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I. Overview

Many power systems, railway systems, large-scale petrochemical plants and enterprises

have a lot of electrical equipment whose internal insulation are mostly oil-filled insulation

type, and therefore, test on insulating oil dielectric strength is common and necessary. To

meet the needs of the market, we have developed and produced a series of insulating oil

dielectric strength testers according to national standard GB/T507-2002, industry

standard DL429.9-91 and the latest Electric Power Industry Standard DL/T846.7-2004 by

ourselves. This instrument, by using a single-chip microcomputer as the core, can operate

in full automation with high accuracy, greatly improving work efficiency and reducing the

labor intensity of workers.

II. Key Function and Feature

1. With a microprocessor, three cups of a body, automatically fulfill the withstand voltage

test for oil circulation with a range of 0

80KV (including boosting, maintaining, mixing,

standing, calculation, printing and other operations)

2. Display by large-screen LCD and prompt by English menu.

3.The instrument has the advantages of simple operation, the operators

only need a simple setup, instrument will automatically set in accordance

with 1-3 oil sample pressure test. Each oil sample, each breakdown

voltage value and the number of cycles will be automatically stored,after

completion of the test, the thermal printer can print out the breakdown

voltage value and average value.

4.Maintain power down, can store 100 experimental results, and can display the

current environment temperature and humidity.

5.Using single chip microcomputer control speed boost, voltage frequency

accuracy to 50HZ, makes the whole process easy to control.

6. Equipped with over-voltage, over-current and limit protections to ensure the safety of

operators

7. With the function of displaying the measured temperature and system clock.

Summary of Contents for HZJQ-3

Page 1: ...HZJQ 3 Transformer Oil BDV Tester Huazheng Electric Manufacturing Baoding Co Ltd...

Page 2: ...and operate and maintain the instrument according to the manual to prolong its service life Just a light press the test will be completed automatically is the operating characteristics of this instrum...

Page 3: ...verview 2 II Key Function and Feature 2 III Major Technical Indicators 3 IV Panel Description 3 V Operational Approach 4 VI Precautions 8 VII Maintenance 9 VIII Oil Cup Cleaning Method and Common Faul...

Page 4: ...ll the withstand voltage test for oil circulation with a range of 0 80KV including boosting maintaining mixing standing calculation printing and other operations 2 Display by large screen LCD and prom...

Page 5: ...sing speed 0 5 5 KV S adjustable 4 Standing time 15min adjustable 5 Boosting interval 5 min adjustable 6 Boosting times 0 10 time s 7 Booster capacity 1 5KVA 8 Measuring accuracy 3 9 Supply voltage AC...

Page 6: ...quipment to the earth wire firmly before start the equipment Sample the oil according to relevant standard Adjust the electrode distance inside the oil cup with standard gauge Clean the cup according...

Page 7: ...em parameters Press Enter key and enter the following interface T System Parameter Setting Start Testing Data Viewing and PrintingSTER TEMPERATURE 30 PERATURE 30 HUMIDITY 35 RH 55 RH 09 07 060 08 08 4...

Page 8: ...Cup bit setting according to the user testing oil sample placed oil cup bit shall prevail YES NO YES NO YES NO Print settings Users choose for themselves Automatic Printing YES NO Clock settings User...

Page 9: ...to priority finish 3 cups bit again from 1th to begin testing until have completed the user setting the boost times buzzer beep press the Back key to return the initial interface Data viewing and prin...

Page 10: ...ant national and industrial standards 2 The operators or other personnel are strictly forbidden to touch the casing after the power is switched on to avoid accidents 3 The power shall be cut off immed...

Page 11: ...mented in line with the GB2536 25th of transformer oil VIII Oil Cup Cleaning Method and Common Fault Clearances 1 Oil Cup Cleaning Method Wipe the electrode surfaces and bars again and again with clea...

Page 12: ...blade put them into the oil sample to be tested and wash 3 Oil Cup Storage Method 1 Fill the cup with good insulating oil after the test is finished and place it stable Method 2 Clean and dry the cup...

Page 13: ...11 Check break of high voltage line Light display contrast Adjust the potentiometer on the circuit board Printer failure Check plugging of printer power line Check plugging of printer data line...

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