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Automatic Capacitance & Tan-Delta Test System [12kV, 200mA]



This is a complete integrated Capacitance and Tan-Delta test set including inbuilt 12kV AC power source Measurement Bridge and a reference SF6 gas filled Standard Capacitor. It is simple to use and easy to operate. It has a large backlit LCD display, and soft touch membrane buttons. The connections are simple and the set can be operated by inexperienced operators. The set is extremely light-weight and portable enough to be carried by a single person. Equipped with a USB serial output port, users can download their test results on PCs, or can use the internal 99 test storage facility. Integrated thermal Printer also allows printing of results on site. The instruments are calibrated in our in-house test laboratory to give you results traceable to national standards.


  • Just set test parameters, push start, and everything is automatically done in sequence right up to printing of test results.
  • High Interference suppression, good signal-to-noise ratio.
  • UST, GST ad GSTg test modes
  • CVT test facility
  • Input overvoltage protection
  • Output short-circuit protection
  • Can be used with external power supply up to 12kV for enlarged current to 1A, for generator related testing
  • Electronic Calibration done at our lab, with results traceable to national standards.
  • RS-232 output
  • Poor ground rejection
  • Fault protection and indication
  • Thermal Printer integrated


Input Supply- 1-phase 220V 50Hz, or, 110V 60Hz (also available on request)

Internal HV frequency- 45 to 55 Hz (single) 45/55Hz (auto multiple frequency measure & average for interference suppression)

Dissipation Factor Range- no limit

DF Resolution- 0.001% (1 X 10-5)

DF Accuracy- 1% + 4 digits

Capacitance Range- 3pF to 50000pF @ 12kV 60pF to 1uF @ 0.5kV

Capacitance Range Accuracy- 1% + 1 digit

Test Voltage range- 0.5kV to 12kV, 200mA(max)

Test time- 30s typical

Test Voltage accuracy- 1% + 10 digits

CVT test mode- O/p Voltage 3 to 50V, O/p Current 3 to 30A

Humidity- <90% condensing

Dimensions (excluding accessories)- 45 X 35 X 35 (all dims. in cm)

Test Voltage resolution- 1V

Input Current Range- 10uA to 5A

Printer- Thermal printer

Communication Port- RS-232

Operating Temperature- –10°C to 50°C

Weight including accessories- 35 kg

Storage Temperature- -20°C to 60°C


  • Transformer testing
  • Testing Bushings, CTs, PTs, etc. at substations
  • Testing Rotating machines (LV Motors/Generators) on-site
  • Test equipment – 1 no
  • Test leads (HV, LV, Gnd.) – 1 set (20mtrs length)
  • Connecting AC mains cable – 1 no
  • Printer roll – 1 no (already loaded)
  • User manual – 1 no
  • Test certificate – 1 no
  • Warranty Certificate – 1no (Standard warranty 1 yr)