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I. Overview
With the rapid development of China power industry, electrical preventive
experiment is an important aspect of electrical power system safe operation a
nd maintenance work. Insulation diagnosis is an important tool to detect the in
sulation or fault of electrical equipment
Currently, electrical equipment (such as transformers, generators, etc.)
toward the trend of large capacity, high voltage, structural diversification and
sealing, this requires insulation resistance tester with advantages of large
capacity, strong anti-interference ability, easy to carry and so on. So we
designed and developed the series meter especially for strong interference
field test for large high voltage transformers, electrical 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 analog circuits, digital circuits,
mechanically operated advantages, achieved a leading position at the output
voltage, output current, measuring range, measurement accuracy,
anti-interference ability.
II. Features
1. With strong anti-electric field interference ability up to 2mA (50Hz), it is
suitable for 500kV substation without dismantling wire to test insulation
resistance of 500kV large-scale transformer.
2. The short-circuit current is 10mA, be suitable for testing high capacity
and high inductance.
3. Wide resistance range: 0.01MΩ ~ 1999GΩ. With high-resolution,
having accurate readings.
4. Wide output voltage range: 0.1kV, 0.25kV, 0.5kV, 1kV, 2.5kV, 5kV,
adjustable, you can smoothly adjust voltage from 0V to the desired value.
