Instrument Transformer Parameter Testing and Analysis System

1. The instrument can be used for CT tests including "excitation characteristics," "turns ratio," and "polarity," as well as for determining the CT's "5% and 10% error curves," "phase angle error," "ratio error," "secondary winding resistance measurement," and "secondary burden resistance measurement." 2. The instrument can also be used for PT tests, including "excitation characteristics," "turns ratio," and "polarity."

Optical Digital Simulation Power Amplifier

1. Adopts a standard 4U all‑aluminum alloy, electromagnetic‑compatible chassis with output terminals on both the front and rear for convenient installation and use. 2. Employs dual CPUs—DSP and ARM—for real-time control and display of relevant parameters, enhancing the instrument's intelligence. 3. Features a 7.0‑inch high‑definition touch LCD screen that displays in real time the amplitude, phase, frequency, and waveform of each output channel. 4. Combines touchscreen and mechanical buttons for parameter settings. 5. The instrument includes voltage short‑circuit, overload, and overheat indication and protection alarm functions, as well as current open‑circuit, overload, and overheat indication and protection alarm functions.

Handheld Secondary Fault Location Tester

The HD43 handheld secondary circuit troubleshooting tester is designed for the operation, maintenance, inspection, and commissioning of electrical secondary equipment in power grid companies, power plants, construction firms, protection‑device manufacturers, petrochemical enterprises, rail‑transit traction power supply systems, and other user sectors. It is a high‑end testing instrument that complies with domestic power‑industry standards, features a high degree of automation, and incorporates cutting‑edge technology. Powered by a built-in high‑capacity lithium battery, it is lightweight, compact, and easy to operate, making it particularly well suited for outdoor maintenance and testing of distribution‑network automation devices. It can also perform functional logic tests on protective relays.