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Dear Client
Thank you for Purchasing our GM-5kV Megohmmeter. Please
read the manual in detail prior to first use, which will help you use
the equipment skillfully.
company's products continually, so there may be
slight differences between your purchase equipment
and its instruction manual. You can find the changes
in the appendix. Sorry for the inconvenience. If you have further
questions, welcome to contact with our service department.
may bring voltage, when you plug/draw the test wire or
power outlet, they will cause electric spark. PLEASE
CAUTION RISK OF ELECTRICAL SHOCK!
Company Address:
T4，No. 41, High-tech 2 Road，East Lake High-tech Development Zone，
Wuhan
Sales Hotline: 86-27- 87457960
After Service Hotline: 86-27- 87459656
Fax: 86-27- 87803129
E-mail: qiao@hvtest.cc
Website: www.hvtest.cc
Our aim is to improve and perfect the
The input/output terminals and the test column
1
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Related Manuals for HVTest GM-5kV
Summary of Contents for HVTest GM-5kV
- Page 1 Dear Client Thank you for Purchasing our GM-5kV Megohmmeter. 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.
- Page 2 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.
- Page 3 shock, the grounding conductor must be connected to earth ground. Before making connections to the input or output terminals of the product, please do check that the product is properly grounded. 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.
- Page 4 －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.
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Page 5: Table Of Contents
Contents Safety precautions before the experiment......6 I. Overview..................7 II. Features..................7 III. Main Technique Performance..........8 IV. Working Principle..............9 V. Panel layout................10 VI. Operation Instructions............12 VII. Problems and Solutions............14 VIII. Packing List................15 IX. Attached drawing..............16... -
Page 6: Safety Precautions Before The Experiment
Safety precautions before the experiment 1. For safety, before use the instrument must be well earthed. That’s because the measured target connects to high voltage power, and exists power frequency leakage. 2. Once high voltage has started, do not use manual discharge method to check the instrument. -
Page 7: Overview
I. Overview With the rapid development of China power industry, electrical preventive experiment is an important aspect of electrical power system safe operation a nd maintenance work. Insulation diagnosis is an important tool to detect the in sulation or fault of electrical equipment Currently, electrical equipment (such as transformers, generators, etc.) toward the trend of large capacity, high voltage, structural diversification and sealing, this requires insulation resistance tester with advantages of large... -
Page 8: Main Technique Performance
5. With timing function, remind users to record, and analyze absorptance and polarization index of measured target. 6. High quality: The key parts are all imported components, to ensure accuracy and accurate. 7. Easy to use: one-piece chassis, small size, light weight, easy to carry. 8. -
Page 9: Working Principle
6. Timing and alarm functions: maximum value of stopwatch is 19 minutes and 59 seconds. 20 minutes for a cycle. The stopwatch will tell the time at these time points: 15 seconds, 60 seconds and every 60 seconds. When telling time, resistance readings hold for 3 seconds. If the measured resistance is below the lower limit of range, the reading is invalid and the instrument will continuously sound to give an alarm. -
Page 10: Panel Layout
V. Panel layout 1. +: HV output 2.Guard: protection 3/4. -: earth 5. "Resistance gear" indication 6. Timing switch 7.low battery 8. “charger input” 9. “ON” 10. Power 11. Resistance range 12. “Voltage adjust” 13. Voltage range 14. “Push to test” 15 . - Page 11 surface resistance of measured object and the leakage interference of measured circuit. 3/4. “- "ground terminal: it is the terminal that the instrument safely connects the ground and measured target. Water pipe can be used as earth terminal. Metal shell, transformer core and cable shield of motor are measured zero terminal.
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Page 12: Operation Instructions
17. "Time" table: it shows the test duration and is also used to calculate the polarization index / absorption ratio VI. Operation Instructions The instrument should be charged before use (full charge time is 8 hours, its indicator light change from red to green), in order to avoid power-off during test. - Page 13 4. Turn power supply on Turn power supply on, the indicator light above it will glow, “kV” voltage meter display 0.00kV. 5. Test start Press the "high voltage control" button, and the high voltage will be output from the + terminal. The "kV" meter will display the voltage value between + -. Press the "timing switch"...
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Page 14: Problems And Solutions
off and remove the wire. VII. Problems and Solutions 1. Instrument problems and solutions Problem Reason Solution The battery voltage is less Power light is off work Please charge timely than 12V The instrument has not be Shell discharge Safe ground! grounded Charge time is more than 8 hours, but the... -
Page 15: Packing List
VIII. Packing List 1. Instrument Host 2. HV Cable 3. Connect Line 4. Ground wire 5. Power Cord 6. Reference Resistance (1GΩ) 7. The instruction manual 8. Inspection report 9.Certificate... -
Page 16: Attached Drawing
IX. Attached drawing Insulation resistance measurement wiring diagrams for substation transformer and cable: 500KV down lead 200KV down lead 500KV power transformer LV winding insulation test wiring diagram 500KV power transformer HV winding insulation test wiring diagram Shielded cable insulation test wiring diagram...
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