CN212659869U - Photovoltaic box type transformer overhauling device and box type transformer - Google Patents
Photovoltaic box type transformer overhauling device and box type transformer Download PDFInfo
- Publication number
- CN212659869U CN212659869U CN202021707629.7U CN202021707629U CN212659869U CN 212659869 U CN212659869 U CN 212659869U CN 202021707629 U CN202021707629 U CN 202021707629U CN 212659869 U CN212659869 U CN 212659869U
- Authority
- CN
- China
- Prior art keywords
- time relay
- over switch
- box
- transformer
- shunt release
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 29
- 230000005611 electricity Effects 0.000 claims description 3
- 230000008859 change Effects 0.000 abstract description 17
- 230000009471 action Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 206010014357 Electric shock Diseases 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
Images
Landscapes
- Keying Circuit Devices (AREA)
Abstract
The utility model relates to a photovoltaic box transformer overhauls device and box transformer, photovoltaic box transformer overhauls device includes many change over switch, time relay, a plurality of shunt release and a plurality of electric operating mechanism, time relay is connected to many change over switch's first output, a plurality of shunt release are connected jointly to time relay's output and many change over switch's second output, a plurality of shunt release connect the electric operating mechanism who corresponds, many change over switch and time relay are through controlling different shunt release actions, and then control different electric operating mechanism and trigger the separating brake moulded case circuit breaker, control a plurality of moulded case circuit breakers, wherein, many change over switch and time relay install on the low-voltage chamber, shunt release and electric operating mechanism install on the moulded case circuit breaker of low-voltage inlet wire. The utility model discloses a secondary control circuit operation circuit breaker has avoided the inconvenience of traditional personnel direct operation and the risk of electrocuteeing.
Description
Technical Field
The utility model relates to a box transformer field of photovoltaic especially relates to a box transformer of photovoltaic overhauls device and box transformer.
Background
The solar module encapsulates the solar cell in the photovoltaic module, under the irradiation condition of sunlight, the solar cell converts light energy into direct current electric energy, the direct current is converted into alternating current through the photovoltaic inverter, and the alternating current is boosted through the box-type transformer and then is transmitted to a power grid.
The box type transformer (generally referred to as a box transformer) integrates the traditional transformer and medium-voltage and low-voltage switch equipment, and has the advantages of small volume, light weight, low noise, low loss, high reliability and the like. The existing box-type transformer is usually manually disconnected during troubleshooting or operation, and has certain electric shock risk due to the compact structure of the box-type transformer. Meanwhile, the manual cutting process often requires a large force to act, and the operation is very inconvenient.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention has been made in order to provide a photovoltaic box transformer inspection and repair device and a box transformer that overcome the above problems or at least partially solve the above problems.
According to an aspect of the utility model, a photovoltaic box transformer overhauls device is provided, including many change over switches, time relay, a plurality of shunt release and a plurality of electric operating mechanism, many change over switches's first output connection time relay, a plurality of shunt release are connected jointly to time relay's output and many change over switches's second output, a plurality of shunt release connect the electric operating mechanism who corresponds, many change over switches and time relay are through controlling different shunt release action, and then control different electric operating mechanism and trigger the branch brake moulded case circuit breaker, control a plurality of moulded case circuit breakers, wherein, many change over switches and time relay install on the low-voltage chamber, shunt release and electric operating mechanism install on low-voltage inlet wire moulded case circuit breaker.
In one possible embodiment, the time relay is an electromagnetic energized time delay type time relay.
In one possible embodiment, the multi-position switch is a 16-step switch.
In one possible implementation, the multi-bit switch is model LW 5-N.
According to the utility model discloses an aspect, the utility model provides a box-type transformer, including the high tension cable inlet wire unit that connects gradually, load switch fuse unit, 35kV high-voltage transformer unit, the case becomes low voltage inlet wire unit, the case becomes inside auxiliary transformer and distribution unit and the box transformer maintenance device of above-mentioned photovoltaic, many change over switches and time relay install on the low-voltage outdoor shell at case becomes low voltage inlet wire unit place, shunt release and electric operating mechanism install on the low-voltage inlet wire moulded case circuit breaker that the case becomes low voltage inlet wire unit, wherein, the case becomes low voltage inlet wire unit and is used for compiling the low-voltage electricity that the dc-to-ac converter sent over, inside auxiliary transformer and the distribution unit of case change are used for time relay, shunt release and electric operating mechanism provide the power.
