CN113064099A - Self-reset type electric leakage warning device for prefabricated substation - Google Patents
Self-reset type electric leakage warning device for prefabricated substation Download PDFInfo
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- CN113064099A CN113064099A CN202110290007.1A CN202110290007A CN113064099A CN 113064099 A CN113064099 A CN 113064099A CN 202110290007 A CN202110290007 A CN 202110290007A CN 113064099 A CN113064099 A CN 113064099A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/52—Testing for short-circuits, leakage current or ground faults
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K5/00—Measuring temperature based on the expansion or contraction of a material
- G01K5/48—Measuring temperature based on the expansion or contraction of a material the material being a solid
- G01K5/483—Measuring temperature based on the expansion or contraction of a material the material being a solid using materials with a configuration memory, e.g. Ni-Ti alloys
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Abstract
The invention discloses a self-resetting type electric leakage warning device for a prefabricated substation, which belongs to the field of the prefabricated substation, and comprises a mounting bracket arranged in a prefabricated substation box, wherein the left end of the mounting bracket is fixedly connected with a left phase push barrel, a circuit in the prefabricated substation can be detected through an electromagnetic induction assembly, when an electric leakage condition occurs, a hemispherical contact and a contact induction groove are connected and electrified, an alarm works, an electric power maintainer is reminded of checking the prefabricated substation, the continuity of an electric leakage phenomenon is reduced, the safety of the prefabricated substation is improved while the electric energy is saved, the service life of the prefabricated substation is prolonged, and after the electric leakage phenomenon disappears, a right phase contact assembly can be effectively reset under the action of a right phase tension spring to power off the alarm, the circuit can be continuously and effectively detected, and the investment of maintenance cost is reduced.
Description
Technical Field
The invention relates to the field of a preassembled transformer substation, in particular to a self-resetting electric leakage warning device for the preassembled transformer substation.
Background
The transformer substation is a place for converting voltage and current, receiving electric energy and distributing electric energy in an electric power system. The substations in the power plant are step-up substations, which are used to boost up the electrical energy generated by the generator and feed it into the high-voltage network. A prefabricated transformer substation is also called a box-type transformer substation, is a high-voltage switch device, a distribution transformer and a low-voltage distribution device, is factory prefabricated indoor and outdoor compact distribution equipment which is integrated according to a certain wiring scheme, namely, the functions of transformer voltage reduction, low-voltage distribution and the like are organically combined together and installed on a steel structure box which is damp-proof, rust-proof, dust-proof, rat-proof, fire-proof, anti-theft, heat-insulating, totally-closed and movable, is particularly suitable for urban network construction and transformation, and is a brand-new transformer substation rising after a civil transformer substation.
The prefabricated substation is suitable for residential districts, urban public transformer stations, busy cities, construction power supplies and the like, and a user can select the prefabricated substation according to different use conditions and load grades. Since the advent of the world, pre-installed substations have grown very rapidly, accounting for 70% of distribution transformers in developed countries in europe and 90% in the united states. The rapid development of modern construction of cities in China and the continuous updating and transformation of urban power distribution networks are certainly widely applied.
