CN208622302U - Three-phase transformer is used in teaching - Google Patents
Three-phase transformer is used in teaching Download PDFInfo
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- CN208622302U CN208622302U CN201820359069.7U CN201820359069U CN208622302U CN 208622302 U CN208622302 U CN 208622302U CN 201820359069 U CN201820359069 U CN 201820359069U CN 208622302 U CN208622302 U CN 208622302U
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Abstract
A kind of teaching three-phase transformer, pair of heat sinks chamber door are rotatably installed in fuel tank front and back end, and high voltage fault case, low voltage failure case are rotatably installed in fuel tank or so end respectively；The every phase winding structure of high pressure, low pressure winding is identical, and high-pressure series one end winding L2A in high-voltage winding A connect with high pressure main winding L1A, the other end and the L3A connection of high voltage adjusting winding；High-voltage winding A is connect by switch with resistance RA, and one end, middle part and the other end of high voltage adjusting winding three-phase connect into common point S1 by three triple-pole switches；Low pressure one end main winding L4a in low pressure winding a is connect with the one end low voltage series winding L5a, and low pressure winding a is connect by switch with resistance Ra, and low voltage series winding three-phase is connected as common point S2, and common point S1 is connect by switch with common point S2.A kind of this teaching three-phase transformer, it is convenient to transformer device structure observation to be opened by chamber door, realizes the simulation to the various failures of transformer using switch opening and closing, easy to operate, facilitates teaching.
Description
Technical field
The utility model relates to field transformers, and in particular to three-phase transformer is used in a kind of teaching.
Background technique
Transformer is the device for changing alternating voltage using electromagnetic induction principle, more next with the development of power technology
More technical staff is required to get started from transformer and demonstrate to practical operation.
The practical operation needs of transformer are very strong technical, and for the safety for ensureing student, each school, training organization are past
Toward each failure occurred in analogue transformer real work by teaching with transformer, and trainee not only passes through reality
Operation can more be distinctly understood that the operating condition and working principle of transformer, and safer；Existing teaching transformer
It is often improved based on traditional transformer, fuel tank can not open or open angle limitation, it has not been convenient to trainee
Inside transformer structure and operating condition from multiple angles, in addition, due to the difference of transformer working environment, it is easy to go out
Existing transformer fault diversity, conventional teaching transformer can not meet simultaneously high pressure over the ground, low pressure over the ground, high pressure to low pressure, around
The simulation of the various faults such as short circuit is enclosed, form is more single, different failures simulated often through multiple teaching transformers,
Waste of resource.
Utility model content
The utility model provides a kind of teaching three-phase transformer, and the opening by fuel tank all around chamber door is convenient to change
The observation of depressor internal structure, and the simulation to the various malfunctions of Transformer is realized by on-off switch, it is easy to operate,
Keep trainee easy-to-understand, facilitates teaching.
To achieve the above object, this teaching three-phase transformer includes fuel tank, low voltage failure case, high voltage fault case, heat dissipation
Device chamber door and iron core；The iron core is placed in fuel tank and winding coil windings, and the fuel tank upper end setting case lid, bottom end are set
Set universal wheel, high-tension porcelain insulator, low voltage porcelain bottle and oil level indicator be set on case lid, the coil windings be divided into high-voltage winding I and and its
Corresponding low pressure winding II；
Pair of heat sinks chamber door is rotatably installed in fuel tank front and back end, and high voltage fault case one end is rotatably installed in a fuel tank left side
End and the high pressure chamber door of rotation setting above, low voltage failure case one end are rotatably installed in fuel tank right end and rotation setting above
Low pressure chamber door；
High-voltage winding I is made of high-voltage winding A, B, C three-phase windings and every phase winding structure is identical, and low pressure winding II is by low
It presses winding a, b, c three-phase windings composition and every phase winding structure is identical, the high-voltage winding A includes high pressure main winding L1A, high pressure
Connect winding L2A and high pressure tap-changing windings L3A, described one end high-pressure series winding L2A connect with the one end high pressure main winding L1A,
The other end is connect with the one end high voltage adjusting winding L3A；
Described high-voltage winding A, B, C pass through switch 4k, 5k, 6k respectively and resistance RA, RB, RC are connected, the resistance RA,
Paralleling switch 1k, 2k, 3k are distinguished in the both ends RB, RC, and high voltage adjusting winding L3A, L3B, L3C are connect with L2A, L2B, L2C respectively
That one end connect with the one end triple-pole switch 16k, the connection of middle part and the one end triple-pole switch 17k, the other end and the one end triple-pole switch 18k
Connection, the other end of described triple-pole switch 16k, 17k, 18k are connected as common point S1；
The low pressure winding a includes low pressure main winding L4a and low voltage series winding L5a, low pressure main winding L4a, L4b, L4c
One end connect with one end of low voltage series winding L5a, L5b, L5c, the other end pass through respectively switch 22k, 23k, 24k and electricity
It hinders Ra, Rb, Rc to connect, the both ends described resistance Ra, Rb, Rc difference paralleling switch 19k, 20k, 21k, low voltage series winding L5a,
The other end of L5b, L5c are connected as common point S2；
The common point S2 is connect with neutral conductor L6, and the common point S1 is connect by switch 34k with common point S2；It is described
Switch 1k~6k, 16k~18k are arranged in high voltage fault case, and the 19k~24k is arranged in low voltage failure case.
