TUNKIA participated in the CPEM 2026 Madrid in four capacities—as a sponsor, exhibitor, paper author, and conference delegate—becoming the first Chinese company in CPEM history to become a sponsor.
Reliable operation of power systems depends on accurate testing and verification of a wide range of electrical equipment. TUNKIA offers a diverse portfolio of power testing instruments and systems designed to address these requirements. Covering equipment testing, on-site verification, and instrument calibration, these solutions support a variety of testing tasks across the power industry.
Electrical safety testing is essential for verifying the safety and reliability of electrical and electronic products. During production, quality inspection, and laboratory testing, instruments such as leakage current testers, withstand voltage testers, insulation resistance testers, and earth conti
Recently, the APLMF Training Course on Verification and Type Approval for Electric Vehicle Supply Equipment (EVSE) was held in Changsha, Hunan Province. As one of the supporting organizations, Tunkia Co., Ltd. hosted the on-site metrological verification training for EVSE at its campus.
Introducing TUNKIA TE1100 AC&DC-EU EVSE Tester. Learn more about its features and operation.
The rapid global adoption of electric vehicles (EVs) is driving demand for charging infrastructure. This article explains why metrological testing of EV chargers—verifying the precision of built‑in energy meters—is essential.
The purpose of EV chargers metrological testing is to ensure fair charging fees, protect the legal rights of users and operators, and maintain high precision and reliability of charging infrastructure over its long-term operation. This essay will introduce TUNKIA TK4830 Portable Tester for AC&DC EV Chargers, along with its operation process of testing EV charging stations.
This article provides an introduction to the working principle, classification, and typical calibration methods of Clamp Meter. The convenience of measuring current without the need for power interruption has made Clamp Meter widely used in power maintenance, industrial testing, and other fields. By analyzing various calibration methods in detail, the accuracy and response time of Clamp Meter can be improved, providing reliable measurement solutions for the metrology calibration industry. Click to learn more about our products and services tailored for the metrology calibration industry.
Current ratio measurement is an important part of the calibration and characterization of current transformers, current sensors, and other current measurement devices.A current ratio standard can use different transfer methods depending on how the current signal is converted and measured. Two common
As a critical piece of equipment in industrial manufacturing, the welding machine's electrical output accuracy and stability directly affect weld quality, product safety. TUNKIA has developed the TK6500 and TK6700 series welding machine AC/DC power calibration solutions.