363 results about "Rogowski coil" patented technology

The invention discloses a lightning stroke risk assessment method for an overhead transmission line tower, and the method comprises the following steps: determining an extreme consequence situation which may cause lightning stroke through a reverse risk recognition method, deducing a key region and a protection object for risk assessment, collecting environmental factor data related to lightning stroke, and carrying out the calculation of the environmental factor data. A relation model of the environment, the overhead transmission line tower structure and the lightning protection facility is constructed by combining lightning current signals collected by a Rogowski coil, the facility vulnerability is evaluated, a dynamic and plastic lightning stroke risk scene model is constructed based on the analysis result of environmental factors and the structural vulnerability, and the real-time monitoring data and historical lightning stroke information are combined. Adjusting model parameters, establishing a cross-dimension feedback self-adjusting mechanism, adjusting a risk assessment result in real time, dynamically assessing the result according to a situation, generating a protection strategy, arranging and constructing lightning protection facilities in a high-risk area, optimizing resource allocation, and effectively coping with lightning stroke events under different risk levels.

A multiport current sensor is disclosed for measuring current. The sensor may include multiple CT or Rogowski coil segments or sections arranged in a closed loop configuration around a monitored phase line or other electrical conductor. An adjacent phase rejection circuit compares the magnitudes and / or phase angles of the voltage signals from the multiple coil segments. The adjacent phase rejection circuit may detect if a fault in an adjacent phase line or other electrical conductor is affecting the output signal of the current sensor by more than a threshold amount. The adjacent phase rejection circuit may additionally or alternatively indicate whether the measured values are valid for detecting a fault on the monitored phase line or other electrical conductor.

In the current transformer, a plurality of PCBs (printed circuit boards) are distributed on a magnetic iron core framework, welding spots, integrating resistors and damping resistors are welded on the PCBs, the welding spots are used for connecting winding wires, the winding wires are uniformly wound among the welding spots on the magnetic iron core framework according to the number of turns at intervals to form windings, and the winding wires are wound on the magnetic iron core framework. The number of spaced turns is associated with the damping resistance. According to the patch damping resistor type broadband self-integration Rogowski coil current transformer, the resonance phenomenon of the coil can be suppressed, and the bandwidth of the self-integration Rogowski coil current transformer is increased to a large extent.

The invention discloses a Rogowski coil current transformer and a current measurement system, and relates to the technical field of current measurement. The Rogowski coil current transformer comprises a Rogowski coil and a signal processing circuit; the differential signal is converted into a differential constant-current signal to be output based on a signal processing circuit; the signal processing circuit comprises an integral amplification module for performing integral amplification on the differential signal based on the integral amplification module; the first direct current component removing module is used for removing a direct current component in the voltage signal after integral amplification based on the first direct current component removing module; the signal adjusting module is used for realizing amplitude in-phase amplification and phase compensation; the single-ended to differential output module is used for generating symmetrical differential voltage signals based on the single-ended to differential output module; and the conversion module is used for converting the symmetrical differential voltage signal into a differential constant current signal and outputting the differential constant current signal based on the conversion module. And through the integral amplification module and the phase compensation module, the differential signal is accurately converted into the current signal, so that the current measurement result is more accurate.

The invention provides an electric energy quality on-line monitoring device and a cloud platform cooperation system, and relates to the technical field of electric energy quality management, and the device comprises a signal collection unit which obtains three-phase voltage and current signals in parallel through a Rogowski coil and a capacitive voltage divider; the event detection unit is used for synchronously executing harmonic spectrum analysis and transient event capture by adopting a parallel processing architecture realized by an FPGA (Field Programmable Gate Array); the edge processing unit is connected with the event detection unit, and is configured to encode the transient event features into a Gramer angle field image and compress steady state data into feature vectors; the multimode communication unit comprises a 4G / 5G wireless module and an optical fiber Ethernet interface; and the strategy execution interface outputs a treatment instruction to the compensation device through the D / A converter and the current loop. Through collaborative innovation of the device and the cloud platform, the power quality monitoring and treatment efficiency is remarkably improved.

