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China, Chinese Variable Frequency Resonance Test System for Generator1 Industrial Products Supplier Manufacturer Details, price list catalog:
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Test InstrumentCable TesterResonance TestSeries Resonance Test Equipment
Wuhan UHV Power Technology Co., Ltd.
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Product Description Brief IntroductionThis device is special designed for AC voltage withstand test for 11kV/30MW hydroelectric generator. It is composed by frequency power source, excitation transformer, reactor, capacitance divider.The advantages of serial resonant system: 1.Need smaller power capacity. The power of the serial resonant system generate high voltage and high current by resonant reactor and measured capacitance, in the whole system, power source only provides the power consumption part of the system, so the required power is only 1/Q of the measured capacity.2.Lighter and smaller volume. Without the heavy power voltage regulating device and test transformer, and excited power is only 1/Q of the measured capacity. The weight and volume are only 1/10-1/30 of the common devices.3.Improve the output voltage waveform. Resonant power source is resonant filter circuit, which can improve the output voltage waveform distortion, get better sin wave, and effectively prevent the harmonic peak value breakdown the measured equipment.4.Prevent the high current to burn out the fault point, for the serial resonant; the circuit will be dissonant as soon as the insulation weakness of the measured device was broken down, the loop current fast decrease to the 1/Q of the normal measured current. But for the parallel resonant or test transformer to do voltage withstand test, the breakdown current , these two compare, short circuit current and breakdown current different in hundreds times. So the serial resonant system can easily find out the insulation weakness, and do not worry about the heavy short circuit current burn out the fault point.5.Without any recovery over-voltage. When the measured equipment was broken down, it lost the resonant conditions, high voltage immediately disappear, electric arc immediately burn out, and it is a long process to recover the voltage, easily to power off before it get to the flashover voltage another time, it is a long process, without any recovery over-voltage.Products features 1.The device with over-voltage, over-current, and system dissonant (flashover) protection functions.2.Single machine light in weight, less than 40kg, convenient for field test.3.With four working modes, convenient for customers to select, improve the measurement speed working mode: full automatically, manual control, auto tuning manual voltage boosting.4.Can store and print the test results, convenient for customers to identify and review.5.The scanning starting point can be set up randomly at rated range when the device auto scanning, the direction can be up or down, the LCD will show the scanning curve, convenient for customers to check if found the resonant point.6.Adopts DSP platform technology, convenient to add or reduce the functions and upgrade according customers' requirements, make the man-machine interface be more humanization.Technique parameters Rated output voltage≤0~50kV(AC effective value)Output frequency45~65HzResonate voltage waveformSine wave, distortion ≤1%Working modeFull power continuous working time: 5minQuality factor10~40Maximum measured capacity0.1Hz, instability<0.05%Power supply≤5000kVARated output voltage220Vor 380V±10%, frequency :50Hz±5%Serial product and application:ModelApplication(AC voltage withstand test for generator which voltage ≤20kV,measured frequency: 50Hz)Control cabinetreactorExcitation transformerDividerApplicationHTXZ-L-100/5010kW/220V50kV/1A:1 set10kW/5kV50kV/500pFGenerator 0.07~0.13uF10kV cable(300mm2)≤1.0km50kV/1A:1 setHTXZ-L-150/5015kW/380V50kV/1.5A:1 set15kW/5kVGenerator 0.13~0.2uF10kV cable(300mm2)≤1.5km50kV/1.5A:1 setHTXZ-L-225/5025kW/380V50kV/1.5A:2 sets25kW/5kVGenerator 0.2~0.27uF10kV cable(300mm2)≤2.5km50kV/1.5A:1 setHTXZ-L-350/5030kW/380V60kV/2A:2 sets30kW/5kVGenerator 0.27~0.33uF60kV/2A:1 setReference table for capacitance of common generator:CategoryGeneratorModelManufactureRated capacity MWRated voltage kVPhase capacitance μFThermoelectric generatorT2-12-2 126.30.1TQ-25-2 26.30.19TBC-30 306.30.2TB2-30-2 306.30.2TQN-50-2 5010.50.209TB-50-2 5010.50.26TB-60-2 6010.50.25TQN-100-2 10013.80.234WT23S-083AF3 300150.29TB-320-2 320200.3T264/640 600200.368QF-30-2 306.30.1QF-60-2 606.30.234QF-60-2 6010.50.33QFS-125-2Shanghai motor maker12513.80.08-0.12QFSN-200-2Harbin motor maker20015.750.19-0.21QFQS-200-2East motor maker20015.750.1928-.021QFS-300-2Shanghai motor maker300180.16-0.2QFSN-300-2Shanghai motor maker300180.18-0.2QFSN-600-2 600200.234ATB-2US GE352230.268TBB-200-2formerSoviet Union 20015.750.107TBB-500-2 500200.25TBB-320-2formerSoviet Union 320200.31TBB-800-2 800240.252-105*234US Westinghouse company 600200.250WT23E-138ABB600220.253synchronous condenserTT-15-8 156.60.108TT-30-6 3010.50.2 Note: make the solution according the measured equipment. Reference table for capacitance of common hydroelectric generator:CategoryParameters of the generatorRated capacity (MW)Rated voltage (kV)Phase capacitance (μF)Hydroelectric generator72.5~8510.50.694125~150 1.8~1.930015.751.7~2.540018.02~2.5600 2.1~2.5 Common problem1. Is your company a sales company or a manufacturer?Wuhan Huatian Electric Power Automation CO., LTD.is an industrial and trade enterprise, with its own factory, self-produced and self-sold. We were founded in 2004 and have fifteen years of production experience. Our company has reliable production lines, test rooms and R&D centers.2. Whether the goods are in stock, whether they can be customized, and how long the delivery time is.After the goods have been ordered, we can be made to order according to the special requirements of customers by using the latest technology. The delivery time is usually within 10 working days if there are no accidents.3. Is the quality guaranteed?In order to ensure quality, we use imported components in large quantities. After three times of quality inspection, the goods can be sent out, and the export is uniformly packed in non-fumigation wooden boxes.4. What are the after-sales terms?We offer free consulting service, one year warranty, and adopt various methods such as email communication, video calls, technology door-to-door, aiming to solve any after-sales problems in a timely manner.5. What are the cooperative countries or regions?Products have been successfully exported to the United States, Brazil, Australia, Russia, the Netherlands, Indonesia, Bangladesh, Iran, India, Saudi Arabia, Mongolia, Japan and other countries and regions. In the United States, India, Vietnam and other regions have cooperative distributors, can provide thoughtful services.Contact usWuhan Huatian Electric Power Automation CO., LTDAddress: T4, No. 1, High-tech 2 Road,East Lake High-tech Development Zone,WuhanZip code: 430074Tel:(+86)-27-8745 7960 / (+86)027-87993136 / 13808601259Fax: (+86)-27-8799 3136
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