CN108470650A - A kind of power grid intelligent voltage regulator loaded tap-off mechanical switch - Google Patents
A kind of power grid intelligent voltage regulator loaded tap-off mechanical switch Download PDFInfo
- Publication number
- CN108470650A CN108470650A CN201810177492.XA CN201810177492A CN108470650A CN 108470650 A CN108470650 A CN 108470650A CN 201810177492 A CN201810177492 A CN 201810177492A CN 108470650 A CN108470650 A CN 108470650A
- Authority
- CN
- China
- Prior art keywords
- core
- coil
- shell
- power grid
- voltage regulator
- 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.)
- Granted
Links
- 239000011261 inert gas Substances 0.000 claims abstract description 6
- 238000009434 installation Methods 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims 1
- 230000009466 transformation Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/0005—Tap change devices
- H01H9/0011—Voltage selector switches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/0005—Tap change devices
- H01H9/0027—Operating mechanisms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
Landscapes
- Electromagnets (AREA)
Abstract
The invention discloses a kind of power grid intelligent voltage regulator loaded tap-off mechanical switch, including shell, the shell is rectangle structure, and supporting plate is arranged in hull outside bottom, and electrical wire interface is set above the supporting plate of shell, core one and core two is fixedly mounted by insulating support in the enclosure interior, the core one and core two are ellipsoidal structure, and level-one coil is installed in cooperation successively from left to right outside the side wall of core one and core two, secondary coil, three-level coil and level Four coil, three polished rods are arranged in the core one and two centre position of core, this power grid intelligent voltage regulator uses loaded tap-off mechanical switch to be inputted as power using electromagnet, heavy-current control is carried out using light current, enclosure interior fills inert gas simultaneously, arcing when contact being avoided to be opened and closed, prevent equipment on fire.
Description
Technical field
The present invention relates to technical field of electric equipment, specially a kind of power grid intelligent voltage regulator is opened with loaded tap-off machinery
It closes.
Background technology
Power grid intelligent pressure regulating device (abbreviation pressure regulator) is used in grid power transmission circuit, in live load i.e. not interrupt load
Automated contact transformation is carried out in the case of electric current, is changed the number of turns of transformer, to adjust the output voltage of transformer, it is made to reach
To voltage required standard.But existing equipment, due to being inputted as power using motor, using for a long time can be because of machinery mill
Damage causes poor contact, easily causes the danger such as fire.
Invention content
The technical problem to be solved by the present invention is to overcome the existing defects, provides a kind of power grid intelligent voltage regulator and is carried point with having
Mechanical switch is connect, is inputted as power using electromagnet, carries out heavy-current control using light current, while enclosure interior fills indifferent gas
Body, arcing when contact being avoided to be opened and closed prevent equipment on fire, can effectively solve the problems in background technology.
To achieve the above object, the present invention provides the following technical solutions：A kind of power grid intelligent voltage regulator loaded tap-off machine
Tool switchs, including shell, and the shell is rectangle structure, and supporting plate, and the supporting plate of shell is arranged in hull outside bottom
Electrical wire interface is arranged in top, and core one and core two, one He of the core is fixedly mounted by insulating support in the enclosure interior
Core two is ellipsoidal structure, and outside the side wall of core one and core two from left to right successively cooperation installation level-one coil,
Three polished rods, the polished rod two is arranged in secondary coil, three-level coil and level Four coil, the core one and two centre position of core
End is fixedly connected with the casing by insulated leg, and uniformly fixed setting electrode contacts outside two polished rods of top, and described two
The both ends of grade coil are connect with the electrode contacts on two polished rod surfaces respectively, and cooperation installation wraping plate outside the polished rod of bottom,
Contact is arranged in the wraping plate upper end, and the contact of wraping plate upper end is connect by conducting wire with three-level coil, the wraping plate lower end setting
Permanent magnet, and electromagnet, the level Four coil upper end setting is fixedly installed in the corresponding position of inner walls lower surface and permanent magnet
Brush, through-hole is arranged in the surface of the electric brush, and the through-hole internal engagement of brush installs metallic rod, and the metallic rod both ends pass through exhausted
Edge holder is fixedly mounted with shell, and collets are fixedly installed in the brush side, and the collets pass through electric telescopic rod and shell
Body connects, and the both ends of the level-one coil are connected by the port of the input line of conducting wire and electrical wire interface respectively, the level Four line
One end of circle and the output end of brush are connected by the output line port of conducting wire and electrical wire interface, the output line of the electrical wire interface
Parallel connection accesses voltage sensor at port, and lid is arranged at the shell upper end opening, and microcontroller, institute is arranged in the lid portion inside
The output end for stating voltage sensor is electrically connected with the input terminal of microcontroller, the input terminal and list of the electromagnet and electric telescopic rod
The output end of piece machine is electrically connected, and the input terminal of the microcontroller is electrically connected with the output end of external power supply.
