CN209929981U - Active detachable JP cabinet of low pressure - Google Patents

Active detachable JP cabinet of low pressure Download PDF

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Publication number
CN209929981U
CN209929981U CN201920808980.6U CN201920808980U CN209929981U CN 209929981 U CN209929981 U CN 209929981U CN 201920808980 U CN201920808980 U CN 201920808980U CN 209929981 U CN209929981 U CN 209929981U
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CN
China
Prior art keywords
compensation
chamber
plate
intelligent distribution
assembly
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Active
Application number
CN201920808980.6U
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Chinese (zh)
Inventor
王曙宁
虞坚阳
黄奇峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Changzhou Power Supply Branch Jiangsu Electric Power Co Ltd
State Grid Corp of China SGCC
State Grid Jiangsu Electric Power Co Ltd
Changzhou Power Supply Co of State Grid Jiangsu Electric Power Co Ltd
Original Assignee
Changzhou Power Supply Branch Jiangsu Electric Power Co Ltd
State Grid Corp of China SGCC
State Grid Jiangsu Electric Power Co Ltd
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Application filed by Changzhou Power Supply Branch Jiangsu Electric Power Co Ltd, State Grid Corp of China SGCC, State Grid Jiangsu Electric Power Co Ltd filed Critical Changzhou Power Supply Branch Jiangsu Electric Power Co Ltd
Priority to CN201920808980.6U priority Critical patent/CN209929981U/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/30Reactive power compensation

Abstract

The utility model provides a low-voltage active detachable JP cabinet, which comprises a cabinet body, a modularized intelligent distribution transformer assembly and a compensation assembly, wherein a partition plate is arranged in the cabinet body, the partition plate separates the space in the cabinet body into a wire inlet chamber, a wire outlet chamber, a metering chamber and a compensation chamber, the bottom of the compensation chamber is provided with an air inlet, the upper part of the compensation chamber is provided with an air outlet duct, the upper part in the metering chamber is provided with a junction box and a user charging ammeter, and the intelligent distribution transformer assembly and the lower part of the metering chamber are detachably and fixedly arranged in the metering chamber by adopting a drawer type matching structure; the compensation assembly and the compensation chamber are detachably and fixedly arranged in the compensation chamber by adopting a drawer type matching structure, and more than 1 SVG module and capacitance switching module of the compensation assembly are arranged in the compensation chamber. The utility model discloses can solve the unsatisfactory, installation of current JP cabinet compensation effect and when dismantling complex operation, difficult dilatation, the difficult problem of carrying out the integrated management betterly.

