CN105336480A - One-machine 24-pulse conjugated iron core liquid immersion type rectifier transformer - Google Patents
One-machine 24-pulse conjugated iron core liquid immersion type rectifier transformer Download PDFInfo
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Abstract
The invention provides a one-machine 24-pulse conjugated iron core liquid immersion type rectifier transformer and relates to the field of transformers. The rectifier transformer comprises a transformer body and an oil tank used for immersing the transformer body. The transformer body is composed of two 12-pulse conjugated iron core liquid immersion type rectifier transformers. Each 12-pulse conjugated iron core liquid immersion type rectifier transformer comprises a conjugated iron core, six windings, a set of clamping elements used for supporting and pressing the conjugated iron core and the windings, ground feet supporting the conjugated iron core, a non-excitation voltage regulating switch, a set of high-voltage leads and two sets of low-voltage leads corresponding to the high-voltage leads. Low-voltage phase shift of +2.5 degrees, -7.5 degrees, +7.5 degrees and -22.5 degrees is achieved through one machine. A shared yoke in the conjugated iron core supplies a magnetic flux difference path, the problem about voltage difference between the same ends of valve side output windings is solved, current circulation, without passing loads, caused by the problem is reduced, and the phenomenon that the valve side output windings are locally too hot is prevented.
Description
Technical field
The invention belongs to transformer technology field, be specifically related to a kind of unit 24 pulse wave conjugation liquid immersion type rectifier transformer unshakable in one's determination.
Background technology
Along with the development of Chinese Urbanization track traffic and the enforcement of " band one tunnel " national strategy, the urban rail transit construction of big and medium-sized cities certainly will significantly increase.The power-equipment that tractive power supply system runs as urban track traffic, its security reliability directly affects the security and stability that whole City Rail Transit System runs.In tractive power supply system, main traction power supply equipment is made up of Rectification Power Factor, direct-current switch cabinet, track potential limiting device and insulation DC electric cable.Rectification Power Factor includes rectifier transformer and rectifier, Rectification Power Factor is responsible for the key link of the ac-dc conversion of whole tractive power supply system, it is the nucleus equipment of tractive power supply system, its effect is that electrical network mesohigh alternating current is exported low-voltage direct supply subway contact line through step-down rectifier, realizes DC traction; In Rectification Power Factor, the effect of rectifier transformer is voltage and current ac grid voltage, ER effect changed into needed for rectifying device, and by the conversion at phase angle, improves the operation characteristic of net side and valve side; Industrial DC power supply major part is formed rectifying installation by AC network by liquid immersion type rectifier transformer and rectifier and is obtained, and is widely used in power track traffic traction and the field such as transmission, intermediate frequency furnace.
Known, power rectifier unit operationally, inevitably produces harmonic wave, and the impact of harmonic wave on the fluctuation of urban distribution network voltage and communication signal is very large.In order to reduce harmonic influence, domestic city track traffic traction rectifier unit is developed to 24 pulse waves by 12 original pulse waves.
Recent year transformer factory develops unit 24 pulse wave liquid immersion type rectifier transformer, usually have two schemes: the first scheme by high pressure respectively phase shift+7.5 spend and-7.5 degree two 12 pulse wave liquid immersion type rectifier transformers form 24 pulse wave liquid immersion type rectifier transformers, the shortcoming of the program is that liquid immersion type rectifier transformer manufacturing cost is high, unit floor space is large, transformer loss is high.First scheme is by four groups of low pressure windings phase shift+7.5 degree respectively,-7.5 degree, the axial split formula rectifier transformer composition unit 24 pulse wave liquid immersion type rectifier transformer of+22.5 degree and-22.5 degree, the shortcoming of the program is because the low pressure number of turn is few, the shortcoming of the program is because the low pressure number of turn is few, four groups of low pressure is shifted to winding and is difficult to ensure the identical of voltage on valve side and phase shifting angle, so be difficult to ensure the voltage difference between the Same Name of Ends of valve side, therefore the very large circulation without load can be produced by four groups of low pressure and rectifier arm, cause certain winding current excessive, cause local overheating, the method of phase control can be adopted to make four groups of rectifier arm voltages equal for this reason, thus eliminate the circulation of four groups of rectifier arms, also the electric current that the method by increasing bus reactance is improved between rectifier arm distributes, but these measures all will make rectifying installation power factor decline and make added cost.
