ZNR-2 is current source of rated power 7.5 kVA, which generates alternating current up to 60 A, with arbitrary long time.
Selector is equipped with digital ammeter and voltmeter for output values measurements.
High value of current enables obtaining measuring voltages higher than noise voltage level and achieving of required measurement accuracy.
Two ranges of output voltage and changeable polarity considerable extend its usability. Modular-designed device is placed on hand truck, which enables easy transportation and movement.
Electrocution voltage selectors are used for forcing measurement current in tested earth electrode system, during touch and step voltage measurements, on soils with decreased conductivity (rocks, sands). Voltage selector and electrocution voltage meter MNR-1, which provides touch and step voltage measurements, form complete set for earth system testing.
||150, 300 V AC|
||smooth up to 60 A AC|
|Operation temperature||-5 ºC ÷ +40 ºC|
||230 V or 400 V, 50 Hz|
|Dimensions||465 x 660 x 880 mm|
|Weight||about 75 kg|
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