Handheld Turns Ratio Tester

Product Introduction

The MEBC‑WYT3 Handheld Transformer Turns Ratio Tester is a portable TTR testing device with a compact design and one-hand operation, suitable for on-site rapid detection of turns ratio, connection group, and polarity of transformers (including Z-type), voltage transformers (PT), and current transformers (CT). It has complete protection functions and convenient data retention.

Product Parameter (specification)

Range	0.9 to 10000
Accuracy	±(Reading × 0.1% + 2 digits) (≤500) ±(Reading × 0.2% + 2 digits) (500 < R < 3000) ±(Reading × 0.3% + 2 digits) (R > 3000)
Resolution	0.9 to 9.9999 (0.0001) 10 to 99.999 (0.001) 100 to 999.99 (0.01) 1000 to 9999.9 (0.1) 10000 and above (1)
Power Supply	Built-in battery or external charger. Charger operating conditions Input 100-240VAC, 50/60Hz. Charging time;Approximately 2 hours
Instrument Weight	1.7 kg
Instrument Dimensions	246mm (L) × 156mm (W) × 62mm (H)
Operating Temperature	-10°C to 50°C
Relative Humidity	≤90%, non-condensing

Product feature and application

Blind Test Mode: Automatically identifies the connection group without presetting parameters
Dual power supply (lithium battery/mains power), capable of continuously testing more than 100 transformers after a single full charge
Supports external printer, data can be stored in the machine or U disk
Complete reverse connection and short-circuit protection, safer for on-site use
Small size and light weight, suitable for rapid testing during patrol inspection and emergency repair

Prodection details

It is specially designed for on-site testing scenarios such as power grid patrol, substation maintenance, and transformer emergency repair. It can quickly complete the turns ratio and connection group testing of conventional and Z-type transformers, as well as the turns ratio and polarity testing of PT and CT. Its portable design allows for easy carrying and operation in narrow or mobile environments.

Company Qualifications

FAQ

1)What is the transformer turns ratio measurement range of the MEBC-WYT3 Handheld Transformer Turns Ratio Tester? What is the test accuracy corresponding to its maximum range?

The turns ratio measurement range of this instrument is 0.9 to 10000. The test accuracy corresponding to the maximum range (greater than 3000) is ±(reading × 0.3% + 2 digits).

2)What power supply methods does the MEBC-WYT3 Handheld Transformer Turns Ratio Tester support? How many transformers can it continuously test for turns ratio and connection group after a single full charge?

Answer: The instrument supports adaptive power supply from lithium batteries and 220V AC power. After a single charge, it can continuously perform turns ratio and connection group tests on over 100 transformers.

3)What is the "blind test function" of the MEBC-WYT3 Handheld Transformer Turns Ratio Tester? Can connection group parameters be manually modified during this function?

Answer: The blind test function enables the instrument to accurately determine the turns ratio and connection group even when the high/low voltage connection configuration and group of the test specimen are unknown. Within the "Blind Test Function" menu, the connection group is fixed to "Auto" and cannot be manually altered; the instrument automatically determines the connection group.

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