As a preferred technical solution of the present invention, the core one and core two are all made of steel plate and stack, and
Electro-insulating rubber is wrapped up in core one and two outside of core.
As a preferred technical solution of the present invention, the level-one coil, secondary coil and three-level coil are enameled wire,
The level Four coil is exposed metal wire.
As a preferred technical solution of the present invention, the secondary coil includes four small coils, and four small coils
Independently of each other.
As a preferred technical solution of the present invention, the lid portion inside is hollow structure, and microcontroller is fixedly mounted
In the inside of lid, and heat emission hole is arranged in the surface of lid.
As a preferred technical solution of the present invention, indicator light is set above the electrical wire interface, the indicator light
Input terminal is electrically connected with the output end of microcontroller.
As a preferred technical solution of the present invention, Warning Mark is arranged in the surface of shell of the electrical wire interface upper end,
It is downward arrow Warning Mark, the output line port top of the electrical wire interface above the input line port of the electrical wire interface
For upward arrow Warning Mark.
As a preferred technical solution of the present invention, annular groove is arranged in the lid side, and in the annular groove of lid
Cooperation installation sealing ring.
As a preferred technical solution of the present invention, inflating port is arranged in the shell side, and enclosure interior filling is lazy
Property gas.
As a preferred technical solution of the present invention, the wraping plate is insulation board, and sleeve is arranged among wraping plate, described
The sleeve of wraping plate is installed with polished rod cooperation.
Compared with prior art, the beneficial effects of the invention are as follows：This power grid intelligent voltage regulator loaded tap-off mechanical switch
Transformation is realized using four mutually discrete coils are arranged inside housings, while secondary coil uses fabricated structure, leads to
The coil combination using different number is crossed, realizes the adjusting of voltage, and entire adjustment process realizes energized state without power-off
Under voltage adjust.
The level Four coil of this power grid intelligent voltage regulator loaded tap-off mechanical switch uses exposed wire coil, and four
The fine tuning for realizing voltage at grade coil using moveable brush makes up the defect that secondary coil has grade to adjust, and ensures output electricity
The stability of pressure.
This power grid intelligent voltage regulator uses the opening and closing of magnet control contact with loaded tap-off mechanical switch, avoids mechanical mill
Damage, while heavy-current control is carried out using light current, it helps to ensure that safe to use.
This power grid intelligent voltage regulator fills inert gas inside housings with loaded tap-off mechanical switch, utilizes inert gas
Stability, fire caused by arcing during effectively avoiding contact from being opened and closed.
Description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is schematic internal view of the present invention；
Fig. 3 is two assembling schematic diagram of core one of the present invention and core；
Fig. 4 is sectional view of the present invention.
