NDBC-VII Transformer Turns Ratio and Vector Group Tester (with Battery)

Product Introduction

       This tester is an innovative product that overcomes the shortcomings of traditional transformer ratio bridge testing. It features a large high-resolution LCD screen and is powered by a lithium battery, making it convenient for on-site use.

       The product is mainly used for transformer ratio and group testing, as well as ratio and polarity testing of PTs and CTs. It offers fast testing speed and high accuracy.

Product Features

☆、Adaptive power supply: lithium battery or 220V AC. A single charge allows continuous testing of over 100 transformer ratio and group tests, making the testing process simple and convenient.

☆、Blind testing function: allows ratio and group testing even when the high and low voltage connection methods are unknown.

☆、In addition to conventional transformers, Z-type transformers, and PT testing, it includes CT ratio and polarity testing, broadening its application scope.

☆、Wide range and high accuracy: the ratio measurement range reaches up to 10000, with a guaranteed accuracy of 0.3% at 10000.

☆、Comprehensive protection functions, including reverse connection protection and output short-circuit protection.

☆、5.6-inch超大 industrial-grade high-brightness color LCD screen, ensuring clear visibility even under strong sunlight.

☆、Equipped with a thermal printer for easy data printing.

☆、Supports local storage and USB storage for convenient data saving.

Technical Parameters

☆、Ratio Testing

☆、Range 0.9~10000

☆、Technical Specifications

Accuracy

±(reading × 0.1% + 2 digits) (≤500)

±(reading × 0.2% + 2 digits) (>500 and ≤3000)

±(reading × 0.3% + 2 digits) (>3000)

Resolution

0.9~9.9999 (0.0001)

10~99.999 (0.001)

100~999.99 (0.01)

1000~9999.9 (0.1)

10000 and above (1)

☆、Operating Conditions and Dimensions

Power supply: built-in lithium battery or external charger. Charger input: 100~240VAC, 50Hz/60Hz

Charging voltage: 8.4V

Charging current: ≤2A

Charging time: approximately 3 hours

Usage time: over 8 hours

Unit weight: 3.8kg (excluding test leads)

Unit dimensions: 325mm × 225mm × 125mm

Operating temperature: -10℃~50℃

Relative humidity: ≤90%, non-condensing