Company profile

HEMEI provides Current Transformer, Switch Mode Power Supply and PLC Coupling Transformer. If you have any requirements or queries about our products, you can contact us at any time.

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Effective Shielding Emi Electromagnetic Shielding Materials Electromagnetic Shielding Cover

Electromagnetic shielding is the principle of metal isolation to control electromagnetic interference, from one area to another area of induction and radiation propagation method.

High AC Voltage Magnetic Coupling Electrical Coupling Carrier PLC Coupling Transformer

Coupling transformer, that is, the radio line is often used as a coupling transformer between the poles. For example, the center periphery, input transformer and output transformer of a radio belong to this category. The role of coupling transformer is multi-faceted, it can also be used to achieve impedance matching.

UL CE 5A Split Core CT Harvesting Energy Current Transformer

Products can be customised Designed with advanced technology and engineering expertise, our harvesting energy CT products ensure accurate monitoring and extraction of current.

High Voltage Inductance Choke Coil Common Mode Choke Coil Choke Coil Inductor

Choke coil, also known as inductor coil, reactance coil or impedance coil, is an electronic component that plays an important role in controlling the magnitude and phase of current in an AC circuit. It can isolate high frequency currents, generate inertial potentials, and limit the passage of current, thus realizing the control of current in the circuit.

1J85 Irregularly Shaped Permalloy Cores Silicon Cut Core Permalloy Alloy Punched Sheets

Products can be customised Laminated thermal alloy core with stamping process, can be adapted to a variety of transformer harvesting energy needs, sample size is the conventional size, the external dimensions can be arbitrarily customized.

DC AC Switch Mode Power Supply ct Power Supply Companies Power Supply for CT

D.C. to D.C. converters and D.C. to A.C. Converters belong to the category of Switched Mode Power Supplies (SMPS). The various types of voltage regulators, used in Linear Power Supplies (LPS), fall in the category of dissipative regulator, as they have a voltage control element usually transistor or zener diode which dissipates power equal to the voltage difference between an unregulated input voltage and a fixed supply voltage multiplied by the current flowing through it. The switching regulator acts as a continuously variable power converter and hence its efficiency is negligibly affected by the voltage difference. Hence the switching regulator is also known as ‘non-dissipative regulator’.

500mA UL Leakage ct AC Monitoring CT Clamp on Current Transformer

Products can be customised Clamp current transformer current-carrying wire position correlation variance is small, anti-interference ability is strong, such as it will be connected to the high accuracy of the power meter, ammeter, phasor meter, can be more accurate on-site inspection, both safe and can improve work efficiency.

Non-Oriented Electrical Steel Power Extraction Silicon Steel Core Current Transformer Core

The company specialises in the production of soft magnetic materials such as silicon steel sheet, pomo alloy, amorphous, ultra-microcrystalline, etc. Transformer cores, coiled cores The types of cores include toroidal cores, R-type cores, O-type cores, C-type cores, super-silicon steel cores, electric power coiled cores and shaped cores.

60mm Energy Meter Management Energy Monitoring Split Core Current Transformer

Can be customised for various ratios, high frequency, precision and other special requirements.

High Effect Current Transformer Extracting Electricity Energy Harvesting Energy Current Transformer

Products can be customised Our current transformers measure and extract electrical energy to power accessories such as sensors.

Cable Underground Branch Power Supply CT Harvesting Energy Current Transformer

Products can be customised The split harvesting energy current transformer is easy to install and replace, and can provide power to other components.

10A Silicon Core CT Use for Underground Mines Harvesting Energy Current Transformer

Products can be customised The harvesting energy current transformer can be directly mounted in the outdoor exposed, widely used in current measurement, and can generate electrical energy through the wire current induction.

160mm Thick Cable Self Powered Current Transducer Harvesting Energy Current Transformer

Products can be customised The harvesting energy current transformers are suitable for use in buried cables and utilise the principle of electromagnetic induction, whereby the magnetic field generated by the current in the conductor is induced through the toroidal coil to produce electrical energy.

Harvesting Energy Current Transformer Self Powered Current Transducer manufacturer OEM ODM

Products can be customised The harvesting energy current transformers can be installed outdoors directly exposed, measuring the current and converting the conductor current into electrical energy through electromagnetic induction, providing energy for other components.

