Fully automatic insulation oil dielectric strength tester

1ZIJJ-IIFully automatic insulation oil dielectric strength testersummarize

The dielectric strength tester for insulating oil is a high-precision, fully digital industrial instrument developed by all scientific and technical personnel of our company, based on the relevant provisions of the national standard GB507-1986 and the industry standard DL/T846.7-2004, and utilizing our own advantages through multiple on-site tests and long-term unremitting efforts. To meet the needs of different users, this series of instruments can be divided into single cup three cup and multi cup models. The instrument is easy to operate and has a beautiful and elegant appearance. Due to the use of fully automatic digital microcomputer control, it has high measurement accuracy, strong anti-interference ability, and is safe and reliable.

IIZIJJ-IIFully automatic insulation oil dielectric strength testerInstrument Features

1. The instrument is controlled by a large capacity microcontroller, which ensures stable and reliable operation;

2. The instrument is equipped with a wide range watchdog circuit to prevent system crashes;

3. Multiple operation options, the instrument program has two national standard methods GB507-1986 and GB507-2002, industry standard DL/429, international standard IEC156, and custom operations, which can adapt to different users' multiple choices;

4. The instrument oil cup is made of special glass and cast in one go, which eliminates the occurrence of interference phenomena such as oil leakage;

5. The high voltage sampling design of the instrument allows the test values to directly enter the A/D converter, avoiding errors caused in the analog circuit and making the measurement results more accurate;

6. The instrument has functions such as overcurrent, overvoltage, short circuit protection, and has anti-interference ability with good electromagnetic compatibility;

7. Portable structure, easy to move, convenient for both indoor and outdoor use.

三、 ZIJJ-IIFully automatic insulation oil dielectric strength testertechnical indicators

1. Booster capacity 1.5 kVA

2. Step up speed: 0.5kV/s-5.0kV/s (increasing every 0.5), with ten options to choose from

Error -0.2kV/s

3. Output voltage 0-80 kV (optional)

4. Voltage accuracy (2% reading+2 words)

5. Power distortion rate<1%

6. Electrode gap standard 2.5 mm

7. Test frequency 6 times (1-10 times optional)

8. Rest time 900S (0-5900 S optional)

9. Interval static time 300S (0-5900S optional)

10. Mixing time 15S (0-99S optional)

11. Display method: Large screen LCD Chinese character display

12. The communication interface comes standard with a 232 communication interface.

13. Dimensions: Length 430 mm; Width 350 mm; Height 370 mm

14. Instrument weight 36 kg

四、 ZIJJ-IIFully automatic insulation oil dielectric strength testerUsage conditions

1. Environmental temperature: 0-40 ℃

2. Relative humidity ≤ 85%

3. Working power supply AC 220V ± 20%

4. Power frequency 50 Hz ± 5 Hz

5. Power consumption<200 W

5、 Description of chassis and panel components

1. The LCD screen displays relevant information such as date, time, operating parameters, test results, and operation menu prompts;

2. Function key selection to set operating parameters;

3. Printer printing test results;

4. Press the switch to open or close the box cover;

When the indicator light is on, it indicates that the relevant operation steps are in progress;

6. After opening the oil cup box cover, place or remove the oil cup and close it before testing can be carried out;

7. Temperature and humidity sensors measure Celsius temperature and relative humidity, and convert them into digital signals for display;

8. Reliable ground wire connection column for ground wire poles;

9. The power socket and switch should be properly plugged into the AC220V 50Hz power cord

6、 Diagram of Operation Steps
1. Plug in the power cord, turn on the power switch, and the LCD screen displays the power on page (Figure 1)

Figure 1. Power on page
2. Under the page in Figure 1, press the settings button to enter the next level page (Figure 2);

Figure 2. Select subpage
3. On the page shown in Figure 2, press the selection key to move the cursor √ to GB1986, and press the confirm key to enter the national standard 1986 setting subpage (Figure 3).

Figure 3. GB1986 subpage
On the page shown in Figure 3, press the+or - keys to set the stop and rise voltage. The default value is 80 kV, and the optional range is 10 kV to 80 kV (with a gear increment of 10 kV). After selecting, press the confirm button to return to the boot page, and press the start button to proceed with the test.
Note: The page selection key in Figure 3 is reserved for selecting multiple cup positions!

4. On the page shown in Figure 2, press the selection key to move the cursor √ to GB2002, and press the confirm key to enter the national standard 2002 settings subpage (Figure 4).

