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.

Surge Generator

Surge 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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High Voltage Shunt Capacitor

High voltage shunt capacitors are used to improve the power factor in power frequency (50 or 60Hz) AC power system.

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AC Filter Capacitor

AC filter capacitor is mainly used together with filter reactor in power system which has harmonics of magnitude. AC filter capacitor can absorb high harmonics and compensate reactive power.

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DC Filter Capacitor

DC filter capacitor is mainly used to absorb the high harmonics and compensate reactive power in DC filter device.

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Impulse 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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Grading Capacitor

Grading capacitor is connected in parallel to the HV AC circuit breakers's fracture to ensure the balanced distribution of the voltage and reduce the amplitude of recovery voltage.

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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 Divider

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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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 Divider

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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Wechselspannungsprüfsystem

Wechselspannungsprüfsysteme in Transformatorbauweise werden u. a. für die Prüfung von Hochspannungserzeugnissen (z.B. Hochspannungskabel, Leistungstransformatoren, gasisolierte Schaltanlagen), GIS, bushing, Komponenten und Isolierwerkstoffe verwendet.

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Impulsspannungsgenerator

Impulsspannungsgenerator werden für Stoßspannungsprüfungen an Transformatoren, Kabeln, Gasisolierten Schaltanlagen (GIS), Ableitern und anderen Hochspannungsgeräten verwendet. Die Prüfsysteme erzeugen Blitzstoßspannungen (LI, 1.2/50 µs),abgeschnittene Blitzstoßspannungen (LIC, abgeschnitten in der Front, im Scheitel oder im Rücken) und Schaltstoßspannungen (SI, 250/2500 µs);

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Stoßspannungsprüfsystem

Impulsspannungsprüfsystem werden für Stoßspannungsprüfungen an Transformatoren, Kabeln, Gasisolierten Schaltanlagen (GIS), Ableitern und anderen Hochspannungsgeräten verwendet. Die Prüfsysteme erzeugen Blitzstoßspannungen (LI, 1.2/50 µs),abgeschnittene Blitzstoßspannungen (LIC, abgeschnitten in der Front, im Scheitel oder im Rücken) und Schaltstoßspannungen (SI, 250/2500 µs);

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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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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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Corona Rings and Shielded Parts

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 Rings for Surge Arrestors

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 Insulators

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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Combination Wave 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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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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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 Systems

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 System

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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Test Transformer

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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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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