Description

Active detachable JP cabinet of low pressure
Technical Field
The utility model relates to a distribution technical field is synthesized to the low pressure, concretely relates to active detachable JP cabinet of low pressure.
Background
The JP cabinet is a novel comprehensive control box integrating electric energy distribution, metering, protection, control and reactive compensation, is widely applied to a 400V power distribution side at present, is generally installed on a column, and is matched with a transformer for use.
The JP cabinets that are common today have some disadvantages: only using the capacitance compensation may cause under-compensation or over-compensation, and the compensation speed is slow, the power factor is low, and the compensation effect is not good. Most of JP are installed on the post, and it is inconvenient to read data, and the circuit trouble can not effective early warning, is difficult for carrying out the integrated management to the JP cabinet. When the parts are installed in the early stage, maintained in the later stage, disassembled and assembled and replaced, the operation is inconvenient and the efficiency is low. When the reconstruction needs the capacity expansion, the whole cabinet needs to be reconstructed, and the operation is complex.
SUMMERY OF THE UTILITY MODEL
The utility model aims at: the utility model provides a detachable JP cabinet of low pressure active, solved unsatisfactory, the installation of current JP cabinet compensation effect with when dismantling complex operation, difficult dilatation, the difficult problem of carrying out the integrated management of carrying on.
The technical scheme of the utility model is that: the utility model discloses an active detachable JP cabinet of low pressure, including the cabinet body, its structural feature is: the intelligent distribution transformer comprises a cabinet body, and is characterized by further comprising an intelligent distribution transformer assembly and a compensation assembly which are modularized, wherein a partition plate is arranged in the cabinet body, the partition plate separates the space in the cabinet body into a wire inlet chamber, a wire outlet chamber, a metering chamber and a compensation chamber, an air inlet hole is formed in the bottom of the compensation chamber, an air outlet duct is formed in the upper portion of the compensation chamber, a junction box and a user charging ammeter are arranged in the upper portion of the metering chamber, and the intelligent distribution transformer assembly and the lower portion of the metering chamber are detachably and fixedly arranged in the metering chamber by adopting; the compensation assembly and the compensation chamber are detachably and fixedly arranged in the compensation chamber by adopting a drawer type matching structure.
The further scheme is as follows: the intelligent distribution and transformation guide rails are arranged on two sides of the lower part of the metering chamber, the intelligent distribution and transformation guide rails are fixedly arranged on the partition plates on two sides of the metering chamber, and the intelligent distribution and transformation base is arranged at the bottom of the metering chamber; the bottom of the compensation chamber is provided with a frame-shaped compensation assembly base, two sides of the compensation assembly base are respectively provided with 1 guide plate along the depth direction of the frame, and the rear end of each guide plate is provided with an outward-expanded flaring used for assisting the compensation assembly to be pushed into the compensation assembly base; the intelligent distribution transformer assembly is matched with the intelligent distribution transformer guide rail and the intelligent distribution transformer base to form a drawer type matching structure; the compensation assembly is matched with the compensation assembly base and the guide plate to form a drawer type matching structure.
The further scheme is as follows: the intelligent distribution transformer assembly comprises a framework, an instrument mounting plate, an intelligent distribution transformer terminal, a multifunctional meter, a miniature circuit breaker, a temperature and humidity controller and a wall-through terminal; the framework is a cuboid structural member defined by a plurality of stand columns, the instrument mounting plate is fixedly arranged at the front end of the framework, the intelligent distribution transformer terminal and the multifunctional meter are fixedly arranged on the instrument mounting plate, and the miniature circuit breaker and the temperature and humidity controller are fixedly arranged on the instrument mounting plate; the wall penetrating terminal is provided with more than 3, and the wall penetrating terminal is arranged on the upper portion of the framework.
