NDFA-Ⅲ Transformer Comprehensive Characteristic Tester

Product Introduction

        This product is a fully automated CT/PT characteristic testing instrument, specifically designed for relay protection and high-voltage insulation testing. 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, PT volt-ampere characteristic test, PT ratio polarity test, and PT polarity test. It automatically calculates parameters such as knee-point voltage and current values, ratio error, and 5% or 10% error curve values.

       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 immediate 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 test, CT ratio polarity test, CT polarity test, CT primary current flow test, PT volt-ampere characteristic test, PT ratio polarity test, and PT polarity test. It automatically calculates knee-point voltage and current values, ratio error, and 5% or 10% error curve values, while saving and printing test records and dates in real time for easy report organization.

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

☆、User-Friendly Interface: Features a large 320×240 dot matrix Chinese character graphic interface with clear and elegant graphics. Equipped with a high-performance rotary mouse for simple, convenient, and long-lasting operation. Includes a built-in mini printer for immediate printing of test data and curves.

☆、Large Data Storage Capacity: The instrument has built-in memory, allowing test data from all functional modules to be saved without loss during power outages. Test results can be viewed and printed indoors after field testing.

☆、USB Data Transfer: Supports transferring test data via USB for easy and quick reading on a PC.

☆、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 centralized data management.

☆、Multiple Power Supply Modes: The instrument supports adaptive power supply for both AC220V and AC380V. When connected to AC220V, the AC voltage output ranges from 0～600V; when connected to AC380V, the output ranges from 0～1000V, allowing users to choose based on actual needs.

Technical Parameters