Products

We are specialized in manufacturing different kinds of HV test equipment, such as DC HV generators, impulse voltage generators, impulse current generators, combination wave generator, PD free AC test systems, AC resonant systems, cable testing systems, control and measurement systems, etc.

Dry Impulse Capacitor

The impulse capacitors are mainly used in the pulse power, electromagnetic weapons, oscillation circuit, damped oscillating current and other impulse devices. The impulse capacitors are designed for indoor usage. They are dry type and the filler is Polyurethane.

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Instrument Transformer Characteristic Tester

JYH-B instrument transformer characteristic tester can measure the turns ratio, polarity and volt-ampere characteristics of the current transformers and voltage transformers. It has large power regulating transformer, step-up transformer and current-up device inside. The tester is widely used in the routine test of voltage and current transformers.

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DC Resistance Meters-YR-20W type

YR-20W type DC resistance meter is applicable to measure the DC resistance of power and distribution transformers, current transformers upto 35kV. It can also be used during temperature rise test. It is especially designed for the transformers whose resistances of HV winding and LV windings have a big difference.

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DC resistance test instruments -YR type

YR type DC resistance test instrument is applicable to measure the DC resistance of power and distribution transformers, current transformers with high resistance values.

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Transformer Resistance Test Instrument-YRD/YRE type

YRD and YRE type transformer resistance test instrument is applicable to measure the DC resistance of power and distribution transformers, current transformers upto 240MVA. It can also be used during temperature rise test.

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DC resistance test instrument -YRC type

YRC type DC resistance test instrument is applicable to measure the DC resistance of power and distribution transformers, current transformers with rated voltage upto 110kV.

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Transformer Turns Ratio Meter-YT-F

YT-F transformer turns ration meter is suitable for the turns ratio measurement of power transformers upto 1000kV, current transformers, voltage transformers and Z type transformers.

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DC Resistance Tester-KRI9310

KRI9310 DC resistance tester is portable and automatic tester, which is applicable for the inductive test objects (such as distribution transformers, instrument transformers, reactors, etc) and the resistive test objects (such as contactors of switches, contactors of relays, wires, etc).

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YT-A Transformer Turns Ratio Meter

YT-A transformer turns ration meter is suitable for the turns ratio measurement of power transformers upto 1000kV, current transformers, voltage transformers and Z type transformers. It has L-N voltage measurement, great convenience for wiring connection, fast test speed and high accuracy.

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Impulse Current Test System

SP type impulse current test system can generate 8/20μs or 10/350μs impulse current waveforms. The systems can be used to test SPD, lightning rod and other lightning protection devices.

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DC Voltage Divider

DC voltage divider is a resistive voltage divider for the measurement of HVDC power source or DC transmission.

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Impulse Voltage Dividers

Impulse voltage divider is used to measure high voltage full and tail chopped lightning and full switching impulses. Provided with an adequate additional secondary part, it can also be used for alternating voltage measurements.
It has wheels at the bottom for easy movement and corona rings at the top.

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Induced Regulating Transformer

This series of 3 phase regulating transformer is applicable for the testing of transformers or motors upto 10kV. Induced regulating transformer is developed for the no-load, on-load test of transformers.

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Regulating Transformer

This series of regulating transformer can regulate the output voltage steplessly, smoothly and continuously on load. As it has low impedance voltage and low waveform distortion ratio, it is widely used as the power source for the testing of motors, transformers and switchgears. In addition, it can also be used as one component of rectifier device, DC speed adjustment, communication device and medical instrument.

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20kV 10kA combination wave generator

Surge generator (combination wave generator) can be used to generate impulse of exponential shapes to perform high energy surge tests. The system can output 8/20μs, 10/350μs, 10/700μs, 5/300μs according to the customer's requirement.

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Dry Type AC and DC Test Transformer

This AC test transformer adopts advanced new technology of coil winding, epoxy vacuum pouring and CD-type iron core, which obviously reduce weight and volume, improve insulating strength and humidity resistance level.
The transformers have light weight, small volume, beautiful appearance, stable performance and convenient operation, which are especially suitable for onsite operation. The transformers are applicable for the power systems and all power users to detect on site the insulating performance test of all electrical equipment. The transformers can be used as the perfect high voltage power sources of all appliance's voltage system.

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Voltage Divider

Voltage divider has the below different kinds:
1.impulse voltage divider for impulse measurement upto 4000kV;
2.resistive voltage divider for DC measurement;
3.capacitive voltage divider used for AC measurement;
4.capacitive and resistive voltage divider for AC and DC measurement

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Impulse Voltage Test System

Impulse voltage test system can be used to generate impulse voltages simulating lightning impulse (1.2±30%/50±20%μs), chopped lightning impulse (chopped time between 2~6μs to test power transformers, instrument /voltage transformers and bushings), switching impulse (250±10%/2500±10% μs) and steep front waveforms (to test glass insulator, composite insulators or ceramic insulators) .

