Basic Characteristics of High Voltage Testing Instruments

High voltage testing instruments are mainly used to test the insulation performance and operational stability of electrical equipment under high voltage conditions. Their design balances safety, accuracy, and portability. The following are core characteristics summarized based on common features of mainstream equipment:

High Safety Design
Utilizes a split-type structure to isolate the high voltage module, reducing operational risks.

Equipped with multiple protection mechanisms, such as overcurrent protection, zero-position start protection, and delayed power cut-off, ensuring equipment and personnel safety.

Built-in intelligent anti-electric shock device automatically triggers audible and visual alarms in case of test abnormalities.

Precise Measurement Capability
High input impedance, low test current, and low power consumption improve measurement accuracy and stability.

Uses high-precision resistor-capacitor assemblies, combined with special potting processes to prevent oil leakage and ensure consistent long-term performance.

Can directly read various voltage values, including DC average, AC peak, and true RMS values, meeting diverse testing needs.

Integration and Portability
Voltage dividers, multi-value kilovoltmeters, and dedicated cables are integrated into an aluminum alloy case for easy carrying and field use.

Compact structure, small size, and light weight, suitable for mobile operating environments.

Intelligent Functions
Equipped with a digital display interface, it displays parameters such as voltage, current, and time in real time; some models support full digital LCD display.

Built-in clock circuit, which can save settings and test data even after power failure.

Supports program memory, data storage (up to 50 sets), print output, and computer upload for analysis.