CN216598529U - Novel high-voltage reactive automatic compensation device - Google Patents
Novel high-voltage reactive automatic compensation device Download PDFInfo
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- CN216598529U CN216598529U CN202123310584.7U CN202123310584U CN216598529U CN 216598529 U CN216598529 U CN 216598529U CN 202123310584 U CN202123310584 U CN 202123310584U CN 216598529 U CN216598529 U CN 216598529U
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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Abstract
The utility model discloses a novel capacitor cabinet of a high-voltage reactive automatic compensation device, relating to the field of capacitor cabinets; the utility model comprises a control cabinet and a capacitor cabinet group; the control cabinet comprises a controller and an isolating switch; the capacitor cabinet group comprises capacitor cabinets arranged side by side, and each capacitor cabinet comprises a grouped capacitor module; the split type cabinet body is adopted, so that the transportation and the installation are convenient, and the operation is safer and more reliable; each group of capacitors is placed in a split cabinet, so that once a fault occurs, other parts cannot be influenced, the capacitors can be overhauled in groups, and the normal operation of other equipment cannot be influenced; every the capacitor box top sets up the movable cabinet top, and the movable cabinet top can rotate alone and open, when the equipment cabinet body, can lift the cabinet top, makes things convenient for the installation and the dismantlement of capacitor box upper portion high voltage bus.
Description
Technical Field
The utility model belongs to the technical field of the capacitor cabinet and specifically relates to a novel reactive automatic compensation of high pressure device capacitor cabinet is related to.
Background
The high-voltage reactive power compensation device is generally applied to large and small power users such as substations, industrial and mining enterprises and the like at present, and is used for reactive power compensation and power factor improvement, and the reactive power compensation device has become important equipment in a modern flexible alternating current transmission system by virtue of lower harmonic wave, higher efficiency and faster dynamic response.
The high-voltage reactive power compensation device consists of a capacitor cabinet and a control cabinet which are matched, cabinet body combinations of different models are configured according to different scene requirements, but in the actual use process, once the high-voltage reactive power compensation device is installed, the number of the capacitor cabinets is difficult to increase or decrease according to the change of the use condition, and different scene requirements cannot be met; the standardized design and installation cannot be realized, and the construction is complex; in addition, when a plurality of groups of components are placed in the existing capacitor cabinet, once the components break down, the adjacent other components are affected, and even the whole equipment is stopped due to failure.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a novel high-pressure idle automatic compensation device condenser cabinet.
The technical problem of the utility model is realized through following technical scheme: a novel capacitor cabinet of a high-voltage reactive automatic compensation device comprises a control cabinet and a capacitor cabinet group; the control cabinet is electrically connected with the capacitor cabinet group; the control cabinet comprises a controller and an isolating switch; the capacitor cabinet group comprises capacitor cabinets arranged side by side, and each capacitor cabinet comprises a grouped capacitor module; and a movable cabinet top is arranged at the top of each capacitor cabinet and can be opened in a rotating mode independently.
Furthermore, a vertical mounting plate is arranged in the control cabinet, and the isolating switch is arranged on the vertical mounting plate.
Further, a handle and a visible window are arranged on the cabinet door of the control cabinet.
Furthermore, a control protection terminal is installed on the cabinet door of the capacitor cabinet; the capacitor cabinet is characterized in that three layers of mounting plates are arranged in the capacitor cabinet from top to bottom, insulators are arranged on the top layer mounting plate, the spraying progressive type fuse, the current transformer and the vacuum contactor are arranged on the middle layer mounting plate, a discharge coil is arranged on the lower layer mounting plate, and a reactor and a capacitor are arranged on a bottom plate of the capacitor cabinet.
Furthermore, the control protection terminal is connected with the vacuum contactor through a control cable, and the control protection terminal is connected with the discharge coil and the current transformer through a sampling cable.
Further, the movable cabinet top comprises a top plate, one end of the top plate is rotatably connected to the top of the capacitor cabinet through a rotating shaft, and the other end of the top plate is locked through a fastening piece.
Further, the fastener is a wing nut.
