HZ-3350D 50A Three Phase Transformer Winding Resistance Tester

Safety Measures

1.Be sure to carefully read the operation manual before using the instrument.

2.The instrument operator shall have general knowledge about the use of general electrical equipment or instruments.

3.The instrument can be used both indoors and outdoors. However, be sure to avoid using it at the following places with rain, corrosive gas, too high dust concentration, high temperature, or direct sunlight, etc.

4.The instrument is a high-precision instrument; therefore, it is required to avoid severe vibration of the instrument, and some shock absorption measures shall be taken during transportation.

5.Repair, maintenance and commissioning of the instrument shall be performed by professional personnel.

6.To ensure personal safety, a reliable ground wire shall be connected before turning on the power; in addition, the ground wire shall be removed after removing the power.

7.It is forbidden to dismantle and move test clips and power supply lines during test. The test lines can be removed after discharging alarm sound is ended upon test completion.

8.For no-load voltage regulation winding, it is forbidden to switch the no-load tap changer when test is being conducted or discharging is not completed.

9.When the power supply suddenly fails during the test, the instrument will start to discharge automatically. At this time, it is forbidden to immediately remove the test lines; they can be removed after the discharging alarm sound is ended.

Specifications

1. Output current: automatic, 50A, 20A, 10A, 5A, 2A, 1A, 200mA, 100mA, 20mA

2. Range:

Automatic (0.1-50A) 0 - 200Ω (3-phase  0 - 120Ω)

50A 0 – 0.4Ω (3-phase 0 – 0.2Ω)

20A 0.0005 – 1.0Ω (3-phase 0.001–0.6Ω)

10A 0.001 – 2.0Ω (3-phase 0.002–1.2Ω)

5A 0.002 – 4.0Ω (3-phase 0.005–2.5Ω)

2A 0.005 – 10Ω (3-phase 0.01 – 6.0Ω)

1A 0.01 – 20Ω (3 phase 0.02 - 12Ω)

200m A 0.1 – 100Ω (3 phase 0.1 - 60Ω)

100m A 0.5 – 200Ω (3 phase 0.5 - 120Ω)

20m A 10 – 20kΩ (only single-phase test)

Accuracy: 0.2%±0.1μΩ

Minimum resolution: 0.01μΩ

After-sales Service

Product shall be repaired and replaced free of charge in case of product quality problem in 12 months from purchase date, guarantee and technical service are provided for whole service life of the product.In case any abnormal condition or fault is found in the instrument, please contact the company in time so that we can organize most convenient treatment plan for you.

Instrument Completeness