ZXR-40A Transformer
Winding Resistance Tester
Страница 1: ...ZXR 40A Transformer Winding Resistance Tester ...
Страница 2: ...1 CONTENT 1 GENERAL 2 2 PERFORMANCE INDEX 3 3 PANEL DESCRIPTION 3 4 TESTING AND OPERATING METHOD 4 5 PRECAUTIONS 10 6 TROUBLESHOOTING 10 7 TRANSPORTATION AND STORAGE 10 8 UNPACKING AND INSPECTION 11 9 OTHERS 11 ...
Страница 3: ...gle phase measurement is recommended Caution The three phase measurement result doses not include the resistance value of the neutral lead Therefore it is suggested to at least verify one data using the single phase testing method for each phase after completing the measurement of three phase resistance value so as to determine if the neutral lead is normal 1 General This fast DC resistance tester...
Страница 4: ...Single phase 1A 5A 10A 20A 40A Three phase 1A 5A 10A 20A Measurement scope Single phase 1A 10 mΩ 20Ω 5A 1 mΩ 4Ω 10A 1 mΩ 2Ω 20A 1 mΩ 1Ω 40A 1 mΩ 0 5Ω Three phase 1A 10 mΩ 6Ω each phase 5A 1 mΩ 1Ω each phase 10A 1 mΩ 0 6Ω each phase 20A 1 mΩ 0 3Ω each phase Measurement accuracy 0 2 Full span 2 words Maximum resolution 0 1μΩ Data storage capacity 150 groups Power supply AC 220V 22V 50Hz 2 Hz Working...
Страница 5: ... definition of the five multi function key presses under the current state given in the key definition zone on the right as shown in the figure below 2 0 0 7 0 1 0 1 Set Measurement mode three phase Measuring current 20 A View Wiring Diagram Mode Current Measure 1 4 0 2 5 1 5 Contrast regulation of LCD 6 Power socket the power input of the complete unit with built in fuse tube The fuse tube is 10A...
Страница 6: ... be displayed in the zone of Schematic Wiring Diagram as the reference for actual wiring Current key press Sets the size of testing current In case of the single phase or two phase measurement the current 1A 5A 10A and 20A can be selected You may select suitable measuring current by referring to the related parameters listed in the technical indicators as the reference Measure key press After the ...
Страница 7: ... wait a moment Current tap 01 Print Re test Exit 1 4 0 2 5 1 At this time the current of the winding starts to increase If the charging progress strip and the current display value stand still for a long time it indicates that the value of the resistance value to be measured is probably beyond the measuring scope of the current so it is not able to reach its set value At this time press Exit key p...
Страница 8: ... doubt about the data press Retest button to carry out the measurement and calculation again When measuring the on load voltage changing transformer after the testing data of one tapping position becomes stable the on load tapping switch may be switched to the next tapping position without discharging to conduct the measurement over again At this time the resistance value of the winding will chang...
Страница 9: ...0 0 A The battery is charging please wait a moment Current tap 0 1 Print Re test Exit 1 4 0 2 5 1 At this time the current of the winding starts to increase If the charging progress strip and the current display value stand still for a long time it indicates that the value of the resistance value to be measured is probably beyond the measuring scope of the current so it is not able to reach its se...
Страница 10: ...ase of any doubt about the data press Retest button to carry out the measurement and calculation again The maximum display scope of the imbalance rate is 50 If such scope is exceeded only 50 will be display When measuring the on load voltage changing transformer after the testing data of one tapping position becomes stable the on load tapping switch may be switched to the next tapping position wit...
Страница 11: ...se the same model as this instrument 6 Troubleshooting Fault phenomenon Cause analysis Solution Remarks There is no display after switching on 1 The power supply is not switched on Switch on the power supply Replace with the fuse tube of the same model Do not substitute it with the fuse tubes of other models 2 The 10A fuse tube of the instrument is not properly fitted or the circuit is open Fit or...
Страница 12: ...eep the equipment package and damping materials so that you can use them for future transportation and storage Inspection content Take out the equipment and check and count the equipment and fittings against the packing list In case of any shortage please make contact with our company We will give serve you as soon as possible 9 Others The warranty period for the whole set of this product is one y...
