TW432409B - A reactor - Google Patents

Abstract

A reactor comprises a plurality of windings (3-5) each adapted to be connected to a phase (6-8) of a multiphase alternating voltage. The windings are configurated so that they upon connection to said voltage are influenced substantially by the same magnetic flux. At least one of said windings is at least partially formed by a cable in the form of a flexible electric conductor with an envelope able to confine the electric field created around the conductor.

Description

赝 432 4 Ο 9 _case number 88104659_year month_j | vi_ V. Description of the invention (1) Field of invention and known technology The field of invention of the present invention relates to a reactor including a plurality of coils. For connecting one of the phases of a multiphase alternating voltage. Each phase in the polyphase alternating voltage has at least one coil of a connected reactor, but it is determined that the number of coils is higher than the number of phases, and two or more coils are connected in series to one or more phases. This reactor can be used in many different fields, and in some cases it must be able to affect the electromagnetic quantity. In order to explain the present invention and the problems it intends to solve (but not to limit the present invention), this will be explained below when an error occurs in an electric device or network for transmitting or distributing power, or When the polyphase alternating voltage is asymmetric, it has a type for protecting different types of electrical equipment. It must be noted that the number of phases of the polyphase alternating voltage can be any number greater than one, but here it will be Examples of three-phase voltages are given below because three-phase voltages are the most common multi-phase voltage. Moreover, it must be emphasized that the present invention is not limited to a specific voltage range, but can be applied to low dielectric and high voltage situations. The reactors of the type described at the end are preferably connected so that different voltage sources and electrical installations or the network in question are connected in series. The device or network is connected to two or more alternating voltages having different voltage levels, which is suitable for connecting a reactor of this type between the device or network and one or more voltage sources. This can be, for example, a transformer or a transmission line. Here, the type of the reactor voltage can be interpreted as being caused by the change in the equivalent inductance of current sensing in different coils under specific interference, and therefore,

Page 5 Ρ4 32 4 Ο 9 ^ m ^ α Case No. 88ΗΜ659_ 年月 日 __ V. Description of the invention (2) Change the equivalent inductance of the reactor. It is usually necessary to avoid the need for reactors to provide an alternating voltage without any interference, that is, to minimize the voltage drop. However, it is quite necessary that when any type of interference occurs, the voltage drop across the reactor can be reasonably high, thus protecting the device from high currents. In the well-known reactors of this type, it is not possible to combine the needs of the two types, so a compromise must be achieved = this means that if a relatively high voltage drop is needed, and thus an asymmetrical error, an effective reactor can be obtained In the current limiting nature of the device, during the current operation, one fact cannot be ignored: that is, a certain level of voltage drop must be accepted. Most of this is because when designing the size of this reactor, a relationship of intermediate size is selected, so in these two cases, π intermediate results can be obtained. "A normal three-phase reactor has positive and negative sequences. The inductance must be at least as high as its own zero-sequence current. This means that if the zero-sequence current, as caused by a ground error, will actually limit this type of reactor, even at a symmetrical alternating voltage, the voltage drop Quite high. In this example, there is no zero-sequence current, but when the asymmetry in the alternating voltage due to errors or other disturbing zero-sequence currents, it must be limited. This type of reactor tries This limitation is achieved by introducing a high voltage drop due to the introduction of a higher inductance. The zero-sequence current is quite low, and in a three-pin reactor, this current-limiting effect is quite low. However, in a rotating-pin reactor, the zero-sequence The current will be about as high as the plus and minus sequence inductance. This means that the latter must be made quite large so that the zero sequence current can sense a sufficiently high inductance to make The current limiting effect of the reactor is quite good.

