Impulse voltage test system SXCF

This impulse test system is used for carrying out standard lightning impulse voltage full wave and operation wave tests on HV apparatus such as power capacitors, clearance, bushings, power transformers and CT/PT. Main Parameters for System: ♦ Nominal voltage: 200kV/300kV/400kV/800kV or at customized ♦ Rated stage voltage: 100kV ♦ Rated stage energy: 2.5kJ ♦ Stage Impulse capacitance: 0.5µF ♦ Number of Stages: 2/3/4/8 stages at customized ♦ Impulse voltage waveform: generated when load capacitance is 300-3000pF. T1=1.2µs±30%, T2=50µs±20%, standard lightning impulse voltage full waveform of peak voltage deviation≤3%; Standard operation waveform 250 ± 20%/2500 ± 60%. These 2 impulse voltage waveform parameters and error are accorded with national requirements of GB311.1and GB16927.1 standard and IEC standard. ♦ Voltage utilization factor: Standard lightning impulse voltage waveform ≥90% when load capacitance is below 1000pF, standard operation impulse voltage waveform≥80% when load capacitance is below 2000pF. Standard operation impulse voltage waveform ≥70%. ♦ Locking range: level voltage is within the range of 20%-100%rated voltage, positive and negative locking range no less than 25%. ♦ Out-of-control rate of synchronous discharge: <5% ♦ Min.output voltage: ≥±20% of rated voltage. ♦ Instability of discharge voltage: <±1.0% ♦ Continuous time: Above 2/3 of rated voltage, continuous working when charge and discharge once every 120s. Below 2/3 of rated voltage, continuous working when charge and discharge once every 60s.