Lightning counter calibrator instrument usually provides multi-level adjustable DC output voltage
The lightning counter calibrator (also known as arrester discharge counter tester) is a portable device specifically used for on-site testing in power systems. Its core function is to verify whether the "lightning counter" on the arrester can operate correctly by simulating a real lightning current, thereby ensuring that the arrester can accurately record the number of strikes after being hit by lightning, providing a reliable basis for the maintenance and condition assessment of power equipment.
Here is a detailed introduction to the core principles, functions, and technical features of this type of instrument:
⚡ Core Working Principle
The core principle of the lightning counter calibrator is to simulate lightning strikes. It generates a standard impulse current pulse (typically an 8/20μs waveform with a peak current greater than 100A) through internal circuits, which is directly applied to the discharge counter of the arrester. If the counter can accurately advance by one count after being subjected to this simulated current impulse, it indicates that its mechanical and electrical performance is intact; conversely, if it fails to do so, it suggests that the counter may have failed due to moisture, corrosion, or component aging, and requires repair or replacement.
