the mains supply is arranged on the control panel, and the input socket is connected with the power module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123290198.6U CN217385748U (en) | 2021-12-23 | 2021-12-23 | 10kV switch mechanical characteristic test auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123290198.6U CN217385748U (en) | 2021-12-23 | 2021-12-23 | 10kV switch mechanical characteristic test auxiliary device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217385748U true CN217385748U (en) | 2022-09-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123290198.6U Active CN217385748U (en) | 2021-12-23 | 2021-12-23 | 10kV switch mechanical characteristic test auxiliary device |
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| Country | Link |
|---|---|
| CN (1) | CN217385748U (en) |
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2021
- 2021-12-23 CN CN202123290198.6U patent/CN217385748U/en active Active
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