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13

4. Turn power supply on
Turn power supply on, the indicator light above it will glow, “kV” voltage

meter display 0.00kV.

5. Test start
Press the "high voltage control" button, and the high voltage will be output

from the + terminal. The "kV" meter will display the voltage value b -.
Press the "timing switch" and the "timing" meter will start timing.

6. Test power adjustment
Adjust the "high voltage adjustment" knob to smoothly adjust the voltage

to the specified value

7. Resistance range selection
Adjust the range switch to select the desired range. If the meter

continuously give an alarm indicating the measured resistance is too low,
please adjust to low range for measuring.

8. Reading resistance value
Read the resistance value through the "MΩ / GΩ" meter. After the

resistance value is stable, press the "timing switch" stopwatch to report the
time in 15 seconds, 60 seconds and every 60 seconds after the high-voltage
output for the convenience of the operator to record.The formula of
absorptance and polarization index as follows:

absorptance = R60S/R15S-- resistance reading of the 60

th

seconds ÷

resistance reading of the 15

th

seconds.

Polarization Index = R10min/R1min-- resistance reading of the 10

th

minutes ÷ resistance readings of the 1

st

second.

9. Exit test power
Press “push to test” to exit test power, at this time “KV” display will slowly

return to zero and the stopwatch will display exit.

10. End
When the “kV” display screen shows 0.00kV, then the measured target

has completed discharge via the manual discharging rod, you can turn power

Summary of Contents for GM-5kV

Page 1: ...ind the changes in the appendix Sorry for the inconvenience If you have further questions welcome to contact with our service department The input output terminals and the test column may bring voltag...

Page 2: ...hed products being damaged In order to avoid possible danger this product can only be used within the scope of the provision Only qualified technician can carry out maintenance or repair work To avoid...

Page 3: ...ire information about the ratings Do Not Operate without Covers Do not operate this product when covers or panels removed Use Proper Fuse Only use the fuse with type and rating specified for the produ...

Page 4: ...Security Terms Warning indicates that death or severe personal injury may result if proper precautions are not taken Caution indicates that property damage may result if proper precautions are not tak...

Page 5: ...before the experiment 6 I Overview 7 II Features 7 III Main Technique Performance 8 IV Working Principle 9 V Panel layout 10 VI Operation Instructions 12 VII Problems and Solutions 14 VIII Packing Li...

Page 6: ...arted do not use manual discharge method to check the instrument After test please wait the instrument completes automatic discharge and automatically returns to zero then manual discharge can be oper...

Page 7: ...ectrical appliances remote power cables or laying cables and other electrical insulation resistance properties for high voltage substations power plants and others The instrument system combines analo...

Page 8: ...ment range and accuracy Measurement range Resistance measurement range Accuracy 20M 0 01 19 99M 5 3d 200M 5 0 199 9M 5 3d 2000M 50 1999M 5 3d 20G 0 5 19 99G 5 3d 200G 5 0 199 9G 10 3d 2000G 50 1999G 2...

Page 9: ...argeable lithium battery DC15V power supply With AC 50 60Hz special adapter access port to charge the battery 9 Operating Conditions Temperature 20 40 Relative humidity 20 90 10 Dimensions 315 240 180...

Page 10: ...kV meter 16 M G meter 17 time meter Note 1 HV output terminal it is also called a line terminal it uses 2 high voltage cable to connect measured target such as the transformer motor windings and cabl...

Page 11: ...V the indicator light is red and the indicator light goes out gradually with the increase of battery voltage 8 Charger input When the working voltage is lower than 12V the indicator light is red and t...

Page 12: ...a manual discharging rod All these are safe you can connect wire For some measured targets suffering strong interference due to power leakage such as substations power plants before wiring please comp...

Page 13: ...easuring 8 Reading resistance value Read the resistance value through the M G meter After the resistance value is stable press the timing switch stopwatch to report the time in 15 seconds 60 seconds a...

Page 14: ...plifier damage Replace CA3140 op amp on high voltage circuit board 6 Resistance displays a fixed value 1 or other fixed value Amplifier damage Replace double integral AD conversion Manifold 7 Resistan...

Page 15: ...15 VIII Packing List 1 Instrument Host 1 2 HV Cable 1 3 Connect Line 4 Ground wire 5 Power Cord 6 Reference Resistance 1G 2 1 1 1 7 The instruction manual 1 8 Inspection report 1 9 Certificate 1...

Page 16: ...ing diagrams for substation transformer and cable 500KV power transformer LV winding insulation test wiring diagram 500KV power transformer HV winding insulation test wiring diagram Shielded cable ins...

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