The further scheme is as follows: the compensation assembly comprises an installation rack, a fan, a capacitance switching module and an SVG module; the mounting frame comprises a stand column, a bottom plate, an upper plate, a fan mounting platform and a mounting fixing plate; the base plate and the upper plate are arranged in parallel and are respectively fixedly connected with 4 stand columns through four corners of the base plate and the upper plate, ventilation holes are formed in the parts of the base plate and the upper plate, which are correspondingly provided with the SVG modules, and a plurality of module guide rails for guiding the modules are arranged on the base plate; the fan mounting platform is fixedly arranged on the upper plate, and the mounting fixing plate is fixedly arranged below the rear end of the mounting frame; the fan 32 is fixedly arranged on the fan mounting platform; the capacitance switching module and the SVG module are respectively arranged more than 1, and the capacitance switching module and the SVG module are fixedly installed between the bottom plate and the upper plate after being matched with the module guide rail in a drawing mode on the bottom plate.
The further scheme is as follows: the SVG module and the capacitance switching module are respectively provided with a plug-pull piece and connected with corresponding devices in the cabinet body in a plug-pull mode, the SVG module is a module which adopts Sinusoidal Pulse Width Modulation (SPWM) to control the on-off of the IGBT so as to realize a continuous and rapid reactive power compensation function, and the capacitance switching module is controlled by the SVG module to operate.
The further scheme is as follows: the air outlet duct of the compensation chamber consists of a shutter, a steel wire mesh, a waterproof box and a water baffle.
The utility model discloses has positive effect: (1) the utility model discloses an active detachable JP cabinet of low pressure through setting up the SVG module, can be real-time, continuous provide reactive compensation, solves the JP cabinet and owes mend, cross the problem of mending, can not follow the compensation in real time, has improved power factor. (2) The utility model discloses an active detachable JP cabinet of low pressure when needs reconstruction dilatation or change device capacity, can directly change the quantity of SVG module and electric capacity switching module in the compensation subassembly and reach the purpose, perhaps change the capacity of SVG module and electric capacity switching module and reach the purpose, it is convenient simple to change, and is fast. (3) The utility model discloses an active detachable JP cabinet of low pressure joins in marriage through increasing intelligence and becomes the subassembly, carries out the integrated management to the device is whole, collects data acquisition and shows that each circuit breaker action, temperature and humidity control etc. function in an organic whole in setting, device. (4) The utility model discloses a low pressure active detachable JP cabinet, it is through dividing into the cabinet body, compensation assembly and intelligent distribution and transformation subassembly with whole device, in production, with original equipment and wiring complicated compensation part and intelligent distribution and transformation part directly as independent subassembly equipment, do not need to operate in narrow and small cabinet body space, very big improvement the convenience and the efficiency of installation; the whole assembly is conveniently pulled out for inspection in maintenance, and can be replaced in rush repair, so that the repair time is shortened.
Drawings
FIG. 1 is a schematic structural view of the utility model, in which the door of the JP cabinet is omitted and not shown;
FIG. 2 is a rear view of FIG. 1, with a rear cover of the cabinet omitted;
FIG. 3 is a schematic structural diagram of the intelligent distribution transformer assembly and the compensation assembly of FIG. 1 with the intelligent distribution transformer assembly and the compensation assembly removed;
FIG. 4 is a schematic perspective view of the intelligent distribution assembly of FIG. 1;
FIG. 5 is a schematic structural diagram of the compensating assembly of FIG. 1;
fig. 6 is a schematic perspective view of the SVG module and the capacitor switching module shown in fig. 5 after being taken out.
The reference numbers in the above figures are as follows:
the intelligent distribution transformer comprises a cabinet body 1, a partition plate 11, a wire inlet chamber 12, a metering chamber 13, an intelligent distribution transformer guide rail 13-1, an intelligent distribution transformer base 13-2, a compensation chamber 14, a compensation assembly base 14-1, a guide plate 14-2, an air outlet duct 14-3 and a wire outlet chamber 15;
the intelligent distribution transformer comprises an intelligent distribution transformer assembly 2, a framework 21, an instrument mounting plate 22, an intelligent distribution transformer terminal 23, a multifunctional meter 24, a miniature circuit breaker 25, a temperature and humidity controller 26 and a wall-through terminal 27;