With the wide application of the prefabricated substation box in cities, the safety and stability of the prefabricated substation box are always important concerns, a fuse is arranged in the conventional prefabricated substation box for improving the safety of power transmission to protect the circuit safety, but a power interface or a transmission line is loosened or aged in the long-time working process of the prefabricated substation box, so that the local electric leakage phenomenon is easily caused, the sensitivity of the fuse to the slight electric leakage phenomenon is low, the fuse cannot perform protection reaction in the initial stage of electric leakage, the waste of electric energy is caused for a long time, and the danger of the prefabricated substation box is also improved.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide a self-resetting electric leakage warning device for a prefabricated substation, which can detect a circuit in the prefabricated substation through an electromagnetic induction assembly, when an electric leakage condition occurs, the electromagnetic induction assembly is electrified to generate magnetic attraction force on a right-phase contact assembly, so that the right-phase contact assembly moves towards the electromagnetic induction assembly, a hemispherical contact and a contact induction groove are connected and electrified, an alarm works to remind a power maintainer to check the prefabricated substation, the continuity of the electric leakage phenomenon is reduced, the safety of the prefabricated substation is improved while the electric energy is saved, the service life of the prefabricated substation is prolonged, and after the electric leakage phenomenon disappears, the right-phase contact assembly can effectively reset under the action of a right-phase tension spring to power off the alarm, so that the circuit can be continuously and effectively detected, the investment of maintenance cost is reduced.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A self-reset type electric leakage warning device for a prefabricated substation comprises a mounting support arranged in a prefabricated substation box, wherein the left end of the mounting support is fixedly connected with a left phase push cylinder, the right end of the mounting support is fixedly connected with a right phase push cylinder, a left phase contact assembly is arranged in the left phase push cylinder, a right phase contact assembly matched with the left phase contact assembly is arranged in the right phase push cylinder, the left phase contact assembly and the right phase contact assembly are both electrically connected with an alarm, and an electromagnetic induction assembly matched with the right phase contact assembly is fixedly arranged at the rear end of the right phase push cylinder;
the left phase contact assembly comprises a left phase contact push plate, the left phase push cylinder is internally connected with the left phase contact push plate, the right end of the left phase contact push plate is fixedly connected with a left phase contact supporting rod, and the left side of the left phase contact supporting rod is provided with a contact induction groove;
the right side is the push pedal of touching mutually including the right side, sliding connection has the push pedal of touching mutually on the right side in the push cylinder mutually, the left end fixedly connected with right side of push pedal of touching mutually contacts branch, right side branch right side fixedly connected with of touching mutually responds to the hemisphere contact that the groove matches, and touches and responds to groove and hemisphere contact contactless, right side push pedal right-hand member fixedly connected with right side extension spring of touching mutually, and right side extension spring right-hand member and right side push cylinder inner wall fixed connection mutually. The circuit in the prefabricated substation is detected through the electromagnetic induction assembly, when the electric leakage condition occurs, the electromagnetic induction assembly is electrified to generate magnetic attraction to the right phase contact assembly, the right phase contact assembly is enabled to move towards the electromagnetic induction assembly, the hemispherical contact and the contact induction groove are enabled to be connected and electrified, the alarm is enabled to work, power maintenance personnel are reminded to check the prefabricated substation, the continuity of the electric leakage phenomenon is reduced, the safety of the prefabricated substation is improved while the electric energy is saved, the service life of the prefabricated substation is prolonged, after the electric leakage phenomenon disappears, the right phase contact assembly can effectively reset under the action of the right phase tension spring, the alarm is powered off, the circuit can be continuously and effectively detected, and the investment of maintenance cost is reduced.
Further, the electromagnetic induction subassembly is including the coil protective case, right side looks pusher right-hand member fixedly connected with coil protective case, fixed mounting has solenoid in the coil protective case, solenoid left end fixedly connected with magnetic conduction pole, the magnetic conduction pole left end runs through coil protective case and right side looks pusher in proper order to the fixedly connected with magnetic conduction board, coil protective case right-hand member fixedly connected with electromagnetism wire, and electromagnetism wire and solenoid electric connection. The electromagnetic wire is connected with a circuit in the prefabricated substation, when the leakage phenomenon occurs, the electromagnetic coil is effectively electrified, the right phase contact assembly is made to act, the alarm plays a role, maintenance personnel are effectively reminded at the initial stage of leakage, the maintenance efficiency of the maintenance personnel when the prefabricated substation breaks down is effectively improved, the fault data of the maintenance personnel is eliminated, the power-off time of the prefabricated substation is shortened, and the economic loss caused by power-off is reduced.
Furthermore, a magnetic block is fixedly connected to the right end of the right-phase contact push plate, and the strong magnetic block is matched with the magnetic conduction plate. After the electromagnetic coil is electrified, the magnetic conduction plate generates magnetism, the magnetic conduction plate can drive the right phase contact push plate to move through the adsorption magnetic block, the hemispherical contact is contacted with the contact induction groove, a communication circuit is formed, the alarm gives an alarm, the damage of long-term electricity leakage to an electrical component in the prefabricated substation is effectively prevented, and the fault rate of the prefabricated substation is reduced.
Furthermore, a left phase wire is fixedly connected to the upper end of the left phase contact push plate and electrically connected with the alarm, the upper end of the left phase wire extends to the upper side of the left phase push cylinder, and the left phase wire is electrically connected with the contact induction groove through a connecting wire.