Further, the common point S1 is connect by switch 35k with common point S3, common point S2 pass through switch 36k and
Common point S3 connection, the common point S3 ground connection；The iron core 4 is connect with earthing switch 37k.
Further, one end of described high-pressure series winding L2A, L2B, L2C and the other end difference paralleling switch 9k, 12k,
Between 15k, middle part and the other end difference paralleling switch 8k, 11k, 14k, middle part and the other end with the other end respectively 7k in parallel,
10k, 13k, switch 7k~15k are arranged in high voltage fault case；One end of described low voltage series winding L5a, L5b, L5c with it is another
End difference parallel connection 27k, 30k, 33k, middle part 26k, 29k, 32k in parallel with the other end, divide between middle part and the other end with the other end
Other paralleling switch 25k, 28k, 31k, switch 25k~33k are arranged in low voltage failure case.
Further, the low pressure main winding L4a includes 2~24 groups of windings, the corresponding series connection 2~24 of 2~24 groups of windings
It is in parallel after switch I, it is connect after in parallel with resistance Ra, the low pressure main winding L4b includes 2~24 groups of windings, 2~24 groups of windings pair
Should connect in parallel after 2~24 switches II, connect after in parallel with resistance Rb, the low pressure main winding L4c including 2~24 groups around
Group, 2~24 groups of windings correspond to parallel connection after 2~24 switches III of series connection, connect after in parallel with resistance Rc.
Further, high-tension resistive display instrument group, institute are set between resistance RA, RB, RC input terminal and common point S1
It states high-tension resistive display instrument group to be arranged in high voltage fault case, be arranged between resistance Ra, Rb, Rc output end and common point S2
Low resistance display instrument group, the low resistance display instrument group are arranged in low voltage failure case, described high-voltage winding A, B, C and
No-load voltage ratio display instrument I, no-load voltage ratio display instrument II and no-load voltage ratio display instrument III are respectively set between low pressure winding a, b, c, the no-load voltage ratio is shown
Instrument I, no-load voltage ratio display instrument II and no-load voltage ratio display instrument III are installed in low voltage failure case.
Further, described resistance RA, RB, RC are the 10%~20% of every phase winding resistance, described resistance Ra, Rb, Rc
It is the 10%~20% of every phase winding resistance.
Further, universal wheel is arranged in the tank bottoms.