Page 6 ^ 4324 0 9 _Case No. 88104659_Year Month Date_Character_ V. Description of the invention (3) Therefore, the object of the present invention is to provide a reactor of the type defined in the above introduction τ. This reactor can handle The problems described above, and the problems associated with well-known reactors. A second object of the present invention is to provide a reactor with a structure that can improve the well-known reactors of this type, simplify the manufacturing process, improve reliability, low power loss during operation, and low price. Commercially more valuable than known reactors. The above main purpose can be achieved by the coils of this type of reactor, so that when connected to this voltage it can be affected by virtually the same magnetic flux. By arranging the coil so that it is actually affected by the same magnetic flux, it is possible to configure the connection coil so that, under normal circumstances, the magnetic flux is actually zero. That is, when supplying symmetrical multi-phase alternating voltage, it means that different currents in principle cause any inductance, and the voltage drop of the line coil will reach the minimum. However, the reactor can be structured according to the following methods: the self-inductance of the different coils is quite high, and the zero-sequence current is sensed by the inductor. Therefore, a very high voltage drop is required to drive this current, which will cause a very strong Current limit and maintain this zero-sequence current within an acceptable range. Because the reactor of the present invention does not interfere with normal operation, according to this method, it is possible to make the 0-sequence inductance much higher than that required by the conventional reactor. For example, the electrical equipment of the transmission network can effectively protect the extremely high ground fault current or short circuit generated when a tree falls on the network line according to this method. The performance of the reactor can be used in filters for the third harmonic and its multiples. Reactors effectively filter out these harmonics without affecting the basic current. Therefore, the combination of the current limiting device and the third harmonic filter can be obtained by a same reactor, which is also very interesting from the viewpoint of cost saving. Special declaration is required for reactance

Page 7 Amendment No. 4 〇 9 88104659 Fifth, the description of the invention (4) The device passively limits the current, that is, it automatically limits the zero-sequence current. Therefore, it is not necessary to specifically detect the zero-sequence current, and then a measurement operation is performed, which limits the zero-sequence current. This approach has considerable advantages in many power plants. However, sometimes it is necessary to detect erroneous currents for other purposes, such as controlling a circuit breaker. This detection, which is entirely related to the number of error currents, can be easily performed by any type of general magnetic flux measurement. According to a preferred embodiment of the present invention, the number of coils, the winding direction of the coils, and the number of windings per coil are selected so that when a multi-phase alternating voltage is supplied to the coils in a symmetrical manner, the magnetic flux is approximately Up is 0. Therefore, when supplying symmetrical currents, the influence of inductance on these currents is quite low. This advantage can be understood from the above. According to another preferred embodiment of the present invention, the number of phases is 3 *, and the present invention is particularly suitable for multi-phase ones. This is because in this example, the current flowing through the coil can be easily obtained. When the current phase is different and a symmetrical current is supplied, the current of the driving magnetic flux is approximately zero. If the coil windings are, for example, in the same direction as the number of coil windings belonging to the coils of equal corresponding phases, the current for driving the magnetic flux becomes zero. According to another preferred embodiment of the present invention, the coils belonging to different phases are arranged so as to be close to each other. This makes it easy to determine that the coils will be affected by approximately the same magnetic flux and that the magnetic leakage flux will be maintained at a low value. In the case of the air reactor t, this feature is often required, but in a reactor with a magnetic core, its importance is not necessarily so. Of course, this feature is also often required. According to another preferred embodiment of the present invention, the coils pass through a closed magnetic circuit, and according to another preferred embodiment of the present invention, a reactor includes a surrounding

[432409 _ case number 88104659_ year month __ V. Description of the invention (5) The closed magnetic circuit of the coil. Applying this closed magnetic circuit, applying a simple method, can make the line diagram be affected by approximately the same magnetic flux, and pass the magnetic flux through this magnetic circuit or core, and when asymmetry occurs in the supplied alternating voltage, Extremely high inductance can be sensed by the asymmetric distribution of current. When the voltage is a magnetic core, the current limiting characteristic can be improved. According to a preferred embodiment of the present invention, the core of the reactor can be magnetized and form a practically closed loop. This can maintain the main part of the magnetic flux inside the core and limit the magnetic leakage flux, so that when the supply is symmetrical, the lowest possible voltage drop can be obtained. According to another preferred embodiment of the present invention, the coil passes around the magnetic circuit completely or partially and surrounds the magnetic circuit. In the case of an air reactor, for example, a reactor that does not have any magnetic core in the magnetic flux, it is best to be practical. It is completely surrounded because it does not have to use an expensive core. The reactor of the present invention can also be designed to have a size to accommodate a higher magnetic field than a closed reactor, so the entire structure can be designed more delicately. The disadvantage is that under asymmetric conditions, its current limiting capability will be lower than that of a reactor with an air core. According to another preferred embodiment of the present invention, the magnetic circuit surrounds a circular area. This design means that in the case of forming a magnetic leakage core of a circuit using less material, a reactor can be manufactured at a lower cost. In this example the core can

