Transformer Loss Parameter Tester

HM5006 transformer loss parameter measuring instrument, the instrument can output low-voltage three-phase sine wave inverter power supply under the condition of no external AC power supply to test the transformer capacity. The instrument itself can provide working power for the test part without external power supply, so that the transformer capacity Testing is more convenient and quicker.

The transformer capacity test cannot be connected to an external AC test power supply; the transformer characteristic test needs to be connected to an external AC test power supply with sufficient power for the test.

The transformer loss parameter measuring instrument is equipped with a battery remaining battery monitoring function to prevent the battery from over-discharging and prolong the battery's service life.

The transformer loss parameter measuring instrument not only expands the capacity test range, but also visually displays the scope of reference to the national standard, which makes the transformer capacity test and test more intuitive. It can perform capacity test and type judgment of SG, SC series dry-type distribution transformers and single-phase distribution transformers.

The instrument can be used in conjunction with an external test power supply, and can perform no-load and load tests of distribution transformers according to the requirements of the national standard, and determine the capacity and type of the transformer.

1. The instrument can output a three-phase sine wave inverter power supply, and can test the transformer capacity without external AC power supply, and automatically determine the transformer capacity.

2. The built-in battery of the instrument can work without external power supply and can be charged by an external adapter charger.

3. The instrument can judge the capacity of single-phase, three-phase arc furnace transformers and special transformers.

4. The instrument can judge the capacity of dry-type transformers and single-phase transformers.

5. It can judge the type of national standard S-type, SZ-type, SH-type, SG-type, SC-type, SCR-type, SGH-type, SGZ-type, D-type, and DH-type 10kV/20kV/35kV transformer types.

6. In order to facilitate the measurement and ensure the safety of the transformer, the capacity of the transformer can be measured at a non-rated tap.

7. The instrument is equipped with a real-time clock to record the test time at any time.

8. This instrument can measure transformer no-load loss, no-load current, load loss, impedance voltage and other parameters, and simultaneously measure three-phase voltage, current true RMS and active power. Transformer no-load test can automatically capture set point test data.

9. CT and PT can be connected to measure large transformers, and all data display direct reading values.

10. No-load test can accurately measure the parameters under the set value without voltage correction.

11. The load test can be measured under reduced current, and the current is automatically converted to the rated value.

12. The instrument automatically converts the test results of load loss and impedance voltage to 75, 80, 100, 115, 120, 145°C according to different types of transformers.

13. Adopt 7-inch large-screen touch LCD, full Chinese-character menu-oriented man-machine interface, tabular data management, and Chinese-character prompts are easy to operate.

14. The instrument can automatically determine the rated capacity of the transformer according to the test parameters, and calculate the deviation from the standard.

15. The instrument has a software calibration function, which can perform automatic calibration of voltage, current, power, and phase.

16. Using high-speed thermal printer, can print test results on site.

17. It can save 1000 sets of transformer capacity test and 1000 sets of transformer characteristic test data, which will not be lost after power failure and can be consulted at any time.

18. The instrument can monitor the battery power, ambient temperature and humidity, and display the battery power percentage.

19. The instrument has voltage and current harmonic test functions, monitors 2-25th harmonics, and displays harmonic reports and histograms.

20. The test data can be directly read into the PC through the USB port, or transferred to the USB flash disk, and read into the PC from the USB flash disk. The PC background management software has the functions of reading data, data management, report generation and printing.

21. With multiple interfaces of Bluetooth, WIFI (optional), GPRS (optional), it can communicate with phones or tablets. Users can directly control the instrument through phones or tablets. Data can be stored in phones or tablets. The tablet computer software has functions such as positioning, photographing, manipulation and data management. (This function is an extended function)

1. Voltage range: 0～750V error <± (0.2% reading + 3 words)

2. Current range: 0～100A error＜±(0.2% reading+3 words)

3. Power measurement:

COSΦ= 0.5 ～ 1.0 Error <± (0.5% reading + 0.05% range)

COSΦ= 0.2 ～ 0.5 Error <± (1.0% reading + 0.1% range)

