Introduction to Transformer Capacity and No-Load/Load Tester:
The transformer capacity and no-load/load characteristic tester not only tests transformer capacity, load characteristic tests, and no-load characteristic tests, but also can measure voltage, current, power, frequency, short-circuit impedance, and other transformer parameters. The instrument is small in size, light in weight, simple in wiring, convenient in operation, accurate in measurement, stable in performance, and easy to learn, making it an indispensable device for electricity inspection departments.
Main Features
l Large screen, high brightness, wide temperature LCD display, all measurement data displayed on one screen, with Chinese information prompts. LCD brightness and contrast are adjustable, and it can be clearly displayed even under strong sunlight.
l The tester has a built-in micro printer with Chinese character printing output, allowing test results to be printed directly on site.
l Built-in protection circuit to avoid instrument damage and personnel accidents.
l Uses long-life touch keys, easy operation, most operations can use default settings, one-key operation all the way.
l Built-in high-energy power supply can complete all test items, and during on-site testing, the instrument does not need external power supply, voltage regulators, current boosters, or other auxiliary equipment.
l Unique power-saving mode ensures the completion of field testing of multiple transformers of various models.
l Can test transformer capacity at non-rated tap positions.
l Test data is stable with good repeatability.
l Simple wiring, only two wiring clamps are needed to complete the test, and the test does not distinguish phases; any two phases can be selected.
Technical Parameters
1. Capacity test: range 30kVA～500kVA, accuracy 0.5 class,
range 630kVA～40000kVA, accuracy 2 class
2. Load test: short-circuit loss (copper loss): range 0～40000W, accuracy 0.5 class
impedance voltage (Uk) and its percentage (Uk%), accuracy 0.5 class
3. No-load test: no-load loss (iron loss): range 0～40000W, accuracy 0.5 class
no-load current, accuracy 0.5 class
4. Other electrical measurements: voltage range 0～750V, accuracy 0.2 class; current range 0～50A, accuracy 0.2 class; frequency range 45～65Hz, accuracy 0.2 class. All the above measurements can be completed by the built-in power supply.
5. Automatically complete temperature compensation of test data, converting data to values at rated temperature.
6. Built-in power supply capacity: 15AH, can continuously measure more than 100 transformers; output power 600W, can directly test large-capacity transformers such as 16000KVA.
7. The instrument provides test signals: AC voltage 40V, maximum current 15A, standard sine wave, distortion less than 1%.
8. Automatically determine and print out the transformer model (high energy consumption and energy-saving type).
9. Has storage function, can store information of 100 transformers.
10. Equipped with special short-circuit clamps for testing, convenient wiring. For special requirements, optional 1000A short-circuit plate.
11. Insulation resistance between voltage and current input terminals and the case is ≥500MΩ, and the working power input terminal can withstand a power frequency 2KV, 1-minute AC withstand voltage test against the case.
12. The instrument is small in size (400×320×180) and light in weight (less than 6 kg), easy to carry.
13. Working environment: temperature -20~50℃, humidity 10%～85%.
