Transformer Characteristic Comprehensive Tester
Darui Electric recommends：
The Transformer Multi-Function Comprehensive Tester is specifically designed for relay protection CT VA characteristic testing, ratio testing and polarity discrimination. It can also perform transformer polarity tests, making it a cost-effective multi-function testing instrument.
Main Functions
The instrument automatically tests and calculates CT ratio; features a large graphic LCD with full Chinese menu interface; cursor-guided operation with real-time display of test data and curves with auto-scaling coordinates for clearer reading; low-voltage output mode for improved measurement accuracy; can also perform complete protection drive tests; comprehensive protection features; electronic polarity discrimination with audible and visual result indication, convenient and intuitive.
Detailed Description
1. Automatic testing: automatically tests CT VA characteristic data based on set parameters and plots excitation characteristic curves; automatically tests and calculates CT ratio.
2. Large graphic LCD with full Chinese menu interface, cursor-guided operation, real-time display of test data and curves with auto-scaling coordinates for clearer reading.
3. Built-in micro printer for real-time printing of CT volt-ampere characteristic test reports, excitation characteristic curves and CT ratio test reports.
4. Dual operation modes: main unit uses high-grade membrane keypad, with convenient communication interface (RS232 or USB) for laptop connection and even more convenient operation.
5. Built-in ultra-large capacity memory stores up to 6400 test data sets; uploadable to PC with included software for automatic generation and editing of test reports for technical management and archiving. 6. Flexible configuration: built-in booster up to 1000V, external booster up to 2000V; external current booster available in different capacities, max output current up to 1500A to meet more CT testing requirements.
7. Low-voltage output mode: for the significant number of lower test voltage CTs in the field, using low-voltage output mode (max 300V) during VA characteristic testing significantly improves voltage regulation finesse and measurement accuracy.
8. Can also perform complete protection drive tests: utilizing the external current booster high-current output advantage for protection drive testing, very convenient and practical.
9. Electronic polarity discrimination with audible and visual indication of test results, convenient and intuitive.
10. Comprehensive protection: The instrument features MCU-controlled over-current and over-voltage protection, automatically adjusting protection thresholds based on test parameter settings to ensure the safety of equipment under test.
Technical Parameters
1. Power Input: 220V/380V (auto-adaptive)
2. VA Characteristic Test:
Output: 0--280V/650V/1000V, 15A (max)
Voltage Measurement: 1000V, class 0.2 (resolution 0.1V); Current Measurement: 15A, class 0.2 (resolution 0.01A)
3. Ratio Test:
Measurement Range: 1~6500.0/5, class 0.2
Current Booster Output: 600A~1500A (optional)
Primary Current Measurement: 1500A, class 0.2
Secondary Current Measurement: 15A, class 0.2
Main Unit Output to Current Booster: max 10kVA
4. Power Supply: 220V ±10%, 50Hz
5. Dimensions: 400x300x260mm
6. Weight: approx. 16.5Kg
