Technical parameters of LVG3000 |
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Output waveform |
A waveform |
B waveform |
C waveform |
D waveform |
Front time |
1000(+500)kV/μs |
1.2μs±20% |
2μs±20% |
50-250μs |
Decay time |
-- |
50±20% |
-- |
大于2000 |
peak efficiency |
>90% |
>90% |
>80% |
>60% |
Charging voltage |
200kV (two-side charging) |
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Levels |
15 |
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Discharging switch |
copper ball , three-gap ignition |
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Switch type |
linear driving 0~100mm adjustable, accuracy 0.1mm |
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Waveform shaping |
Form a long wave tail by Crowbar feedback circuit |
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General data |
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Power supply |
AC220V 100A |
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Charging voltage |
20~200kV |
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Polarity |
+/- |
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Voltage measurement |
Damped voltage divider |
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Features: |
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l LVG 3000 with open style main circuit design and H shaped tower structure to achieve a compact size |
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l Artistic and simple appearance |
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l parallel charging and series discharging by Max generator |
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l Automatically adjust ball gap distance within the charging voltage, 0.1mm resolution adjustable |
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l Automatic safety protection procedure, audible and visual alarm |
Test waveforms include 6 waveforms: A, AH, B, C, C* and D, shown as below:
Component A: peak current 200kA±10%, action integral 2×106A2·s±20% (within 500μs), rise time (10%-90% before peak)≤50μs, decay to 1% of peak wave≤500μs. Current could be one-way or oscillatory.
Component AH: peak current 150kA±10%, action integral 0.8×106A2·s±20% (within 500μs), rise time (10%-90% before peak)≤37.5μs, decay to 1% of peak wave≤500μs. Current could be one-way or oscillatory.
Component B: current amplitude average 2kA±10%, max. electric charge<10C ± 10%, duration ≤5ms. Current could be one-way square wave or replaced by exponential current or linear decay current.
Component C: current amplitude 200-800A, electric charge 200C ± 20%, duration 0.25-1s. Current could be one-way square wave or replaced by exponential current or linear decay current.
Component C*: current amplitude average≥400A, duration = dwell time of combination wave -5ms. Duration of combination wave: 1-50ms. Current could be one-way square wave or replaced by exponential current or linear decay current.
Component D, peak current 100kA±10%, unidirectional current or oscillatory current, rise time (10%-90% before peak)≤25μs, decay to 1% of peak ≤500μs, action integral 0.25×106A2·s±20% (within 500μs).
MIL-464C/DO-160G Section 23 Aircraft lightning protection system configuration:
This lightning system includes 5 set control system, 1 set measurement analysis system, 4 generators used to produce four components A, B, C, D, communication among generators by industry field bus to achieve independent experiments for 4 generators and centralized total control function.
Generator A and D use non-gap self-adaption Crowbar units, for non-gap Crowbar switch, there is no need to trigger by impulse voltage generator, no need to ignite by secondary delay control, it is a real self-adaption trigger. For non-gap switch, the noise is reduced greatly and the output reliability of equipments is improved.