To sum up, the utility model discloses following beneficial effect has:
1. the utility model discloses a modularization grouping structural design, with controller and isolator alone assemble in a switch board, assemble components and parts such as vacuum contactor, current transformer, reactor and condenser in independent electric capacity cabinet, a plurality of electric capacity cabinets are installed side by side, unified switch board of configuration, rationally distributed, convenient maintenance, improve equipment overall utilization rate practices thrift area.
2. The utility model discloses when carrying out the integrated equipment production design, do not need the device to carry out the change on the hardware can realize the increase of grouping capacitor module quantity to say theoretically, can infinitely expand the quantity of grouping capacitor module, make things convenient for reactive power compensator to realize the modularized design, reduce the degree of difficulty of integrated equipment design and construction, thereby reduced reactive power compensator's cost, improved economic benefits.
3. The utility model discloses cabinet body top adopts and to lift open project organization, and the roof is through pivot and cabinet body fixed, and the pivot can be 180 rotatory, and the roof is fixed through adopting butterfly nut, and butterfly nut's fastening need not adopt any instrument to realize with manual, makes things convenient for the installation and the dismantlement of cupboard upper portion high-voltage bus.
Drawings
FIG. 1 is a schematic view of the apparatus of the present invention;
FIG. 2 is a side view of the internal layout of the capacitor cabinet;
FIG. 3 is a front view of the internal layout of the capacitor cabinet;
FIG. 4 is a side view of the internal layout of the electric control cabinet;
FIG. 5 is a schematic view showing the top plate in an open state;
fig. 6 is a diagram of the electric control system of the present invention.
Description of reference numerals:
1. a control cabinet; 101. a controller; 102. a handle; 103. an isolating switch; 104. a visible window; 105. a vertical mounting plate;
2. a capacitor cabinet; 201. controlling a protection terminal; 202. an insulator; 203. a spraying-type fuse; 204. a current transformer; 205. a vacuum contactor; 206. a discharge coil; 207. a reactor; 208. a capacitor; 209. a lightning arrester;
3. a movable cabinet top; 301. a top plate; 302. a rotating shaft; 303. a fastener;
4. a high voltage bus bar.
Detailed Description
The utility model is suitable for an in the 10KV of 110kV, 35kV transformer substation or 6 KV's electric wire netting. The device realizes the comprehensive control of the voltage and the reactive power of the transformer substation through the automatic tracking switching of the parallel capacitor bank according to the requirements of the bus voltage and the reactive power, and ensures that the quality of the power supply voltage and the power factor meet the expected requirements, thereby achieving the purposes of reducing the electric energy loss, reducing the voltage fluctuation and improving the equipment utilization rate.
The present invention will be described in further detail with reference to the accompanying drawings. Referring to fig. 1-6, the utility model discloses a novel capacitor cabinet of a high-voltage reactive automatic compensation device, which comprises a control cabinet 1 and a capacitor cabinet group; the control cabinet 1 is electrically connected with the capacitor cabinet group.
The control cabinet 1 comprises a controller 101 and an isolating switch 103; the controller 101 adopts a large-screen touch screen liquid crystal display, full Chinese menu display, touch operation, friendly man-machine interface and simple operation, and a user can conveniently check the analog quantity, the switching value, the alarm information, the operation parameters and the like collected by the controller 101 through the display; the isolation switch 103 effectively protects the personal safety of the operator.
Set up handle 102 and visual window 104 on the cabinet door of switch board 1, the condition in the switching cabinet door and the observation cabinet of being convenient for sets up vertical installation board 105 in the switch board 1, isolator 103 sets up on vertical installation board 105.
The capacitor cabinet group comprises capacitor cabinets 2 arranged side by side, and each capacitor cabinet 2 comprises a grouped capacitor module; besides displaying the voltage, the current and the power factor of the low-voltage side of the main transformer in real time, the controller 101 simultaneously displays the received voltage data of the capacitor bank, the switching state, the automatic/local operation mode, the protection alarm locking information and the like measured by each group of control protection terminals 201 on a liquid crystal screen in real time, so that equipment maintenance or overhaul personnel can visually read and record the pressure data in the current stabilization equipment and timely master the operation condition of the current stabilization compensation equipment.