The invention relates to an on-line monitoring device and system based on an alternating current arrester. The on-line monitoring device comprises a basic monitoring unit, an environment sensing unit, a relay unit, a control unit and a calibration unit. The basic monitoring unit comprises a Rogowski coil 1 for monitoring the leakage current of the lightning arrester and a Rogowski coil 2 for monitoring the impact current. And the relay unit is controlled by the control unit and controls the working states of the Rogowski coil I and the Rogowski coil II. The environment sensing unit is used for monitoring environment parameters around the lightning arrester, the control unit judges environment parameter error coefficients according to the environment parameters and then feeds back the environment parameter error coefficients to the calibration unit, and the calibration unit forcibly corrects monitoring results. The measuring range can be automatically switched, high-precision monitoring is achieved through the first Rogowski coil in the case of low current, the second Rogowski coil is automatically switched to conduct wide-range monitoring in the case of impact current, the two Rogowski coils do not affect each other, and the measuring device has the advantages of being low in energy consumption and high in precision. And the calibration unit forcibly corrects the monitoring result, so that the detection precision of the device at low temperature is improved.

The invention relates to a vertical magnetic field interference resistant inductor, an electric power meter and a manufacturing method thereof, the vertical magnetic field interference resistant inductor comprises a Rogowski coil and an annular vertical magnetic field counteracting coil located in the Rogowski coil, the Rogowski coil comprises an even number of self-adhesion hollow coils which are connected in series end to end, the wire diameter, the number of turns, the number of layers, the inner diameter and the outer diameter of each hollow coil are consistent, and the vertical magnetic field counteracting coil is located in the Rogowski coil. The Rogowski coils are arranged in the same horizontal plane and are symmetrically distributed on the same horizontal plane with a circle as the center, hole parts of the hollow coils jointly form an annular channel, the inning area of the vertical magnetic field offset coil is equal to the inning area defined by the Rogowski coils, and a pre-positioning support is arranged in the annular channel in a penetrating and matched mode. The vertical magnetic field counteracting coil is located at the center of the annular channel, and the Rogowski coil and the vertical magnetic field counteracting coil are provided with output ends. Therefore, the technical problem that small current detection is easily interfered by an external power frequency electromagnetic field is solved.

The invention relates to the technical field of distribution line state detection, in particular to a detection system for intelligently analyzing the state of a distribution line, which comprises a thermal imaging detection module, a current monitoring module, an identification module, a video monitoring module, a photographing recording module, a watermark adding module, a data analysis report module and a remote communication control module. The thermal imaging detection module is used for infrared acquisition and image processing; the current monitoring module is used for Rogowski coil detection and data analysis and transmission; the identification module is used for fault feature extraction and fault diagnosis. The detection system for intelligently analyzing the state of the distribution line has the advantages of real-time monitoring, automatic processing, intelligent diagnosis, remote monitoring and control, video monitoring and photographing recording, watermark adding, report generation and the like, the efficiency and accuracy of state detection of the distribution line can be remarkably improved, the operation and maintenance cost is reduced, and the system is suitable for popularization and application. And safe and stable operation of a power system is ensured.

The invention provides a non-contact voltage and current integrated measuring device for a crimping type power device. The non-contact voltage and current integrated measuring device comprises multiple layers of differential Rogowski coils, an adder and a differential circuit. Wherein the multi-layer differential Rogowski coil is provided with a plurality of stacked measuring units, the adjacent measuring units form a group, and the two measuring units in the group are stacked back to back. The measuring unit is provided with a signal layer and a loop layer; a C-shaped coil is arranged on the signal layer, and a C-shaped loop is arranged on the loop layer; one end of the C-shaped loop is connected with an outgoing line of the C-shaped coil, and the other end is connected with the adder and one input end of the differential circuit; the winding directions of the signal layer coils of the two inter-group measuring units are opposite. The device is simple in structure and low in cost, solves the problem of voltage and current device measurement and the interference problem of a traditional contact measurement method through the multi-layer differential Rogowski coil, improves the measurement accuracy and speed, reduces the risks of electric shock and equipment damage, and remarkably improves the operation safety.

The invention provides a flexible opening and closing type fixed magnetic shielding current measuring device and a measuring method. The measuring device comprises an opening and closing type shielding shell which is of an annular structure; the conductor clamping mechanism is arranged at a central hole position of the opening and closing type shielding shell; the flexible Rogowski coil is detachably arranged in an inner cavity of the opening and closing type shielding shell, and a coil clamping assembly is arranged in the inner cavity of the opening and closing type shielding shell. The influence of an external interference magnetic field on the measurement precision of the flexible Rogowski coil can be greatly weakened, the measured current can be ensured to vertically pass through the skeleton plane center of the Rogowski coil, the influence of the position deviation of the measured current on the measurement precision of the flexible Rogowski coil is effectively reduced, the installation and the disassembly are convenient, the use flexibility can be greatly improved, and the measurement precision of the flexible Rogowski coil is improved. The influence of the position deviation of the measured current and an external interference magnetic field on the measurement precision of the flexible Rogowski coil is reduced, and the stability and the flexibility of measurement are improved.