The utility model discloses a secondary control circuit operation circuit breaker has avoided the inconvenience of traditional personnel direct operation and the risk of electrocuteeing. The device controls the tripping of a plurality of molded case circuit breakers through a multi-position change-over switch and a time delay type time relay. The device is safe and convenient to operate.
The above description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following detailed description of the present invention is given.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a photovoltaic box-type transformer overhaul device provided by an embodiment of the present invention;
fig. 2 is a schematic view of an installation position of a photovoltaic box-type transformer overhauling device provided by the embodiment of the utility model;
fig. 3 is an electrical schematic diagram of a box-type transformer according to an embodiment of the present invention;
FIG. 4 is a control schematic of the transfer switch;
fig. 5 is a control schematic diagram of the shunt release;
description of reference numerals:
the system comprises a 1-time relay, a 2-time relay, a 3-shunt release, a 4-electric operating mechanism, a 51-high-voltage cable wire inlet unit, a 52-load switch fuse unit, a 53-35kV high-voltage transformer unit, a 54-box transformer low-voltage wire inlet unit, a 55-box transformer internal auxiliary transformer and a power distribution unit.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The terms "comprises" and "comprising," and any variations thereof, in the described embodiments of the invention, and in the claims and drawings, are intended to cover a non-exclusive inclusion, such as a list of steps or elements.
The technical solution of the present invention will be described in further detail with reference to the accompanying drawings and embodiments.
As shown in fig. 1-2, the embodiment of the utility model provides a photovoltaic box transformer overhauls device, include:
many change over switch 2, time relay 1, a plurality of shunt release 3 and a plurality of electric operating mechanism 4, many change over switch 2's first output is connected time relay 1, time relay 1's output with many change over switch 2's second output connects a plurality of shunt release 3 jointly, and a plurality of shunt release 3 connect the electric operating mechanism 4 that corresponds, many change over switch 2 and time relay 1 are through controlling the action of different shunt release 3, and then control different electric operating mechanism 4 and trigger the branch brake moulded case circuit breaker, control a plurality of moulded case circuit breakers, and wherein, many change over switch 2 and time relay 1 are installed on the low-voltage chamber, and shunt release 3 and electric operating mechanism 4 are installed on low-voltage inlet wire moulded case circuit breaker.
In one example, the time relay 1, the shunt release 3 and the electric operating mechanism 4 are all supplied with AC220V voltage and are provided by a control transformer carried by a box transformer.
In one example, the time relay 1 is an electromagnetic type electrified time delay type time relay, the time delay range is adjustable within 1-20 s, the impact shock resistance is realized, the adjustment is convenient, and the action time range is set to be 5-10 s. The auxiliary node is normally open contact, after the coil applies working voltage, it will start time delay immediately, when the time delay is up, it will output control signal, and the normally open contact will close. The time relay needs to be powered off and reset before the time relay can act again.
In one example, the multi-position change-over switch 2 is a 12-gear change-over switch, and a single change-over switch controls 12 incoming line molded case circuit breakers at most.
In one example, the shunt release 3 has a self-reset function.
In one example, the multi-position switch 2 is model LW5-N, where N is selectable from 1 to 16 based on the number of touch steps.
The electric operating mechanism 4 is installed on the circuit breaker through a bolt, a gear corresponding to the inlet wire molded case circuit breaker to be opened is selected by operating the multi-position change-over switch 2, after the corresponding gear of the multi-position change-over switch 2 is switched on, the electrified time delay type time relay starts to time, 5 s-10 s after the set time is up, the shunt release 3 corresponding to the loop is switched on to act, and then the electric operating mechanism is controlled to trigger the opening molded case circuit breaker. After the circuit breaker acts, the change-over switch is manually returned to the zero position, and the time relay and the shunt release 3 are reset.
When a loop needs to be overhauled, the multi-position change-over switch 2 is rapidly rotated to a corresponding gear, the multi-position change-over switch 5 s-10 s at a corresponding position is switched on, the normally open contact of the time relay 1 is closed, the shunt release 3 is triggered to act, and then the electric operating mechanism 4 works to disconnect a corresponding circuit breaker. After the circuit breaker trips, the multi-position change-over switch 2 is rotated to a zero position, and the time relay and the shunt coil are reset. The other circuit breakers can be controlled to trip by continuously operating the multi-position change-over switch.
