33 results about "Shunt reactor" patented technology

The utility model belongs to the field of paralleling reactors, and relates to a low-noise extra-high voltage paralleling reactor iron core structure which comprises iron core columns, an upper cross beam, an upper pressing beam, a lower foot pad and an iron yoke of a rectangular frame type structure, fourth pull screw rods are installed at the front ends and the rear ends of the left side and the right side of the periphery of the iron yoke, and fifth pull screw rods are installed at the front ends and the rear ends of the upper side and the lower side of the periphery of the iron yoke. VII pull screws are mounted at two corners of the upper end of the inner circumference of the iron yoke and close to the inclined seam of the iron yoke, first shock pads are mounted between the fourth pull screw, the fifth pull screw and the seventh pull screw and the iron yoke, insulating base plates and second shock pads are mounted between the upper cross beam, the upper pressing beam and the lower foot pad and the iron yoke, and an insulating rubber plate of an L-shaped structure is mounted on the outer side of the iron yoke and close to the inclined seam of the iron yoke. According to the utility model, the clamping force of the iron yoke is increased by adding the iron yoke clamping structure, and the transmission of noise is blocked while the vibration is reduced by adding the pull screw rod and arranging the insulating rubber plate at the inclined seam of the iron yoke; and by arranging a shock pad, noise generated by resonance of the pull screw rod is further reduced.

A three-phase adaptive reclosing method and system for wind farm transmission lines based on parallel reactor current is provided. When a phase to phase or three-phase fault occurs in the transmission line, the circuit breakers at both ends trip. The current transformer is used to sample the three-phase current signal of the parallel reactor, calculate the differential mode current of the parallel reactor, and perform zero crossing detection to construct a fault nature identification criterion. The fault nature is determined within the maximum discrimination time limit combined with the sliding time window. For permanent faults, the reclosing device is locked; for transient faults, calculate the time when the fault disappears and determine the reclosing time, and open the reclosing device. The method and system identifies the nature of faults by detecting whether the differential current of parallel reactors crosses the zero axis, with low sampling rate requirements, and small errors.

The utility model belongs to the technical field of reactors, and particularly relates to an extra-high voltage shunt reactor oil tank composite noise reduction structure which comprises a rubber plate fixedly installed in an oil tank wall, the outer side of the rubber plate is attached to the surface of the inner side wall of the oil tank wall, and a sound absorption hole-free paperboard is fixedly installed on the inner side of the rubber plate. A double-layer composite perforated plate sound absorption mechanism is fixedly installed on the inner side of the sound absorption hole-free paperboard, gaps are reserved among the rubber plate, the sound absorption hole-free paperboard and the double-layer composite perforated plate sound absorption mechanism, and a gap is reserved between two layers of perforated plates of the double-layer composite perforated plate sound absorption mechanism. The double-layer composite perforated plate sound absorption mechanism comprises a first perforated paperboard and a second perforated paperboard. The composite noise attenuation structure composed of the rubber plate and the multiple layers of insulating paper plates is arranged on the inner side wall of the oil tank, vibration waves transmitted from insulating oil are blocked and weakened through material combination of different media, vibration noise can be reduced, and the composite noise attenuation oil tank is an important measure for solving the problem of noise of an electric reactor.

The application discloses a novel lung lobe-shaped magnetic shielding partial discharge detection device and a detection method. The device comprises an isolation transformer, a bushing, a detection electrode and a partial discharge instrument. A single-phase power supply is connected with a reactor in parallel, and then connected with an input end of the isolation transformer. One end of an output end of the isolation transformer is connected with the bushing, and then connected with the detection electrode. The other end of the output end of the isolation transformer is grounded. A grounding end of a to-be-detected lung lobe-shaped magnetic shielding is grounded, and the grounding end of the to-be-detected lung lobe-shaped magnetic shielding is connected with the partial discharge instrument. The to-be-detected lung lobe-shaped magnetic shielding and the detection electrode are correspondingly arranged to form an equivalent capacitor and are coupled and connected. The application can be used to determine whether there is a defect in the lung lobe-shaped magnetic shielding by performing a partial discharge test on the lung lobe-shaped magnetic shielding before the lung lobe-shaped magnetic shielding is assembled into a transformer. The application has the characteristics of high test efficiency and low applied voltage, and greatly improves the first-time pass rate of the transformer product provided with the lung lobe-shaped magnetic shielding.

