Power Hv Catalogue

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The AC test transformer are especially designed for testing high voltage products and components, such as cables, power transformers, gas-insulated switchgears, bushings and arresters. It is also suitable to test insulation materials. They are used to generate testing high voltage and function as part of the complete system. These systems are particularly suited for tests requiring stable voltage even if the load changes under voltage (corona, wet & pollution tests) or when the load is inductive (inductive voltage transformers). The AC test transformer can be either in insulation cylinder type with metallic cover and base or metal tank. The insulation cylinder modular test transformers can be stacked to connect in series or parallel to get larger voltage or current to extend its application range.

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Heat cycling test systems are used to test the thermal stability of equipment and components. The test system induces a current in the test object causing it to heat up. The system can perform the heat cycle testing for power cables type test and pre-qualification test according to IEC 60840, and IEC 62067 etc. Based on pre-qualification test needs, test system is divided into two parts: test sample loop and simulation temperature loop Applications For testing cables, generator stators, switching cells Short- term and long-term testing

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DC test systems are used to test components and complete systems found in electrical power supply systems and operating on DC voltage. POWERHV DC voltage test systems fulfill the requirements of IEC 60060-1. The DC voltage test systems can be equipped with polarity reversal. Applications High-voltage DC testing for transformers, cables, bushings, switchgears, etc. Wet and pollution testing DC current measurements at high-voltage potential For use indoors and outdoors or modular system for onsite testing For test and research of DC transmission line corona, radio interference, pollution flashover.

DC High Voltage Test System

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CJDY Series Impulse voltage test systems are used for impulse voltage testing of transformers, cables, gas-insulated switchgears (GIS), arresters, and other high-voltage devices. The test systems generate lightning impulse voltage (LI, 1.2/50 µs), chopping lightning impulse voltages (LIC, front time 1.2 µs, front, crest or tail chopped), and switching impulse voltage (SI, 250/2500 µs) in accordance with IEC 60060-1; as well as IEC 60076-3 for transformers, and IEC 62067, 60840 und 60502-1 for cables). Impulse voltage test systems are available for factory testing in three product lines (E, V, and H).

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Testing of certain apparatus requires much high voltage or current that a straight AC test system is not sufficient. Thus resonant test reactor with a variable core is needed. The main advantage of such test systems is lower input power and larger output power. The resonant test system is designed to compensate capacitance in the testing circuit precisely by tuning inductance of the test system. The natural resonance frequency of the test system matches feed-in mains, usually 50/60Hz. When the test system gets in resonance, it generates continuous testing high voltage. AC resonant test system is used for factory testing of middle, high and ultra-high voltage cables, capacitors, generators, motors, power transformers and gas-insulated switchgears. The resonant test systems can be either in insulation cylinder type or metal tank. Insulation cylinder reactors are in module and can be stacked to connect in series parallel to get much higher voltage or current. Additional voltage taps are possible for metal tank reactors. The output voltage is fed out through the tap-changers by HV bushings. This kind of reactors extend application range, and satisfy testing for cables of various voltage class.

AC Resonant Test System

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YangZhou Power Electric Co., Ltd. is the subsidiary company of the Yangzhou Xinyuan Electric, Co., Ltd which is the specialized high tech Company in China. Company has the ability to produce complete set of high voltage, high-capacity testing equipment. It has participated in national significant electric item for many times. We have passed ISO9001:2000 Quality Management System Certification. And up to now, we have 7-year professional producing experience. Company has invited the well-known industry experts and university such as Shanghai Jiaotong University , Xi\'an Jiaotong University, Chongqing University, Wuhan High Voltage Research Institute, engaged in or participate in technology research and empolder for the super high-voltage test equipment, participated in many major national super high-voltage research and development projects ,has make a significant contribution for the construct of our national super high-voltage . The company\'s total investment is 20 million RMB, covers an area of 24,000 square meters, has 128 workers, 48 professionals & technical personnel , including 28 senior professional and technical personnel, also employ the well–known professors and experts from Shanghai Jiaotong University, Wuhan High Voltage Research Institute , engage for the technological development and power transmission industry .

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