I. Overview

HZ2613 transformer short-circuit impedance no-load all-in-one machine is the latest product launched by our company. The instrument adopts today's popular ARM processor, 168M main frequency and 128M memory, which can be expanded with 4G memory card. The LCD adopts a 7-inch high-definition color touch screen, combined with the emwin display interface, making the instrument user-friendly and easy to operate, and can be operated with full touch screen without a keyboard. The instrument supports databases and can be exported via a USB flash drive or transferred to the backend computer via a data cable.

The circuit design of this instrument is exquisite and the idea is unique, which makes it have superior performance, powerful functions, small size and light weight. It can not only test the no-load parameters of the transformer, but also measure the harmonic content and waveform on site. The instrument can record the no-load test curve of the transformer to provide a reliable basis for transformer fault analysis.

2. Wiring and precautions

1. When using the instrument, please connect and operate it according to this instruction manual.

2. The ground terminal or the ground end in the power cord should be reliably grounded nearby.

3. Please enter the correct setting parameters before testing. Enter the storage serial number to save the test results under this record number. Then set various parameters according to the parameters of the transformer under test. After the settings are completed, click the Save Modification button to complete the save and enter the test interface. Select the required Test parameters (impedance or parameters), click the start button, and then slowly increase the test voltage to complete the test. When the test is over, click the end button and save the test record to complete the test.

4. The instrument is fully touch screen operated, please do not bump it.

3. Main functions and features:

1. The instrument uses a 7-inch true color LCD, which can measure electrical parameters such as voltage, current, angle, power, etc., and can display vector diagrams of voltage and current, with a clear and intuitive display on the same screen.

2. It can measure the no-load loss, load loss and other parameters of the transformer.

3. It can measure the impedance, reactance, resistance, impedance voltage percentage and other parameters of single-phase and three-phase transformers.

4. The instrument has a harmonic analysis function, which can measure the 1-32nd harmonic content of the voltage and current applied on the transformer, and can display bar graphs and voltage and current waveforms.

5. It can automatically record the no-load characteristic curves under different voltages and currents during the no-load test of the transformer, making it easy to analyze the characteristics of the transformer and iron core.

6. It has data storage and data browsing functions. The instrument supports DBF database and can store test data or browse test records according to user needs. The instrument also supports USB flash drive export function, which can export test data through USB flash drive. The database supports excel spreadsheet opening method, which is convenient for editing, printing or archiving.

7. It adopts 7-inch true color touch screen operation, emwinGUI interface, built-in 128M memory (expandable 4G memory card), supports Chinese character input, and is simple and convenient to operate.

8. Small size, light weight, accurate measurement, non-power-off calendar, clock function, test time can be stored at any time.

4. Main technical indicators

1. Voltage measurement range: 0-500V phase voltage (line voltage is 800V),

2. Current measurement range: 0.1-50A (supports external CT to expand range).

3. Measurement accuracy: 0.2% (power factor 1.0-0.2), 1% (power factor 0.2-0.01)

4. Working power supply: AC220V±15%

5. Working temperature: -10℃-40℃

6.Ambient humidity: 10%-85%

7. Volume: 320mm×230mm×140mm

8. Weight: 3.5kg (excluding test line)