The invention discloses an electric power protection system, a control method and a related product. The power protection system comprises a controller, a switch assembly and a three-phase shunt reactor, the three first ends of the switch assembly are connected with the three-phase alternating current circuits in a one-to-one correspondence mode, the three second ends of the switch assembly are connected with the first ends of the three-phase shunt reactors in a one-to-one correspondence mode, and the second ends of the three-phase shunt reactors are connected together. A controller configured to obtain a three-phase AC voltage and a three-phase AC current; obtaining three-phase interphase impedance according to the three-phase alternating voltage and the three-phase alternating current; according to the three-phase interphase impedance, judging whether the reactor has a turn-to-turn short circuit fault or not; and under the condition that the reactor has a turn-to-turn short circuit fault, the switch assembly is controlled to be switched off. According to the embodiment of the invention, whether the reactor has the turn-to-turn short circuit fault or not is judged through the three-phase interphase impedance, and the switch assembly is controlled to be switched off under the condition that the reactor has the turn-to-turn short circuit fault, so that the safety of a power grid is improved.

The application discloses an oil-immersed shunt reactor defect vibration simulation test device and method, which comprises an oil tank, an iron core and a winding wound on the iron core arranged in the oil tank, a water content online monitoring device connected with the oil tank through an interface pipeline and used for monitoring the water content of the insulation oil in the oil tank in real time, an oil chromatography online monitoring device connected with the oil tank through an interface pipeline and used for monitoring the set gas content of the insulation oil in the oil tank in real time, a heating element arranged in the oil tank and used for heating the oil sample, a vibrating element arranged below the oil tank and used for generating vibration of a set frequency, and defect elements arranged on the iron core and the winding respectively and used for simulating the defects of the reactor. The application can simulate the vibration defects, local overheating defects and suspended discharge defects of the reactor and accumulate a large amount of defect diagnosis test data through monitoring electric and chemical characteristic quantities.

The application discloses a dry-type hollow shunt reactor overvoltage protection device and belongs to the technical field of overvoltage protection of power transmission and transformation equipment. When system operation overvoltage occurs, the frequency absorption unit can reduce the oscillation frequency of overvoltage, slow down the rising front of overvoltage, solve the damage of high-frequency components to the reactor winding, and inhibit the overvoltage peak value. When the frequency absorption unit cannot inhibit the overvoltage peak value, the overvoltage absorption unit plays a role in limiting the overvoltage peak value, and the insulation level of the reactor is enhanced. Through the application of the voltage monitoring and conversion unit, when the reactor is normally operated or the overvoltage is lower than the operation threshold value, the high-speed control switch is turned on, the explosion-proof separation unit is short-circuited and bypassed, and the frequency inhibition absorption unit and the overvoltage absorption unit bear the main protection task. When the monitored voltage exceeds the set threshold value or the absorption unit fails or is subjected to thermal breakdown, the high-speed control switch is turned off, the explosion-proof separation unit is connected to the circuit, the faulty unit is timely removed, and the fault expansion is prevented.

The utility model provides an alternating-current parallel hybrid converter and a direct-current power transmission system, and relates to the technical field of high-voltage direct-current power transmission. The AC parallel hybrid converter comprises: a current source converter; the alternating current side of the voltage source converter is connected with the alternating current side of the current source converter in parallel; and one end of the reactor is connected with the alternating current side of the current source converter, and the other end is connected with an alternating current system. The AC parallel hybrid converter filters 6k + / -1 harmonic waves by using a voltage source converter, the high-voltage DC power transmission system directly adopts a six-pulse bridge circuit, and a converter transformer is replaced by an electric reactor, so that the converter structure of the high-voltage DC power transmission system is simplified, and the equipment manufacturing cost is reduced.

