Testing device PN-20 with probe

The test device PN-20 is designed to test and evaluate the insulation resistance of non-energized high-voltage cable lines, insulators, couplings, motors and other equipment, as well as to test high-voltage arresters with a constant voltage of 0.5 to 20 kV. The device can be used by line personnel for operational control of the insulation condition before putting the equipment into operation after installation or repair.

Peculiarities

automatic selection of measurement ranges;
protection against connection to a non-de-energized network or sudden voltage supply during measurements;
programmable resistance measurement time from 1 to 60 minutes;
selection of the function of automatic stop of the test when a breakdown occurs;
indication of the level of residual voltage on the object after the end of the measurement and its automatic removal;
shock-resistant, dust- and moisture-proof case. Degree of protection in transport position IP67, in working position IP40;
high noise immunity in the measured circuit;
automatic switch to power-saving mode 2.5 minutes after the end of measurements;
liquid crystal display;
indication of the state of the internal power supply;
battery protection system from overcharging;
protection against incorrect inclusion;
memory for up to 50 test results.
Specifications

Setting the DC test voltage, kV

0.5 to 20 0.5 to 10 in 0.1 kV steps 10 to 20 in 1 kV steps

Resistance measurement limit

up to 20 GOM

AC voltage measurement range relative to ground, V

from 10 to 700

Leakage current readings

0.05 to 800 uA

Measuring the breakdown voltage of arresters

from 0.5 to 20 kV

Nutrition

sealed lead-acid battery 12V 4.5 Ah

Working temperature

from - 20°С to +50°С