Single Phase Automatic TTR Handheld Tester

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Single Phase Automatic TTR Handheld Tester

In process production of the power transformer’s semi-finished products and finished products ,before the newly installed transformer put into operation, according to the preventive test code of the state power department, it is required to run regular transformer turns ration or voltage ratio test.

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Description

Technical Parameters

Products Video

HM5001 Handheld TTR Tester Single Phase Testing Video

Product Overview

The HM5001P Portable Transformer Turns Ratio Tester is an advanced instrument specifically designed for precise and efficient measurement of transformer turns ratio (TTR). This device is widely used by power companies, transformer manufacturers, and industrial maintenance departments to test both single-phase and three-phase transformers, including power transformers, distribution transformers, and instrument transformers (PT/CT).

HM5001S-1

Products parameter

HM5001S-1

Range	0.9～10000
resolution	Minimum 0.0001
Accuracy	0.2 level
Test Voltage	24V
Dimension	200mm×100mm×60mm
weight	5kg
Working power	Built-in lithium battery
Charging power	AC100V-240V 50Hz/60Hz

Maintenance FAQs

Q: What is the HM5001P Transformer Turns Ratio Tester?

The HM5001P is a portable, precision instrument used to measure the turns ratio of transformers. It ensures the ratio of windings matches design specifications, helping detect faults like shorted turns or wiring errors.

Q: What types of transformers can it test?

Single-phase and three-phase transformers

Power transformers, distribution transformers, instrument transformers (PTs/CTs)

Transformers with various vector groups (e.g., Yy, Dd, Dy, Zn)

Q: How accurate is the HM5001P?

Typical accuracy: ±0.1%for turns ratio measurements.

Supports high-resolution testing for reliable results.

Q: Is the HM5001P battery-operated?

A: Yes. It includes a rechargeable lithium battery for portable field use. An AC adapter is also included for indoor or workshop testing.

Q: Can it test tap changers?

A: Yes. The HM5001P automatically tests all tap positions, making it ideal for transformers with on-load or off-load tap changers.