The invention provides a current distribution monitoring assembly of an integrated gate commutated thyristor. The current distribution monitoring assembly comprises two double-D Rogowski coil groups which are arranged in a crossed manner; wherein each D Rogowski coil group is composed of two coils which are wound reversely and connected in series, and the direction of a middle boundary of the two coils of one of the two double-D Rogowski coil groups is consistent with the current direction of the integrated gate commutated thyristor; the two ferrite shielding layers are respectively attached to the lower part of each double-D Rogowski coil assembly; and the Hall effect sensor is arranged on the ferrite shielding layer at the bottommost layer. The current distribution monitoring assembly of the integrated gate commutated thyristor provided by the embodiment of the invention has the advantages of small size, high compactness and wide measurement bandwidth.

The invention relates to an IGBT parallel current sharing control circuit and method for turn-off transient current change rate detection, and the circuit employs a PCB Rogowski coil probe to carry out the non-contact detection of the turn-off current change rate of a parallel device, thereby accurately judging the non-current sharing characteristic of the parallel device. The problem of integrated design of a traditional detection scheme in large-current and high-power-density application is effectively solved; meanwhile, by designing a current change rate peak holding circuit, the holding time of a peak signal is remarkably prolonged, and the performance requirement on the ADC sampling rate is greatly reduced; a reset branch is additionally arranged for the peak holding circuit, and the peak output value in the last period is zeroed in the turn-on transient state by using a driving signal, so that the charge accumulation effect is effectively eliminated, and the sampling precision of the system is guaranteed; the regulation and control part of each parallel branch only needs to be additionally provided with two passive elements including the control switch and the capacitor, current sharing control can be achieved by adjusting the access time of the bypass branch, the structure is simple, cost is low, and good popularization applicability is achieved.

The invention belongs to the technical field of smart buildings, and relates to a green energy-saving building energy consumption real-time monitoring and intelligent optimization system and method based on the Internet of Things, and the system comprises a sensing layer which comprises an environment sensor group which collects the temperature, humidity, illumination intensity and CO2 concentration; the non-intrusive electric energy monitoring module measures equipment current through a Rogowski coil, and the precision is + / -0.5%; the equipment state acquisition terminal is used for acquiring the frequency of an HVAC compressor and the state of a lighting switch; the network layer comprises a multi-protocol edge gateway which supports the conversion from ZigBee / LoRa / Modbus to an MQTT protocol; the block chain evidence storage module is used for generating an SHA-256 hash value for the energy consumption data and uploading the SHA-256 hash value to the chain; the platform layer comprises a digital twin engine which is used for generating an energy consumption three-dimensional thermodynamic diagram based on a BIM model; the optimization control core is composed of an LSTM load prediction unit and an NSGA-II multi-objective optimization unit. The energy efficiency leap of 12-18% comprehensive energy saving (far exceeding the average level of 5-8% in the industry) is realized through a technical chain of'accurate perception-intelligent decision-making-closed-loop control '.

A remotely operated circuit interrupter includes: primary separable contacts coupled to an operating mechanism and a thermal-magnetic trip device structured to interrupt current from flowing to loads by opening the primary separable contacts during a fault event; and a fault current tolerant secondary switching mechanism including secondary separable contacts coupled to the primary separable contacts in series, Rogowski coils, a di / dt measurement circuit, a secondary solenoid driver, the Rogowski coils structured to continuously sense a rate (di / dt) of change of load current, the di / dt measurement circuit structured to receive a signal including the sensed di / dt, determine that the sensed di / dt has reached or exceeded a threshold current rate of change, and output a fault signal to the secondary solenoid driver based on the determination, the secondary solenoid driver structured to actuate the solenoids to fully open the secondary separable contacts using arc voltages of the primary and secondary contacts.

