NDFA-II CT Volt-Ampere Characteristic Tester

Product Introduction

       This product is a fully automated CT characteristic testing instrument, specifically designed for relay protection and high-voltage insulation applications. The tests that the instrument can perform include: CT volt-ampere characteristic test, CT ratio polarity test, CT polarity test, CT primary current flow test, CT AC withstand voltage test, automatically calculating results such as knee-point voltage and current values, ratio error, 5% or 10% error curve values, and other parameters.

       The instrument uses imported core components and strict manufacturing processes to ensure stable and reliable performance. The panel is ergonomically designed for easy operation, allowing one person to complete all testing tasks. The software is powerful, automatically calculating and providing test results. It features a built-in USB transfer function, and when combined with PC software, it generates comprehensive test reports, simplifying data management and reducing the workload for testers.

       The instrument comes with a built-in mini printer for instant printing of test data and curves. It is a fully functional, professional testing instrument suitable for both laboratory and field testing, widely praised by users.

Product Features

• Safe and Convenient: The instrument is highly automated, automatically completing set tests and providing results and curves. Testers do not need to contact the device under test, keeping them away from high-voltage circuits and ensuring personal safety.

• Comprehensive Functionality: The instrument integrates CT volt-ampere characteristic tests, CT ratio polarity tests, CT polarity tests, CT primary current flow tests, and CT AC withstand voltage tests. It automatically calculates knee-point voltage and current values, ratio error, 5% or 10% error curve values, and saves and prints test records and dates in real time, making it easy for users to organize test reports.

• High Output Capacity: For the volt-ampere characteristic test, the standalone output voltage can reach 1000V, and with an external booster, it can reach 2500V. For ratio tests and primary current flow tests, the current can reach 600A. The instrument has an output capacity of 5kVA, capable of performing volt-ampere characteristic tests on 500kV level 1A current transformers.

• User-Friendly Interface: Features a large 320×240 dot matrix Chinese character graphic interface with clear and beautiful graphics. It uses a high-performance rotary mouse for simple, convenient, and long-lasting operation. It includes a built-in mini printer for instant printing of test data and curves.

• Large Data Storage Capacity: The instrument has built-in memory, and test data from all functional modules can be saved without loss upon power failure. After field testing is completed, test results can be viewed and printed indoors.

• USB Data Transfer: Supports transferring test data via USB drive, which can be read on a PC, making operation simple and fast.

• Powerful PC Software: The PC application software is feature-rich and easy to use, enabling data analysis, storage, printing, and generating comprehensive test reports for efficient data management.

• Multiple Power Supply Modes: The instrument supports adaptive power supply from AC220V or AC380V. When the AC power input terminal is connected to AC220V, the AC voltage output is 0–600V; when connected to AC380V, the output is 0–1000V, allowing users to choose based on actual needs.

Technical Parameters