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1 channel Partial Discharge Detector

Partial discharge detector is suitable for the online partial discharge measurement of electrical apparatus, such as surge arresters, insulators, power transformers, generators, CT/VT, GIS, capacitors, power cables and switchgears. There are 3 models,JXFE-2003, JXFD-2010 and JXFD-2016.

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Aluminum Screen Assembly

We can make different kinds of aluminum screens.
We can do custom made as per the customer's drawings.

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Corona Ring and Shielded Part

We can manufacture different kinds of corona rings or shielded parts.
You are welcome to send us the drawings for a quotation.
We can do custome made.

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Corona Ring for Surge Arrestor

The corona rings are used together with the surge arresters.
You are welcome to send us the drawings for a quotation.
We can do custome made.

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Corona Rings for Insulator

The corona rings are used together with the insulators.
You are welcome to send us the drawings for a quotation.
We can do custome made.

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HV DC Generator

DC generator is used to output DC at power frequency, 50Hz or 60Hz.
It can test the surge arresters and other insulation materials.

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Surge Generator

Combination wave generator can be used to generate impulse of exponential shapes to perform high energy surge tests.
The system can output combination wave (open circuit voltage 1.2/50μs & short circuit current 8/20μs).
With additional impulse modules, it can output 10/350μs and 8/20μs.

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Aluminum Shielded Tubes

Aluminum Shielded Tubes are widely used in the high voltage test in the HV test lab.
We can do custom made as per the customer's dimensional drawings.

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Corona Rings

We can make different kinds of corona rings.
We can do custom made as per the customer's drawings.

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AC Test Transformer

AC test transformer is applicable for the AC voltage withstand test and partial discharge test of different insulation materials and electrical apparatus. They are widely used in the electrical apparatus manufacturers, electric power department, research institute and universities. The possibility of stacking several transformers allows reaching very high voltages by keeping a reasonable floor space.

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Loop Resistance Test Meter

Loop resistance testing meter is suitable for the contact resistance measurement of HV switchgears and circuit breakers. It can also measure the primary resistance of the current transformers.

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Oil Dielectric Tester

YY6611 oil dielectric tester is applicable for the oil dielectric test for the insulating liquids (oil) in transformers, reactors, bushings, switchgears and capacitors. The test device adopts perfect EMC design, which avoids the crash fault during test.

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Automatic Capacitance & Tan Delta Tester

JXJS-10 automatic capacitance & tan delta tester has bridge, variable frequency converter, AC test transformer and standard capacitor inside. It has tunable frequency and anti-interference function.

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Resistor for Impulse Generator,AC test transformer

Wave shaping resistors for LI, SI and LIC of impulse voltage generators;
Wave shaping resistors for impulse current generators;
Charging resistors and protective resistors for AC test systems.
We can do custom made.

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HV Compensation Reactor

The compensation reactor can be used as compensation when testing MV capacitors. There is one test during which reactor (when 2 pcs JXBK-736.5/17 reactors are connected in series) is subjected to voltage lower than rated for 1.5 minutes and without interruption voltage is raised up to 54 kV in duration of 300 ms. This is repeated 60 times without interruption. Inductance must not change at 54 kV.
The compensation reactor can be used indoor.

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Impulse Current Generator

SA type impulse current generator can generate different types lightning impulse current shapes such as 4/10μs, 8/20μs, 1<20μs, 30/80μs, 60/100μs , long duration current according to IEC 60099-4. Modifications can be applied according to the request of our customers.
This type of test system is especially to test the metal oxide surge arresters.

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Variable Frequency AC Resonant Test System

Variable frequency AC resonant test systems are mainly used for AC withstand voltage test of large capacitive test objects on site. The test objects include SF6 circuit breakers, GIS, power cables, tec.
With suitable tuning capacitor, the frequency range can be from 20Hz to 300Hz. The AC resonant test systems are applicable for partial discharge test of instrument transformers, coupling capacitors and metal oxide surge arresters with rated voltage under 1000kV.

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Series Resonant Test Systems

Series Resonant Test Systems with variable inductance and module type are used for factory testing of medium and high voltage cables, power transformers, bushings, high voltage capacitors, generators, arresters and high voltage accessories. They include stackable modules that can be used to test a wide range of products. The systems can be expandable to cover future test requirements that may require higher voltage and power levels.

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AC Resonant Test System

AC resonant test system with variable inductance and metal tank type is used for factory testing of medium and high voltage cables, high voltage capacitors, generators, and motors. They use the resonance between the capacitive test object and the inductive HV reactor of the test system to generate a continuous sinusoidal high voltage.