The application discloses a kind of generator phase-advancing capability analysis method and system based on power grid transient stability constraint, comprising the following steps: according to power grid system stability and converter station bus voltage control condition obtains single machine maximum phase-advancing depth;According to single machine maximum phase-advancing depth, obtain the phase-advancing depth of power plant and the phase-advancing depth reserved by whole plant.This application mainly aims at the problem that the regulation range of other regulating means such as shunt reactor is limited when voltage is too high due to excessive reactive power, fully considers factors such as stator end heating and power angle static stability, determines single machine maximum phase-advancing depth, considers the most serious situation of overvoltage of DC converter station, determines the phase-advancing capability of power plant and the phase-advancing capability reserved by whole plant after DC fault tripping based on whether steady-state overvoltage exceeds voltage limit, fully develops the voltage regulating capability of generator, so as to more economically and efficiently ensure the stable operation of power grid voltage.

A shunt reactor is presented comprising a primary winding (1) and a steel core (2). The steel core comprises a bottom yoke (3), a top yoke (4), a first limb (5), a second limb (6) and a main limb (7). The first limb, the second limb and the main limb are arranged in parallel and between the top yoke and the bottom yoke to form a support to a magnetic flux passing through the steel core. The primary winding is wound around the main limb to generate the magnetic flux passing through the steel core. The shunt reactor further comprises an auxiliary winding (8; 8') arranged to be wound around the bottom yoke, the top yoke, the first limb or the second limb and configured to generate an auxiliary electric power from the magnetic flux generated by the primary winding. The primary winding and the auxiliary winding are electrically insulated from the steel core and from each other. A cooling fan (12) is configured to be driven by the auxiliary electric power generated by the auxiliary winding.

The utility model relates to a kind of external insulation test system for dry shunt reactor considering complex environmental influence, and the test cavity is surrounded by insulation test box, high-voltage test power supply is set to the outside of insulation test box, air circulation heating and humidifying device and illumination device are all set in test cavity, the monitoring end of remote and on-site monitoring device is set in test cavity, the injection end of salt fog device and the injection end of spraying device are all set in test cavity;High-voltage test power supply is used to apply test voltage and test current to the dry shunt reactor to be measured;Compared with traditional examination test system, the external insulation performance of dry shunt reactor can be examined under the influence of complex environment, the weather resistance of dry shunt reactor insulation system is evaluated, and the operation reliability of dry shunt reactor is improved;At the same time, the accuracy of examination is improved.

The utility model discloses an insulation noise reduction structure of an extra-high voltage oil-immersed shunt reactor, which comprises a plurality of layers of insulation partition plates, a cork rubber pad, a non-adhesive laminated wood fastener, a hot-pressed polyester resin plastic laminated board fastener and a lastrum laminated wood bracket, and the two adjacent layers of insulation partition plates are separated by the cork rubber pad. And the insulating partition plate is fixed on the box wall of the extra-high-voltage oil-immersed shunt reactor through the cork rubber pad, the non-adhesive laminated wood fastener, the hot-pressed polyester resin plastic laminated board fastener and the Lushi laminated wood bracket. The insulation noise reduction structure has enough mechanical strength and certain flexibility, integrates the advantages of reliable mechanical structure, reliable insulation, noise absorption and the like, and solves the problems of high ground potential field intensity and low noise attenuation in a high-voltage line end outgoing line area. The low-noise electric reactor has the advantages of being capable of improving the ground insulation strength of the high-voltage line end and absorbing and attenuating noise, and is suitable for the design of low-noise electric reactors with the grade of 750 kV to 1100 kV.