Further, right side looks contact push pedal upper end fixedly connected with right side looks wire, right side looks wire upper end extends to right side looks pushing cylinder upside to with siren electric connection, left side looks wire passes through connecting wire and hemisphere contact electric connection. Through left looks wire and right looks wire respectively with siren electric connection, directly control the power supply line of siren, improve the sensitivity of siren during operation, improve the accuracy of alarm data.
Furthermore, a deformation guide rod is fixedly connected to the right inner wall of the left phase pushing cylinder, the outer end of the deformation guide rod is connected with shape memory metal in a sliding mode, and the left end and the right end of the shape memory metal are respectively connected with the left phase pushing cylinder and the left phase contact push plate in a butting mode. When the temperature of the prefabricated substation is too high and is not reduced or the spontaneous combustion phenomenon occurs, the shape memory metal is contracted and deformed by high temperature to drive the left-phase contact assembly to slide in the left-phase push cylinder, so that the contact induction groove is moved and is in contact with the hemispherical contact, the alarm is powered on and gives an alarm to remind a maintainer to check the prefabricated substation, the damage of the prefabricated substation is effectively avoided, the alarm can also be effectively connected with cooling equipment in the prefabricated substation, and the heat dissipation efficiency is improved.
Furthermore, a closed air bag is fixedly connected between the left-phase contact push plate and the right-phase contact push plate, the left-phase contact supporting rod and the right-phase contact supporting rod are both positioned on the inner side of the closed air bag, and inert gas is filled in the closed air bag. Inert gas in the closed air bag carries out power-off protection on the contact induction groove and the hemisphere contact, effectively enables the contact induction groove and the hemisphere contact to realize complete power-off when not in contact, improves the stability and accuracy of power-on and power-off of the contact induction groove and the hemisphere contact, protects the alarm, and effectively avoids output of error counting tools.
Further, the high temperature fire prevention subassembly that is located right looks pusher downside is installed to the installing support upper end, the high temperature fire prevention subassembly is including stabilizing the sleeve, installing support upper end joint has stabilizing the sleeve, fixedly connected with carbon dioxide gasbag in the stabilizing the sleeve, a plurality of gas diffusion holes have been seted up to stabilizing the sleeve outer end.
Furthermore, the lower end of the left-phase contact push plate is fixedly connected with a linkage block, the linkage block extends to the lower side of the left-phase push cylinder and is fixedly connected with a T-shaped puncture needle, the left end of the stabilizing sleeve is open, and the right end of the T-shaped puncture needle extends into the carbon dioxide air bag. The left-phase contact assembly is connected with the left-phase contact push plate through the linkage block, when the left-phase contact assembly is driven by the shape memory metal to move, the T-shaped puncture needle moves out of the carbon dioxide air bag, so that the carbon dioxide air bag bursts, and carbon dioxide in the carbon dioxide air bag is discharged.
Furthermore, a rectangular sliding groove is formed in the lower end of the left phase pushing cylinder and is in sliding connection with the linkage block. The rectangle spout leads and guides the interlock piece, makes the interlock piece can effectively drive the removal of T shape puncture needle, reduces and removes the offset, reduces the production in tearing, improves the speed of rupture of carbon dioxide gasbag.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) according to the scheme, the electromagnetic induction assembly is used for detecting the circuit in the prefabricated substation, when the electric leakage condition occurs, the electromagnetic induction assembly is electrified to generate magnetic attraction to the right phase contact assembly, the right phase contact assembly is enabled to move towards the direction of the electromagnetic induction assembly, the hemispherical contact and the contact induction groove are enabled to be connected and electrified, the alarm is enabled to work, power maintenance personnel is reminded to check the prefabricated substation, the continuity of the electric leakage phenomenon is reduced, the safety of the prefabricated substation is improved while the electric energy is saved, the service life of the prefabricated substation is prolonged, after the electric leakage phenomenon disappears, the right phase contact assembly can effectively reset under the action of the right phase tension spring, the alarm is powered off, the circuit can be continuously and effectively detected, and the investment of maintenance cost is reduced.
(2) The electromagnetic wire is connected with a circuit in the prefabricated substation, when the leakage phenomenon occurs, the electromagnetic coil is effectively electrified, the right phase contact assembly is made to act, the alarm plays a role, maintenance personnel are effectively reminded at the initial stage of leakage, the maintenance efficiency of the maintenance personnel when the prefabricated substation breaks down is effectively improved, the fault data of the maintenance personnel is eliminated, the power-off time of the prefabricated substation is shortened, and the economic loss caused by power-off is reduced.