Year, month, amendment 5. Description of invention (6) Shaped feet. According to the invention, another preferred practical inductance of the reactor is actually obtained in a closed magnetic leakage core. A second purpose of the embodiment is that the magnetic circuit has at least one air gap. It is linear. In some examples, this performance is more important than the better current limiting capability. The coil of the present invention includes an encapsulated tough field. The losses that can be generated through the possible electric field are structured in a way that does not need to be cooled. In the example of manufacturing and the use of the above, the material is not related. In this example, the coil is based on the existing coil. In the present invention, the coils of different coils have at least one coil formed by the reactor and a cable in the first patent application scope. The type of the cable is a sexual electrical conductor, and the encapsulation can limit the electricity generated around the conductor. Actually, Reduced, and the cooling device is better than the one that is missing in the past, and the insulation between the traditional and the traditional invention is another comparison, so it is possible to make another embodiment at least belong to the other limited to the insulator system The reactor produced by the electric conductor can be more efficient, which can reduce the losses and losses caused by the reactor to have a lower temperature. The structure of the coil that does not use it is simpler to install. The cable may be a flexible cable, which means a hard coil that is still used in conventional technology. In addition, in this edge body system, gas and liquid insulating material points are not used. The present invention is easier to solve in comparison with a core for a magnetic leakage core of a reactor of a common coil. In the preferred embodiment, the solid-state cable is used to form the cable. The advantage of this cable is to achieve the optimum so that two parts can be mixed with each other by making two electrical slow wires, that is, the coils of a coil that belong to the same coil, and Complete or partial advantage of another phase

Page 10 ^ 4 324 0 9 _Case No. 88104659_Year Month and Day_ \ ± L · ._ V. Description of the invention (7) The copy is in between, so for a given asymmetrical inductance, when it is symmetrical The sensed inductance can be reduced even further. It is better to eliminate the formation of magnetic leakage inductance than the symmetrical inductor. When conventional insulation techniques are used on the reactor, it is determined that it is impossible to mix the coils with each other. The features and advantages of the present invention can be further understood from the following description. Please refer to the accompanying drawings when reading. Brief Description of the Drawings The following description of the preferred embodiments is for illustrative purposes, and please refer to the drawings. Fig. 1 shows a schematic diagram of a possible application of the reactor of the present invention. Figures 2-9 show cross-sectional views of a reactor in a preferred embodiment of the present invention, and Figure 10 is a perspective view of a cable, which is particularly suitable for forming a coil of a reactor of the present invention, in which it has been removed The cables are different to illustrate their structure. Description of drawing number Reactor 2 coil 3-5 phase 6-8 magnetic core 9 cable 10 electric conductor 11 leg 14 '15 air core 1 7 detailed description of preferred embodiment

Page 11 I 143240 9 _ Case No. 88104659_ Year Month Day__ V. Description of the invention (8) The schematic diagram in Figure 1 shows that the reactor in the present invention is connected to a network for supplying a three-phase alternating voltage to the load 1 The load 1 is like an AC motor. Reactor 2 contains 3 coils 3-5, each coil being connected to each phase 6-8 of the alternating voltage network. The coils are wound around a common magnetized core of iron or an iron alloy. Looking from the position where the voltage is separated from the polyphase alternating voltage, the coil windings of different coils have the same direction and the same number of turns. This means that when a three-phase alternating voltage is provided in a symmetrical manner, the sum of the current flowing in the coil and the magnetic flux that commonly flows through the core is actually 0. Therefore, the addition and subtraction sequence currents in the corresponding coils will be I feel a very low inductance, and even the self-inductance in the corresponding coil is actually quite high. When the alternating voltage supplied is symmetrical, there is no zero sequence current. In an ideal relationship, the voltage U 3 induced in the coil 3 can be regarded as the mutual inductance of the phase to be considered, and its size is like the self-inductance of the corresponding phase, that is, U3 = L33 d (I3 + 14 + 15) / dt (1) Among them, L 3 3 is the self-inductance of coil 3, and 1 3, 1 4 and 15 are the currents flowing through the corresponding coils. It can be seen from the formula (1) that when the current in each phase is 0 (positive sequence current and negative sequence current), the voltage induced in each phase is 1, because the equivalent impedance is 0. Therefore, and no matter how high L3 3 may be, it will not affect the circuit. Whatever the 0-sequence component in each phase? If L33 is assumed to be quite high, a high voltage drop will be felt in all reactors. This voltage drop corresponds to a high impedance, and the outer sequence current is limited by this current1. This asymmetric load is caused by a short circuit caused by grounding in one of the phases. In this example, the reactor will strongly limit the short circuit current

