GOZ-RZ Online Monitoring Pulse voltage Divider

    The GOZ-RZ online monitoring voltage Pulse divider can operate on the grid for a long time and meet the monitoring of the following lightning pulse waveforms: standard lightning surge full-wave voltage waveform, standard lightning surge cutoff voltage waveform, standard operation surge full-wave voltage waveform, generation of steep wave pulse waveforms with steepness greater than 1000kV/μs, and steep wave pulse waveforms with steepness greater than 2500kV/μs. When performing surge measurements, it can also serve as a load capacitor and, when combined with a surge arrester, can form a surge arrester device. It can achieve clear readings from a long distance via instrument cable connected to an oscilloscope, making it safe and convenient to use.

    We, at GOZ Electric, specialize in the production and supply of online monitoring pulse dividers. With a good market reputation and a professional technical team, we have years of experience in developing pulse divider series. Our equipment comes with a three-package guarantee and can provide a testing report certified by the China Electric Power Research Institute upon request.

     Equipment aliases: overvoltage monitoring pulse divider, pulse divider, impedance divider, capacitor voltage divider.

Product features:

This series of pulse dividers can achieve clear readings from a long distance via instrument cable connected to an oscilloscope, making it safe and convenient to use. The input impedance of this series of pulse dividers is high, with good linearity, and employs special shielding technology to reduce the influence of high voltage on the displayed values, ensuring high stability. It adopts imported filling materials to achieve high stability of the product. Internally, it employs high-precision resistors and high-voltage capacitors with low tangent values, resulting in minimal local discharge. It is compact in size, lightweight, and easy to carry.

Product parameters:

High-voltage range: 0300kV/0400kV; maximum lightning pulse surge voltage;

Suitable for online monitoring of lightning in 1~35kV distribution power system high-voltage transmission lines;

Pulse bandwidth: 30MHz, lightning wavefront time response resolution less than 100ns (＜0.1us);

Secondary measurement interface: metal shielded casing, 50Ω or 75Ω matching impedance, coaxial cable connector output;

Primary high-voltage terminal interface: metal equalizing plate, electrically connected to the busbar with fastening bolts; single-phase direct connection;

Nonlinearity: ±1%;

Measurement uncertainty: ±1%;

Operating environment: outdoor operation, waterproof, moisture-proof, high temperature resistant, cold resistant, and high altitude resistant; suitable for outdoor installation;

It is necessary to collect lightning overvoltage and grid frequency overvoltage, with a working frequency range of 35Hz to 5MHz;

It can operate continuously on the grid for a long time, with a synthetic silicone rubber sheathed insulation casing. It meets the online monitoring of lightning pulse waveforms.

When used for frequency or DC measurements, it can operate continuously for 2 hours under rated voltage.

Capacitor capacitance and divider ratio deviation range: ±5%.

Dielectric loss tangent value of the capacitor, for pure capacitance divider, at 20°C, tgδ≤0.0025 under 0.4-0.5UN; no specification for the tgδ value of the impedance divider.

When the divider is used with other components to form a measuring system for measuring surge voltage, its square wave response should meet the requirements of Article 4.4.2 of GB311-83.

When used in areas with altitudes exceeding 1000m or temperature and humidity exceeding the requirements of Article 3, special designs can be customized for instruments, or the voltage can be reduced for use.