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DC Thermal Stability Tester for SPD

The thermal stability tester is applicable for the thermal stability test of SPDs. It is for indoor operation. One DC power source with a constant current between 2mA ~5A is applied on the SPD. The current through the SPD and the surface temperature of the SPD are continuously monitored to check if it reaches thermal equilibrium, and the disconnectors act.

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AC Thermal Stability Tester

The thermal stability tester is applicable for the thermal stability test of SPDs. It is for indoor operation. One frequency AC power source with a constant current between 2mA ~5A is applied on the SPD. The current through the SPD and the surface temperature of the SPD are continuously monitored to check if it reaches thermal equilibrium, and the disconnectors act.

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Impulse Current Test System with Crowbar

The C type impulse current test systems with crowbar are sophisticatedly designed to generate impulse current of exponential shapes. The system can be designed in various ways for meeting customers’ requirements. The test system is applicable in testing of SPD, lightning protection components (MOV or air gap), lightning rod and aircraft device.

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Steep Wave Generator Unit

Steep waveform generator units are used to generate the steep wave front waveform. They comprises of one steep waveform generator gap unit and resistive voltage divider.
The gap unit consists of sphere gaps, transmission gear, capacitors and corona rings, which are mounted on the rectangular metal base.

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Multiple Chopping Gap

The SXJB multiple chopping gap can be used for chopping of lightning impulse voltages between 20 kV and 3600 kV. The chopping can be realized at the front or at the tail of the impulse.

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High Voltage Shunt Capacitor

High voltage shunt capacitors are used to improve the power factor in the AC power system (50Hz or 60Hz) and increase the quality of the electric network. They are in full line with GB/T 11024.1 and DL/T 840 standards.

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5kA 10/350μs Surge Generator

The SXIC5B surge generator can generate impulse current ( upto 5kA 10/350μs) for testing of Lightning Rod. The surge generator is designed for indoor use.

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AC Resonant Test System with Module Type

AC resonant test systems with variable inductance and module type are used for factory testing of medium and high voltage cables, power transformers, bushings, high voltage capacitors, generators, arresters and high voltage accessories. They include stackable modules that can be used to test a wide range of products. The systems can be expandable to cover future test requirements that may require higher voltage and power levels.

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Impulse Capacitor HV capacitor

Impulse capacitors are widely used as the power energy for the high voltage and high current devices, such as impulse current generator, impulse voltage generator, long duration impulse current generator, repetition impulse generator, oscillation circuit test system, pulse power, etc.

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Universal Voltage Divider

Universal voltage divider can be used for measurement of AC voltage, DC voltage ,lightning impulse and switching impulse.

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AC Voltage Dividers

AC voltage divider is capacitive voltage divider for AC measurement.
It can also be used as coupling capacitor for partial discharge measurement.

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Impulse Voltage Generator

Impulse voltage generator can be used to generate impulse voltages simulating lightning impulse (1.2±30%/50±20%μs), chopped lightning impulse (chopped time between 2~6μs to test power transformers, instrument /voltage transformers and bushings), switching impulse (250±10%/2500±10% μs) and steep front waveforms (to test glass insulator, composite insulators or ceramic insulators) .

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30kV 15kA surge generator

Surge generator (combination wave generator) can be used to generate impulse of exponential shapes to perform high energy surge tests. The system can output 8/20μs, 10/350μs, 10/700μs, 5/300μs according to the customer's requirement.

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4-channel Partial Discharge Detector

Partial discharge detector is suitable for the online partial discharge measurement of electrical apparatus, such as surge arresters, insulators, power transformers, generators, CT/VT, GIS, capacitors, power cables and switchgears. There are 3 models,JXFE-2003, JXFD-2010 and JXFD-2010S.

Technical Data of JXFD-2010S
1) Measuring Channels: 4 Channels;
2) The capacitance range of the test object 6pF--250μF;
3) Test precision: 0.1pC;
4) Sample precision: 12bit;Sample Rate : 20M/S;
5) Time window: You can select the phase dynamically, amplify the time window dynamically.

6) Filter frequency band:
(a) On low frequency 3dB, fL: 10, 20, 40 KHz optional;
(b) On high frequency 3dB, fH: 80, 200, 300 KHz optional, fL and fH can be freely combined to form any filter band .
7) Data store and display. It can print and generate standard test report.
8) AC220V, Frequency 50Hz, Power 300W.

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2 channels Partial Discharge Detector

Partial discharge detector is suitable for the online partial discharge measurement of electrical apparatus, such as surge arresters, insulators, power transformers, generators, CT/VT, GIS, capacitors, power cables and switchgears.

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