A control protection terminal 201 is installed on the cabinet door of the capacitor cabinet 2; three layers of mounting plates are arranged in the capacitor cabinet 2 from top to bottom, an insulator 202 is arranged on the top mounting plate, a spray-type fuse 203, a current transformer 204 and a vacuum contactor 205 are arranged on the middle mounting plate, a discharge coil 206 is arranged on the lower mounting plate, and a reactor 207 and a capacitor 208 are arranged on the bottom plate of the capacitor cabinet 2; and a plurality of groups of lightning arresters 209 are also arranged in the capacitor box 2.
The control protection terminal 201 is connected with the vacuum contactor 205 through a control cable, and the control protection terminal 201 is connected with the discharge coil 206 and the current transformer 204 through a sampling cable. The controller 101 collects the voltage and current signals of the high-voltage bus 4 through the current transformer 204, calculates and judges the power factor of the high-voltage bus 4 and the demand condition of reactive power, and controls the grouped capacitor module.
In addition, the controller 101 communicates with the control protection terminal 201 of the capacitor box 2 through an RS485 interface, so as to realize remote control and remote measurement functions; the control protection terminals 201 of the capacitor cabinets 2 are connected in series through RS485 interfaces, and each control protection terminal 201 has a unique communication address number.
After the controller 101 sends a switching-on/off instruction for controlling the capacitor bank to a certain capacitor cabinet 2, the control protection terminal 201 of the capacitor cabinet 2 receives the instruction and then controls the switching-on/off action of the switch, so as to realize the switching-on and switching-off of the capacitor bank; the control protection terminal 201 judges according to the voltage and current signals of the discharge coil 206 and the current transformer 204, so as to protect the capacitor bank.
The top of each capacitor cabinet 2 is designed to be a movable cabinet top 3, and the movable cabinet tops 3 can be independently rotated and opened; the movable cabinet top 3 comprises a top plate 301, one end of the top plate 301 is rotatably connected to the top of the capacitor cabinet through a rotating shaft 302, the other end of the top plate 301 is locked through a fastening piece 303, a butterfly nut is usually selected to fasten the top plate 301, the movable cabinet top 3 can be opened and closed manually without any tool, and the installation and the disassembly of the high-voltage bus 4 on the upper portion of the capacitor cabinet 2 are facilitated.
The utility model discloses have following function:
1. overvoltage and voltage loss locking protection functions:
the high-voltage reactive compensation controller 101 detects the voltage of the bus through a voltage transformer, and when the detected voltage of the bus is higher than a set overvoltage locking protection voltage fixed value, the controller 101 sends an instruction to cut off the high-voltage vacuum contactor 205; at this time, the controller 101 sends out a lock-up command to lock up all control functions, and the lock-up command is released until the voltage signal is detected to be lower than the set voltage fixed value.
Similarly, when the voltage of the bus is detected to be lower than the set voltage loss locking protection voltage fixed value, the controller 101 sends an instruction to cut off the high-voltage vacuum contactor 205; at this time, the controller 101 sends out a lock-up command to lock up all control functions, and the lock-up command is released until the voltage signal is detected to be higher than the set voltage fixed value.
2. The function of refusing locking protection:
the high-voltage reactive compensation controller 101 is connected with the control protection terminal 201 of the capacitor cabinet 2 through a 485 communication line, so that monitoring, control and protection of the capacitor cabinet 2 are realized, and the control protection terminal 201 on the capacitor cabinet 2 uploads command execution conditions, detection information and the like to the controller 101 through the 485 communication line; when the controller 101 sends an instruction for inputting the high-voltage vacuum contactor 205, and the control protection terminal 201 of the capacitor box 2 receives the instruction and performs corresponding control, and does not detect an auxiliary position signal input by the high-voltage vacuum contactor 205, corresponding information is uploaded to the controller 101, and the controller 101 sends a rejection locking protection instruction at this time, locks a control function of the corresponding capacitor box 2, and sends a rejection locking alarm signal.