(3) After the electromagnetic coil is electrified, the magnetic conduction plate generates magnetism, the magnetic conduction plate can drive the right phase contact push plate to move through the adsorption magnetic block, the hemispherical contact is contacted with the contact induction groove, a communication circuit is formed, the alarm gives an alarm, the damage of long-term electricity leakage to an electrical component in the prefabricated substation is effectively prevented, and the fault rate of the prefabricated substation is reduced.
(4) Through left looks wire and right looks wire respectively with siren electric connection, directly control the power supply line of siren, improve the sensitivity of siren during operation, improve the accuracy of alarm data.
(5) When the temperature of the prefabricated substation is too high and is not reduced or the spontaneous combustion phenomenon occurs, the shape memory metal is contracted and deformed by high temperature to drive the left-phase contact assembly to slide in the left-phase push cylinder, so that the contact induction groove is moved and is in contact with the hemispherical contact, the alarm is powered on and gives an alarm to remind a maintainer to check the prefabricated substation, the damage of the prefabricated substation is effectively avoided, the alarm can also be effectively connected with cooling equipment in the prefabricated substation, and the heat dissipation efficiency is improved.
(6) Inert gas in the closed air bag carries out power-off protection on the contact induction groove and the hemisphere contact, effectively enables the contact induction groove and the hemisphere contact to realize complete power-off when not in contact, improves the stability and accuracy of power-on and power-off of the contact induction groove and the hemisphere contact, protects the alarm, and effectively avoids output of error counting tools.
(7) The left-phase contact assembly is connected with the left-phase contact push plate through the linkage block, when the left-phase contact assembly is driven by the shape memory metal to move, the T-shaped puncture needle moves out of the carbon dioxide air bag, so that the carbon dioxide air bag bursts, and carbon dioxide in the carbon dioxide air bag is discharged.
(8) The rectangle spout leads and guides the interlock piece, makes the interlock piece can effectively drive the removal of T shape puncture needle, reduces and removes the offset, reduces the production in tearing, improves the speed of rupture of carbon dioxide gasbag.
Drawings
FIG. 1 is a schematic view of an axial structure of the present invention;
FIG. 2 is a schematic cross-sectional front view of the present invention;
FIG. 3 is a schematic diagram of the structure at A in FIG. 2 according to the present invention;
FIG. 4 is a schematic diagram of a half-section exploded structure of the present invention;
FIG. 5 is a schematic view of the mounting bracket axial structure of the present invention;
FIG. 6 is a schematic axial view of the left phase contact assembly of the present invention;
FIG. 7 is a schematic diagram of a right phase contact assembly axial structure of the present invention;
FIG. 8 is a schematic axial view of the enclosed bladder of the present invention;
FIG. 9 is a schematic diagram of a coupling block and a high-temperature fireproof assembly of the present invention;
fig. 10 is a schematic structural view of a preassembled transformer substation to which the present invention is applied.
The reference numbers in the figures illustrate:
1 mounting bracket, 2 left phase push cylinder, 201 deformation guide rod, 202 shape memory metal, 203 rectangular sliding groove, 3 right phase push cylinder, 4 left phase contact assembly, 401 left phase contact push plate, 402 left phase contact support rod, 403 contact induction groove, 405 left phase lead, 5 right phase contact assembly, 501 right phase contact push plate, 502 right phase contact support rod, 503 right phase extension spring, 504 hemisphere contact, 505 right phase lead, 6 closed air bag, 601 inert gas, 7 electromagnetic induction assembly, 701 coil protective shell, 702 electromagnetic coil, 703 magnetic conduction plate, 704 electromagnetic lead, 8 high temperature fireproof assembly, 801 stable sleeve, 802 carbon dioxide air bag, 803 gas emission hole, 9 linkage block, 901T-shaped puncture needle.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
