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High Accuracy Thermal Generator Test Equipment / Ac High Voltage Tester Low Noise

High Accuracy Thermal Generator Test Equipment / Ac High Voltage Tester Low Noise

High Accuracy Thermal Generator Test Equipment / Ac High Voltage Tester Low Noise
High Accuracy Thermal Generator Test Equipment / Ac High Voltage Tester Low Noise

Large Image :  High Accuracy Thermal Generator Test Equipment / Ac High Voltage Tester Low Noise Get Best Price

Product Details:
Place of Origin: CHINA
Brand Name: Fanke High-voltage
Certification: ISO9001
Model Number: CHX-L-350KVA/50KV
Payment & Shipping Terms:
Minimum Order Quantity: One unit
Price: Negotiable
Packaging Details: Export Standard Wooden Case With Fumigation Free
Delivery Time: 35~45 work days
Payment Terms: L/C, T/T
Supply Ability: 5units/2months
Detailed Product Description
Usage: Thermal Generator Testing Machine Test Item: AC Hipot Test And Partial Discharge Test
Test Voltage: No More Than 50KV Test Current: No More Than 7A
Test Frequency: 50Hz Or 60Hz PD Free: No More Than 5pC At 50KV
Duty Cycle: 30mints Or Made By Order Test Accuracy: No Less Than 1.0%
High Light:

high voltage resonant test system


resonant test set

Power Frequency AC Resonant Withstand Voltage Test Set , For Thermal Generators Test


I. Product Description :


According to the relevant test standards from IEC and IEEE, at the time of overhaul or new erection of the generator , the stator winding of the large capacity thermal power generator needs to conduct AC withstand voltage test at 50 or 60Hz power frequency.


AC resonant test set can be classified as variable frequency and variable inductance resonant test system. Power frequency AC resonant withstand voltage test set for large capacity thermal generators is tuned to resonance by regulating inductance. Large capacity output on test object can be obtained by inputting small capacity power supply and samll layout space through using the set. So the test set is usually used for on-site AC withstand voltage test and PD detecting HV source for power generator.The test set model CHX-350KVA/50KV is designed and used for testing 600MW and below class thermal generators .


II. Appication

600MW and below thermal generators

100MW and below hydraulic generators


III. Main Components:


SN Name of Components Type and specification Qty. Each weight Each Dimension
1 Resonance Control console DCG-L-50KVA/380V 1piece 25kgs 600*360*850mm
2 Electric voltage regulator cabinet DT-50KVA/0~420V 1piece 300kgs 600*500*1150mm
3 Excitation transformer CQSB-50kVA/8KV 1piece 300kgs 650*650*800mm
4 Variable inductance reactor CHX(TL)-350kVA/50kV 1piece 1000kgs 950*750*1400mm
5 Voltage divider TRF-50KV 1set 5kgs D170*H850mm
6 Special test accessories        
Note : Special requirement can be made by order.



VI. General Technical data:

  1. Mode of resonant circuit: Series resonant with variable inductance
  2. System model : CHX-L-350KVA/50KV
  3. Input power supply : 380±10%(single-phase),50Hz/60Hz
  4. Rated output capacity: 350kVA
  5. Rated output Voltage:50KV
  6. Rated output current: 7A
  7. PD level itself: no more than 5pC 
  8. Reg. Freq range : 50/60Hz
  9. Output Resonance voltage waveform: pure sine wave
  10. THD of output waveform: ≤1%
  11. Insulation level: Under 1.1 times and keeping 1min, normal
  12. Duty cycle : 30mins on under rated current working condition ;
  13. Quality factor of test set itself: Q≥30 ;
  14. Temperature rise: Less than 65K under rated current working 30mints;
  15. Noise level: No more than 65dB
  16. Reactor Structure: oil-immersed with iron tank type ,adjustable inducatance 
V. Technology Advantage 
  1. Reactive power full compensated, the power of the equipment and power is only less than 1/10 of measured equipment; with smaller volume and lighter compared with the equipment in same capacity.
  2. With large output capacity and small power capacity, low cost, easy to operate and keep safe.
  3. Typical current filter circuit, the output voltage distortion (THD) is very small
  4. The short circuit current after flashover or breakdown is only less than 1/10 (1/Q) of the measured current, can effectively prevent the damage to fault point after breakdown.
  5. Auto blowout the arc after flashover, it is a long and stable process to recover the serial resonant voltage, safe.

