286 User’s Manual TOS93 Series
Specifications | Withstanding voltage test section
Withstanding voltage test section
Applicable models for ACW: All models
Applicable models for DCW: , , ,
Output function
9301PD
9303LC
Item Specifications
AC output
section
(ACW only)
Output range 0.050 kV to 5.000 kV
Resolution 1 V
Setting accuracy ±(1.2 % of setting + 0.02 kV) (at no load)
Max. rated load
1
500 VA (5 kV/100 mA)
Max. rated current 100 mA (when the output voltage is 0.2 kV or higher)
Transformer rating 500 VA
Output voltage waveform
2
Sine
Distortion 2 % or less. (when the output voltage is 0.5 kV or higher and no load or
a pure resistive load is connected)
Crest factor
± 3 % (800 V or more)
Frequency 50 Hz/60 Hz
Accuracy ±0.1 %
Voltage regulation ±3 % or less (when changing from maximum rated load to no load)
Short-circuit current 200 mA or more (output voltage 0.5 kV or higher)
Output method PWM switching
DC output
section
(DCW only)
Output voltage range 0.050 kV to 7.200 kV
Resolution 1 V
Setting accuracy ±(1.2 % of setting + 0.02 kV)
Max. rated load
*1
100 W (5 kV/20 mA, 7.2 kV/13.9 mA)
Max. rated current 20 mA
Ripple 7.2 kV no load 20 Vp-p (TYP)
Max. rated load 50 Vp-p (TYP)
Voltage regulation 1 % or less (when changing from maximum rated load to no load)
Short-circuit current 100 mA (TYP) (200 mA peak)
Discharge function Forced discharge after test completion (discharge resistance: 125
kΩ)
Start voltage The voltage at the start of the test can be set.
Setting range 1 % to 99 % of the test voltage
Resolution 1 %
Output voltage monitor function If the output voltage exceeds ±(10 % of setting + 0.05 kV), the output is
turned off, and the protection function is activated.
1 When tests are performed consecutively, output time limit and rest time may become necessary depending on the
upper limit setting (p.82).
2 If an AC voltage is applied to a capacitive load, the output voltage may rise higher than at no load depending on the
load capacitance. Further, waveform distortions may occur if an EUT whose capacitance is dependent on voltage (for
example, an EUT that consists of ceramic capacitors) is connected as the load. However, if the test voltage is 1.5 kV,
the effect of a capacitance of 1 000 pF or less can be ignored. Because the product’s high-voltage power supply uses
the PWM switching method, if the test voltage is 500 V or less, the switching and spike noise proportions are large.
The lower the test voltage, the greater the waveform is distorted.
2