TOS9300_Partial Discharge Test-Measurement function

ItemTOS9301PD
VoltmeterMeasurement range0.00 kV to 7.50 kV AC/DC
Resolution0.1 V
Accuracy *1±(1.2 % of reading + 5 V)
ResponseCan be switched between true rms and peak-value response.
Peak-value response in a separate system (the peak-value response is for measuring the dielectric breakdown voltage while rising)
Hold functionThe voltage measurement after a test is finished is held while the pass/fail judgment is displayed.
Electric charge measurementElectric charge measurement methodAdopts the measurement principles specified in IEC60664-1 Edition 3.0.*2
Measurement range0 pC to 10000 pC
Measurement resolution100pC range0.1pC
1000pC range0.1pC
10000pC rang1 pC
Accuracy*1 *3100pC range±(5 % of full scale + 7 pC)
1000pC range±(5 % of full scale)
10000pC rang±(5 % of full scale)
Measurement intervalDetermined based on the measured values in each cycle of an applied voltage.
Hold functionThe electric charge after a test is finished is held while the pass judgment is displayed.
Maximum electrostatic capacity of the EUT10 nF
Peak hold functionHolds the maximum value during a measurement.
Filter functionA low-pass filter can be inserted into the electric charge measurement circuit.
Discharge inception voltage, discharge inception voltage measurementMeasures the voltage at which discharge exceeding a preset electric charge starts and the voltage at which discharge ceases (Adopts the measurement principles specified in IEC60664-1 Edition 3.0.).
Calibration (Precalibration)Calibrate using the built-in calibration capacitor (1000 pF).
Pulse countingFunctionCounts the number of pulses that have passed through the high-pass filter and makes a FAIL judgment if the count exceeds the upper limit.
Upper limit setting range1 to 100000
BPF characteristics switchingFunctionCan switch the characteristics of the band-pass filter in the electric charge measuring circuit
Center frequency100 kHz / 160 kHz / 300 kHz
Coupling capacitor0.01 μF

*1.When the pulse interval is 200 μs or more *2.
Can be used to conduct tests based on the principles of IEC 60664-1 Edition 3.0, including the test circuit (for earthed test specimen) and the test voltages. However, does not fully meet the accuracy requirements. *3.When Band Pass Filter is set to 160 kHz.