It is designed for use as a converter of high-voltage direct current (DC) and industrial-frequency alternating current (AC) in power grids and high-voltage laboratories for testing. It can also be used for large-scale conversion of high pulse voltages combined with switching and lightning waveforms. The frequency range of high-voltage AC/DC conversions can be extended from 1 Hz to 20,000 Hz.

The DN400 voltage divider is based on a resistive-capacitive converter (RCC) design. The high-voltage legs are assembled from RC assemblies. The low-voltage leg is assembled from capacitors connected by parallel and shunt resistors. The RC assembly of the divider is housed in a dielectric housing. The top and bottom of the housing cover have openings for cooling the divider components. A low-voltage arrester is installed in the arm to protect against overvoltages. The coaxial cable connected to the divider output and the measuring instrument is equipped with bayonet connectors. The DN400 capacitive-ohmic divider, with a measurement error of 1%, can be used with both the IPN-2E digital instrument and other measuring instruments. The DN400 divider has no design elements, ensuring a simple and lightweight design. The use of modern adhesive and protective materials, high-precision resistors and capacitors ensures high mechanical and electrical strength, absence of partial discharges, and stability of the divider's characteristics over a wide temperature range. When changing frequency (specifically, from 45 Hz to 2.5 kHz), the divider's division ratio complies with the requirements of GOST 13109-97. At operating temperatures (+5 to +40°C), the additional division error coefficient Kdel remains within the limits of the basic error. 

Applications of the DN400 high voltage divider:

Measuring high DC and AC voltages in laboratory and field conditions during electrical equipment testing;

Overall dimensions (height x width x depth), mm, no more than

655 x 150 x 250

Weight, kg, no more than 9