Summary of the invention
This is for solving the problems of the technologies described above, and the object of the invention is to propose a kind of unit 24 pulse wave conjugation liquid immersion type rectifier transformer unshakable in one's determination.The present invention not only meets the instructions for use of 24 pulse wave rectifiers, also improve the efficiency of energy utilization of liquid immersion type rectifier transformer simultaneously, reduce unit floor space, reduce the loss of liquid immersion type rectifier transformer, improve the reliability of product, fail safe and advance, achieve the saving of material and the reduction of energy loss to greatest extent.
The present invention adopts following technical scheme for completing above-mentioned purpose: a kind of unit 24 pulse wave conjugation liquid immersion type rectifier transformer unshakable in one's determination, comprises transformer body, for soaking the fuel tank of transformer body; Described transformer body is made up of two 12 pulse wave conjugation liquid immersion type rectifier transformers unshakable in one's determination, and every platform 12 pulse wave conjugation liquid immersion type rectifier transformer unshakable in one's determination comprises a conjugation-type iron core, six windings respectively, a set of to conjugation-type, unshakable in one's determination and winding plays the folder of support and pressuring action, lower margin, a non-excitation pressure adjustment switch and corresponding one group of high-voltage connection of playing a supporting role to conjugation-type iron core and two groups of low-voltage leads; Described conjugation-type iron core comprises three equidistant vertical core limbs, and with the horizontal type core limb that vertical core limb is perpendicular, described vertical core limb and horizontal type core limb are connected to one by fixture, form three-phase matrix pattern structure; Described winding comprises mobile winding, high pressure winding, low pressure winding, be sleeved on successively on the excircle of vertical core limb of conjugation-type iron core, and adopt outer delta connection, delta connection or star connection to connect by high and low pressure lead-in wire the line of mobile winding, high pressure winding, low pressure winding according to designing requirement; Described folder is positioned at the center of the yoke both sides, upper, middle and lower of conjugation-type iron core, and described lower margin is symmetrically distributed in the upper yoke top of conjugation-type iron core and lower yoke bottom;
Two groups of high-voltage connections of described transformer body are lifted one's head parallel connection and are jointly led to above fuel tank, are arranged on high-voltage outlet terminal, connect high pressure input terminal for user provides;
Four groups of low-voltage leads of described transformer body are lifted one's head and are led to above fuel tank respectively, be arranged on first group of low voltage outlet terminals, second group of low voltage outlet terminals, the 3rd group of low voltage outlet terminals, the 4th group of low voltage outlet terminals respectively, for user provides connection outlet terminal;
Every three windings of described transformer body form one group of winding group, and every platform unit 24 pulse wave conjugation liquid immersion type rectifier transformer unshakable in one's determination has four cover winding groups, finally realize low pressure phase shift+22.5 degree and-7.5 degree ,+7.5 degree and-22.5 degree according to connection principle;
Described conjugation-type iron core is made according to multiple trapezoidal being formed by stacking by high magnetic conduction grain orientation cold-reduced silicon sheet, upper and lower yoke is oblique 45 ° of seams entirely, it is 90 ° of directly seams that middle part shares yoke, middle part shares 0.261 times that yoke area of section is upper and lower yoke area of section, and the area of section of column is equal with upper and lower yoke area of section.
A kind of unit 24 pulse wave conjugation liquid immersion type rectifier transformer unshakable in one's determination, the first half of described vertical core limb equidistantly and Lower Half are provided with the position of suit winding
A kind of unit 24 pulse wave conjugation liquid immersion type rectifier transformer unshakable in one's determination, but described two 12 pulse wave conjugation liquid immersion type rectifier transformer unshakable in one's determination electric properties are that rated voltage is identical, the identical connecting group grade of short-circuit impedance is different.