Compared with prior art, this teaching is with three-phase transformer since low voltage failure case and high voltage fault case are rotatablely installed
In fuel tank two sides, pair of heat sinks chamber door is rotatably installed in fuel tank front and back end, therefore by opening low voltage failure case, high voltage fault
Case and radiator chamber door can directly observe inside transformer construction and structure, facilitate teaching；Due to resistance RA, RB, RC and resistance
Ra, Rb, Rc distinguish paralleling switch 1k~3k, 19k~21k, high-voltage winding L1A, L1B, L1C and low pressure winding L4a, L4b, L4c
Connect by switch 4k~6k and 22k~24k with resistance RA, RB, RC and Ra, Rb, Rc, thus by disconnect 1k~3k, 19k~
21k effectively simulates a certain phase connector of high-low pressure or termination contact bad error, by disconnecting 4k~6k and 22k~24k, effectively
Simulate a certain phase winding of high-low pressure or part winding off state；Since common point S1 is connect by switch 35k with common point S3,
Common point S2 is connect by switch 36k with common point S3, and common point S3 ground connection, iron core 4 is connect with earthing switch 37k, therefore logical
Cross the disconnection of switch 34k, 35k, 36k, closure, switch 37k, realize high pressure to low pressure, high pressure over the ground, low pressure insulation against ground hits
The simulation invalid with iron core grounding is worn, the multi-functional of teaching transformer is increased, is suitble to the simulation to different faults state；Due to setting
High and low pressure resistance display instrument group and no-load voltage ratio display instrument I, no-load voltage ratio display instrument II, no-load voltage ratio display instrument III are set, therefore when respective switch is closed
When closing or disconnecting each failure of analogue transformer, high-low pressure winding D.C. resistance, change can be effectively reflected by high and low pressure failure case
The situation of change of ratio, so that teaching is more vivid, it is easy-to-understand；Due to distinguishing at the three of high-pressure series winding L2A, L2B, L2C
Paralleling switch 7k~9k, 10k~12k and 13k~15k, thus by closure 7k~15k one of them when, change high-low pressure string
Join coil sections short-circuit condition in umber of turn simulated high-pressure winding and low pressure winding；A kind of this teaching three-phase transformer, leads to
The opening for crossing fuel tank all around chamber door is convenient to inside transformer structure observation, and is realized by on-off switch to transformer fortune
The simulation of various malfunctions, easy to operate in row, so that trainer is easy-to-understand, facilitates teaching.
Detailed description of the invention
Fig. 1 is the front view of the utility model；
Fig. 2 is that each chamber door of the utility model opens top view；
Fig. 3 is the iron core schematic diagram of the utility model；
Fig. 4 is the analog circuit figure of the utility model.
In figure: 1, fuel tank, 11, case lid, 12, low voltage porcelain bottle, 13, high-tension porcelain insulator, 14, oil level indicator, 15, universal wheel, 21,
Low voltage failure case, 22, low pressure chamber door, 31, high voltage fault case, 32, high pressure chamber door, 4, iron core, 5, radiator chamber door, I, high voltage winding
Group, II, low pressure winding.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
As shown in Figure 1 to Figure 3, this teaching three-phase transformer include fuel tank 1, low voltage failure case 21, high voltage fault case 31,
Radiator chamber door 5 and iron core 4；The iron core 4 is placed in fuel tank 1 and winding coil windings, and case is arranged in 1 upper end of fuel tank
Universal wheel 15 is arranged in lid 11, bottom end, and high-tension porcelain insulator 13, low voltage porcelain bottle 12 and oil level indicator 14, pair of heat sinks is arranged on case lid 11
Chamber door 5 is rotatably installed in 1 front and back end of fuel tank by a pair of of hinge, and it is left that described 31 one end of high voltage fault case is rotatably installed in fuel tank 1
End and the high pressure chamber door 32 of rotation setting above, described 21 one end of low voltage failure case are rotatably installed in 1 right end of fuel tank and turn above
Dynamic setting low pressure chamber door 22；
As shown in Figure 3, Figure 4, the coil windings are divided into high-voltage winding I and corresponding low pressure winding II, high voltage winding
Group I is made of high-voltage winding A, B, C three-phase windings and every phase winding structure is identical, and low pressure winding II is by low pressure winding a, b, c tri-
Phase winding forms and every phase winding structure is identical, and the high-voltage winding I includes high pressure main winding L1A, L1B, L1C, high-pressure series
Winding L2A, L2B, L2C and high pressure tap-changing windings L3A, L3B, L3C, high pressure one end main winding L1A, L1B, L1C by switch 4k,
5k, 6k and resistance RA, RB, RC connection, the other end and high-pressure series one end winding L2A, L2B, L2C connect, the high voltage adjusting
Winding L3A, L3B, L3C and high-pressure series winding L2A, L2B, L2C other end connect, and the both ends described resistance RA, RB, RC are corresponding
It is connected in parallel switch 1k, 2k, 3k, one end of described high pressure tap-changing windings L3A, L3B, L3C are connected as by triple-pole switch 16k
The gear of pressure regulation one, middle part are connected as pressure regulation second gear, the other end by triple-pole switch 17k and are connected as pressure regulation three by triple-pole switch 18k
Gear, triple-pole switch 16k, 17k, 18k other end are connected as common point S1, form star-like connection, pass through the gear of pressure regulation one, second gear
Pressure regulation is carried out with three gears.