The invention relates to a broadband electromagnetic current transformer suitable for a 10kV power distribution network intelligent fusion complete switch and a performance detection method of the broadband electromagnetic current transformer. The broadband electromagnetic current transformer comprises a primary side current transformer and a secondary side current transformer, the primary side current transformer comprises a shielding shell, an outgoing line and a magnetic core arranged in the shielding shell; the magnetic core comprises a framework, a metal ring belt and an enameled wire; an annular groove is formed in the shielding shell, and an annular cutting gap communicated with the annular groove is formed in the circumferential wall of the inner ring of the shielding shell; the secondary side current transformer comprises a first reference layer, a second signal layer, a third signal layer and a fourth reference layer; high-frequency transient information generated in the fault process can be effectively collected, the bandwidth range, the measurement precision and the sensitivity of the transformer are improved, the secondary side current transformer adopts a four-layer PCB design, and double constraints of high-frequency signal transmission on a winding in a traditional Rogowski coil are overcome. According to the performance detection method, any field actual waveform can be simulated and output for sensor performance test so as to control the factory performance of a switch.

The invention discloses a high-voltage electric pulse cracking coal rock stress shock wave monitoring device which comprises a high-voltage pulse capacitor, a voltage divider, a high-voltage pulse switch, a high-voltage pulse cracking generation chamber, a high-voltage probe, a Rogowski coil and an oscilloscope. A test piece is fixed in the high-pressure pulse cracking generation chamber, a circle of test piece clamping assembly corresponding to the test piece is arranged in the high-pressure pulse cracking generation chamber, needle-shaped electrodes are arranged on the two sides, not provided with the test piece clamping assembly, of the test piece, and a piezoelectric pressure sensor is arranged on the high-pressure pulse cracking generation chamber. The detection signal output ends of all the piezoelectric pressure sensors are connected with the pressure detection signal input end of the stress wave signal collector, and a Faraday cage used for covering the piezoelectric pressure sensors is arranged in the high-pressure pulse fracturing generation chamber. The propagation characteristics of the high-voltage electric pulse stress shock waves in the coal rock mass can be accurately and directly captured in real time, and accurate and reliable data support is provided for deep research on a high-voltage pulse electric crushing mechanism.

The invention relates to the technical field of motor insulation state monitoring, and discloses a motor winding turn-to-turn discharge monitoring method and device based on Rogowski coils. The high-pass integrator is matched to carry out integral operation on coil output signals in a centralized mode to obtain high-frequency discharge current data, then fault characteristic quantity is constructed based on the data, the fault position of the motor cable is determined, an independent monitoring module does not need to be configured for each phase of cable, and the single high-pass integrator can complete centralized processing of multi-coil signals. Not only is the use amount of core monitoring parts greatly reduced to reduce the monitoring cost, but also the hardware layout is remarkably simplified to save the installation space, and meanwhile, the data processing nodes are reduced to reduce processor resource occupation, and the problems of high monitoring cost, large space and resource consumption and low monitoring efficiency in the prior art are effectively solved.

The present invention provides an open-and-closed Rogowski coil and a current transformer, wherein the open-and-closed Rogowski coil comprises a coil frame, which is annular and comprises at least one air gap opening, and a coil, which is a spirally wound coil arranged around the coil frame, wherein the density of the coil adjacent to the air gap opening is greater than the density of the coil away from the air gap opening, and the number of turns is adjusted according to the structure of the open-and-closed Rogowski coil, and the coil adjacent to the air gap opening is increased in turns, so that the density of the coil adjacent to the air gap is greater than the density of the coil away from the air gap, thereby compensating for the lost magnetic flux, thereby improving the accuracy of the open-and-closed Rogowski coil in measuring current.

The invention discloses a distributed traveling wave distance measurement method, equipment and a storage medium. The system is composed of monitoring terminal equipment arranged along a power transmission line, an APN data transmission network and a central station system. The monitoring terminal acquires a traveling wave signal through a Rogowski coil and calibrates time through a GPS synchronous clock, and data is encrypted and then transmitted to the central station; the central station adopts a distributed cluster architecture, analyzes multi-manufacturer data through a unified equipment protocol, calculates a fault position by using a double-end positioning method in combination with a wave velocity self-learning technology, and identifies a fault type based on wave tail time characteristics. The method comprises the steps of monitoring point arrangement, data encryption transmission, waveform feature extraction, fault positioning, graded early warning and the like. According to the system and the method, the problems of poor compatibility, low positioning precision and low operation and maintenance efficiency of equipment of multiple manufacturers are solved, and high-precision positioning and intelligent diagnosis of power transmission line faults are realized.