Page 12 '^ 432409 _ Case No. 88104659_ Year Month Amendment _ V. The size of the description of invention (9) and protects motors, power networks, generators, transformers and any other electrical equipment.

Fig. 2 shows the structure of the reactor in the first preferred embodiment of the present invention. Moreover, this reactor and this will be described below are used to connect three-phase alternating voltage, and each phase includes a coil, but, as described above, the present invention is not completely limited by the connection description. Each coil is wound around a magnetic core 9. This coil is in a bad shape. ^ Here, coils 3-5 are formed by electrical slow wires 丨 0. The cable is in the form of an electric conductor 11 and has an encapsulation body or an outer sheath. Structures are used to limit the electric field around a conductor. The structure of this cable will be explained later. The advantage of using this cable in the example of the coil is that it is easier to insulate in each phase. D When the alternating voltage is symmetrical, the magnetic flux generated in core 9 is actually 0, because the currents between different phases will mutually Offset, and the leakage inductance in the reactor is quite low, which also makes the magnetic leakage flux of air quite low. Therefore, the flux induced in all coils is actually 0 in a symmetrical relationship, and only the magnetic flux of the magnetic flux is actually induced in each phase. When the flux is not symmetrical, the coils are induced to pass through the core. Flux = According to the embodiment of the present invention shown in FIG. 3, different coils are mixed with each other in a manner that the windings belonging to the same coil have windings belonging to another coil, and the other phase is completely or partially arranged in In the meantime. Therefore, it is possible to reduce the magnetic leakage flux and the magnetic leakage inductance of the same reactor. The reason why this close-wound winding is possible is because the cable with the characteristics defined above is used, that is, it encloses the electric field generated around the conductor. A reactor according to another preferred embodiment of the present invention is shown in Fig. 4, in which a magnet core 9 surrounds the coil. This type of reactor is

Page 13 Γ * 432409 _Case No. 88104659_Year Month and Day__ V. Description of the invention (10) The core is shaped like a ring, that is, like a continuous loop, and the reactor roughly corresponds to the axis. The rotation of 13 forms a symmetry. In fact, the coil does not completely form a rotational symmetry, but it has a spiral shape. 圊 5 shows that each coil in the present invention has a reactor with a common core 9, wherein the core is a traditional rectangular type, and the coil is a two-core flexible core. Feet 1, 4, 15. In this example, the air gap is configured at the core t, which may linearize the zero-sequence inductance, which is the performance required by the user. However, this means that the current limit of the reactor will decrease, which is because the inductance of the outer layer is reduced. Fig. 2 shows a modified form of the embodiment of Fig. 4, wherein there is no air gap, and the coils are mixed with each other to reduce magnetic leakage flux. A reactor according to another preferred embodiment of the present invention is shown in FIG. 7. This reactor is a so-called air reactor, which has an air core 17. It is important that in this reactor, the coils of air reactors belonging to different phases form a tight arrangement. This is because the coils will not be able to sense the same magnetic flux. However, the disadvantage of air reactors is that it is impossible to obtain a relatively high level. When the inductance is asymmetric, a fairly high current-limiting effect is obtained. However, air reactors are cheaper because they do not use iron cores, and it is possible to design their dimensions so that they have a larger magnetic field, such as 5T, instead of a core with iron cores in an asymmetric relationship. 2T, so that all structures can be compressed. The reactor mainly forms a rotational symmetry around the axis 13, although it is not completely symmetrical because the coil is spiral. Fig. 8 shows another embodiment of the reactor of the present invention, in which the coil is wound around the inner leg of a conventional core having three legs. This reactor is called a 'shell-shaped' reactor. In this example, the common flux is conducted in the middle leg