Figure 4. GB2002 subpage
On the page shown in Figure 4, press the+or - keys to set the stop and rise voltage. The default value is 80 kV, and the optional range is 10 kV to 80 kV (with a gear increment of 10 kV). After selecting, press the confirm button to return to the boot page, and press the start button to proceed with the test.
Note: The page selection key in Figure 4 is reserved for selecting multiple cup positions!

The other standard setting methods are the same as the national standard!

5. On the page shown in Figure 2, press the selection key to move the cursor √ to the time setting position, and press the confirm key to enter the time setting sub page (Figure 5).

Figure 5. Time setting subpage
Press the selection key to move the cursor to the year, month, day, hour, and minute positions, press the+or - keys to select a specific value, press the confirm key to confirm, and return to the boot page;

6. On the page shown in Figure 2, press the selection key to move the cursor √ to the custom settings section, and press the confirm key to enter the custom settings sub page (Figure 6);

Figure 6. Custom settings subpage

On the page shown in Figure 6, press the selection key to move the cursor to the corresponding option, and then press the+or - key to set the relevant parameters. among which

The optional range for settling time is 1 to 99 minutes (with a gear increment of 1 minute);

The interval time can be selected within the range of 1 to 99 minutes (with a gear increment of 1 minute);

The mixing time can be selected within the range of 1 to 99 seconds (with a gear increment of 1 second);

The optional range for stopping and raising voltage is 10-80 kV (with a gear increment of 10kV). When the instrument reaches the stop voltage, it will stop boosting and enter a hold state. If there is no breakdown for 15 seconds, the instrument will default to the current stopping voltage as the insulation oil breakdown voltage;

The optional range for the number of compressions is 1 to 10 times (with a gear increment of 1 time); After setting up, press the back button to return to the start page and save the set data. Press the start button to proceed with the test.
7. The breakdown voltage value and the number of cycles are automatically stored each time. After the measurement is completed, the test is displayed as complete. Then, press the confirm button to return to the startup page (Figure 1), and press the print or display button to enter the storage record of the breakdown voltage value and average value of the oil cup each time (Figure 7).

Figure 7. Display subpages
Press the print button to print the test results, and press the return button to return to the boot page (Figure 1). This interface has a data upload function, which can be connected to a computer through the 232 interface, and by pressing the upload button, corresponding data can be uploaded to the computer.

七、 ZIJJ-IIFully automatic insulation oil dielectric strength testerPrecautions

1. Before using this instrument, be sure to read this operation manual carefully;

2. The instrument operator should be familiar with the general usage knowledge of electrical equipment or analytical instruments;

3. This instrument can be used both indoors and outdoors, but should be avoided from places such as rain, corrosive gases, high concentrations of dust, high temperatures, or direct sunlight;

4. The oil cup should be kept clean. During the shutdown period, a sufficient amount of dry and qualified insulating oil should be added to soak and keep the oil cup from getting damp;

5. After continuous use for one month, the electrode should be inspected once to check for any changes in the electrode gap. Use a magnifying glass to observe for any darkening on the electrode surface. If this is the case, use a silk cloth to wipe the electrode surface and readjust the electrode gap to meet the requirements;

6. The maintenance, repair, and debugging of the instrument should be completed by professionals;

7. After connecting the power supply, operators are strictly prohibited from touching the outer shell of the oil cup box cover to avoid the risk of electric shock!

8. Before connecting the power supply, carefully check whether the connecting wires are secure and the instrument casing must be reliably grounded!

9. If any abnormalities are found during the use of this instrument, the power should be immediately cut off.

八、 ZIJJ-IIFully automatic insulation oil dielectric strength testerSimple troubleshooting

1. If there is no response when starting up, check if the power cord is properly plugged in and if the fuse is functioning properly

Whether it is intact and undamaged;

2. Check if the oil cup box cover is securely closed without increasing the pressure;

3. Check if the boost speed is limited by the normal and non breakdown check settings;

4. After breakdown, if there is no display, check if there is any dirt in the oil cup;

5. Check if the printer has paper if it cannot print out;

6. Replace the printing paper. The printer has already installed printing paper at the factory. If the printing paper is used up, you need to install a new printing paper by yourself. Installation method: Open the printer's paper compartment, place the printing paper in it, and extend a portion. The printing paper should face the direction of the thermal sensitive sawtooth.