VI. Function 

  1. Remote control and indication function for the iron-core gap of reactor:The gap sensor is installed in the reactor, which directly reads the iron-core gap on the console to guide operation. The gap limiting switch and indicator are also installed.
  2. Auto step down function when withstanding time is up:Withstanding timing adopts digimatic timer. When withstanding time is up, the system will auto step down.
  3. Zero position close, zero start step up function:With zero limiting function. If the voltage regulator is not at zero position, then the HV output button cannot be closed, assuring the system step up from zero.
  4. Over current protection:The system is with over current relay, which is of high anti interference, fast action, protection test object against over-current damage.
  5. Over voltage and test object flash-over protection functions:This system takes electronic over voltage and flash-over protection board, protects test object against over voltage and flash-over. It is fast, stable and reliable, overcoming the instability, large discreteness and inconvenient adjustment of sphere-gap protection voltage. The setting of over voltage protection is manual adjustment, digital display, which is direct, convenient and accurate. The flash-over protection samples the accident variance of discharging signal falling delay, compares it with basic signal and determines. It is of high accuracy, avoiding possible mistake movement by accident variance of rising delay.
  6. Real-time monitor function for test data:It is able to monitor HV side voltage, current and LV side voltage, current, which is more direct viewing the test status.
  7. Digital display of circuit resonance and locking function when it is not of resonance and step up:
  8. It can directly display the resonance status of the system by power factor. If the system is not at the resonant point, it must press close button to step up. When the system is adjusted to resonance, release the close button, click on the step up/down button to step up or step down.
  9. Emergency stop :“Step on” emergency brake switch. Once there is abnormal conditions during test, step on this switch, the main power will be cut off right away to protect the safety of the testing personnel and the equipment.


  • Accessory box for storage accessoires
  • Connection cables of control console and Voltage regulator
  • Connection cables of voltage ragulator and exciting transformer
  • Output cables of exciting transformer
  • System grounding cables
  • Parallel cables of the reactor
  • HV output cables(reactor to divide,divider to test object)
  • HV measuring cables ( the signal output cables of voltage divider )
  • A final test report, a quality Certificate ,a user manual and a packing list are offered .

VIII. Application Sale list 


SN Project Name

Rated capacity of generator


Typical model supplied of test set Country Order Qty.
1 Three Gorges Hydropower Station 700MW Hydroelectric generator CHX-L-2350KVA/55KV China 2set
2 Gezhouba Hydropower Station 170MW Hydroelectric generator CHX-L-1100KVA/40KV China 2set
3 Xiluodu Hydropower Station 770MW Hydroelectric generator CHX-L-2850KVA/55KV China 2set
4 Xiangjiaba Hydropower Station 800MW Hydroelectric generator CHX-L-3750KVA/65KV China 2set
5 Wudongde Hydropower Station 850MW Hydroelectric generator CHX-L-5100KVA/60KV China 2set
6 Baihetan Hydropower Station 1000MW Hydroelectric generator CHX-L-4800KVA/65KV China 2set
7 SON LA Hydropower Station 400MW Hydroelectric generator CHX-L-1125KVA/45KV Vietnam 1set


IX. Optional model 


Model Rated voltage Rated output current Rated output capacity Application for turbine generator or thermal power generator
CHX-L-250KVA/50KV 50KV 5A 250KVA For 300MW and below generator stator
CHX-L-350KVA/50KV 50KV 7A 350KVA For 600MW and below generator stator
CHX-L-600KVA/50KV 50KV 12A 600KVA For 1000MW and below generator stator
Special requirement can be made by order



X. Test standard table from IEC60034-1:2017  Rotating electrical machines - Part.1 :Rating and performance


High Accuracy Thermal Generator Test Equipment / Ac High Voltage Tester Low Noise 0

High Accuracy Thermal Generator Test Equipment / Ac High Voltage Tester Low Noise 1

High Accuracy Thermal Generator Test Equipment / Ac High Voltage Tester Low Noise 2

High Accuracy Thermal Generator Test Equipment / Ac High Voltage Tester Low Noise 3

High Accuracy Thermal Generator Test Equipment / Ac High Voltage Tester Low Noise 4


Contact Details

Contact Person: Sales Manager

Tel: +8613707144739

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