4. Capacity measurement range:

6 ～ 11/0.4kV power transformer: 30 ～ 2500 kVA

6 ～ 11/3～6.3kV power transformer: 630 ～ 6300kVA

20kV power transformer: 30 ~ 2500 kVA

35kV power transformer: 50 ~ 31500 kVA

60 ～ 66 kV power transformer: 630 ～ 63000kVA

110kV power transformer: 6300 ～ 80000 kVA

SJ1/SJ2/SJ6 type power transformer: 20 ~ 1800 kVA

SJL1 type power transformer: 30 ~ 1600 kVA

SG, SC type/10kV grade dry-type transformer: 30 ~ 1600 kVA

SG, SC type/35kV grade dry-type transformer: 50 ~ 31500 kVA

Type D single-phase transformer: 5 ～ 160kVA

6 ~ 110 kV single-phase or three-phase special transformer: 30 ~ 80000kVA

5. Type judgment range:

10 kV power transformers: S7, S9, S11, S13, S15, SH, D9, D10, D11, DH, SG(C)8, SG(C)9, SG(C)10, SZ7, SZ9, SZ11, SJ1

20 kV power transformer: S7, S9, S11, S13, S15

35 kV power transformer: S7, S9, S11, SZ7, SZ9, SZ11

6. Working environment temperature: 0 ～ 40 ℃ Relative humidity: ≤ 90%

7. External dimensions of the instrument: 320×240×130 (mm) Weight: about 3 kg

8.Rated output capacity of three-phase inverter power supply: 100 VA

9. Rated output current of three-phase inverter power supply: 5A (RMS)

10.Rated output frequency of three-phase inverter power supply: 50±0.01 Hz

11.Rated battery voltage: 16.8 V battery capacity: 6000mAh

12.Charging power supply voltage: 100-240V (50Hz/60Hz) Charging current: 1.5 A

IV. Judgment method of transformer capacity

The instrument can measure and judge S7, S9, S11, S13, S15, SZ7, SZ9, SZ11 series 10kV power transformers, S7, S9, S11, SZ7, SZ9, SZ11 series 35kV power transformers, SG8, SG9, SG10, SC8, Capacity and type of SC9, SC10 series dry-type distribution transformers and D9, D10, D11 series single-phase distribution transformers. It can test the capacity of S series 35kV, 63kV, 110kV power transformers, SG(C) series 35kV dry-type transformers, three-phase and single-phase electric furnace transformers.

1. Carry out the no-load test of the transformer as usual.

2. Carry out transformer load test. If the set capacity is close to the actual capacity, the test can be carried out according to the prompt current and 50% to 80% of the rated current. The set capacity and the actual capacity are far away or difficult to determine. You can test according to the voltage, that is, the test voltage is given to 2.5~3.5% of the rated voltage (the test voltage is 250V～350V when the rated voltage is 10kV, and the test voltage is 6kV. Measure the load loss and other parameters when the voltage is 150V ~ 200V).

3. Enter the "transformer test record analysis" menu, the instrument will automatically judge the transformer capacity. It also displays the judgment result, as well as the standard parameters such as transformer no-load loss, no-load current, load loss, impedance voltage, and the deviation of the test value from the standard value. The transformer reference type and reference capacity can be selected, and the instrument will display the characteristic parameters of the transformer under different capacities and the deviation from the standard value. Press the "Save" button to save the judgment result.

4. For non-standard and electric furnace transformers, the rated impedance of the transformer must be input, and the load test must be performed at the rated tap. Generally, the rated tap of a power transformer is an intermediate tap, and the rated tap of an electric furnace transformer is a tap of the highest output voltage. During the load test, the low voltage must be reliably short-circuited with a special short-circuit bar, and the short-circuit point of the electric furnace transformer should be as close as possible to the root of the outlet.

5. When the transformer tap position is at a non-rated tap, you can set "Test tap" under the "Test product parameter setting" menu for capacity measurement, but measurement at a non-rated tap may introduce errors. Therefore, it is recommended that users set the transformer to the main tap for measurement when conditions permit.

If the transformer characteristic test is not performed on the test product, only the transformer capacity test item is performed. The test product type judged by the instrument is the reference type, which is for reference only.