referring to fig. 1-10, a self-resetting leakage warning device for a prefabricated substation comprises a mounting bracket 1 installed in a prefabricated substation box, wherein a left phase push cylinder 2 is fixedly connected to the left end of the mounting bracket 1, a right phase push cylinder 3 is fixedly connected to the right end of the mounting bracket 1, a left phase contact assembly 4 is installed in the left phase push cylinder 2, a right phase contact assembly 5 matched with the left phase contact assembly 4 is installed in the right phase push cylinder 3, the left phase contact assembly 4 and the right phase contact assembly 5 are both electrically connected with an alarm, and an electromagnetic induction assembly 7 matched with the right phase contact assembly 5 is fixedly installed at the rear end of the right phase push cylinder 3; referring to fig. 6, the left phase contact assembly 4 includes a left phase contact push plate 401, the left phase push cylinder 2 is connected with the left phase contact push plate 401, a left phase contact support rod 402 is fixedly connected to the right end of the left phase contact push plate 401, and a contact sensing slot 403 is formed in the left side of the left phase contact support rod 402; referring to fig. 7, the right phase contact assembly 5 includes a right phase contact push plate 501, the right phase push cylinder 3 is slidably connected to the right phase contact push plate 501, a right phase contact support rod 502 is fixedly connected to the left end of the right phase contact push plate 501, a hemisphere contact 504 matched with the contact sensing slot 403 is fixedly connected to the right side of the right phase contact support rod 502, the contact sensing slot 403 is not in contact with the hemisphere contact 504, a right phase tension spring 503 is fixedly connected to the right end of the right phase contact push plate 501, and the right end of the right phase tension spring 503 is fixedly connected to the inner wall of the right phase push cylinder 3. The circuit in the prefabricated substation is detected through the electromagnetic induction assembly 7, when an electric leakage condition occurs, the electromagnetic induction assembly 7 is electrified to generate magnetic attraction to the right phase contact assembly 5, the right phase contact assembly 5 is made to move towards the electromagnetic induction assembly 7, the hemispherical contact 504 and the contact induction groove 403 are made to be connected and electrified, the alarm is made to work, electric power maintenance personnel are reminded to check the prefabricated substation, the continuity of the electric leakage phenomenon is reduced, the safety of the prefabricated substation is improved while the electric energy is saved, the service life of the prefabricated substation is prolonged, after the electric leakage phenomenon disappears, the right phase contact assembly 5 can effectively reset under the action of the right phase tension spring 503, the alarm is powered off, the circuit can be continuously and effectively detected, and the investment of maintenance cost is reduced.
Referring to fig. 2 and 4, the electromagnetic induction component 7 includes a coil casing 701, a right end of the right phase plunger 3 is fixedly connected to the coil casing 701, an electromagnetic coil 702 is fixedly installed in the coil casing 701, a magnetic conduction rod is fixedly connected to a left end of the electromagnetic coil 702, a left end of the magnetic conduction rod sequentially penetrates through the coil casing 701 and the right phase plunger 3, and is fixedly connected to a magnetic conduction plate 703, a right end of the coil casing 701 is fixedly connected to an electromagnetic wire 704, and the electromagnetic wire 704 is electrically connected to the electromagnetic coil 702. The electromagnetic wire 704 is connected with a circuit in the prefabricated substation, when the leakage phenomenon occurs, the electromagnetic coil 702 is effectively electrified, the right phase contact assembly 5 is made to act, the alarm acts, maintenance personnel are effectively reminded at the initial stage of leakage, the maintenance efficiency of the maintenance personnel when the prefabricated substation breaks down is effectively improved, the maintenance personnel is assisted to remove fault data, the power-off time of the prefabricated substation is shortened, and the economic loss caused by power-off is reduced.
Referring to fig. 2 and fig. 4, a magnetic block is fixedly connected to the right end of the right contact push plate 501, and the strong magnetic block is matched with the magnetic conductive plate 703. After the electromagnetic coil 702 is electrified, the magnetic conduction plate 703 generates magnetism, the magnetic conduction plate 703 can drive the right phase contact push plate 501 to move through the magnetic adsorption block, the hemispherical contact 504 is contacted with the contact induction groove 403 to form a communicating circuit, the alarm gives an alarm, the damage of long-term electric leakage to electric components in the prefabricated substation is effectively prevented, and the failure rate of the prefabricated substation is reduced.
Referring to fig. 2 and 6, a left phase lead 405 is fixedly connected to the upper end of the left phase contact push plate 401 and electrically connected to the alarm, the upper end of the left phase lead 405 extends to the upper side of the left phase push cylinder 2, and the left phase lead 405 is electrically connected to the contact sensing slot 403 through a connecting lead.
