Overview
The 3ctest LCG M Series automatic square wave impulse current test system adopts two-path 10-level LC chain circuit to output square wave impulse current with 2ms duration. This system is mainly used for 2ms square wave impulse current withstand test for MOV. Controlled automatically, it is featured with high system integration and intelligence and easy operation. Setting test requirements on parameters setting page, test can be conducted with one button.
As per
- IEC 61643-1
- GB 18802.1
- GB 11032
- UL1449
- YD-T 1235.2
- YD/T 5098
| Technical Parameters | |
| Item | 2ms square wave current |
| Output peak | 1KA?2KA?3KA?4KA?5KA |
| Td duration | 2ms?-0%?20%? |
| Attenuation time | ?Td×1.5 |
| Reversed overshoot | -- |
| Wave-front oscillatory | ?5% |
| Voltage polarity | +/-,?Switch automatically? |
| Waveform switch | Switch automatically |
| Charging time | 10s~999s |
| Instability of charging voltage | Less than 1% |
| Trigger mode | Automatic or manual, single trigger available |
| Trigger malfunction rate | Less than 1% |
| Trigger range | 100% rated charging voltage |
| Display screen | 10 inch TFT color touch screen |
| Measurement display resolution | Better than 3% |
| Type of DUT | MOV, TVS, GDT, SPD or mains surge protection device |
| DUT residual voltage | ?5kV |
| Current measurement?optional? | Internal test box, Roosevelt coil measurement, BNC output |
| Voltage measurement?optional? | Internal test box, resistive voltage divider, BNC output |
| Oscilloscope | MDO3012, optional |
| Insulation strength | ≤500V RMS?common port COMMON to ground reference PE? |
| General Data | |
| Power supply | AC220V±10%?50/60Hz?10A |
| Temperature | 15~35°C |
| Humidity | 45%-75% |
| Ground resistance | No more than 0.5Ω |
| Construction | Open style, control system split base system |
| Size of test room | Depend on model?base system?+3M*5M?control system? |
| Operation table | 1.8M?width?*1.1M?height?*1M?depth? |
| No conductive dust, no fire or explosion danger, no corrosive metal and insulation air. Waveform of mains voltage is sine wave. The THD is <5%. | |
| Technical Parameters of Standard Models | |||||
| Models | LCG 1M | LCG 2M | LCG 3M | LCG 4M | LCG 5M |
| Current peak | 0.1?1kA | 0.2?2kA | 0.15?3kA | 0.2?4kA | 0.25?5kA |
| Stored energy | 30kJ | 60kJ | 100kJ | 200kJ | 300kJ |
| Charging voltage | 20kV | 20kV | 30kV | 40kV | 50kV |
| Equivalent output impedance | 20Ω,10Ω | 20Ω,10Ω | 20Ω,10Ω | 20Ω,10Ω | 20Ω,10Ω |
| DUT residual voltage | 6kV,20kV | 6kV, 20kV | 6kV,20kV | 6kV,20kV | 6kV,20kV |
| Supply mains | AC220V 32A | AC220V 50A | AC220V 50A | AC220V 100A | AC220V 150A |
| Installation | Frame style | Frame style | Frame style | Frame style | Frame style |