A kind of unit 24 pulse wave conjugation liquid immersion type rectifier transformer unshakable in one's determination, the tap lead of described two groups of high pressure windings is connected to respectively on two non-excitation pressure adjustment switch wire connection dishes according to electrical principle in fuel tank, and regulates the voltage gear of high pressure winding by the lever rotation process being fixed on the non-excitation pressure adjustment switch above fuel tank.
A kind of unit 24 pulse wave conjugation liquid immersion type rectifier transformer unshakable in one's determination, described fuel tank is tub rectangle fuel tank, and its top is configured with pressure relief valve, radiator, oil conservator, respirator, temperature-detecting device, protection relay.
A kind of unit 24 pulse wave conjugation liquid immersion type rectifier transformer unshakable in one's determination, described pressure relief valve is positioned at the side above fuel tank, relative with oil conservator, when breaking down for this interiors of products, the pressure that pressure relief valve will be opened in release fuel tank, avoids fuel tank to be out of shape or blast.
A kind of unit 24 pulse wave conjugation liquid immersion type rectifier transformer unshakable in one's determination, described fuel tank outer wall is provided with the many groups gilled radiator strengthening liquid soaking transformer heat radiation.
A kind of unit 24 pulse wave conjugation liquid immersion type rectifier transformer unshakable in one's determination, the side, top of described fuel tank is configured with oil conservator, relative with pressure relief valve, and the body oil level that can in good time furnish good supplies to is not enough or oil level to expand with heat and contract with cold the change in volume of generation because of temperature action.
The beneficial effect that the present invention adopts such scheme to bring is: a kind of unit 24 pulse wave conjugation that the present invention proposes liquid immersion type rectifier transformer unshakable in one's determination, unit achieves low pressure phase shift+22.5 degree and-7.5 degree ,+7.5 degree and-22.5 degree, and share the path that yoke provides magnetic flux difference in the middle part of conjugation-type iron core, solve the voltage difference between valve side output Motor Winding Same Name of Ends, reduce the circulation without load therefore produced, prevent valve side to export the generation of winding local overheating phenomenon; The present invention not only meets the instructions for use of 24 pulse wave rectifiers, also improve the efficiency of energy utilization of liquid immersion type rectifier transformer simultaneously, reduce the loss of liquid immersion type rectifier transformer, improve the reliability of product, fail safe and advance, achieve the saving of material and the reduction of energy loss to greatest extent, to solution China power tense, set up conservation-minded society's important in inhibiting, and there is low cost of manufacture, unit floor space is little, transformer loss is low advantage.
Accompanying drawing explanation
Fig. 1 is main TV structure schematic diagram of the present invention.
Fig. 2 is the plan structure schematic diagram of Fig. 1.
Fig. 3 is transformer body structural representation of the present invention.
Fig. 4 is conjugation-type core construction schematic diagram of the present invention.
Fig. 5 is elementary diagram of the present invention.
Fig. 6 is winding distribution map of the present invention.
Fig. 7 is that middle part unshakable in one's determination of the present invention shares yoke flux vectogram.
In figure: high-voltage outlet terminal 1, pressure relief valve 2, fuel tank 3, radiator 4, oil conservator 5, non-excitation pressure adjustment switch 6, first group of low voltage outlet terminals 7, second group of low voltage outlet terminals 8, the 3rd group of low voltage outlet terminals 9, the 4th group of low voltage outlet terminals 10, conjugation-type iron core 11, folder 12, winding 13, lower margin 14.
