GOZ-GM-20kV Series Adjustable digital high voltage megger / megameter/ meg ohm meter
GOZ-GM-20kV series adjustable digital high voltage meg ohm meter is designed to solve the high-voltage substations and power plants on-site strong interference testing electrical characteristics of the insulation resistance of large high-voltage transformer, electrical appliances, remote power cables or laying cables, and also widely used in wide range of fields electrical insulation resistance characteristic measurements. The adjustable high voltage digital megger has advantages of testing high voltage and large power. The tested objects are with power frequency induction high voltage leak or strong interference, for the personal safety, firstly a ground wire should be connected before using the meter.
Also called: Adjustable high voltage megger, meg ohm meter, digital megger, high voltage megameter
1. Digital megger has strong electric field induced anti-interference ability up to 2mA (50Hz), known to accommodate 500,000V substation site wire measuring and 500,000V transformer insulation resistance parameters testing.
2. Short-circuit current test power > 5mA, maximum 15mA. Adapt to large-capacity, high inductance test.
3. Resistance measurement has wide range, from 0.5MΩ ~ 200000MΩ. Accurate reading, high resolution.
4. Wide supply voltage range, it can choose 0.25,0.5,1,2.5,5,10,15kV, and also from 0V smooth continuous adjustment to the required voltage.
5. The digital meg ohm meter has timing function to remind users recording, and also analyze absorption ratio and polarization index of measured object.
Specifications
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Model
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Testing voltage
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Voltage accuracy
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Short circuit current
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GM-5kV
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0～0.25、0.5、1、2.5、5kV
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±(5%+10V)
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＞5mA
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GM-10kV
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0.5、1、2.5、5、10kV
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±(5%+10V)
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＞5mA
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GM-15kV
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1、2.5、5、10、15kV
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±(5%+10V)
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＞5mA
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GM-25kV
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0.5、1、2.5、5、10、25kV
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±(5%+10V)
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＞5mA
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Range and accuracy
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Range (limit voltage)
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Effective resistance measurement range
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Accuracy
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25MΩ/500V
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0.5～19.99MΩ
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±(5%+5字character)
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250MΩ/1000V
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5.0～199.9MΩ
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±(5%+5 character)
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2GΩ
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0.05～1.999GΩ
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±(5%+5 character)
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25GΩ
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0.5～19.99GΩ
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±(5%+5 character)
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250GΩ
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50～199.9GΩ
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±(10%+10 character)
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2500GΩ
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50～1999GΩ
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±(25%+10 character)
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GΩspan calibration voltage: 2.5kV
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Electric anti-interference ability
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2mA(50Hz)
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Timing & alarm
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Stopwatch displays a maximum of 19 minutes and 59 seconds with 20 minutes a cycle. Sound reports in 15 seconds, 60 seconds and every minute. To point reports short sound, and resistance reading lasts for 5 seconds, while the measured resistance is less than the lower limit of the range, the reading is invalid with continuous sound alarm.
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Show table
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Three and a half LCD digital meters respectively show the test voltage, resistance and time.
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Power supply
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Enclosing 1.2V / 2000mAh Nimh rechargeable batteries 10, DC12V power supply. With AC (50 / 60Hz) 220V access port for battery charging or floating charge.
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Using condition
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Temperature: 0～40℃
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Relative humidity：20～90%
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Size
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315×240×155mm3
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Weight
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5kg
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