The application discloses a kind of offshore wind farm reactive power optimization configuration method and device, the method comprises: according to the preset equivalent calculation model, using wind farm reactive power shortage determines first reactive power shortage surface and second reactive power shortage surface, and obtains first capacitive reactive power compensation and first inductive reactive power compensation;The wind power generator set is calculated under the condition of no load and full load wind farm reactive power shortage, determine high-voltage shunt reactor capacity, with harmonic resonance as constraint condition, after grouping high-voltage shunt reactor capacity, combined with the objective function constructed by the sum of dynamic compensation device investment cost annual value and annual active network loss, and with static voltage stability margin, first capacitive reactive power compensation, first inductive reactive power compensation and voltage deviation as constraint condition, the compensation capacity of dynamic reactive power compensation device is optimized and calculated.Reduces comprehensive cost and improves the security of reactive power configuration.

The invention provides a sound insulation cover field sound insulation effect evaluation method based on oil tank vibration and sound signal inversion, and relates to the technical field of substation reactor sound insulation cover noise field evaluation. The method comprises the following steps: firstly, collecting surface vibration data of the extra-high voltage shunt reactor, and calculating an average sound pressure level of body noise according to the surface vibration data; constructing a multi-sound-source noise calculation model, and combining the frequency domain data of the full-band noise of the receiving point to solve the sound propagation attenuation under each frequency; a sound source single-band sound power inversion model is further established, and the sound power and the full-band sound power spectrum of the sound source are obtained; and finally, the insertion loss of the acoustic enclosure is calculated according to the full-band sound power spectrum and the average sound pressure level of the body noise, and accurate quantitative evaluation of the field sound insulation effect of the acoustic enclosure is realized. The method can effectively overcome the defects that traditional measurement is easily interfered by environmental noise and real insertion loss cannot be obtained.

The paralleling reactor with the iron core cake limiting function comprises a frame body mechanism and an auxiliary mechanism, the frame body mechanism comprises a vacuum sound insulation sleeve, a coil is arranged in the vacuum sound insulation sleeve, an iron core cake is arranged in the coil, and an assembly through hole is formed in the middle of the iron core cake in a penetrating mode. Through the arrangement of the pressing rods and the adjusting bolts, after an iron core cake is extruded, the adjusting bolts are adjusted to enable the two pressing rods at the opposite angles to be close to each other, in this way, the rubber buffer sleeve can be inserted into the upper inclined pressing groove and the lower inclined pressing groove, a gap is partially filled, and the rubber buffer sleeve deforms along with extrusion; according to the technical scheme, the edge of the iron core cake is limited, in this way, in the using process, vibration of the edge of the iron core cake can be absorbed through the rubber buffer sleeve, generated noise can be reduced, meanwhile, the vacuum sound insulation sleeve is arranged in a matched mode, noise can be further restrained, sound generated in the working process is reduced, and therefore the influence on the environment is reduced.

This invention discloses a method and system for identifying permanent faults in ultra-high voltage (UHV) AC transmission lines, comprising: acquiring fault waveform data of the instantaneous three-phase voltage values ​​after a fault in an UHV transmission line with shunt reactors, and determining the two faulty phases experiencing interphase faults based on the fault waveform data; calculating the interphase differential mode voltage between the two faulty phases based on the fault waveform data; taking the extinction of the arc at the fault point after the circuit breaker trips as the starting time, performing sliding window integration on the interphase differential mode voltage according to a preset time window to obtain the integrated value of the interphase differential mode voltage; within a preset time window, if the integrated value of the interphase differential mode voltage is continuously less than a preset integration threshold, or simultaneously satisfies the condition that the integrated value of the interphase differential mode voltage is greater than the preset integration threshold but the number of sampling points is continuously less than a preset number, then a permanent fault is determined to have occurred. The method of this invention can be applied to fault type analysis of UHV transmission lines and provides scheduling and operation decisions for maintenance personnel.