Embodiment
Can explain patent of the present invention in more detail by the following examples, patent of the present invention is not limited to the following examples, and the object of open patent of the present invention is intended to protect all changes and improvements in the scope of the claims of the present invention;
With specific embodiment, the present invention is illustrated by reference to the accompanying drawings:
By reference to the accompanying drawings shown in 1,2,3,4,5,6, a kind of unit 24 pulse wave conjugation liquid immersion type rectifier transformer unshakable in one's determination, comprises transformer body, for soaking the fuel tank 3 of transformer body; Described transformer body is made up of two 12 pulse wave conjugation liquid immersion type rectifier transformers unshakable in one's determination, and every platform 12 pulse wave conjugation liquid immersion type rectifier transformer unshakable in one's determination comprises a conjugation-type iron core 11, six windings 13 respectively, a set ofly plays the folder 12 of support and pressuring action, lower margin 14, non-excitation pressure adjustment switch 6 of playing a supporting role to conjugation-type iron core 11 and corresponding one group of high-voltage connection and two groups of low-voltage leads to conjugation-type unshakable in one's determination 11 and winding 13; Described conjugation-type iron core 11 comprises three equidistant vertical core limbs, and with the horizontal type core limb that vertical core limb is perpendicular, described vertical core limb and horizontal type core limb are connected to one by fixture, forms three-phase matrix pattern structure; Described winding 13 comprises mobile winding, high pressure winding, low pressure winding, be sleeved on successively on the excircle of vertical core limb of conjugation-type iron core 11, and adopt outer delta connection, delta connection or star connection to connect by height lead-in wire the line of mobile winding, high pressure winding, low pressure winding according to designing requirement; Described folder 12 is positioned at the center of the yoke both sides, upper, middle and lower of conjugation-type iron core, and described lower margin 14 is symmetrically distributed in the upper yoke top of conjugation-type iron core and lower yoke bottom;
Two groups of high-voltage connections of described transformer body are lifted one's head parallel connection and are jointly led to above fuel tank 3, are arranged on high-voltage outlet terminal, connect high pressure input terminal for user provides;
Four groups of low-voltage leads of described transformer body are lifted one's head and are led to above fuel tank respectively, to be arranged on first group of low voltage outlet terminals, 7, second group of low voltage outlet terminals 8, the 3rd group of low voltage outlet terminals 9, the 4th group of low voltage outlet terminals 10 respectively, for user provides connection outlet terminal.
By reference to the accompanying drawings described in 1,2,3 and 5, but described two 12 pulse wave conjugation liquid immersion type rectifier transformer unshakable in one's determination electric properties are that rated voltage is identical, the identical connecting group grade of short-circuit impedance is different, a 12 pulse wave conjugation liquid immersion type rectifier transformer unshakable in one's determination realizes low pressure phase shift+22.5 degree and-7.5 degree, and another 12 pulse wave conjugation liquid immersion type rectifier transformer unshakable in one's determination device body realizes low pressure phase shift+7.5 degree and-22.5 degree.
By reference to the accompanying drawings described in 3 and 4, described unit 24 pulse wave conjugation liquid immersion type rectifier transformer unshakable in one's determination, described conjugation-type iron core 11 is made according to multiple trapezoidal being formed by stacking by high magnetic conduction grain orientation cold-reduced silicon sheet, upper and lower yoke is oblique 45 ° of seams entirely, and it is 90 ° of directly seams that middle part shares yoke.
By reference to the accompanying drawings described in 3 and 4, described unit 24 pulse wave conjugation liquid immersion type rectifier transformer unshakable in one's determination, described conjugation-type iron core 11 comprises: have corresponding with three-phase coil three equidistant vertical core limbs, three equidistant horizontal type core limbs and fixture, described three equidistant vertical core limbs with three equidistant horizontal type core limbs are mutually vertical is combined, unshakable in one's determination by the be connected to one conjugation-type that forms three-phase matrix pattern structure of fixture.The first half of the vertical core limb that every root is equidistant and Lower Half are provided with the position of suit winding.
By reference to the accompanying drawings described in 3 and 4, described unit 24 pulse wave conjugation liquid immersion type rectifier transformer unshakable in one's determination, the magnetic flux difference Δ φ that in the middle part of described conjugation-type iron core 11, shared yoke causes for phase difference 15 degree provides path, share 0.261 times that yoke area of section is upper and lower yoke area of section in the middle part of conjugation-type iron core 11, the area of section of column is equal with upper and lower yoke area of section.Spend and-7.5 degree, if φ 1=φ 2=φ is then in phase shift+7.5 in parallel because conjugation-type is unshakable in one's determination:
so share 0.261 times that yoke area of section is upper and lower yoke area of section in the middle part of described separate unit rectifier transformer conjugation-type iron core.
