2 apply to high-voltage transmission lines of 35kV distribution power system lightning online monitoring;?
3 pulse bandwidth: 30MHz the the lightning wave head time response resolution of less than 100ns?:<0.1us;
4 secondary measurement interface: metal shielded enclosure 50Ω or 75Ω matched impedance, coaxial cable connector output;?
5 once the high voltage terminal interface: metal pressure plate fastening bolts bus electrical connection; single-phase direct connection;?
6 nonlinearity: ± 1%;?
7 Measurement Uncertainty: ± 1%;?
8 Operating environment: outdoor work, waterproof, moisture-proof, high temperature resistant, cold-resistant and high altitudes; outdoor installation type;?
9 need to collect lightning over-voltage and grid frequency over voltage, operating frequency range is 35Hz~5MHz;?
10 long uninterrupted
11 installed in the substation as the lightning impulse measurement sensor to the control room computer data collection agencies.?