The low pressure winding II includes low pressure main winding L4a, L4b, L4c and low voltage series winding L5a, L5b, L5c；Low pressure
The one end main winding L4a, L4b, L4c connected by switch 22k, 23k, 24k and resistance Ra, Rb, Rc, the other end and low voltage series around
The connection of group one end L5a, L5b, L5c, switch 19k, 20k, 21k that the both ends described resistance Ra, Rb, Rc are connected in parallel；It is described low
Pressure series connection winding L5a, L5b, L5c other end is connected as common point S2, i.e. low pressure winding II forms star-like connection；
Common point S2 is connect with neutral conductor L6, and the common point S1 is connect by switch 34k with common point S2；The switch
1k~6k, 16k~18k are arranged in high voltage fault case 31, and the 19k~24k is arranged in low voltage failure case 21.
In order to increase the function of teaching transformer, realize high pressure to low pressure, high pressure over the ground, low pressure insulation against ground breakdown and iron
Core is grounded invalid simulation, and further, the common point S1 is connect by switch 35k with common point S3, and common point S2 passes through
Switch 36k is connect with common point S3, the common point S3 ground connection；The iron core 4 is connect with earthing switch 37k；Therefore when switch
When 34k is closed, high-voltage winding I is connected with low pressure winding II, realizes simulation of the high pressure to puncturing between low pressure；When switch 35k is closed
When conjunction, the common point S1 of high-voltage winding I is connected to S3, since S3 is grounded, realizes the simulation that high pressure punctures over the ground；Work as switch
When 36k is closed, the common point S2 of low pressure winding II is connected to S3, since S3 is grounded, realizes the simulation that low pressure punctures over the ground；
When switch 37k is disconnected, the ground connection of iron core 4 is disconnected at this time, realizes that iron core 4 is grounded invalid simulation, while it is exhausted over the ground to detect iron core 4
Edge electronics and multipoint earthing situation.
In order to realize the more complicated emulation mode of winding, further, described high-pressure series winding L2A, L2B, L2C's
One end and the other end difference paralleling switch 9k, 12k, 15k, middle part and the other end difference paralleling switch 8k, 11k, 14k, middle part and
7k, 10k, 13k in parallel, switch 7k~15k are arranged in high voltage fault case 31 respectively with the other end between the other end；The low pressure
Connect winding L5a, L5b, L5c one end and the other end distinguish 27k, 30k in parallel, 33k, middle part 26k, 29k in parallel with the other end,
32k distinguishes paralleling switch 25k, 28k, 31k with the other end between middle part and the other end, switch 25k~33k setting is in low pressure event
Hinder in case 21；Therefore by closure 7k~9k, 10k~12k, 13k~15k one of them when, change high-pressure series umber of turn
Coil sections short-circuit condition in simulated high-pressure winding I, by closure 25k~27k, 28k~30k, 31k~33 one of them when,
Change coil sections short-circuit condition in low voltage series umber of turn simulation low pressure winding II.
To realize the simulation to II interior section winding off state of low pressure winding, further, the low pressure main winding
L4a includes 2~24 groups of windings, and parallel connection after 2~24 groups of winding 2~24 switches I of corresponding series connection is connect after in parallel with resistance Ra,
The low pressure main winding L4b includes 2~24 groups of windings, in parallel, parallel connection after 2~24 groups of winding 2~24 switches II of corresponding series connection
It is connect afterwards with resistance Rb, the low pressure main winding L4c includes 2~24 groups of windings, and the corresponding series connection 2~24 of 2~24 groups of windings is opened
It is in parallel after closing III, it is connect after in parallel with resistance Rc；When original state, 2~24 switches I, switch II and switch III are in
Closed state, when disconnecting one of them or more, corresponding winding is disconnected, therefore is realized to II interior section of low pressure winding
The simulation of winding off state.
It is more visualized to impart knowledge to students, trainer is facilitated to understand, further, the input terminal of described resistance RA, RB, RC
High-tension resistive display instrument group is set between common point S1, the high-tension resistive display instrument group is arranged in high voltage fault case 31,
Low resistance display instrument group, the low resistance display instrument are set between the output end and common point S2 of described resistance Ra, Rb, Rc
Group is arranged in low voltage failure case 21, and no-load voltage ratio display instrument is respectively set between described high-voltage winding A, B, C and low pressure winding a, b, c
I, no-load voltage ratio display instrument II and no-load voltage ratio display instrument III, the no-load voltage ratio display instrument I, no-load voltage ratio display instrument II and no-load voltage ratio display instrument III are respectively mounted
In low voltage failure case 21；Therefore aobvious by high-tension resistive when each failure of respective switch closing or opening analogue transformer
Show that instrument group, low resistance display instrument group can reflect high-voltage winding I, the resistance variations situation of low pressure winding II respectively, and passes through change
Than the Turn Ratio Changing situation between display instrument I, no-load voltage ratio display instrument II and each phase winding of the effective reflection transformer of no-load voltage ratio display instrument III, make
It is more vivid to impart knowledge to students, easy-to-understand.
