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Huazheng Electric Manufacturing HZ-9003 User Manual

Partial discharge tester
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HZ-9003
Partial Discharge Tester
USER MANUAL
Huazheng Electric Manufacturing(Baoding) Co,.Ltd

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Summary of Contents for Huazheng Electric Manufacturing HZ-9003

  • Page 1 HZ-9003 Partial Discharge Tester USER MANUAL Huazheng Electric Manufacturing(Baoding) Co,.Ltd...

  • Page 2: Table Of Contents

    Contents I.Standards..........................1 II.Operation Notice........................1 III.General..........................1 IV.Measurement Procedures....................9 V.Tester Technical Specification..................22 VI.Maintenance........................24 VII.Packing List........................25...

  • Page 3: I.standards

    I.Standards The portable 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...
  • Page 4 also by using digital signal processing, adaptive filtering interference signal processing methods to ensure the reliability of the testing data. By collecting different signals produced from the partial discharge in different high equipment, the equipment operation status can be detected rapidly. The tester can be installed for detection with equipment operation and without any effect to the equipment operation.
  • Page 5 3.1 Main Tester Panel Portable PD tester main tester front panel The front panel of the PD tester main computer is divided with several function areas, according to the above number indications, 1. Wave display 2. F1- F5 Menu Buttons 3.
  • Page 6 16. VERTICAL: Adjust vertical position 17. VOLTS: Voltage shift 18. Power Switch 19. REF: REF menu 20. MATH: MATH function keys 21. CH2: display CH2 menu 22. CH1: display CH1 menu 23. UTILITY: Auxiliary function 24. SAVE RECALL: Save/Recall 25. RECORDER: Multi-meter trend chart, Oscilloscope trend chart, wave recorder. 26.
  • Page 7 3.4 Display zones 1. Portable PD tester setting status information The tester has detected a trigger and collecting information after triggering. The tester is at automatic mode and collecting wave without trigger. The tester is continuously collecting wave data by scanning method and displaying the wave data.
  • Page 8 3.6 Menu bar and operation 1. Channel selection: Press” CH1”, “ CH2” buttons to select current channel. Press CH1 to select Channel 1, then press “ Menu” button to setup or change current channel 1 data or parameters. Press CH2 to select Channel 2, then press” Menu” button to setup or change current channel 2 data or parameters.
  • Page 9 “TEV” Output ground wave signal “USS” Output ultrasonic wave signal “UHF” Output UHF signal “CT‘ Output to-ground current signal Close: If only one channel is required for detection, then the other channel can be closed. If channel1(channel2) is closed, press” Menu” to start the menu bar, select the current channel to CH1(CH2).
  • Page 10 non-professionals are forbidden to make any change. Traffic light: Change the current channel traffic light, The color can be changed per requirement. Press Traffic light F2 key to activate traffic light color setting menu, traffic light colors are green, yellow, red. Double press keys to change color. If change to “...