the device comprises a compensation component 3, a mounting frame 31, a stand column 31-1, a bottom plate 31-2, an upper plate 31-3, a fan mounting platform 31-4, a mounting fixing plate 31-5, a wind shield 31-6, a fan 32, a capacitance switching module 33 and an SVG module 34.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
(example 1)
Referring to fig. 1 to 3, the low-voltage active detachable JP cabinet of the present embodiment mainly includes a cabinet body 1, an intelligent distribution transformer assembly 2, and a compensation assembly 3.
The cabinet body 1 is composed of a main body, a cabinet door (not shown in the figure), and a rear cover (not shown in the figure), wherein the main body inner space of the cabinet body 1 is divided into a wire inlet chamber 12, a metering chamber 13, a compensation chamber 14, a wire outlet chamber 15 and other functional sections through a plurality of partition plates 11. The two sides of the lower part of the metering chamber 13 are provided with intelligent distribution and transformation guide rails 13-1, the intelligent distribution and transformation guide rails 13-1 are fixedly arranged on the partition plates 11 on the two sides of the metering chamber 13, and the bottom of the metering chamber 13 is provided with an intelligent distribution and transformation base 13-2; the upper part of the metering chamber 13 is provided with a junction box and a user charging ammeter. The bottom of the compensation chamber 14 is provided with a frame-shaped compensation component base 14-1, two sides of the compensation component base 14-1 are respectively provided with 1 guide plate 14-2 along the depth direction of the frame, and the rear end of each guide plate 14-2 is provided with an outward expanding flaring used for assisting the compensation component 31 to push into the compensation component base 14-1. An air inlet is formed in the bottom of the cabinet body 1 where the compensation chamber 14 is located, an air outlet duct 14-3 is formed in the side face of the upper portion of the compensation chamber 14, and the air outlet duct 14-3 is composed of a shutter, a steel wire mesh, a waterproof box and a water baffle and used for preventing rainwater from entering in use.
The intelligent distribution transformer assembly 2 mainly comprises a framework 21, an instrument mounting plate 22, an intelligent distribution transformer terminal 23, a multifunctional meter 24, a miniature circuit breaker 25, a temperature and humidity controller 26 and a wall-through terminal 27.
Referring to fig. 4, the framework 21 is a rectangular structure defined by a plurality of columns, the instrument mounting plate 22 is fixedly disposed on the framework 21 and located at the front end of the framework 21, and the intelligent distribution terminal 23, the multifunctional meter 24, the miniature circuit breaker 25 and the temperature and humidity controller 26 are fixedly disposed on the instrument mounting plate 22. Wall terminal 27 is equipped with more than 3, and wall terminal 27 locates the upper portion of skeleton 21, and wall terminal 27 is used for the intelligence to join in marriage the signal connection between transformer subassembly 21 and the JP cabinet, and the signal of connecting includes voltage sampling signal, current transformer sampling signal, switch shunt tripping signal, circuit breaker auxiliary contact, travel switch signal, JP cabinet 485 communication signal and temperature and humidity control signal. The intelligent distribution transformer assembly 2 has a GPRS remote control function. The intelligent distribution transformer assembly 2, the intelligent distribution transformer guide rails 13-1 and the intelligent distribution transformer base 13-2 on two sides of the lower end of the metering chamber 13 are of drawer type matching structures, and the intelligent distribution transformer assembly 2 is firstly pushed into the metering chamber 13 and then fixed through screws when being installed. When carrying out the maintenance, can be according to actual need, change the components and parts of intelligent distribution transformer subassembly 2 or change whole intelligent distribution transformer subassembly 2. Through the integral structural design of the intelligent distribution transformer assembly 2 and the drawer type matching structural design between the integral structural design and the metering chamber 13 of the cabinet body 1, the intelligent distribution transformer assembly 2 is very convenient to mount and take down.