An integrator direct current error elimination and low frequency noise reduction circuit based on Rogowski coils solves the technical problem of how to eliminate direct current errors in an integrator circuit composed of Rogowski coils, and adopts the technical scheme that the circuit comprises an integrating circuit composed of a first amplifier and an integrating capacitor, the in-phase end of the first amplifier is used as the current input end a of the Rogowski coil, and the key point is that a T-type network filter circuit is connected between the feedback output end b of the integrating circuit and the inverted input end of the first amplifier. The utility model has the advantages that due to the existence of the T-type network filter circuit, oscillation is avoided, feedback is taken from the tail end of the integral circuit, the direct current offset of the whole forward channel can be eliminated, the three-order high-pass filter function is realized, the maximum low-frequency noise is low, and the signal-to-noise ratio is improved.

The invention discloses a flexible DC converter valve DC support capacitor current on-line monitoring method and system, and the method comprises the steps: controlling a Rogowski coil to collect the operation data of a selected capacitor in a flexible DC converter valve in response to an external sampling starting instruction; sequentially performing amplification, filtering and abnormal value detection processing on the current waveform data to obtain to-be-corrected current data; based on a pre-constructed neural network model, performing correction processing on the to-be-corrected current data to obtain to-be-analyzed current data; analyzing the to-be-analyzed current data based on a big data analysis technology and a machine learning algorithm; and according to an analysis result, a generated current regulation and control instruction matched with the analysis result is sent to the selected capacitor. According to the method provided by the invention, the monitoring precision of the capacitor is improved.

The invention relates to a vertical magnetic field interference resistant inductor which comprises a Rogowski coil and a vertical magnetic field counteracting coil located on one side of the Rogowski coil and connected with the Rogowski coil, the Rogowski coil comprises a plurality of hollow coils connected end to end, and the wire diameter, the number of turns, the number of layers, the inner diameter and the outer diameter of each hollow coil are consistent. The number of the hollow coils is not less than 4 and is an even number, the hollow coils are used for being symmetrically distributed on the same horizontal plane with a circle as the center, and output ends are arranged on the Rogowski coil and the vertical magnetic field counteracting coil. Therefore, the technical problem that the current common Rogowski coil is easy to be interfered by an external power frequency electromagnetic field when being used for small current detection, so that the actual current cannot be normally reflected by a large measurement error is solved, and the application limitation of the current Rogowski coil is broken through.

The invention provides a power conversion device and a power generation system, the power conversion device comprises a power board and an arc detection board, and the arc detection board is vertically arranged on the surface of the power board. A first through hole in the arc detection plate penetrates through the arc detection plate in the thickness direction of the arc detection plate, and the Rogowski coil surrounds the first through hole and is laid on the arc detection plate. A power conversion circuit is arranged on the power board, a connecting wire between the power conversion circuit and the direct current input of the power conversion device comprises a U-shaped wire, the U-shaped wire penetrates through the first through hole in the thickness direction of the arc detection board, and the two sides of the U-shaped wire are located on the two sides of the arc detection board respectively. The Rogowski coil is used for sensing alternating current on the connecting wire and generating an arc sensing signal for arc fault detection of the power conversion device. According to the invention, the cost of the power conversion device is effectively reduced.

The utility model discloses a signal processing circuit for a Rogowski coil, and belongs to the field of intelligent power grids. The signal processing circuit used for the Rogowski coil has the characteristics of real-time measurement, fast response speed and wide current measurement range, and especially can ensure the metering precision under a small current working condition. The Rogowski coil converts a primary side current value into a current-to-time differential signal, the passive RC integrating circuit reduces the turning frequency of the differential signal, the low-pass filtering circuit effectively attenuates a high-frequency signal, the T-type integrating circuit integrates the differential signal to restore an original signal, and the blocking circuit filters and blocks the integrated signal. The adjustable proportion amplification circuit performs in-phase amplification on the integral signal and adjusts the amplitude of the output signal as required, and the anti-aliasing filter circuit filters the amplified integral signal and finally inputs the integral signal to the sampling chip for current metering.

The invention belongs to the technical field of porcelain insulator zero-value detection, and discloses a porcelain insulator zero-value detection device and a detection method thereof, and the device is used for portable rapid zero-value detection or zero-value detection for early defective insulators / partially degraded insulators. The portable rapid zero value detection device comprises an impulse voltage generator, an insulator unit and a measurement module, the output end of the impulse voltage generator is connected with the input end of the insulator unit, and the output end of the insulator unit is connected with the measurement module; the device for detecting the zero value of the early defective insulator / the partially degraded insulator comprises an impulse voltage generator, a Rogowski coil, an integrator and an oscilloscope, the Rogowski coil is arranged on a wire to be detected in a surrounding mode, the output end of the Rogowski coil is connected into the integrator, and the output end of the integrator is connected with the oscilloscope. The invention provides a porcelain insulator zero value detection method taking a high-frequency component as a criterion, and the method can achieve the quick and reliable detection of whether the value of the insulator is zero or not.

