MS-103Transformer short-circuit impedance testing system 

The instrument utilizes advanced synchronous AC sampling and digital signal processing technology, ensuring accurate and reliable measurement data. It is an effective tool for transformer testing and analysis, and can also be used for impedance measurement of reactors, transmission lines, and other equipment.
Main Functions and Features:
1. Measures transformer short-circuit impedance, short-circuit reactance, short-circuit resistance, and three-phase impedance voltage.
2. Displays parameters such as voltage, current, power, and frequency for each test.
3. Measurement can be completed using only a single-phase 220V AC power supply.  In the absence of an AC power supply, a low-power UPS power supply can be used (consider the power capacity based on the test current).
4. Simple and convenient wiring operation; can use either single-phase or three-phase test power supply.
5. Automatic frequency correction eliminates errors caused by frequency fluctuations.
6. Stores 100 measurement results; the instrument has built-in non-volatile memory for long-term data storage.
7. LCD screen display with menus and operation prompts for intuitive and convenient operation.
8. Non-volatile calendar and clock function.

1. Measurement Accuracy: Voltage, Current, Impedance: 0.2% ± 3 digits
2. Power: 0.5% ± 3 digits (cosφ > 0.1), 1.0% ± 3 digits (0.01 < cosφ ≤ 0.1)
3. Voltage Measurement Range: AC 0-800V
4. Current Measurement Range: AC 0-80A
5. Impedance Measurement Range: 1Ω-200Ω