The application provides a programmable voltage source circuit, a power supply device and a power electronic device experiment system, relates to the technical field of electronic circuits, and the scheme comprises a voltage source submodule, the voltage source submodule comprises a full-bridge circuit, an alternating current capacitor, a first unidirectional conducting device, an electric reactor and a power compensation module, the alternating current capacitor is connected in parallel with the full-bridge circuit, the first end of the electric reactor is connected with the first bridge arm intermediate node of the full-bridge circuit through the first unidirectional conducting device, the second end of the electric reactor is connected with the second bridge arm intermediate node of the full-bridge circuit, the power compensation module is connected in parallel with the first unidirectional conducting device, and the current flowing out of the electric reactor is compensated for when the current flowing out of the electric reactor is lower than a reference current value, so that the voltage rise or drop of the alternating current capacitor is more stable, and the reliability of the output voltage of the programmable voltage source circuit is improved, and the load object of the circuit can be a converter, namely, the circuit can provide stable voltage for the experiment of the converter.

A high-power four-quadrant converter system includes a double-secondary-side oil-immersed rectifier transformer with an output connected to four three-phase bridge type thyristor rectifiers, wherein every two rectifier bridges share a group of rectifier transformer secondary sides; two rectifier bridges sharing a group of rectifier transformer secondary sides are inversely connected in parallel, one of the two rectifier bridges realizes a forward output, and the other one realizes a reverse output; two groups of rectifier bridges which output in the same direction can operate independently or in parallel; when the two groups of rectifier bridges operate in parallel, reactors are connected in parallel to realize current sharing; and the rectifier bridges for the forward output and the reverse output realize free smooth transition under control of a controller, so that a four-quadrant operation of an output current is realized. When the system operates, the electromagnetic compatibility of sensitive components is high.

The invention belongs to the technical field of electrified railway traction power supply, and particularly relates to a through cable bilateral power supply system, a working method and a control method thereof. The system is composed of a single-phase high-voltage traction cable, a main traction substation, a plurality of single-phase traction substations and a traction network. The main traction substation comprises a main traction transformer and a power flow controller, the single-phase traction substation comprises a single-phase traction transformer and a shunt reactor, the cable voltage is 110kV, and the traction bus voltage is 27.5 kV. During working, three-phase power grid electric energy is subjected to voltage reduction through the main traction transformer, part is directly supplied to a traction bus, and part is connected after being adjusted by the power flow controller; the high-voltage cable transmits electric energy to each single-phase traction substation, part of the electric energy is subjected to reactive compensation through the reactor after voltage reduction, part of the electric energy enters a traction network, and finally the bus and the substation electric energy are converged into the network to supply power to a train. According to the control method, the stability of the system is guaranteed by detecting voltage, collecting network side parameters, calculating a target value and reference current of the power flow controller and dynamically adjusting power flow.

The utility model relates to the field of electric reactor fault simulation, especially a single -phase double -column parallel electric reactor fault simulation device, device main part is double silicon steel sheet core column structure, winding winding on the column, four around set up iron yoke, still be equipped with electrical fault simulation unit and mechanical fault simulation unit, wherein electrical fault simulation unit includes the front insulating plate and a plurality of taps of setting in device main part front, simulate the fault of turn -to -turn short circuit through short -circuit tap, the more short -circuit tap, represent the more serious fault, short -circuit tap of different position, represent the position of fault occurrence is different, and mechanical fault simulation unit includes the first loose simulation unit for simulating winding loose fault.

The invention provides a manufacturing method of a triangular yoke structure for a shunt reactor. The manufacturing method comprises the steps that S1, a triangular yoke roll core is fixed to a winding disc of a winding machine; s2, the silicon steel strip is pulled to be subjected to tension control through a tension control system; s3, winding the silicon steel strip on the triangular yoke core, rotating the yoke core, and winding the silicon steel strip on the yoke core to form a triangular inner circumferential yoke; s4, winding of the inner circumferential yoke is completed, three spacer blocks are placed on the periphery of the inner circumferential yoke, and the three spacer blocks correspond to the three corners of the triangular yoke winding core; s5, winding a silicon steel strip on the peripheries of the inner peripheral yoke and the three spacer blocks to form a triangular outer peripheral yoke; and S6, winding of the peripheral yoke is completed, and a glass fiber tape is wound around the periphery of the peripheral yoke to fix the peripheral yoke. The problems that a circular yoke iron structure produced in the prior art has a large number of invalid sections, and the effective utilization rate of the sections is low are solved.