3. The control protection terminal 201 of each capacitor cabinet 2 has 2 sections of overcurrent protection and zero sequence voltage protection functions, and takes single capacitor fuse protection as backup protection:
the control protection terminal 201 has a 2-section overcurrent protection function, the current transformer 204 in the capacitor cabinet 2 is used for detecting the running current of the capacitor 208, when the current is greater than the set fixed value of the 2-section overcurrent protection, the control protection terminal 201 controls the high-voltage vacuum contactor 205 to be cut off, and meanwhile, the information is uploaded to the high-voltage reactive power compensation controller 101;
similarly, the zero sequence voltage protection function detects the running zero sequence voltage of the capacitor 208 through the discharge coil 206 of the capacitor box 2, when the voltage is greater than the set fixed value of the zero sequence voltage protection, the control protection terminal 201 controls to cut off the high-voltage vacuum contactor 205, and meanwhile, the information is uploaded to the high-voltage reactive compensation controller 101;
the two protection functions belong to an active protection function, and when the two protection functions fail, a fuse installed on a primary loop of a single capacitor becomes a backup protection of the capacitor 208.
4. The fault blocking protection function can automatically isolate a fault group, and does not influence the switching of other capacitor groups:
when the two protection functions in item 3 perform control actions, it indicates that the capacitor 208 has a fault, and at this time, the controller 101 receives the information uploaded by the control protection terminal 201 of the capacitor box 2 and then sends a fault lockout protection instruction, locks the control function of the corresponding capacitor box 2, and sends a lockout alarm audible and visual signal.
Above do the preferred embodiment of the present invention, not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (7)
1. The utility model provides a novel high pressure reactive automatic compensation device condenser cabinet which characterized in that: comprises a control cabinet (1) and a capacitor cabinet group; the control cabinet (1) is electrically connected with the capacitor cabinet set; the control cabinet (1) comprises a controller (101) and an isolating switch (103); the capacitor cabinet group comprises capacitor cabinets (2) arranged side by side, and each capacitor cabinet (2) comprises a grouped capacitor module; every electric capacity cabinet (2) top sets up movable cabinet top (3), movable cabinet top (3) can rotate alone and open.
2. The novel capacitor cabinet of the high-voltage reactive automatic compensation device according to claim 1, characterized in that: set up vertical mounting panel (105) in switch board (1), isolator (103) set up on vertical mounting panel (105).
3. The novel capacitor cabinet of the high-voltage reactive automatic compensation device according to claim 2, characterized in that: a handle (102) and a visible window (104) are arranged on a cabinet door of the control cabinet (1).
4. The novel capacitor cabinet of the high-voltage reactive automatic compensation device according to claim 1, characterized in that: a control protection terminal (201) is installed on a cabinet door of the capacitor cabinet (2); the capacitor box is characterized in that three layers of mounting plates are arranged inside the capacitor box (2) from top to bottom, insulators (202) are arranged on the top layer mounting plate, a spraying progressive type fuse (203), a current transformer (204) and a vacuum contactor (205) are arranged on the middle layer mounting plate, a discharge coil (206) is arranged on the lower layer mounting plate, and a reactor (207) and a capacitor (208) are arranged on a bottom plate of the capacitor box (2).
5. The novel capacitor cabinet of the high-voltage reactive automatic compensation device according to claim 4, characterized in that: the control protection terminal (201) is connected with the vacuum contactor (205) through a control cable, and the control protection terminal (201) is connected with the discharge coil (206) and the current transformer (204) through a sampling cable.
6. The novel capacitor cabinet for the high-voltage reactive automatic compensation device according to claim 5, wherein: the movable cabinet top (3) comprises a top plate (301), one end of the top plate (301) is rotatably connected to the top of the capacitor cabinet through a rotating shaft (302), and the other end of the top plate (301) is locked through a fastener (303).
7. The novel capacitor cabinet for the high-voltage reactive automatic compensation device according to claim 6, wherein: the fastener (303) is a wing nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123310584.7U CN216598529U (en) | 2021-12-27 | 2021-12-27 | Novel high-voltage reactive automatic compensation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123310584.7U CN216598529U (en) | 2021-12-27 | 2021-12-27 | Novel high-voltage reactive automatic compensation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216598529U true CN216598529U (en) | 2022-05-24 |
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ID=81617415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123310584.7U Active CN216598529U (en) | 2021-12-27 | 2021-12-27 | Novel high-voltage reactive automatic compensation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216598529U (en) |
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2021
- 2021-12-27 CN CN202123310584.7U patent/CN216598529U/en active Active
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