Referring to fig. 2 and 7, a right phase lead 505 is fixedly connected to the upper end of the right phase contact push plate 501, the upper end of the right phase lead 505 extends to the upper side of the right phase push cylinder 3 and is electrically connected to the alarm, and the left phase lead 405 is electrically connected to the dome contact 504 through a connecting lead. Through left looks wire 405 and right looks wire 505 respectively with siren electric connection, directly control the power supply line of siren, improve the sensitivity of siren during operation, improve the accuracy of alarm data.
Referring to fig. 1-4 and fig. 8, a closed air bag 6 is fixedly connected between the left phase contact push plate 401 and the right phase contact push plate 501, the left phase contact strut 402 and the right phase contact strut 502 are both located inside the closed air bag 6, and the closed air bag 6 is filled with an inert gas 601. The inert gas 601 in the closed air bag 6 performs power-off protection on the contact induction groove 403 and the hemispherical contact 504, so that complete power-off is effectively realized when the contact induction groove 403 and the hemispherical contact 504 are not in contact, the power-on and power-off stability and accuracy of the contact induction groove 403 and the hemispherical contact 504 are improved, the alarm is protected, and the output of an error counter is effectively avoided.
Referring to fig. 1-10, the method of use: the device is installed in a preassembled transformer substation through an installation bracket 1 in advance (please refer to fig. 10, the installation position is only used for reference), when an electric leakage phenomenon occurs in a circuit in the preassembled transformer substation, an electromagnetic wire 704 enables an electromagnetic coil 702 to be electrified, the electromagnetic coil 702 enables a magnetic conduction plate 703 to generate magnetism, the magnetic conduction plate 703 adsorbs a right phase contact push plate 501 through a magnetic block, the right phase contact push plate 501 slides in a right phase push barrel 3, the right phase contact push plate 501 drives a right phase contact support rod 502 and a hemisphere contact 504 to move rightwards, the hemisphere contact 504 is clamped in a contact induction groove 403, the left phase wire 405, the contact induction groove 403, the hemisphere contact induction groove 504 and the right phase wire 505 are connected, an alarm is started, an electric leakage alarm is sent, and a maintainer timely maintains and checks the preassembled transformer substation; the right phase contact strut 502 and the left phase contact strut 402 are wrapped by the closed air bag 6, through the property of the inert gas 601, the right phase contact strut 502 and the left phase contact strut 402 are kept powered off when not in contact, the left phase contact strut 402 and the right phase contact strut 502 are effectively prevented from being exposed in the air and influenced by air humidity and impurities, the power-on phenomenon occurs when the distance between the hemispherical contact 504 and the contact induction groove 403 is close, the output of error alarm is reduced, the accuracy of alarm is improved, and the working strength of maintenance personnel is reduced.
Example 2:
referring to fig. 1 to 10, wherein the same or corresponding components as those in embodiment 1 are designated by the same reference numerals as those in embodiment 1, only the points different from embodiment 1 will be described below for the sake of convenience. This example 2 differs from example 1 in that: referring to fig. 2 and 4, the right inner wall of the left phase push cylinder 2 is fixedly connected with a deformation guide rod 201, the outer end of the deformation guide rod 201 is slidably connected with a shape memory metal 202, and the left end and the right end of the shape memory metal 202 are respectively abutted against the left phase push cylinder 2 and a left contact push plate 401. When the temperature of the prefabricated substation is too high and is not reduced or spontaneous combustion occurs, the shape memory metal 202 is contracted and deformed by high temperature to drive the left-phase contact assembly 4 to slide in the left-phase push cylinder 2, so that the contact induction groove 403 moves and is in contact with the hemispherical contact 504, the alarm is powered on and gives an alarm to remind maintenance personnel to check the prefabricated substation, the damage of the prefabricated substation is effectively avoided, the alarm can also be effectively connected with cooling equipment in the prefabricated substation, and the heat dissipation efficiency is improved.
Referring to fig. 1 and 9, the high temperature fireproof assembly 8 located on the lower side of the right phase pushing cylinder 3 is installed at the upper end of the installing support 1, the high temperature fireproof assembly 8 includes a stabilizing sleeve 801, the stabilizing sleeve 801 is clamped at the upper end of the installing support 1, a carbon dioxide airbag 802 is fixedly connected in the stabilizing sleeve 801, and a plurality of gas emission holes 803 are formed in the outer end of the stabilizing sleeve 801.
