Your Impulse Test in Safe Hands: HBM HV Impulse Testing Solutions

June 7, 2022 admin

Most of the power grids worldwide are built by power lines on masts. They are highly exposed to lightning strikes – with the risk of damage to the components in a substation.

Damage to one or several of the elements may result in partial loss of the power distribution capability, unsatisfied consumers and high cost for repair.

Testing transformers, surge arrestors, isolators and switchgear is an important part of the quality proving process documenting the components’ electric strength.

HBM offers an innovative and efficient test and measurement solution for high voltage impulse tests using fiber optic isolated digitizers.

Measurement System Using Fiber Optic Isolated Digitizers

Reliable test results, reduced testing times and lower cost – place your trust in HBM test and measurement technology for your high voltage impulse test. We offer you an innovative test and measurement solution using fiber optic isolated digitizers.

Our measurement system complies with international IEC standards and consists of perfectly matched components:

Transient recorder
High voltage impulse attenuator
Analysis software.

This high voltage impulse testing solution supports you in measuring specific wave shapes. Furthermore, the latest analysis methods are being used.

Fast measurement and easy analysis of the test results are guaranteed. Benefit from reduced testing times and lower cost!

This test bench setup offers clear benefits:

NO electrical connection between test cell signals and equipment powered in the control room (measurement system and PC)
NO equalizing currents between test cell earth connection and mains earth connection
Impulse attenuator and battery operated digitizer placed in the shielded control room, i.e. minimum exposure to electromagnetic disturbance.

Increased Productivity with Automated Evaluation

All characteristic parameters need to be evaluated in simple and automated way to allow the highest possible throughput with the smallest possible error rate due to operator’s error. User selectable limit checking helps further increasing productivity. The main testing parameters are:

Timing
Amplitude
Overshoot
Oscillation
Chopping

Process Optimization with Test Collections

Testing several phases or bushings at positive and negative polarity as well as at different voltage levels creates a quite complex test program with easily up to 100 measurements or even more per test object.

Reduced Administration Overhead with Automated Test Reports

Each test – a single measurement or a test collection – is automatically available in the report generator. The user defines his report layout once and gets the test results including Pass/Fail indication at the click of a button. This way the administration overhead is reduced.