Automatic square wave impulse current

Model：LCG M

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.

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Description

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.

  • color touch screen, easy operation
  • PLC control system, powerful and stable immunity system
  • controlled by manual, automatic or programmable to different test requirements
  • 10 level LC chain to consist square wave circuit, smooth waveform with little oscillatory
  • controlled silicon continuous current for charging to save energy
  • protection function, visual and audible alarm
  • measure and analyze waveform parameters automatically

Standard

  • TB/T 3074
  • IEC 61643-1
  • GB/T 11032
  • GB 18802.1
  • UL1449
  • YD-T 5098
  • YD/T 1235.2

Specifications

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 +/-, (automatic switch)
Waveform switch Automatic switch
Charging time 10s~999s
Charging voltage
instability 		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, 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 -10-+40℃
Humidity 35%-85%RH（no condensation）
Ground resistance No more than 0.5Ω
Construction Open style, control system split base system
Size of test room Depends on model（base）+3M*5M（control)
Operation table 1.8M（width）*1.1M（height）*1M（depth）
No conductive dust, no fire or explosion danger, no corrosive metal and insulation air. Wave

form of mains voltage is sine wave. The THD is <5%.
Technical parameters of standard model
Model 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

Downloads

Adobe PDF

Automatic square wave impulse current test system LCG M series Datasheet

Language: English

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