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TPDZC transformer low-voltage short-circuit impedance tester is mainly used for low voltage short-circuit impedance test in factory, overhaul, pre-test and hand-over test of power transformers (single-phase or three-phase). The principle is short-circuit impedance of power transformer in the field. (%) Test, and compare with nameplate value or factory value, can find defects such as winding displacement and deformation caused by serious fault current during transportation, installation and operation after the factory test.
TPDZC transformer low-voltage short-circuit impedance tester is simple, the test results are very intuitive, is a field test transformer for rapid deformation of the winding test equipment.
Second, the main technical indicators
1 Voltage measurement range: 5V to 400V Measurement accuracy: 0.2 class Current measurement range: 0.1A to 20A Accuracy: 0.2 Level 2 Conditions of use Ambient temperature: -10°C to 50°C
Environmental humidity: ≤85%RH
Working power supply: AC220V±10%
Power frequency: 50(±10)Hz
3 test results to determine the reference:
Impedance error is within ± 2%: running impedance transformer error ± 2% - ± 5%: periodically detecting an impedance transformer error exceeding ± 5%: transformer outage should <br> <br> three main features:
1, without an external regulator, you can measure the test item.
2. The instrument uses a 220V low voltage power supply to automatically apply current to the three-phase high voltage winding of the transformer. The data is collected synchronously and the impedance error percentage is automatically calculated. The test result is very intuitive.
3, with output current limiting function, applicable to any impedance test product.
4, the operation of the instrument is very simple, one-time wiring, without the inverted test line can be completed automatically three-phase test.
5. For three-phase transformers, the instrument can be used for single-phase testing or three-phase testing. It can be tested manually or automatically.
6. It has the function of measuring zero-sequence impedance.
7, with the function of measuring inductance.
8, the use of large-screen LCD display, full Chinese menu-style operation, according to the screen prompts to complete the test.
9, with print, storage function; with 232 serial and U disk storage, easy to analyze the data data.
10, simple wiring, accurate testing, high automation level, small size, light weight.
I. Product Overview