Further, described resistance RA, RB, RC are the 10%~20% of every phase winding resistance, described resistance Ra, Rb, Rc
It is the 10%~20% of every phase winding resistance.
For convenience of movement, further, universal wheel 15 is arranged in 1 bottom of fuel tank.
This teaching when in use, passes through opening in closed low failure case 21 and high voltage fault case 31 with three-phase transformer
It closes, realizes and the various situations of transformer are simulated, three-phase transformer first is in original state, i.e. 1~6k of switch, at 19k~24k
In closed state, switch 37k is in closed state, adjusts closure triple-pole switch 16k or 17k or 18k further according to virtual voltage, real
The connection of zero winding, half winding and full winding of existing high pressure tap-changing windings, is run by tap and realizes voltage regulation function；Work as three-phase electricity
When flowing into high-voltage winding A, B, C input terminal by resistance RA, RB, RC, low pressure winding a, b, c are as corresponding output end, induction
Three-phase electricity is flowed out from resistance Ra, Rb, Rc, when any one switch of disconnection switch 1k~3k, 19~21k, corresponding resistance
RA, RB, RC and resistance Ra, Rb, Rc access winding, realize the simulation of a certain phase connector or termination contact bad error at this time；When
Disconnect switch 4k~6k wherein one when, disconnect inside high-voltage winding I, simulation of the realization to I internal break state of high-voltage winding；
It when disconnecting switch 22k~24k wherein one, disconnects, is realized to II internal break state of low pressure winding inside low pressure winding II
Simulation.
Since low voltage failure case 21 and high voltage fault case 31 are rotatably installed in 1 two sides of fuel tank, a pair of heat dissipation by hinge
Device chamber door 5 is rotatably installed in 1 front and back end of fuel tank by hinge, therefore by opening low voltage failure case 21, high voltage fault case 31
Inside transformer construction and structure are directly observed with radiator chamber door 5, facilitate teaching.
Claims (7)
1. a kind of teaching three-phase transformer, including fuel tank (1), radiator chamber door (5) and iron core (4)；The iron core (4) is placed
The interior and winding coil windings in fuel tank (1), which is characterized in that further include low voltage failure case (21), high voltage fault case (31), institute
Fuel tank (1) upper end setting case lid (11) is stated, high-tension porcelain insulator (13), low voltage porcelain bottle (12) and oil level indicator are set on case lid (11)
(14), the coil windings are divided into high-voltage winding I and corresponding low pressure winding II,
Pair of heat sinks chamber door (5) is rotatably installed in fuel tank (1) front and back end, and described high voltage fault case (31) one end is rotatably installed in
Fuel tank (1) left end and above rotation setting high pressure chamber door (32), described low voltage failure case (21) one end is rotatably installed in fuel tank
(1) right end and above rotation setting low pressure chamber door (22)；
High-voltage winding I is made of high-voltage winding A, B, C winding and every phase winding structure is identical, low pressure winding II by low pressure winding a,
B, c winding forms and every phase winding structure is identical, and the high-voltage winding A includes high pressure main winding L1A, high-pressure series winding L2A
With high pressure tap-changing windings L3A, described one end high-pressure series winding L2A connect with the one end high pressure main winding L1A, the other end and high pressure
Adjust the connection of the one end winding L3A；
Described high-voltage winding A, B, C pass through switch 4k, 5k, 6k respectively and resistance RA, RB, RC are connected, described resistance RA, RB, RC
Distinguish paralleling switch 1k, 2k, 3k, that one end that high voltage adjusting winding L3A, L3B, L3C are connect with L2A, L2B, L2C respectively in both ends
Connect with the one end triple-pole switch 16k, the connection of middle part and the one end triple-pole switch 17k, the other end and the one end triple-pole switch 18k connect,
The other end of described triple-pole switch 16k, 17k, 18k are connected as common point S1；
The low pressure winding a includes low pressure main winding L4a and low voltage series winding L5a, and the one of low pressure main winding L4a, L4b, L4c
End is connect with one end of low voltage series winding L5a, L5b, L5c, the other end pass through respectively switch 22k, 23k, 24k and resistance Ra,
Paralleling switch 19k, 20k, 21k, low voltage series winding L5a, L5b, L5c are distinguished in Rb, Rc connection, the both ends described resistance Ra, Rb, Rc
The other end be connected as common point S2；
The common point S2 is connect with neutral conductor L6, and the common point S1 is connect by switch 34k with common point S2；The switch
1k~6k, 16k~18k setting are in high voltage fault case (31), and 19k~24k setting is in low voltage failure case (21).