By reference to the accompanying drawings described in 3 and 4, described unit 24 pulse wave conjugation liquid immersion type rectifier transformer unshakable in one's determination, described folder 12 is the centers of the yoke both sides, upper, middle and lower being positioned at separate unit rectifier transformer conjugation-type iron core, main body is made by the section bar such as channel-section steel or band steel, then coordinate upper corresponding part Main Function to be the clamping to upper, middle and lower yoke silicon steel sheet and the support to winding 13 and compression.
By reference to the accompanying drawings described in 3 and 4, described unit 24 pulse wave conjugation liquid immersion type rectifier transformer unshakable in one's determination, described lower margin 14 is positioned at the lower yoke bottom of separate unit rectifier transformer conjugation-type iron core 11 and upper yoke top, symmetrical, Main Function is to support when whole the upright suit of device body and handstand suit.
By reference to the accompanying drawings described in 5 and 6, described unit 24 pulse wave conjugation liquid immersion type rectifier transformer unshakable in one's determination, described single winding 13 by shifting to winding, high pressure winding, low pressure winding form, distributed architecture by outside interior respectively: shift to winding, high pressure winding, low pressure winding.
By reference to the accompanying drawings described in 3,5 and 6, described unit 24 pulse wave conjugation liquid immersion type rectifier transformer unshakable in one's determination, described winding 13 is the vertical core limb centers being sleeved on conjugation-type iron core 11, and according to designing requirement by winding shift to winding, the line of high pressure winding and low pressure winding adopts lengthened triangular connection, delta connection or star connection to be connected by high and low pressure lead-in wire.
By reference to the accompanying drawings described in 3,5 and 6, described unit 24 pulse wave conjugation liquid immersion type rectifier transformer unshakable in one's determination, described every three windings 13 form one group of winding group, every platform unit 24 pulse wave conjugation liquid immersion type rectifier transformer unshakable in one's determination device body has four cover winding groups, finally realizes low pressure phase shift+22.5 degree and-7.5 degree ,+7.5 degree and-22.5 degree according to connection principle.
By reference to the accompanying drawings described in 1,2,3 and 5, described unit 24 pulse wave conjugation liquid immersion type rectifier transformer unshakable in one's determination, two groups of high-voltage connections of described device body are lifted one's head parallel connection and are jointly led to above fuel tank 3, are arranged on high-voltage outlet terminal 1, connect high pressure input terminal for user provides.
By reference to the accompanying drawings described in 1,2,3 and 5, described unit 24 pulse wave conjugation liquid immersion type rectifier transformer unshakable in one's determination, four groups of low-voltage leads of described transformer body are lifted one's head and are led to above fuel tank 3 respectively, be arranged on first group of low voltage outlet terminals, 7, second group of low voltage outlet terminals 8, the 3rd group of low voltage outlet terminals 9, the 4th group of low voltage outlet terminals 10 respectively, for user provides connection outlet terminal.First group of low voltage outlet terminals 7 phase shift+22.5 degree in figure, second group of low voltage outlet terminals 8 phase shift-7.5 degree, the 3rd group of low voltage outlet terminals 9 phase shift+7.5 degree, the 4th group of low voltage outlet terminals 10 phase shift-22.5 degree.
By reference to the accompanying drawings described in 1,2,3 and 5, described unit 24 pulse wave conjugation liquid immersion type rectifier transformer unshakable in one's determination, the tap lead of two groups of described high pressure windings is connected to respectively on two non-excitation pressure adjustment switch 6 patchboards according to electrical principle in fuel tank 3, and regulates the voltage gear of high pressure winding by the lever rotation process being fixed on the non-excitation pressure adjustment switch 6 above fuel tank 3.