Referring to fig. 5 and 6, the compensation assembly 3 mainly comprises a mounting rack 31, a fan 32, a capacitance switching module 33 and an SVG module 34. The mounting frame 31 mainly comprises a vertical column 31-1, a bottom plate 31-2, an upper plate 31-3, a fan mounting platform 31-4, a mounting fixing plate 31-5 and a wind shield 31-6; the bottom plate 31-2 and the upper plate 31-3 are arranged in parallel and are fixedly connected with 4 upright posts 31-1 by four corners of the bottom plate 31-2 and the upper plate 31-3 respectively, the bottom plate 31-2 and the upper plate 31-3 are provided with vent holes at parts correspondingly provided with the SVG modules 34, and the bottom plate 31-2 is provided with a plurality of module guide rails for guiding the modules; the fan mounting platform 31-4 is fixedly arranged on the upper plate 31-3, the mounting fixing plate 31-5 is fixedly arranged below the rear end of the mounting frame 31, and the mounting fixing plate 31-5 is used for fixing the integral compensation assembly 3 in the cabinet body 1 through screws; the fan 32 is fixedly arranged on the fan mounting platform 31-4, the fan 32 adopts a centrifugal fan and is used for providing forced air cooling heat dissipation for the SVG module 34, and air enters from the vent hole of the bottom plate 31-2 during work and flows through the SVG module 34 and then reaches the outside of the cabinet from the air outlet duct 14-3 of the cabinet body 1. The capacitance switching module 33 and the SVG module 34 (SVG is static var generator) are respectively arranged more than 1, and the capacitance switching module 33 and the SVG module 34 are fixedly arranged between the bottom plate 31-2 and the upper plate 31-3 after being matched with the module guide rail on the bottom plate 31-2 in a drawing way; when the number of the SVG modules 34 is 1, if a vacant mounting space of the SVG modules 34 is present, the wind shield 31-6 is used to block the ventilation holes on the bottom plate 31-2 at the mounting space of the vacant SVG modules 34, so as to avoid affecting the ventilation effect. The SVG module 34 and the capacitance switching module 33 are provided with plug-in components for connection so as to be connected with corresponding devices in the cabinet body 1 in a plug-in mode; the SVG module 34 takes a power semiconductor device IGBT as a core, adopts a sinusoidal pulse width modulation SPWM to control the on-off of the IGBT, realizes a continuous and rapid reactive compensation function, can rapidly and continuously adjust the reactive power of a power grid, inhibits voltage fluctuation and flicker, makes the load flow distribution of the whole power grid more reasonable, improves the quality of the power grid, ensures that a power system stably, efficiently and excellently operates, and solves the problems of three-phase imbalance, harmonic wave, reactive power and the like of the power grid. The capacitance switching module 33 is controlled by the SVG module 34 to operate.
The compensation component 3 and the compensation chamber 14 adopt a drawer type matching structure, when in installation, the compensation component 3 is matched with a guide plate 14-2 of a compensation component base 14-1 of the compensation chamber 14 and pushed into the compensation chamber 14, the compensation component 3 is fixed by screws through an installation fixing plate 31-5 on an installation frame 31 of the compensation component 3, and the assembly of the compensation component 3 and the device is completed by inserting a primary cable and inserting a secondary connector. As the JP cabinet is generally arranged on the column when in use and has a certain height from the ground, the JP cabinet is in the way of hindering the particularity of the terrain and the position of the site, and is operated by manpower in many times. When maintaining, if need change whole compensating assembly 3, for the weight reduction, can pull out SVG module 319 and electric capacity switching module 33 earlier, pull down the rest of compensating assembly 3, the weight problem need not to be considered in batch operation, has increased the convenience of dismouting. When devices are replaced, the SVG module 34 and the capacitance switching module 33 with high failure rate are generally replaced, the failure module is directly pulled out, and the new module is inserted to complete the repair, so that the operation is simple, and wiring is not needed. When the capacity needs to be reconstructed or changed, the number of the SVG modules 34 and the number of the capacitance switching modules 33 in the compensation component 3 can be directly changed to achieve the purpose, or the capacities of the SVG modules 34 and the capacitance switching modules 33 can be changed to achieve the purpose. The replacement is convenient and simple, and the speed is high.
The above embodiments are illustrative of the specific embodiments of the present invention, but not limiting to the present invention, and those skilled in the relevant art can also make various changes and modifications to obtain the equivalent technical solutions without departing from the spirit and scope of the present invention, so that all equivalent technical solutions should fall under the protection scope of the present invention.