In figure：1 shell, 2 inflating ports, 3 electrical wire interfaces, 4 indicator lights, 5 arrow Warning Marks, 6 lids, 7 heat emission holes, 8 cores
Body one, 9 cores two, 10 level-one coils, 11 secondary coils, 12 three-level coils, 13 level Four coils, 14 brushes, 15 metallic rods, 16 electricity
Dynamic telescopic rod, 17 voltage sensors, 18 electromagnet, 19 permanent magnets, 20 wraping plates, 21 polished rods, 22 electrode contacts, 23 baffles, 24 lists
Piece machine, 25 sealing rings.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
- 4 are please referred to Fig.1, the present invention provides a kind of technical solution：A kind of power grid intelligent voltage regulator is opened with loaded tap-off machinery
It closes, including shell 1, shell 1 is rectangle structure, and supporting plate is arranged in 1 exterior bottom of shell, and above the supporting plate of shell 1
Electrical wire interface 3 is set, passes through insulating support fixed installation core 1 and core 29, core 1 and core 29 inside shell 1
It is ellipsoidal structure, and level-one coil 10, two is installed in cooperation successively from left to right outside the side wall of core 1 and core 29
Three polished rods 21, polished rod 21 is arranged in grade coil 11, three-level coil 12 and level Four coil 13, core 1 and 29 centre position of core
Both ends are fixedly connected by insulated leg with shell 1, and electrode contacts 22 are uniformly fixedly installed in two polished rods, 21 outside of top,
The both ends of secondary coil 11 are connect with the electrode contacts 22 on two 21 surfaces of polished rod respectively, and the 21 outside cooperation of polished rod of bottom
Wraping plate 20 is installed, contact is arranged in 20 upper end of wraping plate, and the contact of 20 upper end of wraping plate is connect by conducting wire with three-level coil 12, wraping plate
Permanent magnet 19 is arranged in 20 lower ends, and electromagnet 18, level Four is fixedly installed in 1 interior lower surface of shell and the corresponding position of permanent magnet 19
Brush 14 is arranged in 13 upper end of coil, and through-hole is arranged in 14 surface of brush, and the through-hole internal engagement of brush 14 installs metallic rod 15, gold
Belong to 15 both ends of bar to be fixedly mounted by insulating support and shell 1, collets are fixedly installed in 14 side of brush, and collets pass through electronic
Telescopic rod 16 is connect with shell 1, and the both ends of level-one coil 10 are connected by the port of conducting wire and the input line of electrical wire interface 3 respectively
It connects, one end of level Four coil 13 and the output end of brush 14 are connect by conducting wire with the output line port of electrical wire interface 3, and electric wire connects
Parallel connection accesses voltage sensor 17 at the output line port of mouth 3, and lid 6,6 inside setting of lid are arranged at 1 upper end opening of shell
The output end of microcontroller 24, voltage sensor 17 is electrically connected with the input terminal of microcontroller 24, electromagnet 18 and electric telescopic rod 16
Input terminal be electrically connected with the output end of microcontroller 24, the input terminal of microcontroller 24 is electrically connected with the output end of external power supply, core
Body 1 and core 29 are all made of steel plate and stack, and electro-insulating rubber is wrapped up in core 1 and 29 outside of core, prevents core
1 and core 29 charge, level-one coil 10, secondary coil 11 and three-level coil 12 be enameled wire, level Four coil 13 be it is exposed
Metal wire, secondary coil 11 includes four small coils, and four small coils are mutual indepedent, realizes that secondary coil connects the tune of the number of turns
Section, 6 inside of lid is hollow structure, and microcontroller 24 is fixedly mounted on the inside of lid 6, and the surface setting heat dissipation of lid 6
Hole 7 contributes to equipment cooling, 3 top of electrical wire interface that indicator light 4, the output end of the input terminal and microcontroller 24 of indicator light 4 is arranged
Electrical connection, safety accident caused by preventing electric wire access insecure, Warning Mark is arranged in 1 surface of shell of 3 upper end of electrical wire interface
5, the input line port top of electrical wire interface 3 is downward arrow Warning Mark 5, is above the output line port of electrical wire interface 3
Upward arrow Warning Mark 5, prevents input line and output line reversed, and annular groove, and the annular of lid 6 is arranged in 6 side of lid
Cooperation installation sealing ring 25 ensures the leakproofness inside shell 1 in slot, and inflating port 2 is arranged in 1 side of shell, and is filled out inside shell 1
Filling with inert gas avoids the phenomenon that arcing occur during the opening and closing of contact, and wraping plate 20 is insulation board, and set is arranged among wraping plate 20
Cylinder, sleeve and the cooperation of polished rod 21 of wraping plate 20 are installed, and convenient for ensureing the working effect of electromagnet 18, make equipment even running, single
The control mode that piece machine 24 controls electric telescopic rod 16, electromagnet 18, indicator light 4 and voltage sensor 17 is in the prior art
Normal method.
