Product Overview：
As the core component of power systems, transformers play a pivotal role in ensuring long-term stable and reliable operation, which directly impacts the overall system stability and reliability. According to State Grid's preventive testing regulations, new transformers must undergo periodic turn ratio or voltage ratio tests before commissioning. Traditional transformer ratio testers suffer from cumbersome operations, non-intuitive readings, and the need for manual conversions, typically yielding only single-phase ratio data. This innovative transformer ratio tester overcomes these limitations with a large high-resolution LCD screen for on-site convenience, featuring a Chinese-language menu interface for intuitive operation. It performs three-phase ratio testing in a single operation, delivering rapid results with high accuracy.
Main Features:
1. The three-phase CNC sinusoidal inverter power supply with soft start and soft stop functions ensures fast testing speed and high precision.
2. Testing functions for three-phase transformers, single-phase transformers, PTs, CTs, and Z-type transformers, including their ratio, group, and polarity.
3. The three-phase test features voltage ratio, turn ratio, vector diagram, and group connection testing functions.
4. CT ratio polarity test function.
5. It has the function of angular difference test in single-phase test.
6. The tap position can be tested up to 99 positions.
7. The test range is wide, reaching up to 20,000.
8. High/low voltage reversal warning.
9. Output short-circuit warning.
10. The clock and date display remain stable without power loss; data is stored locally with 100 test records, and the stored data can be transferred to a PC.
11. Thermal printer printing function.
12. Compact and lightweight, it is easy to carry and use.
Technical parameters:
range | 0.9~20000 |
accuracy | ±(reading × 0.1% + 2 digits) (≤ 1000) |
±(reading × 0.2% + 2 digits) (greater than 1000 and less than or equal to 3000) | |
±(reading × 0.3% + 2 digits) (for values greater than 3000) | |
resolution ratio | 0.9~9.9999(0.0001) |
10~99.999(0.001) | |
100~999.99(0.01) | |
1000~9999.9(0.1) | |
20000(1) | |
working power supply | AC100-240V,50/60Hz (batteryversion charging voltage) |
instruments weight | 4.5Kg |
instrument volume | 320mm (length)×280mm (width)× 135mm (height) |
temperature | -10℃~50℃ |
relative humidity | <90%, no condensation |