Referring to fig. 6 and 9, the lower end of the left contact push plate 401 is fixedly connected with a linkage block 9, the linkage block 9 extends to the lower side of the left push cylinder 2 and is fixedly connected with a T-shaped puncture needle 901, the left end of the stabilizing sleeve 801 is open, and the right end of the T-shaped puncture needle 901 extends into the carbon dioxide air bag 802. The linkage block 9 is connected with the left phase contact push plate 401, when the left phase contact assembly 4 is driven by the shape memory metal 202 to move, the T-shaped puncture needle 901 is moved out of the carbon dioxide air bag 802, so that the carbon dioxide air bag 802 is burst, carbon dioxide in the carbon dioxide air bag is discharged, oxygen in the pre-installed transformer substation is reduced when spontaneous combustion occurs in the pre-installed transformer substation, spreading and sustaining of fire are reduced, rescue time is provided for maintenance personnel, and the damage range of the pre-installed transformer substation is reduced.
Referring to fig. 3, the lower end of the left push cylinder 2 is provided with a shape memory metal 202, and the shape memory metal 202 is slidably connected to the linkage block 9. The rectangular sliding groove 203 guides and guides the linkage block 9, so that the linkage block 9 can effectively drive the T-shaped puncture needle 901 to move, the movement offset is reduced, the generation of tearing is reduced, and the rupture speed of the carbon dioxide airbag 802 is increased.
Referring to fig. 1-10, the method of use: when the temperature in the prefabricated substation is too high or spontaneous combustion occurs, the rectangular sliding groove 203 is heated to shrink and deform, the left-phase contact push plate 401 is driven to slide in the left-phase push cylinder 2, the contact induction groove 403 moves and is in contact with the hemispherical contact 504, the alarm is electrified, spontaneous combustion alarm is given out, maintenance personnel are reminded of conducting fire extinguishing treatment on the prefabricated substation, the linkage block 9 is driven by the left-phase contact push plate 401 to synchronously move, the T-shaped puncture needle 901 is moved out of the carbon dioxide air bag 802, the carbon dioxide air bag 802 is burst, and carbon dioxide in the interior is discharged out; when installation high temperature fire prevention subassembly 8, recommend installing this device to higher position for the carbon dioxide appears sinking after leaking, improves its fire extinguishing nature.
The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.
Claims (10)
1. The utility model provides a prepackage type transformer substation is with from restoring to throne type electric leakage warning device, is including installing support (1) in the prepackage type transformer box, its characterized in that: the left end of the mounting bracket (1) is fixedly connected with a left phase push cylinder (2), the right end of the mounting bracket (1) is fixedly connected with a right phase push cylinder (3), a left phase contact assembly (4) is installed in the left phase push cylinder (2), a right phase contact assembly (5) matched with the left phase contact assembly (4) is installed in the right phase push cylinder (3), the left phase contact assembly (4) and the right phase contact assembly (5) are both electrically connected with an alarm, and an electromagnetic induction assembly (7) matched with the right phase contact assembly (5) is fixedly installed at the rear end of the right phase push cylinder (3);
the left phase contact assembly (4) comprises a left phase contact push plate (401), the left phase push plate (401) is connected in the left phase push barrel (2), a left phase contact support rod (402) is fixedly connected to the right end of the left phase contact push plate (401), and a contact induction groove (403) is formed in the left side of the left phase contact support rod (402);
contact subassembly (5) are mutually including the right side push pedal (501) of touching mutually, sliding connection has the right side push pedal (501) of touching mutually in right side push cylinder (3) mutually, right side push pedal (501) left end fixedly connected with right side branch (502) of touching mutually, right side branch (502) of touching mutually right side fixedly connected with and touch response groove (403) assorted hemisphere touch (504), and touch response groove (403) and hemisphere touch (504) contactless, right side push pedal (501) of touching mutually right end fixedly connected with right side extension spring (503), and right side extension spring (503) right-hand member and right side push cylinder (3) inner wall fixed connection mutually.