4 32 4 0 9 Case No. 88104659 Revised

Page 15 Guangjiao 4 32 4 Ο 9 _ Case No. 88104659_year month__ V. Description of the invention (12) For example, oil type. The insulation may be formed from a #P material. Moreover, the inner and outer layers are formed of a polymer material, even for semiconductors. The insulator 18 can be made of thermoplastic materials, such as low-density polyethylene (LDPE), high-density polyethylene (HDPE), polypropylene (PP), polybuthylene (PB), polymethyepenten (PMP), cross-linked polyethylene (XLPE), or rubber victory, such as ethylene-propylene rubber or silicone rubber. The resistivity of the inner and outer layers should be in the range of 10-6 Ω cm to 100k Qcm, preferably 10-3 -1000Ω (: ιη, 1-500 Ωιη is better. The resistance of the inner and outer layers, the conductor / The length of each insulator system ranges from 50 to Ώ 5 to 5 megaohms. Because the inner and outer layers of the semiconductor material surrounding the insulator tend to form a surface of approximately equal potential 'and the electric field in the insulator In this way, the distribution in the thickness direction of the entire insulator is quite uniform, so the electrical load or stress on the insulator system will be reduced. The adhesion between the insulating material and the inner and outer semiconductor layers is substantially uniform over the entire surface So that there are no vacancies, cavities, etc. This is of course especially important in high-voltage applications, and this type of cable is best an insulation system suitable for high-voltage 'can adapt to voltages greater than 100K V, especially higher than 3 6 The voltage of KV is preferably greater than 72.5KV. The electrical and thermal stresses that occur at this high voltage place a high demand on the insulating material. It is important to understand that the so-called partial discharge PD at high voltages In the application, it is a very important issue for insulating materials. When hollow spaces, holes, etc. are formed in the insulating layer, 'the internal electrical discharge may occur at high voltages, where the insulating material is' gradually degraded' and Cause electrical breakdown through the insulator. This will make

Page 16 ^ 4 32 4 U y _Case No. 88i04659_ Year and month _i ± L · ._ V. Description of the invention (13) Reactor failure. Preferably, the inner, outer, and solid insulators have approximately the same thermal properties to avoid voids or pores. This performance is especially important when these components have approximately the same coefficient of thermal expansion, so they can be maintained differently during temperature changes Complete adhesion between the layers, and when the temperature changes, the cable can expand and contract uniformly like a monolith without breaking or deteriorating its interface. The insulating layer may be, for example, a cross-linked low-density polyethylene and a polyethylene layer containing dust or material particles. Due to the change in temperature, the volume type can be completely absorbed by the change of the cable radius, and the relatively small difference in the coefficient of thermal expansion of the layers corresponding to the elasticity of these materials can be replaced by the expansion of the cable radius to replace the relaxation between the layers. The cable also has some toughness, and its toughness is reduced to a multiple of the radius of curvature, which is lower than the diameter of the 2 5 X cable, making it possible to bend * but it can be determined that a fairly good adhesion can be obtained between the corresponding layer and the solid insulator Sex. The cable has appropriate toughness for a radius of curvature of less than 10 X diameter of the cable, preferably the radius of curvature is below 5 X of the diameter of the cable. The E-modulus of different layers in the insulation system should be approximately equal, so no unnecessary shear stress will be caused between the interfaces of different layers, so the shear stress can be reduced. This application is when the cable is subjected to considerable bending, Produced between different layers when it causes tension on the outside of the bend and compressive stress on the inside of the bend. Although the present invention should be explained in terms of preferred embodiments, those skilled in the art need to understand that the above embodiments can be modified and changed without departing from the spirit and perspective of the present invention, in which the basic concept of the present invention is defined in the appended Within the scope of patent applications.