Claims (6)

1. The utility model provides a detachable JP cabinet of low pressure active, includes the cabinet body, its characterized in that: the intelligent distribution transformer comprises a cabinet body, and is characterized by further comprising an intelligent distribution transformer assembly and a compensation assembly which are modularized, wherein a partition plate is arranged in the cabinet body, the partition plate separates the space in the cabinet body into a wire inlet chamber, a wire outlet chamber, a metering chamber and a compensation chamber, an air inlet hole is formed in the bottom of the compensation chamber, an air outlet duct is formed in the upper portion of the compensation chamber, a junction box and a user charging ammeter are arranged in the upper portion of the metering chamber, and the intelligent distribution transformer assembly and the lower portion of the metering chamber are detachably and fixedly arranged in the metering chamber by adopting; the compensation assembly and the compensation chamber are detachably and fixedly arranged in the compensation chamber by adopting a drawer type matching structure.
2. The low-voltage active detachable JP cabinet according to claim 1, wherein: the intelligent distribution and transformation guide rails are arranged on two sides of the lower part of the metering chamber, the intelligent distribution and transformation guide rails are fixedly arranged on the partition plates on two sides of the metering chamber, and the intelligent distribution and transformation base is arranged at the bottom of the metering chamber; the bottom of the compensation chamber is provided with a frame-shaped compensation assembly base, two sides of the compensation assembly base are respectively provided with 1 guide plate along the depth direction of the frame, and the rear end of each guide plate is provided with an outward-expanded flaring used for assisting the compensation assembly to be pushed into the compensation assembly base; the intelligent distribution transformer assembly is matched with the intelligent distribution transformer guide rail and the intelligent distribution transformer base to form a drawer type matching structure; the compensation assembly is matched with the compensation assembly base and the guide plate to form a drawer type matching structure.
3. The low-voltage active detachable JP cabinet according to claim 1, wherein: the intelligent distribution transformer assembly comprises a framework, an instrument mounting plate, an intelligent distribution transformer terminal, a multifunctional meter, a miniature circuit breaker, a temperature and humidity controller and a wall-through terminal; the framework is a cuboid structural member defined by a plurality of stand columns, the instrument mounting plate is fixedly arranged at the front end of the framework, the intelligent distribution transformer terminal and the multifunctional meter are fixedly arranged on the instrument mounting plate, and the miniature circuit breaker and the temperature and humidity controller are fixedly arranged on the instrument mounting plate; the wall penetrating terminal is provided with more than 3, and the wall penetrating terminal is arranged on the upper portion of the framework.
4. The low-voltage active detachable JP cabinet according to claim 1, wherein: the compensation assembly comprises a mounting rack, a fan, a capacitance switching module and an SVG module; the mounting frame comprises a stand column, a bottom plate, an upper plate, a fan mounting platform and a mounting fixing plate; the base plate and the upper plate are arranged in parallel and are respectively fixedly connected with 4 stand columns through four corners of the base plate and the upper plate, ventilation holes are formed in the parts of the base plate and the upper plate, which are correspondingly provided with the SVG modules, and a plurality of module guide rails for guiding the modules are arranged on the base plate; the fan mounting platform is fixedly arranged on the upper plate, and the mounting fixing plate is fixedly arranged below the rear end of the mounting frame; the fan is fixedly arranged on the fan mounting platform; the capacitance switching module and the SVG module are respectively arranged more than 1, and the capacitance switching module and the SVG module are fixedly installed between the bottom plate and the upper plate after being matched with the module guide rail in a drawing mode on the bottom plate.
5. The low-voltage active detachable JP cabinet according to claim 4, wherein: SVG module and electric capacity switching module have plug respectively, adopt the plug mode to be connected with the internal corresponding device of cabinet, thereby the SVG module is for adopting sinusoidal pulse width modulation SPWM control IGBT break-make to realize the module of continuous quick reactive compensation function, electric capacity switching module by SVG module control operation.
6. A low-voltage active detachable JP cabinet according to any one of claims 1 to 5, characterized in that: the air outlet duct of the compensation chamber consists of a shutter, a steel wire mesh, a waterproof box and a water baffle.
CN201920808980.6U 2019-05-31 2019-05-31 Active detachable JP cabinet of low pressure Active CN209929981U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920808980.6U CN209929981U (en) 2019-05-31 2019-05-31 Active detachable JP cabinet of low pressure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920808980.6U CN209929981U (en) 2019-05-31 2019-05-31 Active detachable JP cabinet of low pressure

Publications (1)

Publication Number Publication Date
CN209929981U true CN209929981U (en) 2020-01-10

Family

ID=69093802

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920808980.6U Active CN209929981U (en) 2019-05-31 2019-05-31 Active detachable JP cabinet of low pressure

Country Status (1)

Country Link
CN (1) CN209929981U (en)

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