The invention discloses a test method for measuring on-site long-time induced voltage and partial discharge of a 1000kV shunt reactor, and discloses a test system with the test method for measuring on-site long-time induced voltage and partial discharge of the shunt reactor. According to the paralleling reactor on-site long-time induced voltage and partial discharge measurement test method, the test is carried out by using an ultra-high voltage transmission line, the investment amount of test equipment is greatly reduced, test wiring is simplified, the workload of a resonance test carried out by adopting a special test compensation capacitor traditionally is reduced, the test efficiency is improved, and the test cost is reduced. Meanwhile, interference signals caused by corona of a line framework are reduced, the characteristics of partial discharge signals of an equipment body are restored to the maximum extent, and the internal insulation state of the tested reactor can be effectively and truly judged.

The utility model belongs to the technical field of paralleling reactors, and relates to an extra-high voltage paralleling reactor oil tank noise reduction mechanism which comprises a reinforcing iron shell, the reinforcing iron shell comprises a closed side plate and an open side which are oppositely arranged, the periphery of one side of the closed side plate is integrally provided with a blocking side plate to form the open side, and a quartz sand layer is arranged on the inner side of the closed side plate. A plurality of long-strip-shaped pressing plates are evenly distributed on the inner side of the quartz sand layer at intervals, the two ends of each long-strip-shaped pressing plate are welded to the left inner wall and the right inner wall of the reinforcing iron shell, sound insulation plates and sound absorption cotton are sequentially arranged on the inner sides of the long-strip-shaped pressing plates, and the open side of the reinforcing iron shell is welded to the outer surface of the oil tank wall. A series of efficient sound absorption and insulation materials such as the sound absorption cotton, the sound insulation plate and the quartz sand layer are ingeniously integrated in the reinforced iron shell, in the operation process of the reactor, the materials can effectively block the resonance conduction path of electromagnetic vibration from the interior of the oil tank to the exterior, and therefore the excellent noise reduction effect is achieved, and the service life of the reactor is prolonged. And low-noise operation of equipment is ensured.

The application discloses a kind of for extra-high voltage shunt reactor overall transport and reduce noise structure, it is related to transformer technical field, the structure includes reactor main body, high voltage outgoing line elevation seat, neutral point bushing, high voltage bushing, confluence pipe, radiator, fan and oil conservator, fan is installed in the lower part of radiator, radiator is installed in the other side of reactor main body installation high voltage outgoing line elevation seat, and radiator is directly installed in the oil tank side wall of reactor main body by confluence pipe, and oil conservator is installed in the upper portion of reactor main body;The upper portion of reactor main body is fixedly installed with oil conservator support, and oil conservator is fixedly installed in oil conservator support;The assembly position of oil conservator support and reactor main body is provided with damping rubber pad;The fan, radiator and oil conservator of the application are integrated and installed on the reactor main body, realize integral integrated handling, without disassembly, oil discharge, simplify overall transport work flow, improve transport efficiency.

A shunt reactor includes a primary winding and a steel core. The steel core includes a bottom yoke, a top yoke, a first core limb, a second core limb, and a main limb. The first core limb, the second core limb and the main limb are arranged in parallel and in between the top yoke and the bottom yoke to form a support for a magnetic flux through the steel core. The primary winding is wound around the main limb. The shunt reactor further includes an auxiliary winding wound around the bottom yoke, top yoke, first core limb, or second core limb, and is configured to generate auxiliary power. The primary and the auxiliary windings are electrically insulated from the steel core and from each other. A cooling fan is configured to be driven by the auxiliary power generated by the auxiliary winding.