Page 17 r 432 4 Ο 9 _case number 88104659_year month __ V. Description of the invention (14) The winding method of the coil may not be the one shown in the drawing. When the same magnetic flux is applied, it is still A considerable effect can be obtained. In some examples, the arrangement of the windings can be further separated, so the required magnetic leakage flux can be obtained. As explained above, the magnetic material also surrounds the far coil D. In the case where the two phases surround a magnetic tube, there is an example in which there is one winding per wire. If there are more windings, these windings can surround the tube externally. If the tube is closed like a circle, these windings can completely surround the inside of the tube. The example described later is equivalent to a cover-type reactor as described above. The magnetic material does not surround the coil "is all wound M. In the magnetic material commonly called π shell type π, the material is enclosed in a small portion of two magnetic return conductors around the Xia Gai coil, and is enclosed in the coil The tube does not need to be a single piece. It can be installed in multiple pieces, but it can also be formed by a tape or a line around the phase. The perspective view of the tube can be any round shape, rectangular shape, etc. It can also be The combination of air gaps using different reactor cores. In the ideal idea of the present invention, a number of possible changes can be made to the reactor architecture of the present invention, and these changes are all within the scope of the present invention.

Page 18

Claims (1)

(Creating 4 32 # §P 逄 丨 〇4659 is 9.¾2 2 is the amendment _ 6. Application for patent scope 1, a reactor containing multiple wires (3_5), each coil is suitable for connection in the multi-phase alternating voltage Single-phase (6> 8), the coil is configured so that when connected to the voltage 'these coils are affected by the same magnetic flux, characterized in that at least a part of at least one of the coils (3-5) consists of a cable (10) Formed 'The cable is in the form of a tough electrical conductor with an envelope (12) (1Π' The envelope (12) is used to limit the electric field generated around the conductor. 2. If a patent is applied for The reactor of item 1 of the range, in which the number of phases 'the number of recording loops (3-5)' and the winding direction of the coil and the number of turns of each coil are such that when the coil is symmetrical under the supply of a multi-phase alternating voltage, then The sum of the currents flowing through the coil to drive the common magnetic flux is actually 0. 3. For the reactor in the first scope of the patent application, the number or phase number is 3. 4. The reactor in the first scope of the patent application , In which coils belonging to different phases are arranged so that they are close to each other. The reactor of item 1 of the scope of patent application, in which the coil windings of different coils (3-5) have the same direction, as viewed from the connection position to the direction of the multi-phase alternating current. The reactor of item 1, wherein each coil is wound around a common closed magnetic circuit (9, 16). 7. The reactor of item 1 in the scope of patent application, which includes a common closed magnetic circuit 'and surrounds the coil. 8_If the scope of the patent application & net reactor, the magnetic circuit (9,16) contains one or more materials, these materials may have different magnetic properties, and can be connected in any number β ! No. 88104659 6. Scope of patent application 9. The reactor according to item 6 of the patent application 16) At least one of the materials is iron or an iron alloy. 10. The reactor according to item 6 of the patent application contains the entire iron or iron alloy. Among them, the magnetic circuit (9, t magnetic circuit (9) includes i. 1. At least one material (9, 16) in the reactor of item 6 of the patent application is non-magnetic. 12 · As of patent application range u At least one of the reactor materials of item (9, 16) is air. 13. For example, the reactor of item 12 in the patent application range completely includes air. ™ t is in the magnetic circuit (1 6) 1 of which is a non-magnetic material Among them, the magnetic circuit (1 7) 1 4 · If the reactor in the scope of patent application No. 6 has one less air gap (U) D 15-like the reactor in scope of patent application No. 6) surrounds a circular area. 16. The reactor as in item 6 of the patent application 16) encloses a rectangular area. 17. The reactor as claimed in item 6 of the patent application 16) surrounds a triangular area. The reactors in item 6 of Zhongqing's patent range are only connected with -winding coils (3-5). Virtual form 2. For example, please ask for the reactor hole 1 39 of the patent scope item 18 which is wider than the area around the reactor 5) $ This Ruyi Shen's reactor scope of the patent scope item 6, where The coil of the coil (3 '^ the coil of the magnetic circuit (9, 16) surrounds all or part thereof, wherein the magnetic circuit has the magnetic circuit (9, where the magnetic circuit (9, where the magnetic circuit (9, Wherein each phase (9, where the winding can Page 20 觼 4 32 4 Ο p --- Case No. 