40mm 600A Customised Toroidal Split CT Split Core Current Transformer

Split-core current transformers are designed for quick and easy installation.The CT's have an internal precision load resistor on the secondary winding that provides a safe, low voltage output and allows the secondary winding to be safely opened.

Epoxy Resin Clip Transformers Clamp Type ct Coil Clamp on Current Transformer

Products can be customised Clamp-on current transformers with Permalloy cores for high-precision measurements are stable and reliable for long-term operation.

5V-5000V Grain-Oriented Electrical Steel Current Transformer Silicon Steel Core

The company specialises in the production of soft magnetic materials such as silicon steel sheet, permalloy, amorphous, ultra-microcrystalline, etc. Transformer cores, coiled cores The types of cores include toroidal cores, R-type cores, O-type cores, C-type cores, super-silicon steel cores, electric power coiled cores and shaped cores.

Soft Iron Core Energy Harvesting Transformer 1J85 Permalloy Current Transformer Core

Permalloy refers to an iron-nickel alloy with a wide range of nickel content, ranging from 35% to 90%. The biggest feature of Permalloy is its high magnetic permeability in weak magnetic fields. Their saturation magnetic induction intensity is generally between 0.6-1.0T.

High Permeability Transformer Soft Magnetic Core Material Current Transformer Core Permalloy

Permalloy can be divided into 4 categories according to composition: 35%~40% Ni-Fe alloy, 45%~50% Ni-Fe alloy, 50%~65% Ni-Fe alloy and 70%~81% Ni-Fe alloy . Each type can be made into materials with circular hysteresis loop, rectangular hysteresis loop or flat hysteresis loop.

Good Price High Permeability Nanocrystalline Materials Current Transformer Nanocrystalline Core

Nanocrystalline materials are one of the materials with the highest magnetic permeability, high saturation magnetic induction strength, low iron loss, and a new generation of green, low-carbon and environmentally friendly soft magnetic materials.

Low Iron Loss Toroidal Current Transformer Nanocrystalline Core Nanocrystalline Materials

Nanocrystallline have a unique disordered structure and exhibit extremely excellent soft magnetic properties, such as low coercivity, low loss, etc. They are widely used in all kinds of magnetic devices for power electronics, and have significant energy-saving and environmental protection advantages.

Custimised Current Transformer Ratios 5A Coil Winding Transformer Current Transformer Coils

Products can be customised Open-close installation current transformer suitable for power collection and power detection.

10W Capacitor Power Transformer Energy Extraction Capacitor Transformer Manufacturer

Products can be customised Capacitor transformer, high voltage transformer accessories, the picture size is the regular size, the external dimensions can be customized.

High Voltage Protection Sensors Long Life Sensor Current Sensor Voltage Sensor

Products can be customised Zero sequence, phase sequence integration of electronic voltage sensor is a new type of high-voltage zero sequence protection sensor, the main application for the inflatable ring network cabinet.

Switchgear Accurate Temperature Sensors Smart Electrical Sensors Wireless Temperature Sensors

Wireless temperature sensor has been developed in compliance with Specification for Wireless Temperature Measuring equipment, It is suitable for 3-35kV indoor switchgears, including built-in switchgears, handcart switchgears, fixed switchgears and loop-net switchgears. It is also suitable for 0.4kV low-voltage switchgears such as fixed switchgears and drawer switchgears.

High Silicon Steel Permeability Current Transformer Cores Silicon Electrical Steel Core Transformer

Various sizes of toroidal cores are widely used in electronic equipment such as 50Hz, 400Hz transformers, inductors, chokes, chokes and other electromagnetic components.

Low Iron loss Ferronickel Iron Nickel Alloy Current Transformer Core Permalloy Core

Permalloys often refer to iron-nickel alloys with a nickel content in the range of 30 to 90%. It is a very widely used soft magnetic alloy. The saturation magnetic induction strength is slightly lower than that of silicon steel, but the permeability is much higher than that of silicon steel, and the iron loss is also lower than that of silicon steel, making it a very good core material.

Shaped Irregular Cores C-type Silicon Core ED-type Core Permalloy Alloy Punched Sheets

Products can be customised Shaped non-circular silicon steel cores are available in C-type and DE-type, which are customized according to performance requirements and can be adapted to a wide range of environmental use requirements.

