Vitrek 952i - Pulsed Voltage Withstand Testing (PULSE)

95x Series Operating Manual - May 17, 2022
Page 70 of 155
1000V
200K-50GΩ : ±2%±(R/1.6GΩ)%
200K-50GΩ : ±2%±(R/1.5GΩ)%
200K-45GΩ : ±2%±(R/1.5GΩ)%
2500V
500K-90GΩ : ±2%±(R/3GΩ)%
500K-75GΩ : ±2%±(R/2.5GΩ)%
500K-45GΩ : ±2%±(R/1.5GΩ)%
4000V
800K-120GΩ : ±2%±(R/4GΩ)%
800K-75GΩ : ±2%±(R/2.5GΩ)%
800K-30GΩ : ±2%±(R/1GΩ)%
TEST TIMING
Ramp 0.01 to 9999sec
50kV/sec max slew rate
<(± 1% ± 0.1sec) accuracy with typical loads
0.5sec minimum for 957i only
Dwell 0.02 to 9999sec or user terminated
<(± 0.05% ± 20ms) accuracy (add 100ms for dwell time >2 sec)
Delay 0.00 to 9999sec
<(± 0.05% ± 20ms) accuracy
DISCHARGE
Fixed Discharge Always selected
951i,952i,956i : Nominal loading 7MΩ
953-5i : Nominal loading 13MΩ
957i : Nominal loading 17MΩ
Controlled Discharge Auto-selected resistance values in real-time during discharge
Selection Criteria : <400W power, <400J energy, <7500V, current <CNFG-TEST-MAX
DISCHARGE setting
951i,952i,956i : Nominal loading 9.5KΩ or 40KΩ
953-4i and 957i : Nominal loading 9.5KΩ or 40KΩ or 240KΩ
955i : Nominal loading 15KΩ or 40KΩ or 240KΩ
Minimum Discharge Time <(20ms + 10ms per kV) (below 7500V)
PULSED VOLTAGE WITHSTAND TESTING (PULSE)
This type of testing is performed whenever it is required to test that a device can withstand a voltage without
breakdown or arcing, but the device will not withstand the voltage for significant periods of time. An example of
this is in the testing of the voltage withstand capability of physically small resistors, in this case the resistor may
not be able to withstand the power dissipation if the voltage is applied for lengthy periods of time, so normal AC or
DC Voltage Withstand testing cannot be performed.