By reference to the accompanying drawings described in 1 and 2; described unit 24 pulse wave conjugation liquid immersion type rectifier transformer unshakable in one's determination; described fuel tank 3 is tub rectangle fuel tank, it is configured with pressure relief valve 2, radiator 4, oil conservator 5, respirator, temperature-detecting device, protection relay.
By reference to the accompanying drawings described in 1 and 2, described unit 24 pulse wave conjugation liquid immersion type rectifier transformer unshakable in one's determination, described pressure relief valve 2 is positioned at the side above fuel tank 3, relative with oil conservator 5, when breaking down for this interiors of products, the pressure that pressure relief valve 2 will be opened in release fuel tank 3, avoids fuel tank 3 be out of shape or explode.
By reference to the accompanying drawings described in 1 and 2, described unit 24 pulse wave conjugation liquid immersion type rectifier transformer unshakable in one's determination, described fuel tank 3 outer wall is provided with the many groups gilled radiator 4 strengthening liquid soaking transformer heat radiation.
By reference to the accompanying drawings described in 1 and 2, described unit 24 pulse wave conjugation liquid immersion type rectifier transformer unshakable in one's determination, the side, top of described fuel tank 3 is configured with oil conservator 5, relative with pressure relief valve 2, the body oil level that can in good time furnish good supplies to is not enough or oil level to expand with heat and contract with cold the change in volume produced because of temperature action.
A kind of unit 24 pulse wave conjugation that the present invention proposes liquid immersion type rectifier transformer unshakable in one's determination, not only meet the instructions for use of 24 pulse wave rectifiers, also improve the efficiency of energy utilization of liquid immersion type rectifier transformer simultaneously, reduce the loss of liquid immersion type rectifier transformer, improve the reliability of product, fail safe and advance, achieve the saving of material and the reduction of energy loss to greatest extent, and there is low cost of manufacture, unit floor space is little, transformer loss is low advantage.Therefore the unit 24 pulse wave conjugation of patent of the present invention liquid immersion type rectifier transformer unshakable in one's determination is the direction of following 24 pulse wave liquid soaking transformer development.
The non-detailed portion of patent of the present invention is prior art.
Claims (7)
1. a unit 24 pulse wave conjugation liquid immersion type rectifier transformer unshakable in one's determination, comprises transformer body, for soaking the fuel tank of transformer body; It is characterized in that: described transformer body is made up of two 12 pulse wave conjugation liquid immersion type rectifier transformers unshakable in one's determination, every platform 12 pulse wave conjugation liquid immersion type rectifier transformer unshakable in one's determination comprise respectively a conjugation-type iron core, six windings, a set of to conjugation-type unshakable in one's determination and winding play support and pressuring action folder, to conjugation-type passive lower margin, a non-excitation pressure adjustment switch and corresponding one group of high-voltage connection unshakable in one's determination and two groups of low-voltage leads; Described conjugation-type iron core comprises three equidistant vertical core limbs, and with the horizontal type core limb that vertical core limb is perpendicular, described vertical core limb and horizontal type core limb are connected to one by fixture, form three-phase matrix pattern structure; Described winding comprises mobile winding, high pressure winding, low pressure winding, be sleeved on successively on the excircle of vertical core limb of conjugation-type iron core, and adopt outer delta connection, delta connection or star connection to connect by high and low pressure lead-in wire the line of mobile winding, high pressure winding, low pressure winding according to designing requirement; Described folder is positioned at the center of the yoke both sides, upper, middle and lower of conjugation-type iron core, and described lower margin is symmetrically distributed in the upper yoke top of conjugation-type iron core and lower yoke bottom;
Two groups of high-voltage connections of described transformer body are lifted one's head parallel connection and are jointly led to above fuel tank, are arranged on high-voltage outlet terminal, connect high pressure input terminal for user provides;
Four groups of low-voltage leads of described transformer body are lifted one's head and are led to above fuel tank respectively, be arranged on first group of low voltage outlet terminals, second group of low voltage outlet terminals, the 3rd group of low voltage outlet terminals, the 4th group of low voltage outlet terminals respectively, for user provides connection outlet terminal.