2. The self-resetting electric leakage warning device for the preassembled transformer substation according to claim 1, characterized in that: electromagnetic induction subassembly (7) are including coil protective case (701), right side looks pushing cylinder (3) right-hand member fixedly connected with coil protective case (701), fixed mounting has solenoid (702) in coil protective case (701), solenoid (702) left end fixedly connected with magnetic pole, the magnetic pole left end runs through coil protective case (701) and right side looks pushing cylinder (3) in proper order to the fixedly connected with magnetic conduction board (703), coil protective case (701) right-hand member fixedly connected with electromagnetism wire (704), and electromagnetism wire (704) and solenoid (702) electric connection.
3. The self-resetting leakage warning device for the preassembled transformer substation according to claim 2, characterized in that: the right end of the right phase contact push plate (501) is fixedly connected with a magnetic block, and the strong magnetic block is matched with the magnetic conduction plate (703).
4. The self-resetting electric leakage warning device for the preassembled transformer substation according to claim 1, characterized in that: left side looks contact push pedal (401) upper end fixedly connected with left side looks wire (405), left side looks wire (405) upper end extends to left side looks pushing cylinder (2) upside to with siren electric connection, left side looks wire (405) are through connecting wire and contact response groove (403) electric connection.
5. The self-resetting electric leakage warning device for the preassembled transformer substation according to claim 1, characterized in that: the left-phase contact push plate is characterized in that the upper end of the right-phase contact push plate (501) is fixedly connected with a right-phase lead (505), the upper end of the right-phase lead (505) extends to the upper side of the right-phase push cylinder (3) and is electrically connected with an alarm, and the left-phase lead (405) is electrically connected with the hemispherical contact (504) through a connecting lead.
6. The self-resetting electric leakage warning device for the preassembled transformer substation according to claim 1, characterized in that: the left-side phase push cylinder (2) right inner wall is fixedly connected with a deformation guide rod (201), the outer end of the deformation guide rod (201) is connected with shape memory metal (202) in a sliding mode, and the left end and the right end of the shape memory metal (202) are respectively connected with the left-side phase push cylinder (2) and a left-side phase contact push plate (401) in a butting mode.
7. The self-resetting electric leakage warning device for the preassembled transformer substation according to claim 1, characterized in that: and a closed air bag (6) is fixedly connected between the left-phase contact push plate (401) and the right-phase contact push plate (501), the left-phase contact support rod (402) and the right-phase contact support rod (502) are both positioned on the inner side of the closed air bag (6), and the closed air bag (6) is filled with inert gas (601).
8. The self-resetting electric leakage warning device for the preassembled transformer substation according to claim 1, characterized in that: high temperature fire prevention subassembly (8) that are located right side looks pushing cylinder (3) downside are installed to installing support (1) upper end, high temperature fire prevention subassembly (8) are including stabilizing sleeve (801), installing support (1) upper end joint has stabilizing sleeve (801), fixedly connected with carbon dioxide gasbag (802) in stabilizing sleeve (801), a plurality of gas diffusion holes (803) have been seted up to stabilizing sleeve (801) outer end.
9. The self-resetting leakage warning device for the preassembled transformer substation according to claim 8, characterized in that: the lower end of the left-phase contact push plate (401) is fixedly connected with a linkage block (9), the linkage block (9) extends to the lower side of the left-phase push cylinder (2) and is fixedly connected with a T-shaped puncture needle (901), the left end of the stabilizing sleeve (801) is open, and the right end of the T-shaped puncture needle (901) extends into the carbon dioxide air bag (802).
10. The self-resetting leakage warning device for the preassembled transformer substation according to claim 9, characterized in that: the lower end of the left phase push cylinder (2) is provided with a rectangular sliding groove (203), and the rectangular sliding groove (203) is in sliding connection with the linkage block (9).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110290007.1A CN113064099B (en) | 2021-03-18 | 2021-03-18 | Self-reset type electric leakage warning device for prefabricated substation |
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| CN202110290007.1A CN113064099B (en) | 2021-03-18 | 2021-03-18 | Self-reset type electric leakage warning device for prefabricated substation |
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| CN209642158U (en) * | 2019-05-09 | 2019-11-15 | 赖金兰 | A kind of intelligent box substation preventing electric leakage |
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| CN105551903A (en) * | 2016-01-18 | 2016-05-04 | 西安交通大学 | Novel automatic-recovery circuit safety device based on styrene maleic anhydride (SMA) thermal elastic material and working process of device |
| CN206301013U (en) * | 2016-12-06 | 2017-07-04 | 中铁上海工程局集团有限公司 | Box-type substation cable leakage detects warning device |
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