High Voltage Testing Instruments

AC/DC High Voltage Testers An AC/DC High Voltage Tester (often called a Hipot tester or dielectric strength tester) is an electrical safety instrument designed to verify the integrity and breakdown threshold of insulation in electrical equipment, cables, and components. It ensures systems can withstand operating and transient voltages without causing electrical hazards.

Primary / Secondary Current Injection Test Set Primary and secondary current injection test sets are diagnostic tools used in electrical engineering to commission, verify, and maintain power system protection schemes, such as circuit breakers and protective relays. They ensure electrical infrastructure operates safely and interrupts power precisely when dangerous fault conditions occur.

Relay Test Set A relay test set is a specialized piece of electrical equipment used to verify, calibrate, and troubleshoot protective relays in power systems. By simulating various fault conditions—such as overcurrent or voltage drops—it ensures relays will accurately trip and protect expensive grid infrastructure during emergencies.

Contact Resistance meters/ Micro Ohmmeters A Contact Resistance Meter (or Micro-Ohm Meter) is a specialized electrical testing instrument designed to measure extremely low resistance values (in the micro-ohm range). It is commonly used to assess the health and integrity of high-current electrical joints, switchgear, and connections.

Transformer winding resistance meter A transformer winding resistance meter is a specialized testing instrument used to measure the DC resistance of transformer coils. By injecting a stable direct current into the highly inductive winding and detecting the corresponding voltage drop, it precisely calculates ultra-low resistance values using Ohm's Law

TAN DELTA Test Set A Tan Delta (Dissipation Factor) Test Set is a diagnostic testing instrument used to evaluate the health and integrity of high-voltage electrical equipment insulation (such as cables, transformers, bushings, and motors) by measuring dielectric losses

Circuit Breaker Test Set A circuit breaker test set is a specialized electrical diagnostic tool used to evaluate the mechanical and electrical integrity of circuit breakers. By safely simulating fault conditions, it measures critical parameters like operating time, contact resistance, and tripping behavior to ensure reliable operation.

Transformer Oil Insulation Break down Test set A Transformer Oil Breakdown Voltage (BDV) test set is a diagnostic tool used to measure the dielectric strength of insulating oil. By gradually applying high voltage until an electric spark or arc occurs, it evaluates the oil's ability to withstand voltage, indicating contamination, moisture levels, and overall degradation.

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