customized GDCL series 10kA Impulse Current Generator for zinc oxide arrester
I.General information
GDCL-10kA Impulse Current Test System is mainly used for the current flow capacity test of zinc oxide arrester in high voltage power distribution system, to generate lightning impulse current (8/20μs, etc.) Test and verification of residual voltage value, or used for other scientific research experiments.
II.Use Condition
Altitude: 1000M;
Ambient temperature: -10ºC~+40ºC, maximum daily temperature difference: 25ºC;
Relative humidity: 85% (20ºC) without condensation;
Service environment: Indoor;
No conductive dust, no fire and explosion hazards, no corrosive metal and insulating Gases;
Ground cable should be as short and thick as possible, and the loop should be grounded at one point.
III.Applied Standard
GB/T 18802.12-2014 Low-voltage surge protective devices-Part 12: Surge protective devices connected to low-voltage power distribution systems-Selection and application principles
GB/T 16927.1-2011 High-voltage test techniques -Part 1: General definitions and test requirements
GB/T 16927.2-2013 High-voltage test techniques -Part 2: Measuring systems
GB/T 17626.5-2019 Electromagnetic compatibility-Testing and measurement techniques-Surge immunity test
IEC61000-4-5 Electromagnetic compatibility (EMC) Part 4-5: Testing and measurement techniques - Surge immunity test
IEC61643.11: Low-voltage surge protective devices Part 11: Surge protective devices connected to low-voltage power systems-Requirements and test methods
IEC61643-21: Low voltage surge protective devices (SPD) Part 21: Surge protective devices connected to telecommunications and signaling networks-Performance requirements and testing methods
IV.Technical Specifications The main technical parameters of the test platform are:
Nominal voltage: 150kV
Rated voltage: 75kV
Rated energy: 22.5kJ
Impulse capacitance: 90k/4uF*2 units, two in series and in parallel.
The total number of stages: 1
Output waveform: 8/20 waveform 10kA
Rated capacitance: 4uF/90kV
The impulse current waveform parameters and their deviations meet the requirements of GB/T 311.1 and GB/T 16927.1 national standards.
Minimum output voltage: ≥±10% rated voltage
Charging voltage instability: <±1.0%
Duration of use: above 2/3 of the rated voltage, it can be continuously operated by charging and discharging every 120 seconds; below 2/3 of the rated voltage, it can be continuously operated by charging and discharging once every 60 seconds.
Complaint
