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Dear Client Thank you for Purchasing our HTYB-3H Zinc Oxide Arrester Tester. Please read the manual in detail prior to first use, which will help you use the equipment skillfully. Our aim is to improve and perfect the company's products continually, so there may be slight differences between your purchase equipment and its instruction manual.
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SERIOUS COMMITMENT All products of our company carry one year limited warranty from the date of shipment. If any such product proves defective during this warranty period we will maintain it for free. Meanwhile we implement lifetime service. Except otherwise agreed by contract.
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with the input/output port. Pay Attention to the Ratings of All Terminals To prevent the fire hazard or electric shock, please be care of all ratings and labels/marks of this product. Before connecting, please read the instruction manual to acquire information about the ratings. Do Not Operate without Covers Do not operate this product when covers or panels removed.
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-Security Terms Warning: indicates that death or severe personal injury may result if proper precautions are not taken Caution: indicates that property damage may result if proper precautions are not taken.
HTYB-3H Zinc Oxide Lightning Arrester Tester Table of Contents I. Overview:........................1 II. Structure Diagram for Instrument Panel:..............1 III. Main Technical Indexes:....................1 IV. Wiring Diagrams:.......................1 V. Instrument Operation:....................2 VI. Measurement Principle and Data Analysis:............4 VII. Precautions: ......................5 VIII. Packing List of Instrument:..................6...
Metal Oxide Arrester Tester Operating Manual I. Overview: The metal oxide arrester tester is used for the measurement and analysis of metal oxide arrester [MOA] leakage. It is mainly used for measuring the resistive current to analyze the degree of zinc oxide aging and damp. The field charged test shall conform to Electric Power Industry Standard of the People's Republic of China DL474.5-92 Guide for Insulation Test on Site - Lightning Arrester Tests.
Figure 2 In this method, the adjustable high voltage power supply shall be provided, the voltage signal input is connected to the end of the measuring meter for the testing transformer, one end of the metal oxide arrester is connected to the high voltage, the other end is grounded through the protector to be connected with the ground of the instrument and the ground of the high voltage power supply.
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Arrester characteristics tester System Settings Data Measurement Data View Instrument Calibration Time Calibration ↑↓ Move Enter Figure 4 Main Menu 2. Click System Settings to display the menu as shown in Figure 5: Arrester characteristics tester Compensation Angle +0.000 Transformation Ratio 01000 Device No 0000-A ↑↓...
voltage U is the product of input reference voltage Uref and K. As K does not affect the measurement of angle or current magnitude, it can be set to 1, directly displayed as U1. Note that the correct measurements cannot be obtained when there is no U1 input. For the stored data, the voltage transformation ratio can be modified, but the modified value only influences the currently displayed/printed data and cannot be saved.
Considering δ=90°, Φ is equivalent to the dielectric loss angle, so it is very simple to evaluate MOA with Φ; Φ is 81° 86° if there is no interphase interference. According to the requirement that the resistive current cannot exceed 25% of the total current, Φ cannot be less than 75.5°. refer to the following table for the segmented evaluation of MOA performance: Φ...
VIII. Packing List of Instrument: 1. Host 2. Voltage signal sampling line 3. Current signal sampling line 4. Power line 5. Fuse 6. Special protector 7. Operating manual 8. Product certificate Appendix: I. Main Problems of Metal Oxide Arrester in Operation 1.
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you understand the change to the resistive leakage current of the metal oxide arrester, you can predict whether the above failures occur.
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