Product Introduction

       NDPT-100 Voltage Transformer Excitation Characteristic Tester is a specialized instrument jointly developed by our company and the Wuhan High Voltage Research Institute of the China Electric Power Research Institute, in accordance with the new national standard for PTs, "GB/T 22071.2-2008 Guidelines for Transformer Testing Part 2: Electromagnetic Voltage Transformers," and in response to the actual needs of transformer manufacturers. It is specifically designed for measuring the excitation characteristics and no-load characteristics of PTs during factory testing. The instrument adopts advanced DSP+FPGA technology, featuring fast tracking measurement speed, accurate data capture, powerful functionality, and ease of use, placing it at the leading level in the domestic market.

Product Features

☆ Fully automatic collection, measurement, display, storage, and printing of all measurement parameters and excitation characteristic curves (voltage, current, power, frequency, equipment number, time, etc.)
☆ Ultra-wide range, capable of automatic and manual measurement of excitation data at set points
☆ Supports up to 100 sets of preset test sample parameters; during testing, simply input the number of the preset test sample parameters to retrieve the sequence values of capture points, greatly improving testing efficiency
☆ Built-in large-capacity memory for storing test data, which can be uploaded to a PC via a standard industrial communication interface (RS232). Using the company's developed software, data can be downloaded, and typical test reports can be automatically generated and edited, facilitating technical management and archiving
☆ Comprehensive overvoltage and overcurrent protection functions, with protection values automatically adjusted based on test parameter settings, ensuring both simplicity and the safety of the tested equipment
☆ Can also be used for the volt-ampere characteristic testing of voltage (current) transformers and arc suppression coils
☆ Equipped with a large-screen graphical LCD, full Chinese menu interface, cursor prompt operation, simple and convenient; real-time display of test data and curves, automatic scaling of curve coordinates for clearer reading
☆ Built-in mini printer for real-time printing of test reports.

Technical Parameters

☆ AC Voltage: 0 ~ 300V
      Accuracy: 0.2 class
☆ AC Current: 0 ~ 20A
      Accuracy: 0.2 class
☆ Active Power: 0 ~ 6KW
      Accuracy: 0.5 class
☆ Frequency: 40 ~ 75Hz
      Accuracy: 0.2 class
☆ Power Supply: 220V ±10%, 50Hz
☆ Environmental Conditions:
      Operating Temperature: -10℃ ~ +50℃
      Storage Temperature: -25℃ ~ +70℃
      Relative Humidity: 10% ~ 95%, non-condensing
☆ Dimensions: 415mm × 225mm × 220mm
☆ Weight: 5kg (excluding accessories)