When in use：Tie-in line and output line are connect with the corresponding ports of electrical wire interface 3 respectively, if connection is correct, referred to
Show that lamp 4 is lighted, according to transformation demand, microcontroller 17 controls electromagnet 18 and acts, and under the collective effect of permanent magnet 19, realizes
The secondary coil 11 of corresponding number is connected with three-level coil 12, while electric telescopic rod 16 works, and drives brush 14 in level Four line
13 apparent motions are enclosed, realize the fine tuning of voltage.
The present invention is used is arranged four mutually discrete coils realization transformations inside shell 1, while secondary coil 11
The adjusting of voltage is realized, while being adopted at level Four coil 13 by using the coil combination of different number using fabricated structure
The fine tuning that voltage is realized with moveable brush 14 ensures the stability of output voltage, and controls contact using electromagnet 18
Opening and closing, avoid mechanical wear, while heavy-current control is carried out using light current, help to ensure that it is safe to use, while in shell 1
Inert gas is filled in portion, fire caused by arcing during effectively avoiding contact from being opened and closed.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (10)
1. a kind of power grid intelligent voltage regulator loaded tap-off mechanical switch, including shell (1), it is characterised in that：The shell (1)
For rectangle structure, and supporting plate is arranged in shell (1) exterior bottom, and electrical wire interface is arranged above the supporting plate of shell (1)
(3), the shell (1) is internal is fixedly mounted core one (8) and core two (9), the core one (8) and core by insulating support
Body two (9) is ellipsoidal structure, and cooperation installation one successively from left to right outside the side wall of core one (8) and core two (9)
Grade coil (10), secondary coil (11), three-level coil (12) and level Four coil (13), in the core one (8) and core two (9)
Meta position installs three polished rods (21), and polished rod (21) both ends are fixedly connected by insulated leg with shell (1), and top
The external uniformly fixed setting electrode contacts (22) of two polished rods (21), the both ends of the secondary coil (11) respectively with two polished rods
(21) electrode contacts (22) connection on surface, and cooperation installation wraping plate (20) outside the polished rod (21) of bottom, the wraping plate
(20) contact is arranged in upper end, and the contact of wraping plate (20) upper end is connect by conducting wire with three-level coil (12), the wraping plate (20)
Permanent magnet (19) is arranged in lower end, and electromagnet is fixedly installed in shell (1) interior lower surface and the corresponding position of permanent magnet (19)
(18), level Four coil (13) the upper end setting brush (14), through-hole is arranged in brush (14) surface, and brush (14) is logical
Hole internal engagement installation metallic rod (15), metallic rod (15) both ends are fixedly mounted by insulating support and shell (1), described
Collets are fixedly installed in brush (14) side, and the collets are connect by electric telescopic rod (16) with shell (1), the level-one
The both ends of coil (10) are connect by conducting wire with the port of the input line of electrical wire interface (3) respectively, the level Four coil (13)
The output end of one end and brush (14) is connect by conducting wire with the output line port of electrical wire interface (3), the electrical wire interface (3)
Parallel connection accesses voltage sensor (17) at output line port, and lid (6), the lid is arranged at shell (1) upper end opening
(6) internal setting microcontroller (24), the output end of the voltage sensor (17) are electrically connected with the input terminal of microcontroller (24), institute
The input terminal for stating electromagnet (18) and electric telescopic rod (16) is electrically connected with the output end of microcontroller (24), the microcontroller (24)
Input terminal be electrically connected with the output end of external power supply.
2. a kind of power grid intelligent voltage regulator loaded tap-off mechanical switch according to claim 1, it is characterised in that：It is described
Core one (8) and core two (9) are all made of steel plate and stack, and package insulation rubber outside core one (8) and core two (9)
Glue.
3. a kind of power grid intelligent voltage regulator loaded tap-off mechanical switch according to claim 1, it is characterised in that：It is described
Level-one coil (10), secondary coil (11) and three-level coil (12) are enameled wire, and the level Four coil (13) is exposed metal
Line.
4. a kind of power grid intelligent voltage regulator loaded tap-off mechanical switch according to claim 1, it is characterised in that：It is described
Secondary coil (11) includes four small coils, and four small coils are mutual indepedent.