1:3000 Tunrns Ration Split Core Current Transformer Coil Current Transformer Coils

Products can be customised Utilizing the principle of electromagnetic induction, the magnetic field generated by the wire current induces electrical energy through the magnetic ring coil, the magnetic ring coil adopts the open and close structure, which is directly stuck on the cable conductor, and the output of the coil outputs a regulated DC power supply through AC/DC conversion.

5V DCAC SMPS 12V Power Supply for CT Switch Mode Power Supply Transformer

The switch mode power supply (SMPS) of the self-powered current transformer has a strong adaptability to transmission line current variations, and can achieve stable power output within the range of normal cable current variations.

CE Certification Permalloy Core Current Transformer Split Harvesting Energy Current Transformer Self-Powered

Products can be customised Current transformers for current measurement and inductive power supply, customised with silicon steel or permalloy cores.

Silicon Steel Core Current Transformer Split permalloy Self Powered Current Transducer Factory

Products can be customised The self-powered current transformers can be installed outdoors directly exposed, measuring the current and converting the conductor current into electrical energy through electromagnetic induction, providing energy for other components.

Good Price High Permeability Current Transformer Quick Installion Split Core Current Transformer

The split core current transformer are designed for fast and easy installation.The CTs are ideal for installation on existing electrical cables by clamping on the conductor.This method permits a safer,easy and portable current measurement.An internal precision burden resistor across the secondary winding of the CT provides a safe low voltage output and permits safe opening of the secondary.

Magnetic Shielding Shells Electromagnetic Shielding Materials Electromagnetic Shielding Box

Hemei Electronics has perfect magnetic shielding technology, our magnetic shielding box has both electric and magnetic shielding for radiated electromagnetic fields.

Compensated PC Power Supply Mn Zn Isolation Coupler Radio Cassette Player PLC Coupling Transformer

Power Line Broadband Carrier Signal Coupling and Isolation Technology Solution

Customisable Soft Magnetic Materials Ring Silicon Steel Core CT Current Transformer Core

The silicon steel core are suitable for the application in weak magnetic field, can be used for manufacturing high sensitivity and small power transformer, low power magnetic amplifier, relay, head of magnetic recording device, zero sequence current transformer, power converter, precision current transformer, magnetic amplifier, power transformer, choke, pulse transformer, change polarity pulse transformer, DC voltage converter, magnetic modulator, constant inductance element, unipolar pulse transformer, magnetic shielding, and so on.

Iron Nickel Alloy Permalloy Transformer Ring Power Supply Ferronickel Current Transformer Core

China's Permalloy grade is 1JXX, where J means "precision alloy", "1" means soft magnetic, followed by a number for the serial number, usually indicates the nickel content of the alloy. For example, 1J50, 1J851 and so on. Perm alloy has high permeability, so it is often used in the core of medium and high frequency transformers or devices with strict requirements for sensitivity, such as high frequency (tens of kHz) switching power transformers, precision transformers, leakage switching inductors, magnetic shielding, yokes and so on.

Soft Magnetic Materials Current Transformer Amorphous Materials Nanocrystalline Transformer Core

Amorphous alloy current transformer uses amorphous alloy material as the core material, which better solves the problems existing in the traditional current transformer. Amorphous alloy has the advantages of low hysteresis, low loss and high saturation magnetic induction strength, which can effectively improve the measurement accuracy. In addition, amorphous alloy current transformer has the characteristics of small size, light weight, flexible installation, etc., which is convenient for the installation and use of equipment.

Good Price DC Split Core Current Sensor Current Transformer Producer Split Core Current Transformer

Hemei Electronics is a domestic manufacturer specializing in the research, design and production of power supply current transformers, split core current transformers, clamp-type current transformers, high-precision current transformers and miniature voltage transformers. Measures AC current from 1A to 5000A with outputs of 0.333V, mA, 1A and 5A.

Current Transformer Cut Cores Choke Cut Cores Permalloy Alloy Punched Sheets Cut Cores Manufacturers

Products can be customised Magnetic Metals tape wound cut core manufacturing processes are designed to produce transformer cores having the lowest possible losses and magnetizing currents. Where required, special selection of steel is made to meet exacting specifications for very low loss, high pulse permeability, etc. As a result, the assembled cores exhibit exceptionally low hum and low exciting current.

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