As shown in fig. 3, the embodiment of the present invention further provides a box-type transformer, which comprises a high voltage cable incoming line unit 51, a load switch fuse unit 52, a 35kV high voltage transformer unit 53, a box transformer low voltage incoming line unit 54, a box transformer internal auxiliary transformer and distribution unit 55, and the above photovoltaic box-type transformer overhaul device, which are connected in sequence, wherein the multi-position switch 2 and the time relay 1 are installed on the low voltage chamber housing where the box transformer low voltage incoming line unit 54 is located, and the shunt release 3 and the electric operating mechanism 4 are installed on the low voltage incoming line molded case circuit breaker of the box transformer low voltage incoming line unit 54, wherein the high voltage cable incoming line unit 51 is used for 35kV high voltage cable connection, the load switch fuse unit 52 is used for protecting and overhauling the 35kV high voltage box transformer, the 35kV high voltage transformer unit 53 is used for converting low voltage into 35kV high voltage, the box transformer substation low-voltage incoming line unit 54 is used for collecting low-voltage electricity sent by the inverter, and the box transformer substation internal auxiliary transformer and power distribution unit 55 is used for providing power for box transformer substation body measurement and control, protection and monitoring equipment. The main point of fig. 3 is the auxiliary transformer and power distribution unit 55 inside the box-type substation, which mainly explains the supply of AC220V power required by the time relay, the shunt coil and the electric operating mechanism used in the present invention.
Referring to fig. 4, a multi-position change-over switch 2 and a time relay 1 control a plurality of shunt release 3, wherein the time relay 1 is triggered by a first output terminal of the change-over switch 2, a first control signal is sent to the shunt release 3 by a second output terminal of the change-over switch 2, the time relay 1 generates a time delay and then sends the time delay to the shunt release 3, and the first control signal and the second control signal jointly trigger the shunt release 3.
Referring to fig. 5, a circuit breaker is provided with a shunt release 3 and an electric operating mechanism 4, and the shunt release 3 triggers the electric operating mechanism 4 to control the circuit breaker.
The above embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above embodiments are only specific embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (5)
1. The utility model provides a photovoltaic box transformer overhauls device which characterized in that includes:
a multi-position change-over switch (2), a time relay (1), a plurality of shunt release devices (3) and a plurality of electric operating mechanisms (4), the first output end of the multi-position change-over switch (2) is connected with the time relay (1), the output end of the time relay (1) and the second output end of the multi-position change-over switch (2) are connected with a plurality of shunt release devices (3) together, the shunt release devices (3) are connected with corresponding electric operating mechanisms (4), the multi-position change-over switch (2) and the time relay (1) control different shunt release devices (3) to act, thereby controlling different electric operating mechanisms (4) to trigger the opening molded case circuit breaker and controlling a plurality of molded case circuit breakers, wherein, the multi-position change-over switch (2) and the time relay (1) are arranged on the low-pressure chamber, the shunt release (3) and the electric operating mechanism (4) are installed on the low-voltage incoming line molded case circuit breaker.
2. The photovoltaic box transformer servicing device according to claim 1, characterized in that the time relay (1) is an electromagnetic energized time delay type time relay.
3. The photovoltaic box transformer overhaul device according to claim 1, wherein the multi-position change-over switch (2) is a 16-gear change-over switch.
4. The photovoltaic box transformer servicing device according to claim 1, characterized in that the multi-position change-over switch (2) is model LW 5-N.