5. a kind of power grid intelligent voltage regulator loaded tap-off mechanical switch according to claim 1, it is characterised in that：It is described
It is hollow structure inside lid (6), and microcontroller (24) is fixedly mounted on the inside of lid (6), and the surface setting of lid (6)
Heat emission hole (7).
6. a kind of power grid intelligent voltage regulator loaded tap-off mechanical switch according to claim 1, it is characterised in that：It is described
Setting indicator light (4), the input terminal of the indicator light (4) are electrically connected with the output end of microcontroller (24) above electrical wire interface (3).
7. a kind of power grid intelligent voltage regulator loaded tap-off mechanical switch according to claim 1, it is characterised in that：It is described
The input line port top of shell (1) surface setting Warning Mark (5) of electrical wire interface (3) upper end, the electrical wire interface (3) is
The output line port top of downward arrow Warning Mark (5), the electrical wire interface (3) is upward arrow Warning Mark (5).
8. a kind of power grid intelligent voltage regulator loaded tap-off mechanical switch according to claim 1, it is characterised in that：It is described
Annular groove, and cooperation installation sealing ring (25) in the annular groove of lid (6) is arranged in lid (6) side.
9. a kind of power grid intelligent voltage regulator loaded tap-off mechanical switch according to claim 1, it is characterised in that：It is described
Inflating port (2) is arranged in shell (1) side, and inert gas is filled inside shell (1).
10. a kind of power grid intelligent voltage regulator loaded tap-off mechanical switch according to claim 1, it is characterised in that：Institute
It is insulation board to state wraping plate (20), and sleeve is arranged among wraping plate (20), and sleeve and polished rod (21) cooperation of the wraping plate (20) are pacified
Dress.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810177492.XA CN108470650B (en) | 2018-03-05 | 2018-03-05 | A kind of power grid intelligent voltage regulator loaded tap-off mechanical switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810177492.XA CN108470650B (en) | 2018-03-05 | 2018-03-05 | A kind of power grid intelligent voltage regulator loaded tap-off mechanical switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108470650A true CN108470650A (en) | 2018-08-31 |
| CN108470650B CN108470650B (en) | 2019-08-20 |
Family
ID=63264958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810177492.XA Expired - Fee Related CN108470650B (en) | 2018-03-05 | 2018-03-05 | A kind of power grid intelligent voltage regulator loaded tap-off mechanical switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108470650B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB419283A (en) * | 1933-03-06 | 1934-11-06 | Gen Electric Co Ltd | Improvements in or relating to tap changing apparatus for electric transformers |
| CN2529363Y (en) * | 2001-12-31 | 2003-01-01 | 潘永歧 | Dry-type magnetic control regulating transformer |
| CN2618274Y (en) * | 2003-04-11 | 2004-05-26 | 郭欲平 | Transformer with V-shape leads |
| CN2785010Y (en) * | 2004-12-08 | 2006-05-31 | 张顺清 | AC voltage compensator |
| CN203607230U (en) * | 2013-09-02 | 2014-05-21 | 广州广高高压电器有限公司 | Voltage and capacitance-regulating distribution transformer |
| CN103985524A (en) * | 2014-05-30 | 2014-08-13 | 江苏容天机电科技有限公司 | Magnetic valve type controllable electric reactor |
| CN204596593U (en) * | 2015-04-30 | 2015-08-26 | 柳州索能特种变压器有限责任公司 | A kind of transformer regulating section winding construction |
| CN204650854U (en) * | 2015-05-12 | 2015-09-16 | 国家电网公司 | A kind of visual controlled three-phase load ratio bridging switch switching principle apparatus for demonstrating |
| CN105580100A (en) * | 2013-08-27 | 2016-05-11 | 赖茵豪森机械制造公司 | On-load tap changer, tap-changing transformer for voltage regulation and method for implementing tap changing in the tap-changing transformer |
| CN207165406U (en) * | 2017-09-11 | 2018-03-30 | 山东印鸿电气有限公司 | Adjustable no field switch fixed support in transformer |
-
2018