  • Page 11: Iv.measurement Procedures

    When select” normal” mode, the tester can update the wave display only when the effective trigger is being detected. The tester displays the existing waves before the new waves. When select “ single trigger” mode, the tester can display the waves only after first trigger.
  • Page 12 Composite TEV sensor wiring 2. Tester setting Open the tester, press and select CH1 to choose current channel to Channel1. Press “menu” button and then press F1 Key to select the” discharge detect” to TEV. Press F2 key to setup “output voltage” and “unit”. When use composite TEV sensors for detection the output voltage must be required.
  • Page 13 Non discharge signals With discharge signals When the discharge signal detected by the switchgear cabinet PD tester is too large, the display screen data will change into red, the sensor is saturated at this time. Sensor saturated 4. Background noise Instantaneous grounding voltage may occur outside of the switchgear cabinet due to the electromagnetic signal sources.
  • Page 14 from the metal bodies, otherwise it will affect the self-test. In order to make measurement, the TEV sensor shall be vertically parallel to the metal body to be measured. Once the tester is at continuous measurement mode, the readings will be display immediately. But if the TEV sensor is removed from the metal body, then the readings will not be displayed at the screen.
  • Page 15 4.2 High Frequency current transformer measurement (Mainly measure transformer inside partial discharge) 1. High frequency current transformer connection Use BNC-BNC cable to connect to the tester CH1 channel BNC port, the other end to the high frequency current transformer BNC end. High frequency current transformer connection 2.
  • Page 16 AUTORANGE Open The tester will be then at automatic trigger state, the Channel 1 screen will display the current high frequency current transformer testing discharge signals . Non-discharge Signals with discharge signals When the discharge signal is too large ,the value at the screen will then turn red, at this moment the sensor is in saturation state.
  • Page 17 5. Close After the testing, press” AUTORANGE” key to close automatic trigger till the key light is off. After closing the automatic trigger, Press” Menu off” to close the menu bar if the menu bar is popping-up. AUTORANGE Close 4.3 Ultrasonic Measurement (Mainly support the measurement of transformer inside partial discharge) 1.
  • Page 18 3. Start measurement Press” AUTORANGE” Key till the light is on to green, then the tester is about to measure. AUTORANGE Open The tester will be then at automatic trigger state, the Channel 1 screen will display the current ultrasonic sensor testing discharge signals . Non-discharge Signals with discharge signals When the discharge signal is too large ,the value at the screen will then turn red, at...
  • Page 19 Sensor Saturated 4. Measurement Open the tester and select USS (ultrasonic mode), plug the headset and adjust volume. The readings will be displayed at the screen. Take measurement of the background noise. At any case, should follow the safe distance requirement. 5.Save To save the current discharged signal, You need to prepare a USB disk to store the graphics.
  • Page 20 4.4 Ultra-High frequency measurement (Mainly measure GIS internal Partial Discharge) 1. Ultra-high frequency sensor connection Use BNC-SMA cable to connect to the tester CH1 channel BNC port, the other SMA end to the ultrahigh frequency cable “ OUT+12V” Port. Ultra-high frequency sensor connection. 2.Tester settings Open the tester, press and select the current channel to CH1, Press”...
  • Page 21 AUTORANGE Open The tester will be then at automatic trigger state, the Channel 1 screen will display the current ultra-high frequency sensor testing discharge signals . Non-discharge Signals with discharge signals When the discharge signal is too large ,the value at the screen will then turn red, at this moment the sensor is in saturation state.
  • Page 22 After the testing, press” AUTORANGE” key to close automatic trigger till the key light is off. After closing the automatic trigger, Press” Menu off” to close the menu bar if the menu bar is popping-up. AUTORANGE Close 4.5 Two Channels testing If use two channels for testing, you should connect two sensors.
  • Page 23 Two channels tester connection 2. Main tester settings Open the main tester, Press CH1 to select the current channel at channel 1, then press” Menu” key and F1 key to set “ discharge test” as TEV, Press F2 key to set “...

  • Page 24: V.tester Technical Specification

    current ultrasonic sensor testing signals. If the focus is at CH1, then the screen will mainly display the CH1 settings, If the focus is at CH2, then the screen will mainly display the CH2 settings. When the discharge signal is too large ,the value at the screen will then turn red, at this moment the sensor is in saturation state.
  • Page 25 5.3 Technical data 5.3.1 Tester measurement data requirement （1）Composite TEV measurement Sensor: Capacitive Range：0～60dBmV Resolution：1dB； Error：±1dB Detection Bandwidth：5~70MHz Pulse/Cycle maximum：655 Threshold adjustment range：3～57dB （2）High frequency current transformer Detection Bandwidth：10kHz～30MHz Signal transit mode:50Ω cable Detection sensitivity: 10pC （3）Ultrasonic sensor Measurement range：-7dBμV～68 dBμV Resolution：1dB Error：±1dB Sensor sensitivity：-65dB (0dB = 1volt/μbar effective value SPL)

  • Page 26: Vi.maintenance

    Multiple channels mode is more than 3 hours. Battery charging: Use 220V power to charge, the charging time is no more than 8 hours. The battery charge protection grade: IP54. VI.Maintenance 6.1 Routine Maintenance When store or place the main tester, don’t expose the LCD display to the direct sunlight for long time.

  • Page 27: Vii.packing List

    VII.Packing List Item Main engine Portable PD tester software TEV sensor Ultrasonic sensor (GIS) Ultrasonic sensor(transformer) High frequency current transformer Ultrahigh frequency sensor Coaxial Cable...