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Impulse Voltage Tester for Solar PV (Photovoltaic) cells

Impulse tester 10KV

We manufacture Impulse Voltage Testers to simulate voltage impulses from lightening strikes on Solar Photovoltaic (PV) cells. This test is described in IEC 61730 – 2 (clause 10.5 Impulse Voltage Test MST 14).

The peak voltage can be adjusted by the user. The test sequence i.e. number of Impulse for Positive and Negative polarity, time between two subsequent impulses & so on can be programmed with the help of a dedicated PLC module. The entire sequence, for both positive and negative impulse is automatic. At the end of the test, the test results are displayed on HMI. Output is provided for connecting an oscilloscope for displaying the Wave Form at the output Terminals. In case any flash over occurs, it is detected by a circuit which stops the test sequence, and PLC displays the number of cycles with polarities at which the failure has taken place.

Applications : Impulse voltage tests are recommended with the object to determine effect of voltage stress on insulation due to voltage surges of short durations. A surge is a form of over voltage, which may be defined as an exceptional voltage in excess of peak voltage to earth at line or electrical system of which line forms a part (can be caused as a result of lightning strikes as well as other overvoltage spikes in the power system level).

As per IEC 61730 – 2, the solid insulation of the module should with-stand over-voltages of atmospheric origin as well as from switching of low-voltage equipment. This Impulse Voltage Test Instrument is custom designed for this particular test. The waveform generated by the Impulse Voltage Test Instrument is exactly as required as per IEC 60060 – 1.

This waveform (1.2 \ 50microSec) is common to most of the Impulse Voltage Testers except that the energy requirement for this Solar Photovoltaic (PV) is very higher in comparison.

  • Programmable and fully automatic sequence.
  • HMI / LCD Display for indication of test parameters and result.
  • Programmable module with sequencing for setting of:
    1. Positive , Negative or both polarities.
    2. No. of pulse for Positive or Negative polarity.
    3. Duration between two consecutive pulses
  • Selection of polarity : Automatic through PLC Unit
  • RAutomatic flash over detection and cut–off circuit
  • Digital display for flashing number of cycles with polarities for breakdown; Voltage Indication: Digital Meter to indicate peak voltage.
  • Output pin for output to oscilloscopes to view exact shape of the wave
  • Correction networks to correct the waveform to compensate capacitive load.
  • Digital voltmeter to indicate the peak voltage.
  • Lamp Indications for Test ON, Pass, Fail, Door Open, Positive Polarity and Negative Polarity selection automatic.
  • Emergency OFF push button.
  • Test Lock key switch to ON/OFF or avoid unauthorized person to operate the equipment

  • Mains Supply : 230 V, 50 Hz. (Other supply optional)
  • Output Peak Voltage : 2 kV to 12kV adjustable manually
  • Wave Form : 1.2/50 µs
  • Output Impedance : 2 Ohms, 12 Ohms
  • Energy Maximum : 500 Joules.
  • Capacitor : -2.5 Micro Farad.
  • Minimum Charging time: 3 seconds.
  • Load: Capacitive 5 nF to 80 nF
  • Output for Oscilloscope: Attenuated output 0 to 12V for 0 to 12kV
  • Impulse Voltage : 2 kV to 30kV adjustable
  • Impulse Rise Time : 1.2 micro sec. +/- 30%.
  • Impulse Fall Time : 50 micro sec. +/- 20%.
Impulse tester

While many devices are required to confirm to withstand this voltage impulse and current surge, we are outlining a few IEC standards that refer to this test -

IEC 61000 – 4 - 5, IEC 60065, IEC 60335 & IS 13252.1.2010.

Sr. No. Description Model
1 Impulse Tester 1.2/50µSec
  • a) 6kV (1.2/50 µSec) Energy Max. 18J
  • b) 10kV (1.2/50 µSec) Energy Max 50J
  • c) 12kV (1.2/50 µSec) Energy Max 70J
  • d) 15kV (1.2/50 µSec) Energy 112J
  • e) 20kV (1.2/50 µSec) Energy 200J
  • f) 6kV (1.2/50 µSec) a) Energy Max. 18J & b) Energy 0.5J
  • IT 6A
  • IT 10A
  • IT 12A
  • IT 15A
  • IT 20A
  • IT 6A EM
2 Impulse Tester 6.5kV 1.2/50 µSec with Current Surge 8/20 µSec (Combination Waveform) ITC6A
Impulse Tester 10kV 1.2/50 µSec with Current Surge 8/20 µSec (Combination Waveform) ITC10A
3 Impulse Tester 10/700µSec
  • a) 6.5kV (10/700µSec)
  • b) 10kV (10/700µSec)
  • IT6B
  • IT10B
4 a) Impulse Tester 6.5kV 10/700 µSec with Current Surge 5/320 µSec (Combination Waveform) ITC6B
5 Impulse Test 6.5kV (1.2/50 µSec & 8/20 µSec with Online with POW and CDN as per IEC 61000-4-5 (Combination Waveform) ITC6/N
6 Ring Wave Generator with CDN as per IS 12640-1: 2016 / IEC 61008-1:2012 RWG-6
7 Surge Tester 10kV as per IEC IEC 60065 ST10

SCR Elektroniks welcome custom design inquires

We manufacture Impulse Voltage Tester with high energy for testing as per IEC 61730. This equipment is useful for testing Solar PV cells. We ship world-wide from India.

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