2. unit 24 pulse wave conjugation according to claim 1 liquid immersion type rectifier transformer unshakable in one's determination, it is characterized in that: every three windings of described transformer body form one group of winding group, every platform unit 24 pulse wave conjugation liquid immersion type rectifier transformer unshakable in one's determination has four cover winding groups, finally realizes low pressure phase shift+22.5 degree and-7.5 degree ,+7.5 degree and-22.5 degree according to connection principle.
3. unit 24 pulse wave conjugation according to claim 2 liquid immersion type rectifier transformer unshakable in one's determination, it is characterized in that: described conjugation-type iron core is made according to multiple trapezoidal being formed by stacking by high magnetic conduction grain orientation cold-reduced silicon sheet, upper and lower yoke is oblique 45 ° of seams entirely, and it is 90 ° of directly seams that middle part shares yoke.
4. unit 24 pulse wave conjugation according to claim 3 liquid immersion type rectifier transformer unshakable in one's determination, it is characterized in that: share 0.261 times that yoke area of section is upper and lower yoke area of section in the middle part of described conjugation-type iron core, the area of section of column is equal with upper and lower yoke area of section.
5. the liquid immersion type rectifier transformer unshakable in one's determination of the unit 24 pulse wave conjugation according to claim 1-4 any one, is characterized in that: the first half of described vertical core limb equidistantly and Lower Half are provided with the position of suit winding.
6. unit 24 pulse wave conjugation according to claim 1 liquid immersion type rectifier transformer unshakable in one's determination; it is characterized in that: described fuel tank is tub rectangle fuel tank, and its top is configured with pressure relief valve, radiator, oil conservator, respirator, temperature-detecting device, protection relay.
7. unit 24 pulse wave conjugation according to claim 6 liquid immersion type rectifier transformer unshakable in one's determination, is characterized in that: described pressure relief valve is positioned at the side above fuel tank, relative with oil conservator, for discharging the pressure in fuel tank, avoids fuel tank to be out of shape or blast.
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| CN108335886A (en) * | 2017-12-29 | 2018-07-27 | 金盘电气集团（上海）有限公司 | A kind of double transformer with split windings of change magnetic flux |
| CN108335867A (en) * | 2017-01-20 | 2018-07-27 | 特变电工智能电气有限责任公司 | A kind of photovoltaic inversion double division boosting dry-type transformers of conjugation-type |
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| CN108335867A (en) * | 2017-01-20 | 2018-07-27 | 特变电工智能电气有限责任公司 | A kind of photovoltaic inversion double division boosting dry-type transformers of conjugation-type |
| CN108335867B (en) * | 2017-01-20 | 2024-01-23 | 特变电工智能电气有限责任公司 | Conjugated double-split boosting dry-type transformer for photovoltaic inversion |
| CN108335886A (en) * | 2017-12-29 | 2018-07-27 | 金盘电气集团（上海）有限公司 | A kind of double transformer with split windings of change magnetic flux |
| CN109448974A (en) * | 2018-09-20 | 2019-03-08 | 湖南大学 | A kind of integrated rectifier transformer of 24 pulse wave magnetic using the arrangement of alternating expression winding |
| CN110571021A (en) * | 2019-08-02 | 2019-12-13 | 湖南大学 | Single-machine 24-pulse dry-type traction rectifier transformer with double-bridge winding mirror image arrangement |
| CN110571021B (en) * | 2019-08-02 | 2022-01-21 | 湖南大学 | Single-machine 24-pulse dry-type traction rectifier transformer with double-bridge winding mirror image arrangement |
| CN117457337A (en) * | 2023-12-22 | 2024-01-26 | 河南铜牛变压器有限公司 | 24 pulse wave silicone rubber dry-type rectifier transformer for distribution system |
| CN117457337B (en) * | 2023-12-22 | 2024-03-01 | 河南铜牛变压器有限公司 | 24 pulse wave silicone rubber dry-type rectifier transformer for distribution system |
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