2. teaching three-phase transformer according to claim 1, which is characterized in that the common point S1 passes through switch 35k
It is connect with common point S3, common point S2 is connect by switch 36k with common point S3, the common point S3 ground connection；The iron core 4 with
Earthing switch 37k connection.
3. teaching three-phase transformer according to claim 2, which is characterized in that the high-pressure series winding L2A, L2B,
One end of L2C and other end difference paralleling switch 9k, 12k, 15k, middle part and other end difference paralleling switch 8k, 11k, 14k, in
7k, 10k, 13k in parallel, switch 7k~15k setting are interior in high voltage fault case (31) respectively with the other end between portion and the other end；Institute
One end 27k, 30k in parallel with other end difference, 33k, middle part for stating low voltage series winding L5a, L5b, L5c are in parallel with the other end
26k, 29k, 32k distinguish paralleling switch 25k, 28k, 31k, switch 25k~33k setting with the other end between middle part and the other end
In low voltage failure case (21).
4. it is according to claim 3 teaching use three-phase transformer, which is characterized in that the low pressure main winding L4a include 2~
24 groups of windings, 2~24 groups of windings correspond to parallel connection after 2~24 switches I of series connection, connect after in parallel with resistance Ra, the low pressure master
Winding L4b includes 2~24 groups of windings, in parallel after 2~24 groups of windings, 2~24 switches II of corresponding series connection, after parallel connection with resistance Rb
Connection, the low pressure main winding L4c include 2~24 groups of windings, and 2~24 groups of windings correspond to parallel connection after 2~24 switches III of series connection,
It is connect after parallel connection with resistance Rc.
5. it is according to claim 4 teaching use three-phase transformer, which is characterized in that resistance RA, RB, RC input terminal and
High-tension resistive display instrument group is set between common point S1, the high-tension resistive display instrument group setting is interior in high voltage fault case (31),
Low resistance display instrument group, the low resistance display instrument group are set between resistance Ra, Rb, Rc output end and common point S2
No-load voltage ratio display instrument is respectively set between described high-voltage winding A, B, C and low pressure winding a, b, c in low voltage failure case (21) in setting
I, no-load voltage ratio display instrument II and no-load voltage ratio display instrument III, the no-load voltage ratio display instrument I, no-load voltage ratio display instrument II and no-load voltage ratio display instrument III are respectively mounted
In low voltage failure case (21).
6. according to claim 1 to teaching three-phase transformer described in 5 any one, which is characterized in that the resistance RA,
RB, RC are the 10%~20% of every phase winding resistance, and described resistance Ra, Rb, Rc are the 10%~20% of every phase winding resistance.
7. teaching three-phase transformer according to claim 5, which is characterized in that fuel tank (1) the bottom setting is universal
It takes turns (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820359069.7U CN208622302U (en) | 2018-03-15 | 2018-03-15 | Three-phase transformer is used in teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820359069.7U CN208622302U (en) | 2018-03-15 | 2018-03-15 | Three-phase transformer is used in teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208622302U true CN208622302U (en) | 2019-03-19 |
Family
ID=65694423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820359069.7U Active CN208622302U (en) | 2018-03-15 | 2018-03-15 | Three-phase transformer is used in teaching |
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| Country | Link |
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| CN (1) | CN208622302U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110288883A (en) * | 2019-05-10 | 2019-09-27 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | A kind of converter power transformer fault simulation platform and method |
-
2018
- 2018-03-15 CN CN201820359069.7U patent/CN208622302U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110288883A (en) * | 2019-05-10 | 2019-09-27 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | A kind of converter power transformer fault simulation platform and method |
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