- 2018-03-05 CN CN201810177492.XA patent/CN108470650B/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB419283A (en) * | 1933-03-06 | 1934-11-06 | Gen Electric Co Ltd | Improvements in or relating to tap changing apparatus for electric transformers |
| CN2529363Y (en) * | 2001-12-31 | 2003-01-01 | 潘永歧 | Dry-type magnetic control regulating transformer |
| CN2618274Y (en) * | 2003-04-11 | 2004-05-26 | 郭欲平 | Transformer with V-shape leads |
| CN2785010Y (en) * | 2004-12-08 | 2006-05-31 | 张顺清 | AC voltage compensator |
| CN105580100A (en) * | 2013-08-27 | 2016-05-11 | 赖茵豪森机械制造公司 | On-load tap changer, tap-changing transformer for voltage regulation and method for implementing tap changing in the tap-changing transformer |
| CN203607230U (en) * | 2013-09-02 | 2014-05-21 | 广州广高高压电器有限公司 | Voltage and capacitance-regulating distribution transformer |
| CN103985524A (en) * | 2014-05-30 | 2014-08-13 | 江苏容天机电科技有限公司 | Magnetic valve type controllable electric reactor |
| CN204596593U (en) * | 2015-04-30 | 2015-08-26 | 柳州索能特种变压器有限责任公司 | A kind of transformer regulating section winding construction |
| CN204650854U (en) * | 2015-05-12 | 2015-09-16 | 国家电网公司 | A kind of visual controlled three-phase load ratio bridging switch switching principle apparatus for demonstrating |
| CN207165406U (en) * | 2017-09-11 | 2018-03-30 | 山东印鸿电气有限公司 | Adjustable no field switch fixed support in transformer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108470650B (en) | 2019-08-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105047472B (en) | A kind of monopole vacuum contactor | |
| WO2017124779A1 (en) | Novel pole-mounted circuit breaker | |
| CN204155745U (en) | A kind of open-close type current transformer | |
| CN208796916U (en) | A kind of nonpolarity ceramic seal bipolar DC contactor | |
| CN108470650B (en) | A kind of power grid intelligent voltage regulator loaded tap-off mechanical switch | |
| CN108400041A (en) | A kind of coordinated type switch | |
| CN206379309U (en) | A kind of new relay | |
| WO2019223701A1 (en) | New indoor intelligent high-voltage vacuum circuit breaker | |
| CN101710557A (en) | Plastic enclosure leakage circuit breaker with multifunctional housing | |
| CN109256300A (en) | A kind of nonpolarity ceramic seal bipolar DC contactor | |
| CN202145420U (en) | Double-fuse voltage transformer with elbow-shaped sockets | |
| CN209169539U (en) | A kind of high-voltage capacitor discharge device | |
| CN201629495U (en) | Wall-through shielded bushing of high-voltage switchgear cabinet | |
| CN204189721U (en) | High-voltage DC contactor | |
| CN105609377A (en) | Improved type contactor | |
| CN221125802U (en) | Vacuum circuit breaker on secondary fusion column | |
| CN206516575U (en) | HVDC relay arc extinguishing structure | |
| CN215417753U (en) | Medical isolation transformer | |
| CN106098489B (en) | A kind of breaker with auto-lock function | |
| CN109920692B (en) | Intelligent integrated common-box type column vacuum circuit breaker and testing method | |
| CN205645449U (en) | Small -size power transformer of peg formula | |
| CN105762006B (en) | A kind of great-current fixed sealed pole of gas-filling cabinet | |
| CN205230796U (en) | Voltage transformer | |
| CN2593348Y (en) | Bured oil-immersed high-voltage current-limiting fuse | |
| CN219553348U (en) | Explosion-proof flame-retardant power transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190726 Address after: Jiaojiang District of Taizhou city in Zhejiang province 318001 Chishan Road No. 198 Applicant after: Ding Shixuan Address before: 314419 Room 301, Building 3, Zhejiang Union Building, 28 Jingdu Road, Haining City, Jiaxing City, Zhejiang Province Applicant before: Guo Jiachuan |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210428 Address after: 226600, Nantong County, Jiangsu City, Haian province Hu Town East Village 7 groups Patentee after: Nantong Haiwang Electric Co.,Ltd. Address before: Jiaojiang District of Taizhou city in Zhejiang province 318001 Chishan Road No. 198 Patentee before: Ding Shixuan |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190820 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |