Transformer Comprehensive Tester
Darui Electric recommends：
Transformer Tester, the tests this instrument can perform include: CT VA characteristic test (1A, 5A), PT VA characteristic test, CT polarity test, PT polarity test,CT dynamic stability and short-time thermal current,CT ratio polarity test and PT ratio polarity test, auto-calculating CT error curve at any point, CT/PT ratio error and other parameters.
CT/PT VA Characteristic Comprehensive Tester
Product Description
Transformer TesterMulti-functional field test instrument. Uses AC220V integrated power supply, no external boost/current equipment needed; set test voltage/current, the device auto boosts and displays VA curve or ratio/polarity results, supports data saving and on-site printing, eliminating manual adjustment and recording. USB interface allows data upload to PC for editing and printing. Simple operation, high efficiency, cost-effective high-tech product.
Main Features
1. Safe & Reliable:
MBC power control technology, single-phase AC220V input, shared input port for working and power supply - safer and more reliable design.
Note: Other products use separate inputs requiring 3-phase AC380V, posing electric shock risks.
2. Meets National Maintenance Standards:
Direct method test, all outputs are real voltage/current values with standard sine wave, 50-60Hz; effectively simulates actual CT/PT status, compliant with national standards.
3. High Output Capacity:
Single unit: 10~20KVA at 220V input; max 0-1000V 20A output, max 0-600A 20V output, ideal for field maintenance.
4. Full Functions:
Tests CT/PT VA characteristic, ratio, polarity, 5% and 10% error curves, CT primary current injection and demagnetization - multi-purpose in one unit.
5. Simple Wiring:
Single power input port; only 8 test ports for all CT/PT tests, wiring methodsafe and simple, ideal for field use, reducing labor and improving efficiency;
6. Fast Printing:
Thermal printer with auto data selection for typical reports, perfect for field data comparison.
7. Large Capacity FLASH Storage:Stores 1000 test data sets, retains 10 years after power-off.
8. USB Interface:Easy connection to modern laptops.
9. Compact & Lightweight: Convenient for field use
Main Test Functions
1. CT volt-ampere characteristic test (automatic knee point calculation)
2. CT dynamic stability and short-time thermal current
3. CT rated ratio test
4. CT polarity determination
5. CT 5% and 10% error curve
6. CT secondary loop inspection
7. CT secondary AC withstand voltage test
8. CT auto demagnetization
9. PT VA characteristic (auto knee point calculation)
10. PT ratio test
11. PT polarity determination
12. PT secondary AC withstand voltage test
13. PT auto demagnetization
Main Technical Parameters
1. Power Supply: AC220V
2. VA Output: 1000V/15A (single unit)
3. Ratio Output: 600A/5V (single unit)
4. Accuracy: ≤0.5%
5. Range: CT 25000A/5A or 5000A/1A; PT 5VA~500VA
6. Dimensions: 380×260×260 (mm)
7. Weight: 24 (Kg)
Note: The above information and technical parameters are compiled and published by Yangzhou Darui Electric Co., Ltd.
