MS-100DTransformer ratio tester

The instrument performs three-phase turns ratio testing in a single operation, offering fast testing speed and high accuracy. This significantly saves on-site testing time and brings high efficiency to customer testing.

It is suitable for a wide range of transformers, capable of testing various connection groups such as Y/y, Y/d, D/y, D/d, YN/zn, ZN/yn, etc., and can also measure the turns ratio of voltage transformers (PT) and current transformers (CT).
Technical Features:
1. The interface uses an intelligent color screen display, making operation simple and convenient.
2. Fast testing speed: Three-phase turns ratio testing can be completed with a single connection in just 10 seconds.
3. Features a blind testing function, allowing turns ratio and group testing even when the high and low voltage connection methods are unknown.
4. Suitable for testing turns ratio, group, and polarity of distribution transformers up to 1000KV transformers, single-phase transformers, current transformers (CT), voltage transformers (PT), and Z-type connected transformers.
5. Wide testing range: Up to 10000, with a maximum of 197 tap positions.
6. AC/DC dual-use: Powered by a lithium battery or adaptive 220V AC power supply.
7. Non-volatile clock and date display; data storage methods include local storage and USB drive storage. Local storage can store 500 test data entries, which can be transferred to a USB drive. USB drive data is stored in Word format and can be directly edited and printed on a computer.
8. The instrument has high and low voltage reverse connection protection and transformer short circuit and inter-turn short circuit protection functions.
9. Small size and light weight, making it convenient to carry and use.

1. Measurement Range: 0.9-10000
2. Accuracy: ±(Reading × 0.2% + 2 digits) (less than or equal to 500), ±(Reading × 0.5% + 2 digits) (greater than 500)
3. Resolution: 0.9-9.9999 (0.001)
4. Power Supply: Built-in battery or external charger. Charger operating conditions: Input 100-240Vac, 50/60Hz
5. Charging Time: Approximately 5 hours