Related Manuals for Huazheng HZZGF Series
Summary of Contents for Huazheng HZZGF Series
- Page 1 HZZGF DC Hipot Tester USER MANUAL Huazheng Electric Manufacturing (Baoding) Co., Ltd...
- Page 2 Preface Welcome to choose the products of Huazheng Electric Manufacturing (Baoding) Co., LTD., we will provide you with comprehensive technical support and service assurance. This product should be used by qualified persons. Please read the operation manual carefully before testing, to understand the contents,the technical parameters, performance and operation method of the equipment.
- Page 3 has a small capacity, it is easy to burn out when discharging large capactive samples. ● The suspending conductor in the test area and a certain range of surrounding areas should be grounded during the test to prevent the high voltage electric field against producing high voltage to its inductive charging, endangering the safety of people and equipment.
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Page 4: Table Of Contents
Contents I. Product Introduction........................1 II.Working Principle Diagram......................2 III.Instructions............................4 IV.Instructions For DC High Voltage Optical Fiber Microammeter........12 V.Fault Inspection and Treatment....................15 VI.Packing List..........................16... -
Page 5: Product Introduction
10. HZZGF series intelligent DC Hipot Tester has on-line operation function and built-in on-line control software. The computer (such as equipped PC) can realize online... -
Page 6: Ii.working Principle Diagram
II.Working Principle Diagram FIG. 1-1 Working principle diagram... - Page 7 Main technical performance HZZGF Series of main technical indicators specifications 100/20 120/20 200/10 300/10 400/2 400/3 400/5 Technical parameters Rated output voltage 200/300 200/400 200/400 200/400 (kV) Rated output current (mA) Rated output power 2000 2400 2000 3000 1200 2000...
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Page 8: Iii.instructions
III.Instructions 1、Control Box See figure 4-1 Figure 4-1a front panel of control box Figure 4-1b back panel of control box 1.Control lever: used for setting parameters and regulating voltage. It can be rotated and pressed. Press can be divided into short-time press and long-time press. - Page 9 when it boosts to a certain high voltage, press the button, the voltage drops to 75% of the original value, and remains at this. This function is specially designed for zinc oxide arrester to test the leakage current at 0.75U .
- Page 10 2.Voltage Booster See figure 4. 1.Grading ring 2.Upper booster 3.Lower booster 4.IF connection 5.Measurement connection 6.Ground terminal 7.Cross roller support bracket 4. Menu Function Description P 4-4.1 Main Menu P 4-4.2 System setting...
- Page 11 P 4-4.3 Manual test setting P 4-4.4 Auto test setting P 4-4.5 MOA test setting P 4-4.6 Testing P 4-4.7 Auto testing result P 4-4.8 Record query 1. System Setting (refer to the P 4-4.2) Clock setting: adjust the display time of the system (note: press and hold the knob to exit the setting).
- Page 12 current. 2. Boosting voltage parameter Settings Voltage booster section number setting: set according to the actual use of voltage booster section.It is used to adjust the voltage ratio of the inner part. Test voltage setting: refer to the P 4-4.3 and P 4-4.4,this parameter is used for setting manual and automatic voltage boost and timing trigger.
- Page 13 5. Test Operation 1.Manual boost mode After starting up, enter the main menu （P 4-4.1), rotate the control lever to make the cursor point to the "manual boost" option, click the control lever and enter the parameter setting interface of manual test mode （ P 4-4.3). After setting various parameters according to specific test requirements, enter the test boost interface.
- Page 14 requirements, enter the boost interface. At this time, after pressing the “HV on” button, The system will automatically boost. When it reaches the set test current, it will stabilize and start timing.After the timing is finished,system will automatically drop to 75% of the original voltage.When voltage is stabilizing and the time starts over,system will automatically drop to zero, show up the test results and print interface（P 4-4.7), to make a selection after finished test.
- Page 15 4-6a). Figure 4-6a Microampere Access Test C High Voltage Side Wiring Diagram The microammeter shall be connected with the test product by special shielded wire. The shielding leads of the high voltage leads should be closely connected with the shielding of the microammeter. To eliminate the effect of surface leakage current on the sample, the bare metal cord can be connected to the shield of the high-voltage lead after tightly winding several times at the high-potential end of the sample (see figure 4-6b).
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Page 16: Iv.instructions For Dc High Voltage Optical Fiber Microammeter
can be wound several times around the potential end of the sample and connected to the ground together with the shield of the microammeter (see figure 4-6d). FIG. 4-6c Microammeter for Cχ bottom wiring diagram Figure 4-6d wiring diagram of surface effect of Cχ excluded sample 7、Operation After Protection Operation During the test, low-voltage over-current, low-voltage over-voltage, high-voltage over-current, high-voltage over-voltage, discharge and other phenomena will... - Page 17 FIG. 5 High-voltage shielded fiber microammeter 2.Main Technical Performance Power supply： 2 pcs of #5 batteries Input impedance of microammeter： <60 ohm Current display range： 0~1999.9uA 2000~19999uA Accuracy of current display： 0.5% Input overload current： 200mA The principle of this meter is the Faraday cage equipotential shielding method. All measuring parts are inside the shield of the metal sphere.
- Page 18 high-voltage wiring of the subject with good insulation. 4. This meter is provided with an optical fiber interface, through which the current information measured by the microammeter can be sent to the intelligent dc tester control box for display (in system Settings, select the microammeter and set it as [optical fiber]). 5.
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Page 19: V.fault Inspection And Treatment
V.Fault Inspection and Treatment Phenomena Causes Treatment 1. Power line is open The green light does not turn on Replace the power circuit. when the power switch is switched cord. 2. The fuse of the power Replace the fuse. supply is fused. 1 Optical fibers are not Connecting optical Optical fiber micro-ampere meter... -
Page 20: Vi.packing List
VI.Packing List Item Control Unit 1 pc High voltage booster 2 pcs Current limiting resistor 1 pc Discharging rod with ground lead 1 pc High voltage testing cable 1 pc Intermediate frequency cable 1 set Ground lead 1 set Power cable 1 pc Fuses several...
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