The invention discloses a power circuit switching method and a hybrid circuit breaker. The hybrid circuit breaker is formed by connecting a vacuum gap and a gas gap in series, when closing operation is carried out, the vacuum gap is firstly switched on, and then the gas gap is switched on after a first preset time; and when the cut-off operation is carried out, the gas gap is cut off firstly, and then the vacuum gap is cut off after a second preset time. According to the invention, precise closing of the capacitor bank or the shunt reactor is realized in cooperation with a phase selection closing technology; and when the capacitor is disconnected, the gap between the moving contact and the static contact of the gas gap has a larger gap distance than the gap between the moving contact and the static contact of the vacuum arc-extinguishing chamber, and the gas gap and the static contact jointly bear the function of recovering voltage after the arc, so that the re-breakdown probability after the arc of the circuit breaker is cut off can be greatly reduced.

The invention discloses an equipment support annular rod for a shunt reactor group and a preparation method thereof. The equipment support annular rod comprises a rod body, and the rod body is composed of a concrete layer and a GFRP framework arranged in the concrete layer; the mounting seat is arranged at the top end of the rod body. According to the invention, the GFRP bars are used in the reinforced concrete annular rod to replace traditional steel bars, so that the purpose of preventing electromagnetic circulation is achieved; uHPC concrete is added into the reinforced concrete annular rod, so that the purposes of improving the bearing capacity and deformation of the annular rod, reducing the section size of the annular rod and inhibiting longitudinal cracks are achieved; the GFRP rib and the UHPC are combined for use, so that the anchoring and brittleness problems of the GFRP rib are solved, and the ductility of the component is improved; an isolation gasket is inserted into the joint of the annular rod top welding channel steel and the post insulator, so that a closed magnetic and conductive loop formed by the post insulator, a bolt and the channel steel can be effectively isolated, and the problem of heating caused by electromagnetic circulation is effectively solved.

The utility model discloses a 3.45 MW high-power-density modular reactor for an energy storage system, and belongs to the technical field of power electronic equipment. The structure comprises a module assembly box with honeycomb-shaped heat dissipation through holes, a built-in three-parallel reactor body and a high-heat-conduction heat dissipation colloid. A double-layer porous upper cover plate is arranged at the top of the module assembling box, a sliding rail type supporting base is arranged at the bottom of the module assembling box, and three reactor bodies are fixed in the box body through an assembly inner support and filled with boron nitride modified silicon-based heat dissipation glue. The heat dissipation colloid and the honeycomb through holes form a three-dimensional heat dissipation channel, gradient heat dissipation is achieved in combination with the vertical fins on the side wall, the temperature rise of the reactor body is reduced by 18-25 DEG C, and electromagnetic noise is attenuated by 10-15 dB. The slide rail assembly structure realizes rapid module replacement through a locking screw, and the operation and maintenance efficiency is improved by 60%.

The utility model belongs to the field of shunt reactors, and relates to a body positioning damping structure of a low-noise extra-high voltage shunt reactor, which comprises a damping structure I, a damping structure II and a damping structure III, the damping structure I is fixedly arranged between an iron core foot pad and the bottom of an oil tank, and the damping structure II is fixedly arranged between a lower cross beam and the bottom of the oil tank. The first damping structure and the second damping structure each comprise a paperboard, cork rubber and a damping rubber mat which are sequentially stacked layer by layer from top to bottom, the third damping structure comprises a damping rubber mat, an insulating positioning bowl, a positioning pipe and a positioning pin, the lower end of the positioning pipe is welded to the upper surface of the oil tank bottom, the damping rubber mat is arranged at the bottom of the positioning pipe, and the insulating positioning bowl is arranged above the damping rubber mat; the upper end of the positioning pin is welded to the lower surface of the lower clamping piece, the positioning pin corresponds to the insulating positioning bowl, and the insulating positioning bowl is filled with epoxy resin. The composite damping system is matched with pouring positioning of the reactor body, vibration energy transmission of the reactor body is reduced, and noise of the reactor is lowered.