拈 104R59 6. Scope of Patent Application " ----- copies. 21. If the magnetic field around the coil is covered by item 6 of the scope of the patent application, Λ ′ among which the coil (3, 5) 22. If the scope of the patent application is 2 to 6) reactance,) surrounds the entire coil or part thereof. ^ 35 where the magnetic circuit (9, 16 where the magnetic circuit (9, 16 where each coil is equipped with all the coils 23 such as the reactor in the patent claim 6), part or several of the coil 24. If the reactor under the scope of the patent application is applied, it is placed in a carrier of non-magnetic material. 25. If the reactor under the scope of the patent application, i is formed by the cable. 2 6. If the patent is applied for In the reactor of the 24th item, the coils (3-5) are at least partially mixed, that is, they belong to the same line orchid: " "碉 介 、 相 丨" ankle coil winding has a coil winding belonging to another coil And the other phase is completely or partially in between. 27. For example, the reactor of the scope of application for patent No. 24, wherein the encapsulation includes an insulator system, wherein the insulator system comprises an insulator made of a solid insulating material > (18) and its outer side includes an outer layer (19). The conductivity of the outer layer is higher than the conductivity of the insulator, so the outer layer can be grounded or correspond to a low voltage. On the one hand, it can equalize the voltage 'and on the other hand it is roughly The upper envelope is directed by the outer electrical conductor (11) The electric field generated. 28. The reactor according to item 24 of the patent application, wherein the envelope includes an insulation system having an insulator (18) formed of a 'solid insulating material and an inner layer inside it (20), the at least one electric conductor (11) is arranged inside the inner layer, and the inner layer has an electric conductor, and the electric conductivity Page 21 a _Amendment -__ VI. Scope of Patent Application The conductivity of the body is lower than the conductivity enough to equalize the inner layer operation, and therefore ′ is equal to the electric field outside the inner layer. 29. The reactor of the 27th in the scope of patent application, the inner and outer layers and the solid insulator have approximately equal thermal properties. 30. The reactor I according to item 27 of the patent application, wherein the inner layer and / or the outer layer (19, 20) contains a semiconductor material. 31. If the reactor of the 27th scope of the patent application, the resistivity of the inner layer and / or the outer Tang (19 '2D) is between 10-6Ωι-ΐ〇〇κΩ (: ιη, the appropriate range is 103 -100cm, preferably 50. Ωιπ. 32. For example, the reactor in the 27th scope of the patent application, wherein the inner layer and / or outer layer (19,20) has a resistance, this resistance is per meter The conductor / insulator system is between 50 // Ω-5M Ω. 33. If the reactor under the scope of patent application No. 27, the solid insulator (18) and the inner layer (20) and / or outer layer (19) 34. The reactor according to item 27 of the patent application, wherein the inner layer (20) and / or the outer layer (19) and the solid insulator (18) are rigidly connected substantially over the entire surface to determine the toughness It can still have fairly good adhesion when temperature changes. 3 5 · For example, the reactor under the scope of patent application No. 27, wherein the solid insulator (18), inner layer (20) and / or outer layer ( 19) »36. If the reactor of the scope of patent application No. 35, the solid insulator (18), the inner layer 20) and / or outer layer < 1'9) of a material having a substantially equal Ε modulus. 37. For the reactor in the scope of patent application No. 27, wherein Page 22 ^ B4 3 2 88104659_Year Month Day Amendment __ VI. Scope of Patent Application Materials with equal thermal expansion coefficients form the inner layer (20), and / or the outer layer (19) and solid material (18). 38. The reactor of claim 27, wherein the inner layer (20) makes electrical contact with at least one electrical conductor (11). 3 9 · If the reactor of the 38th scope of the patent application, the at least one electric conductor (11) contains a plurality of live wires, at least a part of the at least one of the electric conductors is not insulated, and is configured to be in line with The inner layer (20) forms electrical contact β 40. For example, the reactor in the 27th scope of the patent application, where the design conductor and its insulation system can withstand high voltage, suitable for electric dust greater than 10KV, especially greater than 36KV, preferably withstand Voltage greater than 72.5KV. 5KV。 41. As claimed in the scope of the patent application of the reactor, wherein the reactor is suitable for connecting to high voltage through the coil, suitable for higher than 10KV, especially higher than 36 κν ′ preferably higher than 72. 5KV. Page 23