The invention provides a fast convergence Rogowski coil integrator under an electric energy metering chip, the electric energy metering chip comprises a Rogowski coil, an ADC module and an electric energy metering processing module which are connected in sequence, the integrator is a bilinear integrator and is arranged between the ADC module and the electric energy metering processing module in the electric energy metering chip, and the Rogowski coil integrator is connected with the Rogowski coil integrator. The processing module is used for processing a current path; wherein the current input into the electric energy metering core is subjected to differential processing through the Rogowski coil to obtain a current differential signal, the current differential signal is sampled through the ADC module and then is reduced into a current signal through the bilinear integrator, and the electric energy metering processing module is used for carrying out electric energy metering operation on the reduced current signal. The bilinear integrator can enable a current signal to gradually approach a stable value in a segmented manner by adjusting two constant coefficients so as to realize rapid convergence under high phase shift precision and realize anti-overflow under different metering bandwidths.

The utility model discloses a multipath lightning stroke current monitoring circuit and device, the monitoring circuit comprises at least one sampling circuit and a single-chip microcomputer, one end of each sampling circuit is externally connected with a Rogowski coil mutual inductor, and the other end of each sampling circuit is connected with the single-chip microcomputer through an A / D converter; the sampling circuit is used for receiving a differential voltage signal output by the Rogowski coil mutual inductor for collecting lightning current, performing sampling, secondary filtering and integral reduction on the differential voltage signal, and outputting a final sampling signal; wherein the sampling circuit comprises an acquisition circuit, a first-stage filter circuit, a voltage following circuit, an integrating circuit and a second-stage filter circuit which are connected in sequence. According to the utility model, multi-path lightning stroke current monitoring can be realized, monitoring objects are more, and installation is convenient and flexible.

The invention discloses a point location level lightning current monitoring device and method for a railway signal lightning protection branching cabinet, which are corresponding schemes, in the scheme, based on a laminated PCB Rogowski coil, the layout space can be saved, the electromagnetic compatibility can be enhanced, and the accurate measurement capability can be ensured; moreover, through a non-stationary signal adaptive processing algorithm, the time-frequency analysis performance can be improved, the real-time processing requirement can be met, and the high-frequency resonance characteristics in the lightning current waveform can be accurately extracted. In addition, through synchronous acquisition and processing of three paths of signals, full-dimension monitoring can be realized, and point-to-point fault attribution is realized.

The invention relates to the technical field of guide rail meter testing, in particular to a proportional operational amplifier circuit for simulating Rogowski coil signal output and a testing device, which comprises a current sampling loop for converting input current into voltage analog signal output, and a proportional amplification loop connected with the output end of the current sampling loop, and the analog module is used for amplifying an input voltage analog signal by an amplification coefficient K and then outputting the amplified voltage analog signal, and the amplification coefficient K is matched with the sensitivity coefficient S of the Rogowski coil to be simulated. Through the collaborative design of the high-precision current transformer and the proportional operational amplifier circuit, the primary side test current is reduced to below 50A, and meanwhile, a voltage signal which is equal to a Rogowski coil in proportion is accurately generated through the proportional operational amplifier circuit. According to the design scheme, the final test effect can be achieved by applying the current of 0.04-50A, the test environment is safer compared with the test environment with the large current of 500A, and the service life of the test bench body is protected.

The invention relates to an anti-electromagnetic interference Rogowski coil winding method and an anti-electromagnetic interference Rogowski coil thereof.The anti-electromagnetic interference Rogowski coil winding method comprises the following steps that an enameled wire is continuously wound to form a plurality of hollow coils which are connected with one another, and each hollow coil comprises single coil layers which are continuously wound on a coil jig and are arranged in order according to the wire diameter; after winding of each single coil layer is completed, the next single coil layer is reversely wound on the outer side, the adjacent single coil layers on the inner side and the outer side are arranged in order, the number of the single coil layers is an odd number, and the number of the single coil layers is larger than or equal to 3; continuously winding a next hollow coil on a next coil jig which is staggered with the coil jig up and down as well as front and back; the plurality of coil jigs are sequentially arranged in a step shape, the plurality of hollow coils are taken off from the coil jigs after being wound on the plurality of coil jigs, and automatic production is completed. Therefore, the capability of resisting external magnetic field interference can be better improved.