SCR Elektroniks Impulse Voltage Tester

SCR ELEKTRONIKS Impulse Voltage Testers and Surge Current Testers are designed for interference test as per IEC 61180. Impulse Voltage Testers produce a Voltage Impulse of the required 1.2 / 50 microsecond waveform, meaning a high voltage pulse with 1.2 microseconds rise time and 50 microseconds fall time. The voltage level is settable from 0.5kV to 25kV (depending upon model). Likewise, the Surge Testers will produce a current surge with the required wave-shape of 8 / 20 microsecond, meaning a high current surge with 8 microseconds rise time and 20 microseconds fall time.The Impulse Voltage Test Equipment is designed to generate a settable voltage impulse of 0.5 to 25kV (as per model) in both polarities. The waveform generated has a rise rime of 1.2 micro-second and 50 micro-seconds duration. This test is described in various standards including IEC 61180.

The peak voltage can be adjusted by the user. The test sequence i.e. number of Pulses 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 LCD display. Output is provided for connecting an oscilloscope for displaying the Wave Form at the output Terminal. 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. We have a PC based model available for demonstration in our factory in Mumbai, India which can be used as an ’Automated Test Equipment’ in your factory or lab.

Applications: Impulse voltage tests are recommended with the object to determine effect of voltage stress on insulation due to voltage pulses of short durations. An Impulse is a form of over voltage, which may occur in real-life scenarios such as a Lightening on an insulation, causing the formation of current path, thereby impairing the insulating property permanently. OR a voltage impulse on a line with an open MCB in it, might jump across the contact & cause a path due to an arc which in turn might damage part of your machinery. Therefore, the insulation must withstand voltage Impulses as defined in BS 61180 or UL 60950

Our parallel product line for Impulse Voltage as well as Surge Current testing in a single unit (shown in the adjoining image) is popular with Energy Meter manufacturers, manufacturers of communication devices, Information Technology Equipment (IEC 60950 – 1) and protection devices like Residual Current Circuit breakers (RCCB /RCBO – IEC 61008 – 1 & IEC 61009 – 1).

In case of testing for current surges, as per IEC 61000 – 4 – 5 & other standards, an overcurrent is applied across input supply to verify the functioning of input protection circuitry.

Input Supply : 20V AC, 50Hz (Tailored to your standard supply from electrical utility)