10kA Impulse Current Test System for Lightning 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.
V. Device Appearance
The equipment is equipped with an impulse generator, and the other is a measurement and analysis system, which is placed next to the generator. The communication line is connected with the computer for waveform analysis.
Complaint
