1
I.Adoption standard
The HZ-9003C multifunctional partial discharge tester is designed per the following
standards:
GB/T 7354-2003 Partial discharge measurement
GB 4793.1-2007 Safety requirement for electric equipment for measurement, control, and
laboratory use- Part 1: General requirements,
GB/T 2423.8-1995 Environmental testing for electric and electronic products,
GB 2900 Electrotechnical terminology
GB/T 16927 High voltage testing techniques
DL/T 356-2010 Calibration specification of partial discharge measuring devices
DL/T 417-2006 Guide for Partial Discharge Measuring of Power Equipment
IEC1000 Electromagnetic compatibility
II.Operation Notice
1.Read the manual carefully before operating the measuring device.
2.When use different sensors for measurement during the testing, should setup correct
parameters at the “ parameter settings” to ensure the measurement accuracy.
3. If needs to replace sensors during the testing, should turn off the “ output voltage”.
4. During the testing, should handle the device with care, to avoid any bumps.
5.After testing, please turn off the power and then charge the device.
III.Overview
HZ-9003C multifunctional partial discharge tester is used for on-line detection and location
of partial discharge of HV equipment, which is designed based on our many years
experiences in the partial discharge measuring fields.
The system is equipped with composite TEV sensors, ultrahigh frequency sensors,
High-frequency current transformers and high sensitivity ultrasonic sensors to collect
partial discharge signals at high voltage equipment. The system adopts multilevel detect
frequency reduction techniques to reduce the discharge frequency of the signals,
meantime using high-speed AD conversion circuit to complete the signal digitization, also
by using digital signal processing, adaptive filtering interference signal processing