5. A box-type transformer is characterized by comprising a high-voltage cable incoming line unit (51), a load switch fuse unit (52), a 35kV high-voltage transformer unit (53), a box-type transformer low-voltage incoming line unit (54), a box-type transformer internal auxiliary transformer and a power distribution unit (55) which are sequentially connected and the photovoltaic box-type transformer overhauling device as claimed in any one of claims 1 to 4, wherein a multi-position change-over switch (2) and a time relay (1) are installed on a low-voltage outdoor shell where the box-type transformer low-voltage incoming line unit (54) is located, a shunt release (3) and an electric operating mechanism (4) are installed on a low-voltage incoming line molded case circuit breaker of the box-type transformer low-voltage incoming line unit (54), wherein the box-type transformer low-voltage incoming line unit (54) is used for collecting low voltage electricity sent by an inverter, and the box-type transformer internal auxiliary transformer and the power distribution unit (55), The shunt release (3) and the electric operating mechanism (4) provide power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021707629.7U CN212659869U (en) | 2020-08-17 | 2020-08-17 | Photovoltaic box type transformer overhauling device and box type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021707629.7U CN212659869U (en) | 2020-08-17 | 2020-08-17 | Photovoltaic box type transformer overhauling device and box type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212659869U true CN212659869U (en) | 2021-03-05 |
Family
ID=74769540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021707629.7U Active CN212659869U (en) | 2020-08-17 | 2020-08-17 | Photovoltaic box type transformer overhauling device and box type transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212659869U (en) |
-
2020
- 2020-08-17 CN CN202021707629.7U patent/CN212659869U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201689159U (en) | State monitoring system of circuit breaker | |
| CN102244380B (en) | Open-phase protection method and device of 35kV American box-type substation for wind power station | |
| CN102037534A (en) | Circuit breaker with high speed mechanically-interlocked grounding switch | |
| CN111146755A (en) | Feeder terminal and line protection device | |
| US11017967B2 (en) | Distribution grounding switch to support distributed energy resources | |
| CN114188971A (en) | Photovoltaic box-type substation | |
| CN212659869U (en) | Photovoltaic box type transformer overhauling device and box type transformer | |
| CN203242926U (en) | Low-voltage power distribution cabinet with residual current protection function | |
| KR20130002379A (en) | An effective operation method for photovoltaic power generation system through fault detect on power transmission system | |
| CN209748207U (en) | Low-voltage grid-connected switch | |
| CA3140150A1 (en) | Gas insulated grounding switch | |
| CN102082419A (en) | Large-current medium-voltage switch cabinet capable of realizing arc light protection | |
| CN108963956A (en) | A kind of Intellectualized Switchgear of high-voltage switch gear | |
| CN208508525U (en) | A kind of grid-connected power generation system arc light protecting device | |
| CN204905742U (en) | Middling pressure looped netowrk vacuum circuit breaker cabinet | |
| CN216721270U (en) | Photovoltaic box-type substation | |
| CN214069563U (en) | Novel GIS circuit breaker three-phase inconsistent protection circuit | |
| CN219697312U (en) | Wind generating set and grid-connected contactor cabinet | |
| CN220155459U (en) | Multifunctional circuit breaker for photovoltaic | |
| CN201498986U (en) | Isolating arc extinguishing cabinet | |
| CN214313030U (en) | Intelligent pole-mounted vacuum circuit breaker for transformation and upgrading | |
| CN215933361U (en) | High-voltage switch transformer combined electrical apparatus capable of being switched frequently | |
| CN214959445U (en) | Safe operation device of direct current combiner box | |
| CN217134236U (en) | Universal circuit breaker delay starting circuit with cost control function | |
| CN220107590U (en) | Switching device and wind power system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210713 Address after: 550000 No.1, middle section of Huaxi Avenue, Nanming District, Guiyang City, Guizhou Province Patentee after: POWERCHINA GUIZHOU ENGINEERING Co.,Ltd. Patentee after: CNOOC International Finance Leasing Co.,Ltd. Address before: No.1, middle section of Huaxi Avenue, Nanming District, Guiyang City, Guizhou Province Patentee before: POWERCHINA GUIZHOU ENGINEERING Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220530 Address after: 300450-3, 7-803-103, building 4, Minghai center, No. 426 Hulunbuir Road, Tianjin pilot free trade zone (Dongjiang Bonded Port Area), Tianjin Patentee after: CNOOC International Finance Leasing Co.,Ltd. Address before: 550000 No.1, middle section of Huaxi Avenue, Nanming District, Guiyang City, Guizhou Province Patentee before: POWERCHINA GUIZHOU ENGINEERING Co.,Ltd. Patentee before: CNOOC International Finance Leasing Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240526 Address after: 550000 No.1, middle section of Huaxi Avenue, Nanming District, Guiyang City, Guizhou Province Patentee after: POWERCHINA GUIZHOU ENGINEERING Co.,Ltd. Country or region after: China Address before: 300450-3, 7-803-103, building 4, Minghai center, No. 426 Hulunbuir Road, Tianjin pilot free trade zone (Dongjiang Bonded Port Area), Tianjin Patentee before: CNOOC International Finance Leasing Co.,Ltd. Country or region before: China |