100 & 150kV Di-electric voltage breakdown tester for testing as per ASTM D 149 and IEC 60243

As per ASTM D 149 and IEC 60243, manufacturers need to test solid insulating material for dielectric breakdown voltage. This checking of strength of solid insulating materials is done as per the utility's frequency. We have a series of High Voltage Testers right from 50kV to 150kV to carry out this dielectric strength test (Hipot)

The source is designed for the capacity as mentioned in clause 6. The equipment provides an electronic circuit for current sensing & tripping. Various tripping current ranges are provided to protect the sample as well as the equipment. The high potential test system is designed for all the methods of voltage applications (voltage profiles) such as short time test, step by step test, slow rate of rise test etc. - thus it caters to requirements of the ASTM D 149 test standard.

Likewise, Short-time (rapid-rise) test, 20 s step-by-step test, Slow rate-of-rise test, 60 s step-by-step test, Very slow rate-of-rise test and Proof tests can be performed in accordance with IEC 60243.

We provide an oil bath environment (test chamber) with various electrodes as mentioned in the Table 1 (page 3) of the standard. We welcome inquiries for customised high voltage testers with customised electrode dimensions.

In the PC based models, voltage, time, rate of rise & all other parameters can be set. The voltage against time graphs (real-time as well as test results) can be seen in the software. User can generate reports, export to MS Office / PDF, save & set all parameters.

ASTM D 149 Tester – 100kV Hipot and 150kV HipotMax

  • This Programmable Unit has facility to carry-out test
    • In Manual Mode sudden application of Test Voltage
    • In Auto Mode (Programmable Mode- PLC OR PC) prescribed in ASTM D149, Clause 12 procedure
      • Method A - Short Time Test
      • Method B - Step by Step Test
      • Method C - Slow Rate of Rise Test
  • Different Electrodes (Type 1 to Type 7) as per ASTM D149 are provided.
  • Rate of rise of Voltage (speed of variac) can be selected automatically by PLC or PC.
  • Safety Factors
    • Door Interlock for Test Chamber.
    • Emergency OFF facility
    • Oil cooled / insulated HV Transformer
  • Alarm: Visual as well as audible indication for High Voltage ON
  • Test Chamber (Oil Bath) : Test Chamber(Separate Trolley) is provided with:
    • Sample holding arrangement for one type of Electrode.
    • Arrangement of Heating Oil upto 90°C Max
    • PID Controller for Temperature control & indication
    • High Voltage Transformer
  • Following models are available
    • PLC based System : In this system, HMI+PLC is provided for setting and controlling different parameters & process
    • PC based System : In this system, process control, monitoring and report generation is done through PC Software, Labview Based Testware®

  • Input Supply - 3 Phase 415 V AC, 25 Amps. max., 50Hz OR 3 Phase 480 V AC, 25 Amps. Max., 60Hz. This will be customised as per your utility
  • Voltage Range : 0 to 50, 75, 100 or 150kV AC – depending on model
  • Tripping threshold – 5 mA, 10 mA, 25 mA, 50 mA and 100 mA AC
  • Trip current setting will be selectable with rotary selector switch
  • Rate of Voltage Rise :
    • Low limit – 0.5 % of full scale
    • High Limit: 10 % of full scale
  • Duty cycle: 50% and 5min duration
  • Indicator Lamps – HT ON, PASS, HV TRIP, DOOR OPEN & TEST OVER
  • Digital Voltmeter – 3 ½ digit having range 0 to 100 KV
  • Digital Current Meter –3 ½ digit having range 0 to 100.0 mA AC
  • PC Based System : Labview Based Testware®
    • Test voltage, rise of voltage, Test time & cycle can be settable and control through PC
    • PC will conduct the test & parameters will be recorded as per test samples & date of testing
    • PC Either HP or Dell or Equivalent make. OS will be Windows 11 licence.

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