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HV Hipot Electric Co., Ltd.

Earth Resistance Tester, Resistance Tester, Insulation Resistance Testers manufacturer / supplier in China, offering Earth Resistance Tester for Ground Grid, Automatic AC Hipot Test Set, Ohmmeter — — Contact Resistance Test Set GDHL-100 and so on.

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Earth Resistance Tester for Ground Grid

FOB Price: Get Latest Price
Min. Order: 1 Piece
Production Capacity: 1000PCS/Year
Transport Package: Wooden Case
Payment Terms: L/C, T/T, Western Union

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Basic Info
  • Model NO.: GDRK-5A
  • Maxcapacity: 0-200ohm
  • Load Way: Electronic Load
  • Display: Digital
  • Weight: 0-100Kg
  • Measurement Range of The Impedance: 0-200ohm
  • Measurement Error: ± (Reading ×1%+0.002ohm)
  • Frequency of Test Current: 45Hz and 55Hz
  • Maximum Output Voltage: 200V
  • Trademark: HV Hipot
  • Origin: Wuhan China
  • Type: Test and Measurement Instruments
  • Accuracy Grade: 1
  • Loading Method: Dynamic Load
  • Control: Manual Control
  • Power Source: AC220V
  • Resolution: 0.001ohm
  • Waveform of Test Current: Sine Wave
  • Maximum Output Current: 5A
  • Power Supply: AC220V±10%, 50Hz
  • Specification: ISO, SGS
  • HS Code: 9030332000
Product Description
General information
GDRK-5A is applicable for testing power frequency characteristic parameters such as the power frequency earth impedance, contact voltage, step voltage, transfer potential and electric potential gradient of the site ground surface etc.; and the soil resistivity of all kinds of earthing devices. 
With the technique of anti-interference, this instrument can accurately obtain data under 50Hz power frequency in strong interference environment. The test current is relatively low (maximum 5A) and will not cause the over-potential of earthing devices during the testing. Meanwhile, as the tester has strong anti-interference ability, so that the measurement can be done with power. 

l The measured power frequency has fine equivalency. And the waveform of test current is sine wave. Difference between the test frequency and power frequency is only 5Hz. Measurement shall be done by adopting 45Hz and 55Hz frequencies. 
l The interference capacity of voltage to ground is much strong. This instrument measures by adopting the non-power-frequency method. Combining with the modern technique of wave filtering by software and hardware, it has strong anti-interference ability. Tested data is stable and reliable. Error caused by 30V power-interference voltage shall only be 0.002Ω.
l High accuracy. It can be used to measure large scale ground grid with small earth impedance. 
l It can measure all characteristic parameters of earthing devices stipulated by relevant standards. It can not only measure the ground impedance, but also the resistive and reactive components. 
l Site interference can be measured, which is convenient to estimate measurement error. 
l Disconnection alarm function, to avoid inaccurate measurement. 
l Easy operation. Directly display measurement result on LCD screen.
l 50 groups of measuring data can be saved, with mini printer.
l No need to use high current cable.
l Small size, easy to carry.
Technical Specifications
l Measurement range of the impedance: 0-200Ω
l Resolution: 0.001Ω
l Measurement error: ± (reading ×1%+0.002Ω)
l Interference capacity of voltage to ground: error caused by 30V power-interference voltage shall be no more than 0.002Ω (when the test current is no less than 3A).
l Waveform of test current: sine wave
l Frequency of test current: 45Hz and 55Hz
l Maximum output current: 5A
l Maximum output voltage: 200V
l Requirement of measurement wire: sectional area of copper core for the current wire ≥ 2.5mm2
   sectional area of copper core for the voltage wire ≥ 1.0mm2
l Power supply: AC220V±10%, 50Hz
l Environment to use: temperature: -10ºC~40ºC; relative humidity: <90%
l Overall dimension: 440×350×310
l Weight of the instrument: 10.5kg
Earth Resistance Tester for Ground Grid
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